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httrack/src/htsparse.c
Xavier Roche 68897b09ce Re-fetch a self-redirect cookie wall instead of dropping it (#537) 
* Re-fetch a self-redirect cookie wall instead of dropping it (#15)

A page that 302-redirects to itself only to set a cookie (a consent or session
"cookie wall") was lost: the self-redirect guard treated the loop as a crazy
server and never re-issued the request, so the real content behind the cookie
was never fetched.

The redirect's Set-Cookie is already folded into the shared jar before the
guard runs, so a re-issue would carry it. In the delayed-type loop
(hts_wait_delayed) snapshot the jar before the request; when a self-redirect
changed it, evict the cached fast-header for that URL and re-fetch once with the
new cookie. Termination is bounded: the jar stops changing once the cookie is
satisfied (real walls resolve in two requests), and the existing loops<7 cap
backstops a server that mints a fresh cookie on every hit.

Under the default HARD delayed-type mode every URL routes through this loop, so
both unknown-ext (wall.php) and known-ext (wall.html) walls are covered. A wall
reached only under -%N0/1 still takes the hts_mirror_check_moved path, which
cannot see the Set-Cookie without an ABI change; left as a known limitation.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Signed-off-by: Xavier Roche <roche@httrack.com>

* Test the cookie-wall give-up and retry-cap paths (#15)

The happy-path test only drove a wall that sets its cookie on the first hit, so
an engine that dropped the jar-changed gate and retried every self-redirect would
still pass. Add two cases that pin the gate and the bound:

- cookiewall3: a self-redirect that sets no cookie must give up at once (asserts
  the "loop to same filename" guard fires and the page is not mirrored). A
  dropped gate would retry and skip that log line.
- cookiewall4: a self-redirect that mints a fresh cookie every hit must stop at
  the loops<7 cap, not spin (asserts the crawl terminates, takes the retry path,
  and does not mirror the wall).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Signed-off-by: Xavier Roche <roche@httrack.com>

* Scope the cookie-wall retry to this URL's own cookies (#15)

The retry trigger compared the whole shared cookie jar before and after the
request. Because the jar is one process-wide store mutated by every in-flight
fetch, a concurrent slot's Set-Cookie landing mid-loop could flip the compare
and force a needless (though bounded) re-fetch of an unrelated self-redirect.

Compare instead the Cookie header THIS url would send, built for its own
host/path. A Set-Cookie from another host no longer trips the retry; a change
in this URL's own outgoing cookies (its self-redirect setting one) still does,
which is exactly the wall we want to re-fetch. No jar-wide snapshot, and the
same natural termination: once the cookie stabilizes the header stops changing.

Reuses append_cookie_header via http_cookie_header (renamed from the
_selftest-suffixed wrapper, now that engine code calls it too).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Signed-off-by: Xavier Roche <roche@httrack.com>

---------

Signed-off-by: Xavier Roche <roche@httrack.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-12 09:44:40 +02:00

4721 lines
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/* ------------------------------------------------------------ */
/*
HTTrack Website Copier, Offline Browser for Windows and Unix
Copyright (C) 1998 Xavier Roche and other contributors
SPDX-License-Identifier: GPL-3.0-or-later
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Ethical use: we kindly ask that you NOT use this software to harvest email
addresses or to collect any other private information about people. Doing so
would dishonor our work and waste the many hours we have spent on it.
Please visit our Website: http://www.httrack.com
*/
/* ------------------------------------------------------------ */
/* File: htsparse.c parser */
/* html/javascript/css parser */
/* and other parser routines */
/* Author: Xavier Roche */
/* ------------------------------------------------------------ */
/* Internal engine bytecode */
#define HTS_INTERNAL_BYTECODE
#include <fcntl.h>
#include <ctype.h>
/* File defs */
#include "htscore.h"
/* specific definitions */
#include "htsbase.h"
#include "htsnet.h"
#include "htsbauth.h"
#include "htsmd5.h"
#include "htsindex.h"
#include "htscharset.h"
#include "htsencoding.h"
#include "htssniff.h"
/* external modules */
#include "htsmodules.h"
// htswrap_add
#include "htswrap.h"
// parser
#include "htsparse.h"
#include "htsback.h"
// arrays
#include "htsarrays.h"
/** Append bytes to the output buffer up to the pointer 'html'. **/
#define HT_add_adr do { \
if ( (opt->getmode & 1) != 0 && ptr > 0 ) { \
const size_t sz_ = html - lastsaved; \
if (sz_ != 0) { \
TypedArrayAppend(output_buffer, lastsaved, sz_); \
lastsaved = html; \
} \
} \
} while(0)
/** Append to the output buffer the string 'A'. **/
#define HT_ADD(A) TypedArrayAppend(output_buffer, A, strlen(A))
/* clang-format off: an edit realigns all backslashes, churning the macro. */
/* clang-format off */
/** Append 'A' to the output buffer, html-escaped; FACTOR = max byte expansion. **/
#define HT_ADD_HTMLESCAPED_ANY(A, FUNCTION, FACTOR) do { \
if ((opt->getmode & 1) != 0 && ptr>0) { \
const char *const str_ = (A); \
size_t size_; \
TypedArrayEnsureRoom(output_buffer, strlen(str_) * (FACTOR) + 1024); \
size_ = FUNCTION(str_, &TypedArrayTail(output_buffer), \
TypedArrayRoom(output_buffer)); \
TypedArraySize(output_buffer) += size_; \
} \
} while(0)
/** Append to the output buffer the string 'A', html-escaped for &. **/
#define HT_ADD_HTMLESCAPED(A) \
HT_ADD_HTMLESCAPED_ANY(A, escape_for_html_print, HTS_HTMLESCAPE_MAXEXP)
/**
* Append to the output buffer the string 'A', html-escaped for & and
* high chars.
**/
#define HT_ADD_HTMLESCAPED_FULL(A) \
HT_ADD_HTMLESCAPED_ANY(A, escape_for_html_print_full, HTS_HTMLESCAPE_FULL_MAXEXP)
/* clang-format on */
// does nothing
#define XH_uninit do {} while(0)
#define HT_ADD_FOP
/* Mutable extended-context fields: one source of truth so the DEFINE/SET/SAVE
load and store lists can't drift apart. */
/* clang-format off */
#define ENGINE_MUTABLE_FIELDS(X) \
X(int, error, stre->error_) \
X(int, store_errpage, stre->store_errpage_) \
X(int, makeindex_done, stre->makeindex_done_) \
X(FILE *, makeindex_fp, stre->makeindex_fp_) \
X(int, makeindex_links, stre->makeindex_links_) \
X(LLint, stat_fragment, stre->stat_fragment_)
#define ENGINE_FIELD_DECLARE(type, name, src) type name = *(src);
#define ENGINE_FIELD_LOAD(type, name, src) name = *(src);
#define ENGINE_FIELD_STORE(type, name, src) *(src) = name;
#define ENGINE_DEFINE_CONTEXT() \
ENGINE_DEFINE_CONTEXT_BASE(); \
htsblk* const r HTS_UNUSED = stre->r_; \
hash_struct* const hash HTS_UNUSED = stre->hash_; \
char* const codebase HTS_UNUSED = stre->codebase; \
char* const base HTS_UNUSED = stre->base; \
const char * const template_header HTS_UNUSED = stre->template_header_; \
const char * const template_body HTS_UNUSED = stre->template_body_; \
const char * const template_footer HTS_UNUSED = stre->template_footer_; \
HTS_UNUSED char* const makeindex_firstlink = stre->makeindex_firstlink_; \
ENGINE_MUTABLE_FIELDS(ENGINE_FIELD_DECLARE) \
/* load-once (kept out of SET/SAVE): re-reading would reset the throttle */ \
HTS_UNUSED TStamp makestat_time = stre->makestat_time; \
HTS_UNUSED FILE* makestat_fp = stre->makestat_fp
#define ENGINE_SET_CONTEXT() \
ENGINE_SET_CONTEXT_BASE(); \
ENGINE_MUTABLE_FIELDS(ENGINE_FIELD_LOAD)
#define ENGINE_LOAD_CONTEXT() \
ENGINE_DEFINE_CONTEXT()
#define ENGINE_SAVE_CONTEXT() \
ENGINE_SAVE_CONTEXT_BASE(); \
ENGINE_MUTABLE_FIELDS(ENGINE_FIELD_STORE)
/* clang-format on */
#define _ROBOTS ((robots_wizard*)opt->robotsptr)
/* JS-detection automaton states; INSCRIPT_DEFAULT is the synthetic "any other
char" column of the transition table. */
typedef enum {
INSCRIPT_START = 0,
INSCRIPT_ANTISLASH,
INSCRIPT_INQUOTE,
INSCRIPT_INQUOTE2,
INSCRIPT_SLASH,
INSCRIPT_SLASHSLASH,
INSCRIPT_COMMENT,
INSCRIPT_COMMENT2,
INSCRIPT_ANTISLASH_IN_QUOTE,
INSCRIPT_ANTISLASH_IN_QUOTE2,
INSCRIPT_DEFAULT = 256
} INSCRIPT;
#define INSCRIPT_NSTATES 10 /* rows in the transition table */
/* Live view of the parser's automaton locals, set up once so the helpers below
can drive it without capturing them by lexical scope. */
typedef struct {
const int *inscript; /* nonzero while inside a script body */
const signed char (*table)[257]; /* [INSCRIPT_NSTATES][257] transitions */
INSCRIPT *pos; /* current state */
const char **html; /* parse cursor */
} script_automate;
/* Feed the current *html byte to the automaton. No-op outside a script body. */
static void hts_automate_lookup(const script_automate *aut) {
if (*aut->inscript) {
int next = aut->table[*aut->pos][(unsigned char) **aut->html];
if (next < 0) {
next = aut->table[*aut->pos][INSCRIPT_DEFAULT];
}
assertf(next >= 0 && next < INSCRIPT_NSTATES);
*aut->pos = (INSCRIPT) next;
}
}
/* Attribute name owning the quoted value at 'quote' inside a tag, spanning
[name, *nend); NULL when the quote is not an attribute value. */
static const char *dirty_attr_name(const char *quote, const char *tag_start,
const char **nend) {
const char *a = quote - 1;
while (a > tag_start && is_taborspace(*a))
a--;
if (a == tag_start || *a != '=')
return NULL;
a--;
while (a > tag_start && is_taborspace(*a))
a--;
*nend = a + 1;
while (a > tag_start && *a != '=' && *a != '\"' && *a != '\'' &&
!is_realspace(*a))
a--;
a++;
// a name starting right after '<' is the tag name, not an attribute
return a < *nend && a > tag_start + 1 ? a : NULL;
}
/* Accept the in-tag quoted value at 'quote' for dirty parsing? Resolves the
owning attribute itself (intag_startattr is unreliable mid-tag) and rejects
no-detect/xmlns names. */
static hts_boolean dirty_attr_detectable(const char *quote,
const char *tag_start) {
const char *nend;
const char *name = dirty_attr_name(quote, tag_start, &nend);
int i;
if (name == NULL)
return HTS_FALSE;
for (i = 0; strnotempty(hts_nodetect[i]); i++) {
const int l = strfield(name, hts_nodetect[i]);
if (l && name + l == nend)
return HTS_FALSE;
}
i = strfield(name, "xmlns");
if (i && (name + i == nend || name[i] == ':'))
return HTS_FALSE;
return HTS_TRUE;
}
/* Advance the cursor by 'steps' bytes, feeding each to the automaton. */
static void hts_automate_increment(const script_automate *aut, int steps) {
while (steps > 0) {
(*aut->html)++;
hts_automate_lookup(aut);
steps--;
}
}
/* Percent-encode the angle brackets of a string so it is safe to embed inside
an HTML comment (the default footer) or any other HTML context. A URL holding
"-->" would otherwise close the footer comment and inject markup (issue #165).
Raw '<' and '>' are not valid URL characters, so encoding them is harmless. */
static const char *html_inline_safe(const char *src, char *dst, size_t size) {
size_t i, j;
for(i = 0, j = 0; src[i] != '\0' && j + 4 < size; i++) {
const char c = src[i];
if (c == '<' || c == '>') {
dst[j++] = '%';
dst[j++] = '3';
dst[j++] = (c == '<') ? 'C' : 'E';
} else {
dst[j++] = c;
}
}
dst[j] = '\0';
return dst;
}
/* Byte before html, or a space sentinel at the buffer start where html[-1]
would underflow; space reads as the word boundary the guards want there. */
static HTS_INLINE char html_prevc(const char *html, const char *start) {
return html > start ? html[-1] : ' ';
}
/* Drop a redirect Location's #fragment: a UA anchor, never part of the fetched
* resource (#204). */
static void url_drop_fragment(char *const url) {
char *const frag = strchr(url, '#');
if (frag != NULL)
*frag = '\0';
}
/* True if [s, s+len) is exactly an HTTP method token (XHR.open's first
argument is a method, not a URL: #218). Case-insensitive. */
static int is_http_method(const char *s, size_t len) {
static const char *const methods[] = {"GET", "POST", "PUT",
"DELETE", "HEAD", "OPTIONS",
"PATCH", "TRACE", NULL};
int i;
for (i = 0; methods[i] != NULL; i++) {
if (strlen(methods[i]) == len && strfield(s, methods[i]) == (int) len)
return 1;
}
return 0;
}
/* Percent-encode '(' and ')' in a link emitted into an unquoted url(...) (CSS
or JS): a literal ')' closes the token early and the UA mis-parses the value
(#163). The UA decodes %28/%29 back to the saved-on-disk name. */
static void escape_url_parens(char *const s, const size_t size) {
char BIGSTK buff[HTS_URLMAXSIZE * 2];
size_t i, j;
for (i = 0, j = 0; s[i] != '\0' && j + 3 < size && j + 3 < sizeof(buff);
i++) {
if (s[i] == '(' || s[i] == ')') {
buff[j++] = '%';
buff[j++] = '2';
buff[j++] = s[i] == '(' ? '8' : '9';
} else {
buff[j++] = s[i];
}
}
buff[j] = '\0';
strlcpybuff(s, buff, size);
}
/* Main parser */
int htsparse(htsmoduleStruct * str, htsmoduleStructExtended * stre) {
char catbuff[CATBUFF_SIZE];
/* Load engine variables */
ENGINE_LOAD_CONTEXT();
{
char *cAddr = r->adr;
int cSize = (int) r->size;
hts_log_print(opt, LOG_DEBUG, "engine: preprocess-html: %s%s", urladr(),
urlfil());
if (RUN_CALLBACK4(opt, preprocess, &cAddr, &cSize, urladr(), urlfil()) == 1) {
r->adr = cAddr;
r->size = cSize;
}
}
if (RUN_CALLBACK4(opt, check_html, r->adr, (int) r->size, urladr(), urlfil())) {
FILE *fp = NULL; // fichier écrit localement
const char *html = r->adr; // pointeur (on parcours)
const char *lastsaved; // adresse du dernier octet sauvé + 1
hts_log_print(opt, LOG_DEBUG, "scanning file %s%s (%s)..", urladr(), urlfil(),
savename());
/* Hack to avoid NULL char problems with C syntax */
/* Yes, some bogus HTML pages can embed null chars
and therefore can not be properly handled if this hack is not done
*/
if (r->adr != NULL) {
size_t i;
for(i = 0 ; i < (size_t) r->size ; i++) {
if (r->adr[i] == '\0') {
r->adr[i] = ' ';
}
}
}
// Indexing!
#if HTS_MAKE_KEYWORD_INDEX
if (opt->kindex) {
if (index_keyword
(r->adr, r->size, r->contenttype, savename(),
StringBuff(opt->path_html_utf8))) {
hts_log_print(opt, LOG_DEBUG, "indexing file..done");
} else {
hts_log_print(opt, LOG_DEBUG, "indexing file..error!");
}
}
#endif
// Now, parsing
if ((opt->getmode & HTS_GETMODE_HTML) && (ptr > 0)) {
// créer le fichier html local
HT_ADD_FOP; // écrire peu à peu le fichier
}
if (!error) {
// output HTML
TypedArray(char) output_buffer = EMPTY_TYPED_ARRAY;
time_t user_interact_timestamp = 0;
int detect_title = 0; // détection du title
int back_add_stats = opt->state.back_add_stats;
const char *in_media = NULL; // in other media type (real media and so..)
int intag = 0; // on est dans un tag
int incomment = 0; // dans un <!--
int inscript = 0; // dans un scipt pour applets javascript)
int inscript_locked = 0; // in locked script (ie. js file)
signed char inscript_state[INSCRIPT_NSTATES][257];
INSCRIPT inscript_state_pos = INSCRIPT_START;
const char *inscript_name = NULL; // script tag name
int inscript_tag = 0; // on est dans un <body onLoad="... terminé par >
char inscript_tag_lastc = '\0';
// terminaison (" ou ') du "<body onLoad=.."
int inscriptgen = 0; // on est dans un code générant, ex après obj.write("..
char scriptgen_q = '\0'; // caractère faisant office de guillemet (' ou ")
int nofollow = 0; // ne pas scanner
//
int parseall_lastc = '\0'; // dernier caractère parsé pour parseall
//
const char *intag_start = html;
const char *intag_name = NULL;
const char *intag_startattr = NULL;
int intag_start_valid = 0;
int intag_ctype = 0;
//
int emited_footer = 0; // emitted footer comment tag(s) count
//
int parent_relative = 0; // the parent is the base path (.js, .css..)
lastsaved = html;
/* Initialize script automate for comments, quotes.. */
memset(inscript_state, 0xff, sizeof(inscript_state));
inscript_state[INSCRIPT_START][INSCRIPT_DEFAULT] = INSCRIPT_START; /* by default, stay in START */
inscript_state[INSCRIPT_START]['\\'] = INSCRIPT_ANTISLASH; /* #1: \ escapes the next character whatever it is */
inscript_state[INSCRIPT_ANTISLASH][INSCRIPT_DEFAULT] = INSCRIPT_START;
inscript_state[INSCRIPT_START]['\''] = INSCRIPT_INQUOTE; /* #2: ' opens quote and only ' returns to 0 */
inscript_state[INSCRIPT_INQUOTE][INSCRIPT_DEFAULT] = INSCRIPT_INQUOTE;
inscript_state[INSCRIPT_INQUOTE]['\''] = INSCRIPT_START;
inscript_state[INSCRIPT_INQUOTE]['\\'] = INSCRIPT_ANTISLASH_IN_QUOTE;
inscript_state[INSCRIPT_START]['\"'] = INSCRIPT_INQUOTE2; /* #3: " opens double-quote and only " returns to 0 */
inscript_state[INSCRIPT_INQUOTE2][INSCRIPT_DEFAULT] = INSCRIPT_INQUOTE2;
inscript_state[INSCRIPT_INQUOTE2]['\"'] = INSCRIPT_START;
inscript_state[INSCRIPT_INQUOTE2]['\\'] = INSCRIPT_ANTISLASH_IN_QUOTE2;
inscript_state[INSCRIPT_START]['/'] = INSCRIPT_SLASH; /* #4: / state, default to #0 */
inscript_state[INSCRIPT_SLASH][INSCRIPT_DEFAULT] = INSCRIPT_START;
inscript_state[INSCRIPT_SLASH]['/'] = INSCRIPT_SLASHSLASH; /* #5: // with only LF to escape */
inscript_state[INSCRIPT_SLASHSLASH][INSCRIPT_DEFAULT] =
INSCRIPT_SLASHSLASH;
inscript_state[INSCRIPT_SLASHSLASH]['\n'] = INSCRIPT_START;
inscript_state[INSCRIPT_SLASH]['*'] = INSCRIPT_COMMENT; /* #6: / * with only * / to escape */
inscript_state[INSCRIPT_COMMENT][INSCRIPT_DEFAULT] = INSCRIPT_COMMENT;
inscript_state[INSCRIPT_COMMENT]['*'] = INSCRIPT_COMMENT2; /* #7: closing comments */
inscript_state[INSCRIPT_COMMENT2][INSCRIPT_DEFAULT] = INSCRIPT_COMMENT;
inscript_state[INSCRIPT_COMMENT2]['/'] = INSCRIPT_START;
inscript_state[INSCRIPT_COMMENT2]['*'] = INSCRIPT_COMMENT2;
inscript_state[INSCRIPT_ANTISLASH_IN_QUOTE][INSCRIPT_DEFAULT] = INSCRIPT_INQUOTE; /* #8: escape in '' */
inscript_state[INSCRIPT_ANTISLASH_IN_QUOTE2][INSCRIPT_DEFAULT] = INSCRIPT_INQUOTE2; /* #9: escape in "" */
const script_automate saut = {&inscript, inscript_state,
&inscript_state_pos, &html};
/* Primary list or URLs */
if (ptr == 0) {
intag = 1;
intag_start_valid = 0;
intag_name = NULL;
}
/* Check is the file is a .js file */
else
if ((compare_mime
(opt, r->contenttype, str->url_file,
"application/x-javascript") != 0)
|| (compare_mime(opt, r->contenttype, str->url_file, "text/css") !=
0)
) { /* JavaScript js file */
inscript = 1;
inscript_locked = 1; /* Don't exit js space upon </script> */
if (opt->parsedebug) {
HT_ADD("<@@ inscript @@>");
}
inscript_name = "script";
intag = 1; // because après <script> on y est .. - pas utile
intag_start_valid = 0; // OUI car nous sommes dans du code, plus dans du "vrai" tag
hts_log_print(opt, LOG_DEBUG, "note: this file is a javascript file");
// for javascript only
if (compare_mime
(opt, r->contenttype, str->url_file,
"application/x-javascript") != 0) {
// all links must be checked against parent, not this link
if (heap(ptr)->precedent != 0) {
parent_relative = 1;
}
}
}
/* Or a real audio */
else if (compare_mime(opt, r->contenttype, str->url_file, "audio/x-pn-realaudio") != 0) { /* realaudio link file */
inscript = intag = 0;
inscript_name = "media";
intag_start_valid = 0;
in_media = "LNK"; // real media! -> links
}
/* Or a m3u playlist */
else if (compare_mime(opt, r->contenttype, str->url_file, "audio/x-mpegurl") != 0) { /* mp3 link file */
inscript = intag = 0;
inscript_name = "media";
intag_start_valid = 0;
in_media = "LNK"; // m3u! -> links
} else if (compare_mime(opt, r->contenttype, str->url_file, "application/x-authorware-map") != 0) { /* macromedia aam file */
inscript = intag = 0;
inscript_name = "media";
intag_start_valid = 0;
in_media = "AAM"; // aam
}
/* Or a RSS file */
else if (compare_mime(opt, r->contenttype, str->url_file, "text/xml") != 0
|| compare_mime(opt, r->contenttype, str->url_file,
"application/xml") != 0) {
if (strstr(html, "http://purl.org/rss/") != NULL) // Hmm, this is a bit lame ; will have to cleanup
{ /* RSS file */
inscript = intag = 0;
intag_start_valid = 0;
in_media = NULL; // regular XML
} else { // cancel: write all
html = r->adr + r->size;
HT_add_adr;
lastsaved = html;
}
}
// Hack to prevent any problems with ram files of other files
*(r->adr + r->size) = '\0';
// ------------------------------------------------------------
// analyser ce qu'il y a en mémoire (fichier html)
// on scanne les balises
// ------------------------------------------------------------
opt->state._hts_in_html_done = 0; // 0% scannés
opt->state._hts_in_html_parsing = 1; // flag pour indiquer un parsing
base[0] = '\0'; // effacer base-href
do {
int p = 0;
int valid_p = 0; // force to take p even if == 0
int ending_p = '\0'; // ending quote?
int archivetag_p = 0; // avoid multiple-archives with commas
int srcset_p = 0; // srcset="url1 480w, url2 2x": list of URLs
int unquoted_script = 0;
INSCRIPT inscript_state_pos_prev = inscript_state_pos;
error = 0;
/* Break if we are done yet */
if (html - r->adr >= r->size)
break;
/*
index.html built here
*/
// Construction index.html (sommaire)
// Avant de tester les a href,
// Ici on teste si l'on doit construire l'index vers le(s) site(s) miroir(s)
if (!makeindex_done) { // autoriation d'écrire un index
if (!detect_title) {
if (opt->depth == heap(ptr)->depth) { // on note toujours les premiers liens
if (!in_media) {
if (opt->makeindex && (ptr > 0)) {
if (opt->getmode & HTS_GETMODE_HTML) {
p = strfield(html, "title");
if (p) {
if (html_prevc(html, r->adr) == '/')
p = 0; // /title
} else {
if (strfield(html, "/html"))
p = -1; // noter, mais sans titre
else if (strfield(html, "body"))
p = -1; // noter, mais sans titre
else if (html - r->adr >= r->size - 1)
p = -1; // noter, mais sans titre
else if (html - r->adr >= r->size - 2) // we got to hurry
p = -1; // xxc xxc xxc
}
} else
p = 0;
if (p) { // ok center
if (makeindex_fp == NULL) {
file_notify(opt, "", "",
fconcat(OPT_GET_BUFF(opt), OPT_GET_BUFF_SIZE(opt),
StringBuff(opt->path_html_utf8),
"index.html"), 1, 1, 0);
verif_backblue(opt, StringBuff(opt->path_html_utf8)); // générer gif
makeindex_fp =
filecreate(&opt->state.strc,
fconcat(OPT_GET_BUFF(opt), OPT_GET_BUFF_SIZE(opt),
StringBuff(opt->path_html_utf8),
"index.html"));
if (makeindex_fp != NULL) {
// Header
hts_template_format(makeindex_fp, template_header,
"<!-- Mirror and index made by HTTrack Website Copier/"
HTTRACK_VERSION " " HTTRACK_AFF_AUTHORS " -->", /* EOF */ NULL);
} else
makeindex_done = -1; // fait, erreur
}
if (makeindex_fp != NULL) {
char BIGSTK tempo[HTS_URLMAXSIZE * 2];
char BIGSTK s[HTS_URLMAXSIZE * 2];
char *a = NULL;
char *b = NULL;
s[0] = '\0';
if (p > 0) {
a = strchr(html, '>');
if (a != NULL) {
a++;
while(is_space(*a))
a++; // sauter espaces & co
b = strchr(a, '<'); // prochain tag
}
}
if (lienrelatif(tempo, sizeof(tempo), heap(ptr)->sav,
concat(OPT_GET_BUFF(opt),
OPT_GET_BUFF_SIZE(opt),
StringBuff(opt->path_html_utf8),
"index.html")) == 0) {
detect_title = 1; // ok détecté pour cette page!
makeindex_links++; // un de plus
strlcpybuff(makeindex_firstlink, tempo,
HTS_URLMAXSIZE * 2);
//
/* Hack */
if (opt->mimehtml) {
strlcpybuff(makeindex_firstlink,
"cid:primary/primary",
HTS_URLMAXSIZE * 2);
}
if ((b == a) || (a == NULL) || (b == NULL)) { // pas de titre
strcpybuff(s, tempo);
} else if ((b - a) < 256) {
b--;
while(is_space(*b))
b--;
strncpy(s, a, b - a + 1);
*(s + (b - a) + 1) = '\0';
}
// Decode title with encoding
if (str->page_charset_ != NULL &&
*str->page_charset_ != '\0') {
char *sUtf = hts_convertStringToUTF8(
s, strlen(s), str->page_charset_);
if (sUtf != NULL) {
/* UTF-8 can expand past s[]; truncate to fit */
snprintf(s, sizeof(s), "%s", sUtf);
freet(sUtf);
}
}
// Body
inplace_escape_uri_utf(tempo, sizeof(tempo));
hts_template_format(makeindex_fp, template_body, tempo, s, /* EOF */ NULL);
}
}
}
}
}
} else if (heap(ptr)->depth < opt->depth) { // on a sauté level1+1 et level1
hts_finish_makeindex(opt, &makeindex_done, &makeindex_fp,
makeindex_links, makeindex_firstlink,
template_footer, "primary", "primary");
}
} // if (opt->makeindex)
}
// FIN Construction index.html (sommaire)
/*
end -- index.html built here
*/
/* Parse */
if ((*html == '<') /* No starting tag */
&&(!inscript) /* Not in (java)script */
&&(!incomment) /* Not in comment (<!--) */
&&(!in_media) /* Not in media */
) {
intag = 1;
intag_ctype = 0;
intag_start = html;
for(intag_name = html + 1; is_realspace(*intag_name); intag_name++) ;
intag_start_valid = 1;
codebase[0] = '\0'; // effacer éventuel codebase
/* Meta ? */
if (check_tag(intag_start, "meta")) {
int pos;
// <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
if ((pos = rech_tageq_all(html, "http-equiv"))) {
const char *token = NULL;
int len = rech_endtoken(html + pos, &token);
if (len > 0) {
if (strfield(token, "content-type")) {
intag_ctype = 1;
} else if (strfield(token, "refresh")) {
intag_ctype = 2;
}
}
}
}
if (opt->getmode & HTS_GETMODE_HTML) { // sauver html
p = 0;
switch (emited_footer) {
case 0:
// We are looking for the first head so that we can declare the HTTP-headers charset early
// Emit as soon as we see the first <head>, <meta>, or <body> tag.
// FIXME: we currently emit the tag BEFORE the <head> tag, actually, which is not clean
if ((p = strfield(html, "<head>")) != 0
|| ((p = strfield(html, "<head")) != 0 && isspace(html[p]))
|| (p = strfield(html, "<body>")) != 0
|| ((p = strfield(html, "<body")) != 0 && isspace(html[p]))
|| ((p = strfield(html, "<meta")) != 0 && isspace(html[p]))
) {
emited_footer++;
} else {
p = 0;
}
break;
case 1:
// And the closing comment info tag
if ((p = strfield(html, "</html")) != 0) {
emited_footer++;
} else {
p = 0;
}
break;
default:
p = 0;
break;
}
if (p != 0) {
const char *eol = "\n";
if (strchr(r->adr, '\r'))
eol = "\r\n";
if (StringNotEmpty(opt->footer) ||
opt->urlmode != HTS_URLMODE_KEEP_ORIGINAL) {
if (StringNotEmpty(opt->footer)) {
char BIGSTK tempo[1024 + HTS_URLMAXSIZE * 2];
char gmttime[256];
char BIGSTK safe_adr[HTS_URLMAXSIZE * 3 + 4];
char BIGSTK safe_fil[HTS_URLMAXSIZE * 3 + 4];
tempo[0] = '\0';
time_gmt_rfc822(gmttime);
strcatbuff(tempo, eol);
hts_template_format_str(tempo + strlen(tempo), sizeof(tempo) - strlen(tempo),
StringBuff(opt->footer),
html_inline_safe(jump_identification_const(urladr()), safe_adr, sizeof(safe_adr)),
html_inline_safe(urlfil(), safe_fil, sizeof(safe_fil)), gmttime,
HTTRACK_VERSIONID, /* EOF */ NULL);
strcatbuff(tempo, eol);
HT_ADD(tempo);
}
// Emit charset ?
if (emited_footer == 1 && strnotempty(r->charset)) {
HT_ADD
("<!-- Added by HTTrack --><meta http-equiv=\"content-type\" content=\"text/html;charset=");
HT_ADD(r->charset);
HT_ADD("\" /><!-- /Added by HTTrack -->");
HT_ADD(eol);
}
}
}
}
// éliminer les <!-- (commentaires) : intag dévalidé
if (*(html + 1) == '!')
if (*(html + 2) == '-')
if (*(html + 3) == '-') {
intag = 0;
incomment = 1;
intag_start_valid = 0;
}
} else if ((*html == '>') /* ending tag */
&&((!inscript && !in_media) || (inscript_tag)) /* and in tag (or in script) */
) {
if (inscript_tag) {
inscript_tag = inscript = 0;
// reset the automaton on exit or its state leaks into plain HTML
inscript_state_pos = INSCRIPT_START;
intag = 0;
incomment = 0;
intag_start_valid = 0;
intag_name = NULL;
if (opt->parsedebug) {
HT_ADD("<@@ /inscript @@>");
}
} else if (!incomment) {
intag = 0; //inquote=0;
// entrée dans du javascript?
// on parse ICI car il se peut qu'on ait eu a parser les src=..
// dedans
if ((intag_start_valid) && (check_tag(intag_start, "script")
|| check_tag(intag_start, "style")
)
) {
const char *a = intag_start; // <
// ** while(is_realspace(*(--a)));
if (*a == '<') { // sûr que c'est un tag?
if (check_tag(intag_start, "script"))
inscript_name = "script";
else
inscript_name = "style";
inscript = 1;
inscript_state_pos = INSCRIPT_START;
intag = 1; // because après <script> on y est .. - pas utile
intag_start_valid = 0; // OUI car nous sommes dans du code, plus dans du "vrai" tag
if (opt->parsedebug) {
HT_ADD("<@@ inscript @@>");
}
}
}
} else { /* end of comment? */
// vérifier fermeture correcte
if ((*(html - 1) == '-') && (*(html - 2) == '-')) {
intag = 0;
incomment = 0;
intag_start_valid = 0;
intag_name = NULL;
}
#if GT_ENDS_COMMENT
/* wrong comment ending */
else {
/* check if correct ending does not exists
<!-- foo > example <!-- bar > is sometimes accepted by browsers
when no --> is used somewhere else.. darn those browsers are dirty
*/
if (!strstr(html, "-->")) {
intag = 0;
incomment = 0;
intag_start_valid = 0;
intag_name = NULL;
}
}
#endif
}
} else if (intag || inscript ||
in_media) { // nous sommes dans un tag/commentaire, tester si
// on recoit un tag
int p_type = 0;
int p_nocatch = 0;
int p_searchMETAURL = 0; // chercher ..URL=<url>
int add_class = 0; // ajouter .class
int add_class_dots_to_patch = 0; // number of '.' in code="x.y.z<realname>"
const char *p_flush = NULL;
// ------------------------------------------------------------
// parsing évolé
// ------------------------------------------------------------
if (((isalpha((unsigned char) *html)) || (*html == '/') || (inscript) || (in_media) || (inscriptgen))) { // sinon pas la peine de tester..
/* caractère de terminaison pour "miniparsing" javascript=.. ?
(ex: <a href="javascript:()" action="foo"> ) */
if (inscript_tag) {
if (inscript_tag_lastc) {
if (*html == inscript_tag_lastc) {
/* sortir */
inscript_tag = inscript = 0;
inscript_state_pos = INSCRIPT_START;
incomment = 0;
if (opt->parsedebug) {
HT_ADD("<@@ /inscript @@>");
}
}
}
}
/* automate */
hts_automate_lookup(&saut);
// Note:
// Certaines pages ne respectent pas le html
// notamment les guillements ne sont pas fixés
// Nous sommes dans un tag, donc on peut faire un test plus
// large pour pouvoi prendre en compte ces particularités
// à vérifier: ACTION, CODEBASE, VRML
if (in_media) {
if (strcmp(in_media, "LNK") == 0) { // real media
p = 0;
valid_p = 1;
} else if (strcmp(in_media, "AAM") == 0) { // AAM
if (is_space((unsigned char) html[0])
&& !is_space((unsigned char) html[1])) {
const char *a = html + 1;
int n = 0;
int ok = 0;
int dot = 0;
while(n < HTS_URLMAXSIZE / 2 && a[n] != '\0'
&& (!is_space((unsigned char) a[n]) || !(ok = 1))
) {
if (a[n] == '.') {
dot = n;
}
n++;
}
if (ok && dot > 0) {
char BIGSTK tmp[HTS_URLMAXSIZE / 2 + 2];
tmp[0] = '\0';
strncat(tmp, a + dot + 1, n - dot - 1);
if (is_knowntype(opt, tmp) || ishtml_ext(tmp) != -1) {
html++;
p = 0;
valid_p = 1;
unquoted_script = 1;
}
}
}
}
} else if (ptr > 0) { /* pas première page 0 (primary) */
p = 0; // saut pour le nom de fichier: adresse nom fichier=adr+p
// ------------------------------
// détection d'écriture JavaScript.
// osons les obj.write et les obj.href=.. ! osons!
// note: inscript==1 donc on sautera après les \"
if (inscript) {
if (inscriptgen) { // on est déja dans un objet générant..
if (*html == scriptgen_q) { // fermeture des " ou '
if (*(html - 1) != '\\') { // non
inscriptgen = 0; // ok parsing terminé
}
}
} else {
const char *a = NULL;
char check_this_fking_line = 0; // parsing code javascript..
char must_be_terminated = 0; // caractère obligatoire de terminaison!
int token_size;
if (!(token_size = strfield(html, ".writeln"))) // détection ...objet.write[ln]("code html")...
token_size = strfield(html, ".write");
if (token_size) {
a = html + token_size;
while(is_realspace(*a))
a++; // sauter espaces
if (*a == '(') { // début parenthèse
check_this_fking_line = 2; // à parser!
must_be_terminated = ')';
a++; // sauter (
}
}
// euhh ??? ???
/* else if (strfield(adr,".href")) { // détection ...objet.href="...
a=adr+5;
while(is_realspace(*a)) a++; // sauter espaces
if (*a=='=') { // ohh un égal
check_this_fking_line=1; // à noter!
must_be_terminated=';'; // et si t'as oublié le ; tu sais pas coder
a++; // sauter =
}
} */
// on a un truc du genre instruction"code généré" dont on parse le code
if (check_this_fking_line) {
while(is_realspace(*a))
a++;
if ((*a == '\'') || (*a == '"')) { // départ de '' ou ""
const char *b;
scriptgen_q = *a; // quote
b = a + 1; // départ de la chaîne
// vérifier forme ("code") et pas ("code"+var), ingérable
do {
if (*a == scriptgen_q && *(a - 1) != '\\') // quote non slash
break; // sortie
else if (*a == 10 && *(a - 1) != '\\' /* LF and no continue (\) character */
&& (*(a - 1) != '\r' || *(a - 2) != '\\')) /* and not CRLF and no .. */
break;
else
a++; // caractère suivant
} while((a - b) < HTS_URLMAXSIZE / 2);
if (*a == scriptgen_q) { // fin du quote
a++;
while(is_realspace(*a))
a++;
if (*a == must_be_terminated) { // parenthèse fermante: ("..")
// bon, on doit parser une ligne javascript
// 1) si check.. ==1 alors c'est un nom de fichier direct, donc
// on fixe p sur le saut nécessaire pour atteindre le nom du fichier
// et le moteur se débrouillera ensuite tout seul comme un grand
// 2) si check==2 c'est un peu plus tordu car là on génére du
// code html au sein de code javascript au sein de code html
// dans ce cas on doit fixer un flag à un puis ensuite dans la boucle
// on devra parser les instructions standard comme <a href etc
// NOTE: le code javascript autogénéré n'est pas pris en compte!!
// (et ne marche pas dans 50% des cas de toute facon!)
if (check_this_fking_line == 1) {
p = (int) (b - html); // calculer saut!
} else {
inscriptgen = 1; // SCRIPTGEN actif
html = b; // jump
}
if ((opt->debug > 1) && (opt->log != NULL)) {
char str[512];
str[0] = '\0';
strncatbuff(str, b, minimum((int) (a - b + 1), 32));
hts_log_print(opt, LOG_DEBUG,
"active code (%s) detected in javascript: %s",
(check_this_fking_line ==
2) ? "parse" : "pickup", str);
}
}
}
}
}
}
}
// fin detection code générant javascript vers html
// ------------------------------
// analyse proprement dite, A HREF=.. etc..
if (!p) {
// si dans un tag, et pas dans un script - sauf si on analyse un obj.write("..
if ((intag && (!inscript)) || inscriptgen) {
if ((*(html - 1) == '<') || (is_space(*(html - 1)))) { // <tag < tag etc
// <A HREF=.. pour les liens HTML
p = rech_tageq(html, "href");
if (p) { // href.. tester si c'est une bas href!
if ((intag_start_valid) && check_tag(intag_start, "base")) { // oui!
// ** note: base href et codebase ne font pas bon ménage..
p_type = 2; // c'est un chemin
}
}
/* Tags supplémentaires à vérifier (<img src=..> etc) */
if (p == 0) {
int i = 0;
while((p == 0) && (strnotempty(hts_detect[i]))) {
p = rech_tageq(html, hts_detect[i]);
if (p) {
/* This is a temporary hack to avoid archive=foo.jar,bar.jar .. */
if (strcmp(hts_detect[i], "archive") == 0) {
archivetag_p = 1;
}
/* srcset: a comma-list of candidate URLs, each split
out and rewritten below (#235, #236) */
else if (strcmp(hts_detect[i], "srcset") == 0
|| strcmp(hts_detect[i], "data-srcset") == 0) {
srcset_p = 1;
}
}
i++;
}
}
/* Tags supplémentaires en début à vérifier (<object .. hotspot1=..> etc) */
if (p == 0) {
int i = 0;
while((p == 0) && (strnotempty(hts_detectbeg[i]))) {
p = rech_tageqbegdigits(html, hts_detectbeg[i]);
i++;
}
}
/* Tags supplémentaires à vérifier : URL=.. */
if (p == 0) {
int i = 0;
while((p == 0) && (strnotempty(hts_detectURL[i]))) {
p = rech_tageq(html, hts_detectURL[i]);
i++;
}
if (p) {
if (intag_ctype == 1) {
p = 0;
}
// <META HTTP-EQUIV="Refresh" CONTENT="3;URL=http://www.example.com">
else if (intag_ctype == 2) {
p_searchMETAURL = 1;
} else {
p = 0; /* cancel */
}
}
}
/* Tags supplémentaires à vérifier, mais à ne pas capturer */
if (p == 0) {
int i = 0;
while((p == 0) && (strnotempty(hts_detectandleave[i]))) {
p = rech_tageq(html, hts_detectandleave[i]);
i++;
}
if (p)
p_nocatch = 1; /* ne pas rechercher */
}
/* Evénements */
if (p == 0 && !inscript /* we don't want events inside document.write */
) {
int i = 0;
/* détection onLoad etc */
while((p == 0) && (strnotempty(hts_detect_js[i]))) {
p = rech_tageq(html, hts_detect_js[i]);
i++;
}
/* non détecté - détecter également les onXxxxx= */
if (p == 0) {
if ((*html == 'o') && (*(html + 1) == 'n')
&& isUpperLetter(*(html + 2))) {
p = 0;
while(isalpha((unsigned char) html[p]) && (p < 64))
p++;
if (p < 64) {
while(is_space(html[p]))
p++;
if (html[p] == '=')
p++;
else
p = 0;
} else
p = 0;
}
}
/* OK, événement repéré */
if (p) {
inscript_tag_lastc = *(html + p); /* à attendre à la fin */
html += p /*+ 1*/; /* saut */
/*
On est désormais dans du code javascript
*/
inscript_name = "";
inscript = inscript_tag = 1;
inscript_state_pos = INSCRIPT_START;
if (opt->parsedebug) {
HT_ADD("<@@ inscript @@>");
}
}
p = 0; /* quoi qu'il arrive, ne rien démarrer ici */
}
// <APPLET CODE=.. pour les applet java.. [CODEBASE (chemin..) à faire]
if (p == 0) {
p = rech_tageq(html, "code");
if (p) {
if ((intag_start_valid) && check_tag(intag_start, "applet")) { // dans un <applet !
p_type = -1; // juste le nom de fichier+dossier, écire avant codebase
add_class = 1; // ajouter .class au besoin
// vérifier qu'il n'y a pas de codebase APRES
// sinon on swappe les deux.
// pas très propre mais c'est ce qu'il y a de plus simple à faire!!
{
const char *a;
a = html;
while((*a) && (*a != '>')
&& (!rech_tageq(a, "codebase")))
a++;
if (rech_tageq(a, "codebase")) { // banzai! codebase=
char *b;
b = strchr(a, '>');
if (b != NULL) {
if (b - html < 1000) { // au total < 1Ko
char BIGSTK tempo[HTS_URLMAXSIZE * 2];
const size_t offset = html - r->adr;
char *const modify = &r->adr[offset];
assertf(modify == html);
tempo[0] = '\0';
strncatbuff(tempo, a, b - a);
strcatbuff(tempo, " ");
strncatbuff(tempo, html, a - html - 1);
// éventuellement remplire par des espaces pour avoir juste la taille
while(strlen(tempo) < (size_t) (b - html))
strcatbuff(tempo, " ");
// pas d'erreur?
if (strlen(tempo) == b - html) {
strncpy(modify, tempo, strlen(tempo)); // PAS d'octet nul à la fin!
p = 0; // DEVALIDER!!
p_type = 0;
add_class = 0;
}
}
}
}
}
}
}
}
// liens à patcher mais pas à charger (ex: codebase)
if (p == 0) { // note: si non chargé (ex: ignorer .class) patché tout de même
p = rech_tageq(html, "codebase");
if (p) {
if ((intag_start_valid) && check_tag(intag_start, "applet")) { // dans un <applet !
p_type = -2;
} else
p = -1; // ne plus chercher
}
}
// Meta tags pour robots
if (p == 0) {
if (opt->robots) {
if ((intag_start_valid)
&& check_tag(intag_start, "meta")) {
if (rech_tageq(html, "name")) { // name=robots.txt
char tempo[1100];
char *a;
tempo[0] = '\0';
a = strchr(html, '>');
#if DEBUG_ROBOTS
printf("robots.txt meta tag detected\n");
#endif
if (a) {
if (a - html < 999) {
strncatbuff(tempo, html, a - html);
if (strstrcase(tempo, "content")) {
if (strstrcase(tempo, "robots")) {
if (strstrcase(tempo, "nofollow")) {
#if DEBUG_ROBOTS
printf
("robots.txt meta tag: nofollow in %s%s\n",
urladr(), urlfil());
#endif
nofollow = 1; // NE PLUS suivre liens dans cette page
hts_log_print(opt, LOG_WARNING,
"Link %s%s not scanned (follow robots meta tag)",
urladr(), urlfil());
}
}
}
}
}
}
}
}
}
// entrée dans une applet javascript
/*if (!inscript) { // sinon on est dans un obj.write("..
if (p==0)
if (rech_sampletag(html,"script"))
if (check_tag(intag_start,"script")) {
inscript=1;
}
} */
// Ici on procède à une analyse du code javascript pour tenter de récupérer
// certains fichiers évidents.
// C'est devenu obligatoire vu le nombre de pages qui intègrent
// des images réactives par exemple
}
} else if (inscript) {
/* Parse */
assertf(inscript_name != NULL);
if (*html == '/'
&&
((strfield(html, "/script")
&& strfield(inscript_name, "script"))
|| (strfield(html, "/style")
&& strfield(inscript_name, "style"))
)
&& inscript_locked == 0) {
const char *a = html;
while(is_realspace(*a))
a--;
a--;
if (*a == '<') { // sûr que c'est un tag?
inscript = 0;
inscript_state_pos = INSCRIPT_START;
if (opt->parsedebug) {
HT_ADD("<@@ /inscript @@>");
}
}
} else if (inscript_state_pos == INSCRIPT_START) {
/*
Script Analyzing - different types supported:
foo="url"
foo("url") or foo(url)
foo "url"
*/
char expected = '='; // caractère attendu après
const char *expected_end = ";";
int can_avoid_quotes = 0;
char quotes_replacement = '\0';
int ensure_not_mime = 0;
// .open(method,url): reject an HTTP-method first arg (#218)
int ensure_not_method = 0;
// @import: the quoted token is the URL; a trailing
// media/supports/layer condition is not part of it
int is_import = 0;
if (inscript_tag)
expected_end = ";\"\'"; // voir a href="javascript:doc.location='foo'"
/* Can we parse javascript ? */
if ((opt->parsejava & HTSPARSE_NO_JAVASCRIPT) == 0) {
int nc;
nc = strfield(html, ".src"); // nom.src="image";
if (!nc && inscript_tag && inscript_tag_lastc == *(html - 1))
nc = strfield(html, "src"); // onXXX='src="image";'
if (!nc)
nc = strfield(html, ".location"); // document.location="doc"
if (!nc)
nc = strfield(html, ":location"); // javascript:location="doc"
if (!nc) { // location="doc"
if ((nc = strfield(html, "location")) &&
!isspace(html_prevc(html, r->adr)))
nc = 0;
}
if (!nc)
nc = strfield(html, ".href"); // document.location="doc"
if (!nc)
if ((nc = strfield(html, ".open"))) { // window.open("doc",..
expected = '('; // parenthèse
expected_end = "),"; // fin: virgule ou parenthèse
ensure_not_mime = 1; //* ensure the url is not a mime type */
ensure_not_method = 1; // xhr.open: don't grab method
}
if (!nc)
if ((nc = strfield(html, ".replace"))) { // window.replace("url")
expected = '('; // parenthèse
expected_end = ")"; // fin: parenthèse
}
if (!nc)
if ((nc = strfield(html, ".link"))) { // window.link("url")
expected = '('; // parenthèse
expected_end = ")"; // fin: parenthèse
}
if (!nc && (nc = strfield(html, "url")) &&
(!isalnum(html_prevc(html, r->adr))) &&
html_prevc(html, r->adr) != '_') { // url(url)
expected = '('; // parenthèse
expected_end = ")"; // fin: parenthèse
can_avoid_quotes = 1;
quotes_replacement = ')';
}
if (!nc)
if ((nc = strfield(html, "import"))) { // import "url"
if (is_space(*(html + nc))) {
expected = 0; // no char expected
is_import = 1;
} else
nc = 0;
}
if (nc) {
const char *a;
a = html + nc;
while(is_realspace(*a))
a++;
if ((*a == expected) || (!expected)) {
if (expected)
a++;
while(is_realspace(*a))
a++;
if ((*a == 34) || (*a == '\'') || (can_avoid_quotes)) {
const char *b, *c;
int ndelim = 1;
int valid_url = 0;
if ((*a == 34) || (*a == '\''))
a++;
else
ndelim = 0;
b = a;
if (ndelim) {
while((*b != 34) && (*b != '\'') && (*b != '\0'))
b++;
} else {
while((*b != quotes_replacement) && (*b != '\0'))
b++;
}
c = b--;
// no closing delimiter here (truncated input):
// Don't scan past the buffer NUL or capture it.
if (*c != '\0') {
c += ndelim;
while (*c == ' ')
c++;
valid_url =
(strchr(expected_end, *c)) || (*c == '\n') ||
(*c == '\r') ||
(is_import && *(b + 1 + ndelim) == ' ');
}
if (valid_url) {
// URL end = last char (b), not the delimiter
c = b;
if ((int) (c - a + 1)) {
if (ensure_not_mime) {
int i = 0;
while(a != NULL && hts_main_mime[i] != NULL
&& hts_main_mime[i][0] != '\0') {
int p;
if ((p = strfield(a, hts_main_mime[i]))
&& a[p] == '/') {
a = NULL;
}
i++;
}
}
// XHR.open's "GET" etc. is a method, not a URL
if (a != NULL && ensure_not_method &&
is_http_method(a, (size_t) (c - a + 1))) {
a = NULL;
}
// Check for bogus links (Vasiliy)
if (a != NULL) {
const size_t size = c - a + 1;
int i;
int first = 1;
for(i = 0; i < size; i++) {
// Suspicious (in code ?), abort.
if (a[i] == ',' || a[i] == ';') {
if (first) {
a = NULL;
break;
}
}
// Suspicious, abort.
else if (a[i] == '"' || a[i] == '\''
|| a[i] == '\t' || a[i] == '\r'
|| a[i] == '\n') {
a = NULL;
break;
} else if (a[i] != ' ') {
first = 0;
}
}
}
if (a != NULL) {
if ((opt->debug > 1) && (opt->log != NULL)) {
char str[512];
str[0] = '\0';
strncatbuff(str, a,
minimum((int) (c - a + 1), 32));
hts_log_print(opt, LOG_DEBUG,
"link detected in javascript: %s",
str);
}
p = (int) (a - html); // p non nul: TRAITER CHAINE COMME FICHIER
if (can_avoid_quotes) {
ending_p = quotes_replacement;
}
}
}
}
}
}
}
}
/* HTSPARSE_NO_JAVASCRIPT */
}
}
}
} else { // ptr == 0
p = 0; // No stupid tag anymore, raw link
valid_p = 1; // Valid even if p==0
while((html[p] == '\r') || (html[p] == '\n'))
p++;
ending_p = '\r';
}
} else if (isspace((unsigned char) *html)) {
intag_startattr = html + 1; // attribute in tag (for dirty parsing)
}
// ------------------------------------------------------------
// dernier recours - parsing "sale" : détection systématique des .gif, etc.
// risque: générer de faux fichiers parazites
// fix: ne parse plus dans les commentaires
// ------------------------------------------------------------
if (opt->parseall && (opt->parsejava & HTSPARSE_NO_AGGRESSIVE) == 0 &&
(ptr > 0) && (!in_media)) { // option parsing "brut"
if (!is_realspace(*html)) {
int noparse = 0;
/* ensure automate state 0 (not in comments, quotes..) */
if (inscript
&& (inscript_state_pos != INSCRIPT_INQUOTE
&& inscript_state_pos != INSCRIPT_INQUOTE2)) {
noparse = 1;
}
/* vérifier que l'on est pas dans un <!-- --> pur */
if ((!intag) && (incomment) && (!inscript))
noparse = 1; /* commentaire */
// recherche d'URLs
if (!noparse) {
if (!p) { // non déja trouvé
if (html != r->adr) { // >1 caractère
// scanner les chaines
if ((*html == '\"') || (*html == '\'')) { // "xx.gif" 'xx.gif'
if (strchr("=(,", parseall_lastc)) { // exemple: a="img.gif.. (handles comments)
const char *a = html;
char stop = *html; // " ou '
int count = 0;
// sauter caractères
a++;
// copier
while((*a) && (*a != '\'') && (*a != '\"')
&& (count < HTS_URLMAXSIZE)) {
count++;
a++;
}
// ok chaine terminée par " ou '
if ((*a == stop) && (count < HTS_URLMAXSIZE)
&& (count > 0)) {
char c;
a++;
while(is_taborspace(*a))
a++;
c = *a;
// in-tag, an attribute value ends at its quote: no
// delimiter required after it (mid-tag attrs, #201)
if (strchr("),;>/+\r\n", c) ||
(intag && !inscript && intag_start_valid &&
dirty_attr_detectable(html, intag_start))) {
// '/' covers a value followed by a JS comment
char BIGSTK tempo[HTS_URLMAXSIZE * 2];
char type[256];
int url_ok = 0; // url valide?
tempo[0] = '\0';
type[0] = '\0';
//
strncatbuff(tempo, html + 1, count);
//
if ((!strchr(tempo, ' ')) || inscript) { // espace dedans: méfiance! (sauf dans code javascript)
int invalid_url = 0;
// escape
unescape_amp(tempo);
// Couper au # ou ? éventuel
{
char *a = strchr(tempo, '#');
if (a)
*a = '\0';
a = strchr(tempo, '?');
if (a)
*a = '\0';
}
// vérifier qu'il n'y a pas de caractères spéciaux
if (!strnotempty(tempo))
invalid_url = 1;
else if (strchr(tempo, '*')
|| strchr(tempo, '<')
|| strchr(tempo, '>')
|| strchr(tempo, ',') /* list of files ? */
||strchr(tempo, '\"') /* potential parsing bug */
||strchr(tempo, '\'') /* potential parsing bug */
)
invalid_url = 1;
else if (tempo[0] == '.' && isalnum(tempo[1])) // ".gif"
invalid_url = 1;
/* non invalide? */
if (!invalid_url) {
// Un plus à la fin? Alors ne pas prendre sauf si extension ("/toto.html#"+tag)
if (c != '+') { // PAS de plus à la fin
// "Comparisons of scheme names MUST be
// case-insensitive" (RFC2616)
if ((strfield(tempo, "http:"))
|| (strfield(tempo, "ftp:"))
#if HTS_USEOPENSSL
|| (strfield(tempo, "https:")
)
#endif
) // ok pas de problème
url_ok = 1;
else if (tempo[strlen(tempo) - 1] == '/') { // un slash: ok..
if (inscript) // sinon si pas javascript, méfiance (répertoire style base?)
url_ok = 1;
}
}
// Prendre si extension reconnue
if (!url_ok) {
if (get_httptype_sized(opt, type,
sizeof(type), tempo,
0)) // recognized type
url_ok = 1;
else if (is_dyntype(get_ext(OPT_GET_BUFF(opt), OPT_GET_BUFF_SIZE(opt), tempo))) // reconnu php,cgi,asp..
url_ok = 1;
// MAIS pas les foobar@aol.com !!
if (strchr(tempo, '@'))
url_ok = 0;
}
//
// Ok, cela pourrait être une URL
if (url_ok) {
// Check if not fodbidden tag (id,name..)
if (intag_start_valid) {
if (intag_start)
if (intag_startattr)
if (intag)
if (!inscript)
if (!incomment) {
int i = 0, nop = 0;
while((nop == 0)
&&
(strnotempty
(hts_nodetect[i]))) {
nop =
rech_tageq(intag_startattr,
hts_nodetect[i]);
i++;
}
// Forbidden tag
if (nop) {
url_ok = 0;
hts_log_print(opt, LOG_DEBUG,
"dirty parsing: bad tag avoided: %s",
hts_nodetect[i -
1]);
}
// xmlns / xmlns:prefix declare
// XML namespaces, not resources
// (#191)
else {
const int xl = strfield(
intag_startattr, "xmlns");
const char xc =
intag_startattr[xl];
if (xl &&
(xc == ':' || xc == '=' ||
is_space(xc))) {
url_ok = 0;
hts_log_print(
opt, LOG_DEBUG,
"dirty parsing: xmlns "
"namespace avoided");
}
}
}
}
// Accepter URL, on la traitera comme une URL normale!!
if (url_ok) {
valid_p = 1;
p = 0;
}
}
}
}
}
}
}
}
}
} // p == 0
} // not in comment
// plus dans un commentaire
if (inscript_state_pos == INSCRIPT_START
&& inscript_state_pos_prev == INSCRIPT_START) {
parseall_lastc = *html; // caractère avant le prochain
}
} // if realspace
} // if parseall
// ------------------------------------------------------------
// p!=0 : on a repéré un éventuel lien
// ------------------------------------------------------------
//
if ((p > 0) || (valid_p)) { // on a repéré un lien
const char *eadr = NULL; /* fin de l'URL */
int ok = 1;
char quote = '\0';
int quoteinscript = 0;
int noquote = 0;
const char *tag_attr_start = html;
// si nofollow ou un stop a été déclenché, réécrire tous les liens en externe
if ((nofollow)
|| (opt->state.stop
&& /* force follow not to lose previous cache data */
!opt->is_update)
)
p_nocatch = 1;
// écrire codebase avant, flusher avant code
if ((p_type == -1) || (p_type == -2)) {
if ((opt->getmode & HTS_GETMODE_HTML) && (ptr > 0)) {
HT_add_adr; // refresh
}
lastsaved = html; // dernier écrit+1
}
// sauter espaces
hts_automate_increment(&saut, p);
while((is_space(*html)
|| (inscriptgen && html[0] == '\\' && is_space(html[1])
)
)
&& quote == '\0') {
if (!quote)
if ((*html == '\"') || (*html == '\'')) {
quote = *html; // on doit attendre cela à la fin
if (inscriptgen && *(html - 1) == '\\') {
quoteinscript = 1; /* will wait for \" */
}
}
// puis quitter
// html++; // sauter les espaces, "" et cie
hts_automate_increment(&saut, 1);
}
/* Stop at \n (LF) if primary links or link lists */
if (ptr == 0 || (in_media && strcmp(in_media, "LNK") == 0))
quote = '\n';
/* s'arrêter que ce soit un ' ou un " : pour document.write('<img src="foo'+a); par exemple! */
else if (inscript && !unquoted_script)
noquote = 1;
// sauter éventuel \" ou \' javascript
if (inscript) { // on est dans un obj.write("..
if (*html == '\\') {
if ((*(html + 1) == '\'') || (*(html + 1) == '"')) { // \" ou \'
hts_automate_increment(&saut, 2);
}
}
}
// sauter content="1;URL=http://..
if (p_searchMETAURL) {
int l = 0;
while((html + l + 4 < r->adr + r->size)
&& (!strfield(html + l, "URL="))
&& (l < 128))
l++;
if (!strfield(html + l, "URL="))
ok = -1;
else
html += (l + 4);
}
/* éviter les javascript:document.location=.. : les parser, plutôt */
if (ok != -1) {
if (strfield(html, "javascript:")
&& !inscript /* we don't want to parse 'javascript:' inside document.write inside scripts */
) {
ok = -1;
/*
On est désormais dans du code javascript
*/
inscript_name = "";
inscript_tag = inscript = 1;
inscript_state_pos = INSCRIPT_START;
inscript_tag_lastc = quote; /* à attendre à la fin */
if (opt->parsedebug) {
HT_ADD("<@@ inscript @@>");
}
}
}
if (p_type == 1) {
if (*html == '#') {
html++; // sauter # pour usemap etc
}
}
srcset_next:
/* srcset: skip leading whitespace/commas before each candidate;
the skipped bytes flush verbatim below */
if (srcset_p) {
while(html < r->adr + r->size
&& (is_realspace(*html) || *html == ','))
hts_automate_increment(&saut, 1);
}
eadr = html;
// ne pas flusher après code si on doit écrire le codebase avant!
if ((p_type != -1) && (p_type != 2) && (p_type != -2)) {
if ((opt->getmode & HTS_GETMODE_HTML) && (ptr > 0)) {
HT_add_adr; // refresh
}
lastsaved = html; // dernier écrit+1
// après on écrira soit les données initiales,
// soir une URL/lien modifié!
} else if (p_type == -1)
p_flush = html; // flusher jusqu'à adr ensuite
if (ok != -1) { // continuer
// découper le lien
do {
if ((unsigned char) *eadr < 32) { // caractère de contrôle (ou \0)
if (!is_space(*eadr))
ok = 0;
}
if (eadr - html > HTS_URLMAXSIZE) // ** trop long, >HTS_URLMAXSIZE caractères (on prévoit HTS_URLMAXSIZE autres pour path)
ok = -1; // ne pas traiter ce lien
if (ok > 0) {
if (is_space(*eadr)) { // guillemets,CR, etc
if ((*eadr == quote && (!quoteinscript || *(eadr - 1) == '\\')) // end quote
|| (noquote && (*eadr == '\"' || *eadr == '\'')) // end at any quote
|| (!noquote && quote == '\0' && is_realspace(*eadr)) // unquoted href
|| srcset_p // whitespace ends a srcset candidate URL
) // si pas d'attente de quote spéciale ou si quote atteinte
ok = 0;
} else if (ending_p && (*eadr == ending_p))
ok = 0;
else {
switch (*eadr) {
case '>':
if (!quote) {
if (!inscript && !in_media) {
intag = 0; // PLUS dans un tag!
intag_start_valid = 0;
intag_name = NULL;
}
ok = 0;
}
break;
/*case '<': */
case '#':
if (*(eadr - 1) != '&') // &#40;
ok = 0;
break;
// case '?': non!
case '\\':
if (inscript)
ok = 0;
break; // \" ou \' point d'arrêt
case '?': /*quote_adr=adr; */
break; // noter position query
case ',':
if (srcset_p) {
/* split only on a trailing comma; one inside the URL
(data: URI, CDN path) is kept, per the WHATWG algo */
const char *const n = eadr + 1;
if (n >= r->adr + r->size || is_space(*n) || *n == ',')
ok = 0;
}
break;
}
}
}
eadr++;
} while(ok == 1);
// Empty link detected
if (eadr - html <= 1) { // link empty
ok = -1; // No
if (*html != '#') { // Not empty+unique #
if (eadr - html == 1) { // 1=link empty with delim (end_adr-start_adr)
if (quote) {
if ((opt->getmode & HTS_GETMODE_HTML) && (ptr > 0)) {
HT_ADD("#"); // We add this for a <href="">
}
}
}
}
}
// This is a dirty and horrible hack to avoid parsing an Adobe GoLive bogus tag
if (strfield(html, "(Empty Reference!)")) {
ok = -1; // No
}
}
if (ok == 0) { // tester un lien
char BIGSTK lien[HTS_URLMAXSIZE * 2];
int meme_adresse = 0; // 0 par défaut pour primary
// construire lien (découpage)
if (eadr - html - 1 < HTS_URLMAXSIZE) { // pas trop long?
strncpy(lien, html, eadr - html - 1);
lien[eadr - html - 1] = '\0';
// supprimer les espaces
while((lien[strlen(lien) - 1] == ' ') && (strnotempty(lien)))
lien[strlen(lien) - 1] = '\0';
} else
lien[0] = '\0'; // erreur
// ------------------------------------------------------
// Lien repéré et extrait
if (strnotempty(lien) > 0) { // construction du lien
lien_adrfilsave afs;
int forbidden_url = -1; // lien non interdit (mais non autorisé..)
int just_test_it = 0; // mode de test des liens
int set_prio_to = 0; // pour capture de page isolée
int import_done = 0; // lien importé (ne pas scanner ensuite *à priori*)
//
afs.af.adr[0] = '\0';
afs.af.fil[0] = '\0';
afs.save[0] = '\0';
//
// 0: autorisé
// 1: interdit (patcher tout de même adresse)
hts_log_print(opt, LOG_DEBUG, "link detected in html (tag): %s",
lien);
// external check
if (!RUN_CALLBACK1(opt, linkdetected, lien)
|| !RUN_CALLBACK2(opt, linkdetected2, lien, intag_start)) {
error = 1; // erreur
hts_log_print(opt, LOG_ERROR,
"Link %s refused by external wrapper", lien);
}
#if HTS_STRIP_DOUBLE_SLASH
// supprimer les // en / (sauf pour http://)
if (opt->urlhack) {
char *a, *p, *q;
int done = 0;
a = strchr(lien, ':'); // http://
if (a) {
a++;
while(*a == '/')
a++; // position après http://
} else {
a = lien; // début
while(*a == '/')
a++; // position après http://
}
q = strchr(a, '?'); // ne pas traiter après '?'
if (!q)
q = a + strlen(a) - 1;
while((p = strstr(a, "//")) && (!done)) { // remplacer // par /
if (p > q) { // après le ? (toto.cgi?param=1//2.3)
done = 1; // stopper
} else {
char BIGSTK tempo[HTS_URLMAXSIZE * 2];
tempo[0] = '\0';
strncatbuff(tempo, a, p - a);
strcatbuff(tempo, p + 1);
strcpybuff(a, tempo); // recopier
}
}
}
#endif
// purger espaces de début et fin, CR,LF résiduels
// (IMG SRC="foo.<\n><\t>gif<\t>")
{
char *a = lien;
size_t llen;
// strip ending spaces
llen = (*a != '\0') ? strlen(a) : 0;
while(llen > 0 && is_realspace(lien[llen - 1])) {
a[--llen] = '\0';
}
// skip leading ones
while(is_realspace(*a))
a++;
// strip cr, lf, tab inside URL
llen = 0;
while(*a) {
if (*a != '\n' && *a != '\r' && *a != '\t') {
lien[llen++] = *a;
}
a++;
}
lien[llen] = '\0';
}
// commas are forbidden
if (archivetag_p) {
if (strchr(lien, ',')) {
error = 1; // erreur
hts_log_print(opt, LOG_DEBUG,
"link rejected (multiple-archive) %s", lien);
}
}
/* Unescape/escape %20 and other &nbsp; */
{
// NULL when UTF-8 conversion is off (-%T0)
const char *const charset = str->page_charset_;
const int hasCharset = charset != NULL
&& *charset != '\0';
char BIGSTK query[HTS_URLMAXSIZE * 2];
// cut query string
{
char *const a = strchr(lien, '?');
if (a != NULL) {
strcpybuff(query, a);
*a = '\0';
} else {
query[0] = '\0';
}
}
// Unescape %XX, but not yet high-chars (supposedly encoded with UTF-8)
strcpybuff(lien,
unescape_http_unharm(catbuff, sizeof(catbuff), lien, 1 | 2)); /* note: '%' is still escaped */
// Force to encode non-printable chars (should never happend)
escape_remove_control(lien);
// charset conversion for the URI filename (not the query
// string), unless the bytes already are valid UTF-8:
// converting those would double-encode them (#180)
if (hasCharset && !hts_isCharsetUTF8(charset) &&
!hts_isStringUTF8(lien, strlen(lien))) {
char *const s = hts_convertStringToUTF8(lien, strlen(lien), charset);
if (s != NULL) {
hts_log_print(opt, LOG_DEBUG,
"engine: save-name: '%s' charset conversion from '%s' to '%s'",
charset, lien, s);
strcpybuff(lien, s);
free(s);
}
}
// decode URI entities with UTF-8 charset
if (hts_unescapeEntities(lien, lien, strlen(lien) + 1) != 0) {
hts_log_print(opt, LOG_WARNING,
"could not decode URI '%s' with charset '%s'", lien, charset);
}
// decode query string entities with page charset
if (hasCharset) {
if (hts_unescapeEntitiesWithCharset(query,
query, strlen(query) + 1,
charset) != 0) {
hts_log_print(opt, LOG_WARNING,
"could not decode query string '%s' with charset '%s'", query, charset);
}
}
// Decode remaining %XX high characters with UTF-8
// but only when this leads to valid UTF-8.
// Otherwise, leave them unescaped.
if (hts_unescapeUrlSpecial(lien, catbuff, sizeof(catbuff),
UNESCAPE_URL_NO_ASCII) == 0) {
strcpybuff(lien, catbuff);
} else {
hts_log_print(opt, LOG_WARNING,
"could not URL-decode string '%s'", lien);
}
// we need to encode query string non-ascii chars,
// leaving the encoding as-is (unlike the file part)
// and copy back query
append_escape_check_url(query, lien, sizeof(lien));
}
// convertir les éventuels \ en des / pour éviter des problèmes de reconnaissance!
{
char *a;
for(a = jump_identification(lien); *a != '\0' && *a != '?';
a++) {
if (*a == '\\') {
*a = '/';
}
}
}
// supprimer le(s) ./
while((lien[0] == '.') && (lien[1] == '/')) {
char BIGSTK tempo[HTS_URLMAXSIZE * 2];
strcpybuff(tempo, lien + /* ./ */ 2);
strcpybuff(lien, tempo);
}
if (strnotempty(lien) == 0) // sauf si plus de nom de fichier
strcpybuff(lien, "./");
// vérifie les /~machin -> /~machin/
// supposition dangereuse?
// OUI!!
#if HTS_TILDE_SLASH
if (lien[strlen(lien) - 1] != '/') {
char *a = lien + strlen(lien) - 1;
// éviter aussi index~1.html
while(a > lien && (*a != '~') && (*a != '/')
&& (*a != '.'))
a--;
if (*a == '~') {
strcatbuff(lien, "/"); // ajouter slash
}
}
#endif
// APPLET CODE="mixer.MixerApplet.class" --> APPLET CODE="mixer/MixerApplet.class"
// yes, this is dirty
// but I'm so lazzy..
// and besides the java "code" convention is really a pain in html code
if (p_type == -1) {
char *a = strrchr(lien, '.');
add_class_dots_to_patch = 0;
if (a) {
char *b;
do {
b = strchr(lien, '.');
if ((b != a) && (b)) {
add_class_dots_to_patch++;
*b = '/';
}
} while((b != a) && (b));
}
}
// éliminer les éventuels :80 (port par défaut!)
if (link_has_authority(lien)) {
char *a;
a = strstr(lien, "//"); // "//" authority
if (a)
a += 2;
else
a = lien;
a = jump_toport(a);
if (a) { // port
int port = 0;
int defport = 80;
char *b = a + 1;
#if HTS_USEOPENSSL
#endif
while(isdigit((unsigned char) *b)) {
port *= 10;
port += (int) (*b - '0');
b++;
}
if (port == defport) { // port 80, default - c'est débile
char BIGSTK tempo[HTS_URLMAXSIZE * 2];
tempo[0] = '\0';
strncatbuff(tempo, lien, a - lien);
strcatbuff(tempo, a + 3); // sauter :80
strcpybuff(lien, tempo);
}
}
}
// filtrer les parazites (mailto & cie)
/*
if (strfield(lien,"mailto:")) { // ne pas traiter
error=1;
} else if (strfield(lien,"news:")) { // ne pas traiter
error=1;
}
*/
// vérifier que l'on ne doit pas ajouter de .class
if (!error) {
if (add_class) {
char *a = lien + strlen(lien) - 1;
while((a > lien) && (*a != '/') && (*a != '.'))
a--;
if (*a != '.')
strcatbuff(lien, ".class"); // ajouter .class
else if (!strfield2(a, ".class"))
strcatbuff(lien, ".class"); // idem
}
}
// si c'est un chemin, alors vérifier (toto/toto.html -> http://www/toto/)
if (!error) {
hts_log_print(opt, LOG_DEBUG, "position link check %s", lien);
if ((p_type == 2) || (p_type == -2)) { // code ou codebase
// Vérifier les codebase=applet (au lieu de applet/)
if (p_type == -2) { // codebase
if (strnotempty(lien)) {
if (lien[strlen(lien) - 1] != '/') { // pas répertoire
strcatbuff(lien, "/");
}
}
}
/* base has always authority */
if (p_type == 2 && !link_has_authority(lien)) {
char BIGSTK tmp[HTS_URLMAXSIZE * 2];
strcpybuff(tmp, "http://");
strcatbuff(tmp, lien);
strcpybuff(lien, tmp);
}
/* only one ending / (bug on some pages) */
if (strlen(lien) > 2) {
size_t len = strlen(lien);
while(len > 1 && lien[len - 1] == '/' && lien[len - 2] == '/') /* double // (bug) */
lien[--len] = '\0';
}
// copier nom host si besoin est
if (!link_has_authority(lien)) { // pas de http://
lien_adrfil af2; // ** euh ident_url_relatif??
if (ident_url_relatif(lien, urladr(), urlfil(), &af2) < 0) {
error = 1;
} else {
strcpybuff(lien, "http://");
strcatbuff(lien, af2.adr);
if (*af2.fil != '/')
strcatbuff(lien, "/");
strcatbuff(lien, af2.fil);
{
char *a;
a = lien + strlen(lien) - 1;
while((*a) && (*a != '/') && (a > lien))
a--;
if (*a == '/') {
*(a + 1) = '\0';
}
}
}
}
if (!error) { // pas d'erreur?
if (p_type == 2) { // code ET PAS codebase
char *a = lien + strlen(lien) - 1;
char *start_of_filename = jump_identification(lien);
if (start_of_filename != NULL
&& (start_of_filename =
strchr(start_of_filename, '/')) != NULL)
start_of_filename++;
if (start_of_filename == NULL)
strcatbuff(lien, "/");
while((a > lien) && (*a) && (*a != '/'))
a--;
if (*a == '/') { // ok on a repéré le dernier /
if (start_of_filename != NULL
&& a + 1 >= start_of_filename) {
*(a + 1) = '\0'; // couper
}
} else {
*lien = '\0'; // éliminer
error = 1; // erreur, ne pas poursuivre
}
}
// stocker base ou codebase?
switch (p_type) {
case 2: {
strlcpybuff(base, lien, HTS_URLMAXSIZE * 2);
} break; // base
case -2: {
strlcpybuff(codebase, lien, HTS_URLMAXSIZE * 2);
} break; // base
}
hts_log_print(opt, LOG_DEBUG,
"code/codebase link %s base %s", lien,
base);
}
} else {
char *_base;
if (p_type == -1) // code (applet)
_base = codebase;
else
_base = base;
// ajouter chemin de base href..
if (strnotempty(_base)) { // considérer base
if (!link_has_authority(lien)) { // non absolue
if (*lien != '/') { // non absolu sur le site (/)
if ((strlen(_base) + strlen(lien)) < HTS_URLMAXSIZE) {
// mailto: and co: do NOT add base
if (ident_url_relatif
(lien, urladr(), urlfil(), &afs.af) >= 0) {
char BIGSTK tempo[HTS_URLMAXSIZE * 2];
// base est absolue
strcpybuff(tempo, _base);
strcatbuff(tempo,
lien + ((*lien == '/') ? 1 : 0));
strcpybuff(lien, tempo); // patcher en considérant base
// ** vérifier que ../ fonctionne (ne doit pas arriver mais bon..)
hts_log_print(opt, LOG_DEBUG,
"link modified with code/codebase %s",
lien);
}
} else {
error = 1; // erreur
hts_log_print(opt, LOG_ERROR,
"Link %s too long with base href",
lien);
}
} else {
lien_adrfil baseaf;
if (ident_url_absolute(_base, &baseaf) >= 0) {
if ((strlen(baseaf.adr) + strlen(lien)) < HTS_URLMAXSIZE) {
char BIGSTK tempo[HTS_URLMAXSIZE * 2];
// base est absolue
tempo[0] = '\0';
if (!link_has_authority(baseaf.adr)) {
strcatbuff(tempo, "http://");
}
strcatbuff(tempo, baseaf.adr);
strcatbuff(tempo, lien);
strcpybuff(lien, tempo); // patcher en considérant base
hts_log_print(opt, LOG_DEBUG,
"link modified with code/codebase %s",
lien);
} else {
error = 1; // erreur
hts_log_print(opt, LOG_ERROR,
"Link %s too long with base href",
lien);
}
}
}
}
}
}
}
// transformer lien quelconque (http, relatif, etc) en une adresse
// et un chemin+fichier (adr,fil)
if (!error) {
int reponse;
hts_log_print(opt, LOG_DEBUG,
"build relative link %s with %s%s", lien,
relativeurladr(), relativeurlfil());
if ((reponse =
ident_url_relatif(lien, relativeurladr(), relativeurlfil(),
&afs.af)) < 0) {
afs.af.adr[0] = '\0'; // erreur
if (reponse == -2) {
hts_log_print(opt, LOG_WARNING,
"Link %s not caught (unknown protocol)",
lien);
} else {
hts_log_print(opt, LOG_DEBUG,
"ident_url_relatif failed for %s with %s%s",
lien, relativeurladr(), relativeurlfil());
}
} else {
hts_log_print(opt, LOG_DEBUG,
"built relative link %s with %s%s -> %s%s",
lien, relativeurladr(), relativeurlfil(), afs.af.adr,
afs.af.fil);
}
} else {
hts_log_print(opt, LOG_DEBUG,
"link %s not build, error detected before",
lien);
afs.af.adr[0] = '\0';
}
// Le lien doit juste être réécrit, mais ne doit pas générer un lien
// exemple: <FORM ACTION="url_cgi">
if (p_nocatch) {
forbidden_url = 1; // interdire récupération du lien
hts_log_print(opt, LOG_DEBUG, "link forced external at %s%s",
afs.af.adr, afs.af.fil);
}
// Tester si un lien doit être accepté ou refusé (wizard)
// forbidden_url=1 : lien refusé
// forbidden_url=0 : lien accepté
if ((p_type != 2) && (p_type != -2)) { // tester autorisations?
if (!p_nocatch) {
if (afs.af.adr[0] != '\0') {
hts_log_print(opt, LOG_DEBUG,
"wizard link test at %s%s..", afs.af.adr, afs.af.fil);
forbidden_url =
hts_acceptlink(opt, ptr, afs.af.adr, afs.af.fil,
intag_name ? intag_name : NULL,
intag_name ? tag_attr_start : NULL,
&set_prio_to, &just_test_it);
hts_log_print(opt, LOG_DEBUG,
"result for wizard link test: %d",
forbidden_url);
}
}
}
// calculer meme_adresse
meme_adresse =
strfield2(jump_identification_const(afs.af.adr),
jump_identification_const(urladr()));
// Début partie sauvegarde
// ici on forme le nom du fichier à sauver, et on patche l'URL
if (afs.af.adr[0] != '\0') {
// savename(): simplifier les ../ et autres joyeusetés
int r_sv = 0;
// En cas de moved, adresse première
lien_adrfil former;
//
afs.save[0] = '\0';
former.adr[0] = '\0';
former.fil[0] = '\0';
//
// nom du chemin à sauver si on doit le calculer
// note: url_savename peut décider de tester le lien si il le trouve
// suspect, et modifier alors adr et fil
// dans ce cas on aura une référence directe au lieu des traditionnels
// moved en cascade (impossible à reproduire à priori en local, lorsque des fichiers
// gif sont impliqués par exemple)
if ((p_type != 2) && (p_type != -2)) { // pas base href ou codebase
if (forbidden_url != 1) {
char BIGSTK last_adr[HTS_URLMAXSIZE * 2];
/* Calc */
last_adr[0] = '\0';
strcpybuff(last_adr, afs.af.adr); // ancienne adresse
r_sv =
url_savename(&afs, &former, heap(ptr)->adr, heap(ptr)->fil, opt,
sback, cache, hash, ptr,
numero_passe, NULL);
if (strcmp(jump_identification_const(last_adr),
jump_identification_const(afs.af.adr)) != 0) { // a changé
// 2e test si moved
// Tester si un lien doit être accepté ou refusé (wizard)
// forbidden_url=1 : lien refusé
// forbidden_url=0 : lien accepté
if ((ptr > 0) && (p_type != 2) && (p_type != -2)) { // tester autorisations?
if (!p_nocatch) {
if (afs.af.adr[0] != '\0') {
hts_log_print(opt, LOG_DEBUG,
"wizard moved link retest at %s%s..",
afs.af.adr, afs.af.fil);
forbidden_url =
hts_acceptlink(opt, ptr, afs.af.adr, afs.af.fil,
intag_name ? intag_name : NULL,
intag_name ? tag_attr_start :
NULL, &set_prio_to,
&just_test_it);
hts_log_print(opt, LOG_DEBUG,
"result for wizard moved link retest: %d",
forbidden_url);
}
}
}
meme_adresse = 0; // on a changé
}
} else {
strcpybuff(afs.save, ""); // dummy
}
}
// resolve unresolved type
if (r_sv != -1 && p_type != 2 && p_type != -2
&& forbidden_url == 0 && IS_DELAYED_EXT(afs.save)
) {
time_t t;
// pas d'erreur, on continue
r_sv =
hts_wait_delayed(str, &afs, heap(ptr)->adr,
heap(ptr)->fil, &former,
&forbidden_url);
/* User interaction, because hts_wait_delayed can be slow.. (3.43) */
t = time(NULL);
if (user_interact_timestamp == 0
|| t - user_interact_timestamp > 0) {
user_interact_timestamp = t;
ENGINE_SAVE_CONTEXT();
{
hts_mirror_process_user_interaction(str, stre);
}
ENGINE_SET_CONTEXT();
}
}
// record!
if (r_sv != -1) { // pas d'erreur, on continue
/* log */
if ((opt->debug > 1) && (opt->log != NULL)) {
if (forbidden_url != 1) { // le lien va être chargé
if ((p_type == 2) || (p_type == -2)) { // base href ou codebase, pas un lien
hts_log_print(opt, LOG_DEBUG, "Code/Codebase: %s%s",
afs.af.adr, afs.af.fil);
} else if ((opt->getmode & HTS_GETMODE_HTML_FIRST) ==
0) {
hts_log_print(opt, LOG_DEBUG, "Record: %s%s -> %s",
afs.af.adr, afs.af.fil, afs.save);
} else {
if (!ishtml(opt, afs.af.fil))
hts_log_print(opt, LOG_DEBUG,
"Record after: %s%s -> %s", afs.af.adr, afs.af.fil,
afs.save);
else
hts_log_print(opt, LOG_DEBUG, "Record: %s%s -> %s",
afs.af.adr, afs.af.fil, afs.save);
}
} else
hts_log_print(opt, LOG_DEBUG, "External: %s%s", afs.af.adr,
afs.af.fil);
}
/* FIN log */
// écrire lien
if ((p_type == 2) || (p_type == -2)) { // base href ou codebase, sauter
lastsaved = eadr - 1 + 1; // sauter "
}
/* */
else if (opt->urlmode == HTS_URLMODE_ABSOLUTE) {
if ((opt->getmode & HTS_GETMODE_HTML) && (ptr > 0)) {
if (!link_has_authority(afs.af.adr)) {
HT_ADD("http://");
} else {
char *aut = strstr(afs.af.adr, "//");
if (aut) {
char tmp[256];
tmp[0] = '\0';
strncatbuff(tmp, afs.af.adr, aut - afs.af.adr); // scheme
HT_ADD(tmp); // Protocol
HT_ADD("//");
}
}
if (!opt->passprivacy) {
HT_ADD_HTMLESCAPED(jump_protocol_const(afs.af.adr)); // Password
} else {
HT_ADD_HTMLESCAPED(jump_identification_const(afs.af.adr)); // No Password
}
if (afs.af.fil[0] != '/')
HT_ADD("/");
HT_ADD_HTMLESCAPED(afs.af.fil);
}
lastsaved = eadr - 1; // dernier écrit+1 (enfin euh apres on fait un ++ alors hein)
/* */
} else if (opt->urlmode == HTS_URLMODE_KEEP_ORIGINAL) {
/* */
/* leave the link 'as is' */
/* Sinon, dépend de interne/externe */
} else if (forbidden_url ==
1) { // le lien ne sera pas chargé, référence
// externe!
if ((opt->getmode & HTS_GETMODE_HTML) && (ptr > 0)) {
if (p_type != -1) { // pas que le nom de fichier (pas classe java)
if (!opt->external) {
if (!link_has_authority(afs.af.adr)) {
HT_ADD("http://");
if (!opt->passprivacy) {
HT_ADD_HTMLESCAPED(afs.af.adr); // Password
} else {
HT_ADD_HTMLESCAPED(jump_identification_const(afs.af.adr)); // No Password
}
if (afs.af.fil[0] != '/')
HT_ADD("/");
HT_ADD_HTMLESCAPED(afs.af.fil);
} else {
char *aut = strstr(afs.af.adr, "//");
if (aut) {
char tmp[256];
tmp[0] = '\0';
strncatbuff(tmp, afs.af.adr, (aut - afs.af.adr)); // scheme
HT_ADD(tmp); // Protocol
HT_ADD("//");
if (!opt->passprivacy) {
HT_ADD_HTMLESCAPED(jump_protocol_const(afs.af.adr)); // Password
} else {
HT_ADD_HTMLESCAPED(jump_identification_const(afs.af.adr)); // No Password
}
if (afs.af.fil[0] != '/')
HT_ADD("/");
HT_ADD_HTMLESCAPED(afs.af.fil);
}
}
//
} else { // fichier/page externe, mais on veut générer une erreur
//
int patch_it = 0;
int add_url = 0;
const char *cat_name = NULL;
const char *cat_data = NULL;
int cat_nb = 0;
int cat_data_len = 0;
// ajouter lien external
switch ((link_has_authority(afs.af.adr)) ? 1
: ((afs.af.fil[strlen(afs.af.fil) - 1] ==
'/') ? 1 : (ishtml(opt, afs.af.fil)))) {
case 1:
case -2: // html ou répertoire
if (opt->getmode & HTS_GETMODE_HTML) {
patch_it = 1; // redirect
add_url = 1; // avec link?
cat_name = "external.html";
cat_nb = 0;
cat_data = HTS_DATA_UNKNOWN_HTML;
cat_data_len = HTS_DATA_UNKNOWN_HTML_LEN;
}
break;
default: // inconnu
// asp, cgi..
if ((strfield2
(afs.af.fil + max(0, strlen(afs.af.fil) - 4),
".gif"))
||
(strfield2
(afs.af.fil + max(0, strlen(afs.af.fil) - 4),
".jpg"))
||
(strfield2
(afs.af.fil + max(0, strlen(afs.af.fil) - 4),
".xbm"))
/*|| (ishtml(opt,fil)!=0) */
) {
patch_it = 1; // redirect
add_url = 1; // avec link aussi
cat_name = "external.gif";
cat_nb = 1;
cat_data = HTS_DATA_UNKNOWN_GIF;
cat_data_len = HTS_DATA_UNKNOWN_GIF_LEN;
} else { /* if (is_dyntype(get_ext(fil))) */
patch_it = 1; // redirect
add_url = 1; // avec link?
cat_name = "external.html";
cat_nb = 0;
cat_data = HTS_DATA_UNKNOWN_HTML;
cat_data_len = HTS_DATA_UNKNOWN_HTML_LEN;
}
break;
} // html,gif
if (patch_it) {
char BIGSTK save[HTS_URLMAXSIZE * 2];
char BIGSTK tempo[HTS_URLMAXSIZE * 2];
strcpybuff(save, StringBuff(opt->path_html_utf8));
strcatbuff(save, cat_name);
if (lienrelatif(tempo, sizeof(tempo), save,
relativesavename()) == 0) {
/* Never escape high-chars (we don't know the encoding!!) */
inplace_escape_uri_utf(
tempo, sizeof(tempo)); // escape with %xx
HT_ADD_HTMLESCAPED(tempo); // page externe
if (add_url) {
HT_ADD("?link="); // page externe
// same as above
if (!link_has_authority(afs.af.adr)) {
HT_ADD("http://");
if (!opt->passprivacy) {
HT_ADD_HTMLESCAPED(afs.af.adr); // Password
} else {
HT_ADD_HTMLESCAPED(jump_identification_const(afs.af.adr)); // No Password
}
if (afs.af.fil[0] != '/')
HT_ADD("/");
HT_ADD_HTMLESCAPED(afs.af.fil);
} else {
char *aut = strstr(afs.af.adr, "//");
if (aut) {
char tmp[256];
tmp[0] = '\0';
strncatbuff(tmp, afs.af.adr, (aut - afs.af.adr) + 2); // scheme
HT_ADD(tmp);
if (!opt->passprivacy) {
HT_ADD_HTMLESCAPED(jump_protocol_const(afs.af.adr)); // Password
} else {
HT_ADD_HTMLESCAPED(jump_identification_const(afs.af.adr)); // No Password
}
if (afs.af.fil[0] != '/')
HT_ADD("/");
HT_ADD_HTMLESCAPED(afs.af.fil);
}
}
//
}
}
// écrire fichier?
if (verif_external(opt, cat_nb, 1)) {
FILE *fp =
filecreate(&opt->state.strc,
fconcat(OPT_GET_BUFF(opt), OPT_GET_BUFF_SIZE(opt),
StringBuff(opt->
path_html_utf8),
cat_name));
if (fp) {
if (cat_data_len == 0) { // texte
verif_backblue(opt,
StringBuff(opt->
path_html_utf8));
fprintf(fp, "%s%s",
"<!-- Created by HTTrack Website Copier/"
HTTRACK_VERSION " "
HTTRACK_AFF_AUTHORS " -->" LF,
cat_data);
} else { // data
fwrite(cat_data, cat_data_len, 1, fp);
}
fclose(fp);
usercommand(opt, 0, NULL,
fconcat(OPT_GET_BUFF(opt), OPT_GET_BUFF_SIZE(opt),
StringBuff(opt->
path_html_utf8),
cat_name), "", "");
}
}
} else { // écrire normalement le nom de fichier
HT_ADD("http://");
if (!opt->passprivacy) {
HT_ADD_HTMLESCAPED(afs.af.adr); // Password
} else {
HT_ADD_HTMLESCAPED(jump_identification_const(afs.af.adr)); // No Password
}
if (afs.af.fil[0] != '/')
HT_ADD("/");
HT_ADD_HTMLESCAPED(afs.af.fil);
} // patcher?
} // external
} else { // que le nom de fichier (classe java)
// en gros recopie de plus bas: copier codebase et base
if (p_flush) {
char BIGSTK tempo[HTS_URLMAXSIZE * 2]; // <-- ajouté
char BIGSTK tempo_pat[HTS_URLMAXSIZE * 2];
// Calculer chemin
tempo_pat[0] = '\0';
strcpybuff(tempo, afs.af.fil); // <-- ajouté
{
char *a = strrchr(tempo, '/');
// Example: we converted code="x.y.z.foo.class" into "x/y/z/foo.class"
// we have to do the contrary now
if (add_class_dots_to_patch > 0) {
while((add_class_dots_to_patch > 0) && (a)) {
*a = '.'; // convert "false" java / into .
add_class_dots_to_patch--;
a = strrchr(tempo, '/');
}
// if add_class_dots_to_patch, this is because there is a problem!!
if (add_class_dots_to_patch) {
hts_log_print(opt, LOG_WARNING,
"Error: can not rewind java path %s, check html code",
tempo);
}
}
// Cut path/filename
if (a) {
char BIGSTK tempo2[HTS_URLMAXSIZE * 2];
strcpybuff(tempo2, a + 1); // FICHIER
strncatbuff(tempo_pat, tempo, (a - tempo) + 1); // chemin
strcpybuff(tempo, tempo2); // fichier
}
}
// érire codebase="chemin"
if ((opt->getmode & HTS_GETMODE_HTML) &&
(ptr > 0)) {
char BIGSTK tempo4[HTS_URLMAXSIZE * 2];
tempo4[0] = '\0';
if (strnotempty(tempo_pat)) {
HT_ADD("codebase=\"http://");
if (!opt->passprivacy) {
HT_ADD_HTMLESCAPED(afs.af.adr); // Password
} else {
HT_ADD_HTMLESCAPED(jump_identification_const(afs.af.adr)); // No Password
}
if (*tempo_pat != '/')
HT_ADD("/");
HT_ADD(tempo_pat);
HT_ADD("\" ");
}
strncatbuff(tempo4, lastsaved, p_flush - lastsaved);
HT_ADD(tempo4); // refresh code="
HT_ADD(tempo);
}
}
}
}
lastsaved = eadr - 1;
}
/*
else if (opt->urlmode==1) { // ABSOLU, c'est le cas le
moins courant
// NE FONCTIONNE PAS!! (et est inutile)
if ((opt->getmode & 1) && (ptr>0)) { // ecrire les
html
// écrire le lien modifié, absolu
HT_ADD("file:");
if (*save=='/')
HT_ADD(save+1)
else
HT_ADD(save)
}
lastsaved=eadr-1; // dernier écrit+1 (enfin euh apres
on fait un ++ alors hein)
}
*/
else if (opt->mimehtml) {
char BIGSTK cid[HTS_URLMAXSIZE * 3];
HT_ADD("cid:");
make_content_id(afs.af.adr, afs.af.fil, cid, sizeof(cid));
HT_ADD_HTMLESCAPED(cid);
lastsaved = eadr - 1; // dernier écrit+1 (enfin euh apres on fait un ++ alors hein)
} else if (opt->urlmode == HTS_URLMODE_ABSOLUTE_URI) {
if ((opt->getmode & HTS_GETMODE_HTML) && (ptr > 0)) {
HT_ADD_HTMLESCAPED(afs.af.fil);
}
lastsaved = eadr - 1; // dernier écrit+1 (enfin euh apres on fait un ++ alors hein)
} else if (opt->urlmode == HTS_URLMODE_TRANSPARENT_PROXY) {
char BIGSTK tempo[HTS_URLMAXSIZE * 2];
const char *uri;
int i;
char *pos;
if ((opt->getmode & HTS_GETMODE_HTML) && (ptr > 0)) {
if (!link_has_authority(afs.af.adr)) {
HT_ADD("http://");
} else {
char *aut = strstr(afs.af.adr, "//");
if (aut) {
char tmp[256];
tmp[0] = '\0';
strncatbuff(tmp, afs.af.adr, (aut - afs.af.adr)); // scheme
HT_ADD(tmp); // Protocol
HT_ADD("//");
}
}
// filename is taken as URI (ex: "C:\My Website\www.example.com\foo4242.html)
uri = afs.save;
// .. after stripping the path prefix (ex: "www.example.com\foo4242.html)
if (strnotempty(StringBuff(opt->path_html_utf8))) {
uri += StringLength(opt->path_html_utf8);
for(; uri[0] == '/' || uri[0] == '\\'; uri++) ;
}
// and replacing all \ by / (ex: "www.example.com/foo4242.html)
strcpybuff(tempo, uri);
for(i = 0; tempo[i] != '\0'; i++) {
if (tempo[i] == '\\') {
tempo[i] = '/';
}
}
// put original query string if any (ex: "www.example.com/foo4242.html?q=45)
pos = strchr(afs.af.fil, '?');
if (pos != NULL) {
strcatbuff(tempo, pos);
}
// write it
HT_ADD_HTMLESCAPED(tempo);
}
lastsaved = eadr - 1; // dernier écrit+1 (enfin euh apres on fait un ++ alors hein)
} else if (opt->urlmode == HTS_URLMODE_RELATIVE) {
char BIGSTK tempo[HTS_URLMAXSIZE * 2];
tempo[0] = '\0';
// calculer le lien relatif
if (lienrelatif(tempo, sizeof(tempo), afs.save,
relativesavename()) == 0) {
if (!in_media) { // In media (such as real audio): don't patch
/* Never escape high-chars (we don't know the encoding!!) */
inplace_escape_uri_utf(tempo, sizeof(tempo));
// unquoted url() (CSS/JS): keep parens escaped
if (ending_p == ')')
escape_url_parens(tempo, sizeof(tempo));
}
hts_log_print(opt, LOG_DEBUG,
"relative link at %s build with %s and %s: %s",
afs.af.adr, afs.save, relativesavename(), tempo);
// lien applet (code) - il faut placer un codebase avant
if (p_type == -1) { // que le nom de fichier
if (p_flush) {
char BIGSTK tempo_pat[HTS_URLMAXSIZE * 2];
tempo_pat[0] = '\0';
{
char *a = strrchr(tempo, '/');
// Example: we converted code="x.y.z.foo.class" into "x/y/z/foo.class"
// we have to do the contrary now
if (add_class_dots_to_patch > 0) {
while((add_class_dots_to_patch > 0) && (a)) {
*a = '.'; // convert "false" java / into .
add_class_dots_to_patch--;
a = strrchr(tempo, '/');
}
// if add_class_dots_to_patch, this is because there is a problem!!
if (add_class_dots_to_patch) {
hts_log_print(opt, LOG_WARNING,
"Error: can not rewind java path %s, check html code",
tempo);
}
}
if (a) {
char BIGSTK tempo2[HTS_URLMAXSIZE * 2];
strcpybuff(tempo2, a + 1);
strncatbuff(tempo_pat, tempo, a - tempo + 1); // chemin
strcpybuff(tempo, tempo2); // fichier
}
}
// érire codebase="chemin"
if ((opt->getmode & HTS_GETMODE_HTML) &&
(ptr > 0)) {
char BIGSTK tempo4[HTS_URLMAXSIZE * 2];
tempo4[0] = '\0';
if (strnotempty(tempo_pat)) {
HT_ADD("codebase=\"");
HT_ADD_HTMLESCAPED(tempo_pat);
HT_ADD("\" ");
}
strncatbuff(tempo4, lastsaved, p_flush - lastsaved);
HT_ADD(tempo4); // refresh code="
}
}
}
if ((opt->getmode & HTS_GETMODE_HTML) && (ptr > 0)) {
// écrire le lien modifié, relatif
// Note: escape all chars, even >127 (no UTF)
HT_ADD_HTMLESCAPED_FULL(tempo);
// Add query-string, for informational purpose only
// Useless, because all parameters-pages are saved into different targets
if (opt->includequery) {
char *a = strchr(lien, '?');
if (a) {
HT_ADD_HTMLESCAPED(a);
}
}
}
lastsaved = eadr - 1; // dernier écrit+1 (enfin euh apres on fait un ++ alors hein)
} else {
hts_log_print(opt, LOG_WARNING,
"Error building relative link %s and %s",
afs.save, relativesavename());
}
} // sinon le lien sera écrit normalement
/* Security check */
if (strlen(afs.save) >= HTS_URLMAXSIZE) {
afs.af.adr[0] = '\0';
hts_log_print(opt, LOG_WARNING, "Link is too long: %s",
afs.save);
}
if ((afs.af.adr[0] != '\0') && (p_type != 2) && (p_type != -2) && (forbidden_url != 1)) { // si le fichier n'existe pas, ajouter à la liste
// n'y a-t-il pas trop de liens?
if (opt->maxlink > 0 && opt->lien_tot + 1 >= opt->maxlink) { // trop de liens!
printf("PANIC! : Too many URLs : >%d [%d]\n", opt->lien_tot,
__LINE__);
hts_log_print(opt, LOG_PANIC, "Too many URLs, giving up..(>%d)",
opt->maxlink);
hts_log_print(opt, LOG_INFO,
"To avoid that: use #L option for more links (example: -#L1000000)");
if ((opt->getmode & HTS_GETMODE_HTML) && (ptr > 0)) {
if (fp) {
fclose(fp);
fp = NULL;
}
}
XH_uninit; // désallocation mémoire & buffers
return -1;
} else { // noter le lien sur la listes des liens à charger
int pass_fix, dejafait = 0;
// Calculer la priorité de ce lien
if ((opt->getmode & HTS_GETMODE_HTML_FIRST) == 0) {
pass_fix = 0;
} else { // vérifier que ce n'est pas un !html
if (!ishtml(opt, afs.af.fil))
pass_fix = 1; // priorité inférieure (traiter après)
else
pass_fix = max(0, numero_passe); // priorité normale
}
/* If the file seems to be an html file, get depth-1 */
/*
if (strnotempty(save)) {
if (ishtml(opt,save) == 1) {
} else {
}
}
*/
// vérifier que le lien n'a pas déja été noté
// si c'est le cas, alors il faut s'assurer que la priorité associée
// au fichier est la plus grande des deux priorités
//
// On part de la fin et on essaye de se presser (économise temps machine)
{
int i = hash_read(hash, afs.save, NULL, 0); // lecture type 0 (sav)
if (i >= 0) {
if ((opt->debug > 1) && (opt->log != NULL)) {
if (strcmp(afs.af.adr, heap(i)->adr) != 0
|| strcmp(afs.af.fil, heap(i)->fil) != 0) {
hts_log_print(opt, LOG_DEBUG,
"merging similar links %s%s and %s%s",
afs.af.adr, afs.af.fil, heap(i)->adr,
heap(i)->fil);
}
}
heap(i)->depth =
maximum(heap(i)->depth, heap(ptr)->depth - 1);
dejafait = 1;
}
}
// le lien n'a jamais été créé.
// cette fois ci, on le crée!
if (!dejafait) {
//
// >>>> CREER LE LIEN <<<<
//
// enregistrer lien à charger
// DEBUT ROBOTS.TXT AJOUT
if (!just_test_it) {
if ((!strfield(afs.af.adr, "ftp://")) // non ftp
&& (!strfield(afs.af.adr, "file://"))
) { // non file
if (opt->robots) { // récupérer robots
if (ishtml(opt, afs.af.fil) != 0) { // pas la peine pour des fichiers isolés
if (checkrobots(_ROBOTS, afs.af.adr, "") != -1) { // robots.txt ?
checkrobots_set(_ROBOTS, afs.af.adr, ""); // ajouter entrée vide
if (checkrobots(_ROBOTS, afs.af.adr, "") == -1) { // robots.txt ?
// enregistrer robots.txt (MACRO)
if (!hts_record_link(opt, afs.af.adr, "/robots.txt", "", "", "", NULL)) {
if ((opt->getmode & HTS_GETMODE_HTML) &&
(ptr > 0)) {
if (fp) {
fclose(fp);
fp = NULL;
}
}
XH_uninit; // désallocation mémoire & buffers
return -1;
}
heap_top()->testmode = 0; // pas mode test
heap_top()->link_import = 0; // pas mode import
heap_top()->premier = heap_top_index();
heap_top()->precedent = ptr;
heap_top()->depth = 0;
heap_top()->pass2 = max(0, numero_passe);
heap_top()->retry = 0;
#if DEBUG_ROBOTS
printf
("robots.txt: added file robots.txt for %s\n",
adr);
#endif
hts_log_print(opt, LOG_DEBUG,
"robots.txt added at %s",
afs.af.adr);
} else {
hts_log_print(opt, LOG_ERROR,
"Unexpected robots.txt error at %d",
__LINE__);
}
}
}
}
}
}
// FIN ROBOTS.TXT AJOUT
// enregistrer
if (!hts_record_link(opt, afs.af.adr, afs.af.fil, afs.save,
former.adr, former.fil, codebase)) {
if ((opt->getmode & HTS_GETMODE_HTML) &&
(ptr > 0)) {
if (fp) {
fclose(fp);
fp = NULL;
}
}
XH_uninit; // désallocation mémoire & buffers
return -1;
}
// mode test?
if (!just_test_it)
heap_top()->testmode = 0; // pas mode test
else
heap_top()->testmode = 1; // mode test
if (!import_done)
heap_top()->link_import = 0; // pas mode import
else
heap_top()->link_import = 1; // mode import
// écrire autres paramètres de la structure-lien
if ((meme_adresse) && (!import_done)
&& (heap(ptr)->premier != 0))
heap_top()->premier = heap(ptr)->premier;
else // sinon l'objet père est le précédent lui même
heap_top()->premier = heap_top_index();
heap_top()->precedent = ptr;
// noter la priorité
if (!set_prio_to)
heap_top()->depth = heap(ptr)->depth - 1;
else
heap_top()->depth = max(0, min(heap(ptr)->depth - 1, set_prio_to - 1)); // PRIORITE NULLE (catch page)
// noter pass
heap_top()->pass2 = pass_fix;
heap_top()->retry = opt->retry;
if (!just_test_it) {
hts_log_print(opt, LOG_DEBUG,
"OK, NOTE: %s%s -> %s",
heap_top()->adr,
heap_top()->fil,
heap_top()->sav);
} else {
hts_log_print(opt, LOG_DEBUG, "OK, TEST: %s%s",
heap_top()->adr,
heap_top()->fil);
}
} else { // if !dejafait
hts_log_print(opt, LOG_DEBUG,
"link has already been recorded, cancelled: %s",
afs.save);
}
} // si pas trop de liens
} // si adr[0]!='\0'
} // if adr[0]!='\0'
} // if adr[0]!='\0'
} // if strlen(lien)>0
} // if ok==0
assertf(eadr - html >= 0); // Should not go back
if (eadr > html) {
hts_automate_increment(&saut, (int) (eadr - 1 - html));
}
/* srcset candidate loop: skip the descriptor and comma, then
re-enter the capture for the next URL. Backward goto, not a loop:
the per-candidate body is this whole block. */
if (srcset_p && ok == 0) {
const char *const endp = r->adr + r->size;
const char *q = html;
while(q < endp && *q != '\0' && *q != ',' && *q != quote
&& *q != '<' && *q != '>' && (unsigned char) *q >= 32)
q++; // skip the descriptor
if (q < endp && *q == ',') {
q++;
while(q < endp && (is_realspace(*q) || *q == ','))
q++; // skip whitespace and empty candidates
if (q < endp && *q != '\0' && *q != ',' && *q != quote
&& *q != '<' && *q != '>' && (unsigned char) *q >= 32) {
hts_automate_increment(
&saut, (int) (q - html)); // keep the automate in sync
ok = 1;
goto srcset_next;
}
}
}
/* We skipped bytes and skip the " : reset state */
/*if (inscript) {
inscript_state_pos = INSCRIPT_START;
} */
} // if (p)
} // si '<' ou '>'
// plus loin
html++; // automate will be checked next loop
/* Otimization: if we are scanning in HTML data (not in tag or script),
then jump to the next starting tag */
if (ptr > 0) {
if ((!intag) /* Not in tag */
&&(!inscript) /* Not in (java)script */
&&(!in_media) /* Not in media */
&&(!incomment) /* Not in comment (<!--) */
&&(!inscript_tag) /* Not in tag with script inside */
) {
/* Not at the end */
if (html - r->adr < r->size) {
/* Not on a starting tag yet */
if (*html != '<') {
/* strchr does not well behave with null chrs.. */
/* char* adr_next = strchr(adr,'<'); */
const char *adr_next = html;
while(*adr_next != '<' && (adr_next - r->adr) < r->size) {
adr_next++;
}
/* Jump to near end (index hack) */
if (!adr_next || *adr_next != '<') {
if (html - r->adr < r->size - 4
&& r->size > 4
) {
html = r->adr + r->size - 2;
}
} else {
html = adr_next;
}
}
}
}
}
// ----------
// écrire peu à peu
if ((opt->getmode & HTS_GETMODE_HTML) && (ptr > 0))
HT_add_adr;
lastsaved = html; // dernier écrit+1
// ----------
// Checks
if (back_add_stats != opt->state.back_add_stats) {
back_add_stats = opt->state.back_add_stats;
// Check max time
if (!back_checkmirror(opt)) {
html = r->adr + r->size;
}
}
// pour les stats du shell si parsing trop long
if (r->size)
opt->state._hts_in_html_done =
(100 * ((int) (html - r->adr))) / (int) (r->size);
if (opt->state._hts_in_html_poll) {
opt->state._hts_in_html_poll = 0;
// temps à attendre, et remplir autant que l'on peut le cache (backing)
back_wait(sback, opt, cache, HTS_STAT.stat_timestart);
back_fillmax(sback, opt, cache, ptr, numero_passe);
if (!hts_loop_tick(sback, opt, 0, ptr)) {
hts_log_print(opt, LOG_ERROR, "Exit requested by shell or user");
*stre->exit_xh_ = 1; // exit requested
XH_uninit;
return -1;
} else if (opt->state._hts_cancel == 1) {
nofollow = 1; // moins violent
opt->state._hts_cancel = 0;
}
}
// refresh the backing system each 2 seconds
if (engine_stats()) {
back_wait(sback, opt, cache, HTS_STAT.stat_timestart);
back_fillmax(sback, opt, cache, ptr, numero_passe);
}
} while(html - r->adr < r->size);
opt->state._hts_in_html_parsing = 0; // flag
opt->state._hts_cancel = 0; // pas de cancel
if ((opt->getmode & HTS_GETMODE_HTML) && (ptr > 0)) {
{
char *cAddr = TypedArrayElts(output_buffer);
int cSize = (int) TypedArraySize(output_buffer);
hts_log_print(opt, LOG_DEBUG, "engine: postprocess-html: %s%s",
urladr(), urlfil());
if (RUN_CALLBACK4(opt, postprocess, &cAddr, &cSize, urladr(), urlfil()) == 1) {
hts_log_print(opt, LOG_DEBUG,
"engine: postprocess-html: callback modified data, applying %d bytes", cSize);
/* The callback either edits output_buffer in place (cAddr
unchanged) or hands back its own buffer (cAddr changed). Only
the latter needs a copy: re-appending output_buffer onto itself
would read freed memory, as the append's realloc can relocate
the block out from under cAddr. */
if (cAddr != TypedArrayElts(output_buffer)) {
TypedArraySize(output_buffer) = 0;
TypedArrayAppend(output_buffer, cAddr, cSize);
} else {
TypedArraySize(output_buffer) = (size_t) cSize;
}
}
}
/* Flush and save to disk */
if (TypedArraySize(output_buffer) != 0) {
hts_finish_html_file(
opt, cache, r, &fp, TypedArrayElts(output_buffer),
TypedArraySize(output_buffer), urladr(), urlfil(), savename());
}
TypedArrayFree(output_buffer);
}
//
//
//
} // if !error
if (opt->getmode & HTS_GETMODE_HTML) {
if (fp) {
fclose(fp);
fp = NULL;
}
}
} // analyse OK
/* Apply changes */
ENGINE_SAVE_CONTEXT();
return 0;
}
/* Mirror the savename to tell whether a redirect saves to the same file (#159);
* contract in htsparse.h. */
hts_boolean hts_redirect_same_savefile(httrackp *opt, const char *cur_adr,
const char *cur_fil,
const char *moved_adr,
const char *moved_fil) {
const int norm_slash = opt->urlhack && !opt->no_slash_dedup;
const int norm_query = opt->urlhack && !opt->no_query_dedup;
char BIGSTK n_fil[HTS_URLMAXSIZE * 2], pn_fil[HTS_URLMAXSIZE * 2];
if (strcasecmp(jump_identification_const(moved_adr),
jump_identification_const(cur_adr)) != 0)
return HTS_FALSE;
fil_normalized_filtered_ex(moved_fil, n_fil, NULL, norm_slash, norm_query);
fil_normalized_filtered_ex(cur_fil, pn_fil, NULL, norm_slash, norm_query);
return strcasecmp(n_fil, pn_fil) == 0;
}
/*
Check 301, 302, .. statuscodes (moved)
*/
int hts_mirror_check_moved(htsmoduleStruct * str,
htsmoduleStructExtended * stre) {
/* Load engine variables */
ENGINE_LOAD_CONTEXT();
// DEBUT rattrapage des 301,302,307..
// ------------------------------------------------------------
if (!error) {
// ------------------------------------------------------------
// Rattrapage des 301,302,307 (moved) et 412,416 - les 304 le sont dans le backing
// ------------------------------------------------------------
if (HTTP_IS_REDIRECT(r->statuscode)) {
hts_log_print(opt, LOG_WARNING, "%s for %s%s", r->msg, urladr(), urlfil());
{
char BIGSTK mov_url[HTS_URLMAXSIZE * 2];
lien_adrfilsave savedmoved;
lien_adrfil *const moved = &savedmoved.af;
int get_it = 0; // ne pas prendre le fichier à la même adresse par défaut
int reponse = 0;
mov_url[0] = '\0';
moved->adr[0] = '\0';
moved->fil[0] = '\0';
savedmoved.save[0] = '\0';
//
strcpybuff(mov_url, r->location);
url_drop_fragment(mov_url);
// url qque -> adresse+fichier
if ((reponse =
ident_url_relatif(mov_url, urladr(), urlfil(), moved)) >= 0) {
int set_prio_to = 0; // pas de priotité fixéd par wizard
// A same-file alias redirect must be followed, not stubbed (#159).
const hts_boolean same_savefile = hts_redirect_same_savefile(
opt, urladr(), urlfil(), moved->adr, moved->fil);
// c'est (en gros) la même URL..
// si c'est un problème de casse dans le host c'est que le serveur est buggé
// ("RFC says.." : host name IS case insensitive)
if ((strfield2(moved->adr, urladr()) != 0) && (strfield2(moved->fil, urlfil()) != 0)) { // identique à casse près
// on tourne en rond
if (strcmp(moved->fil, urlfil()) == 0) {
error = 1;
get_it = -1; // ne rien faire
hts_log_print(opt, LOG_WARNING,
"Can not bear crazy server (%s) for %s%s", r->msg,
urladr(), urlfil());
} else { // mauvaise casse, effacer entrée dans la pile et rejouer une fois
get_it = 1;
}
} else { // adresse différente
if (ishtml(opt, mov_url) == 0) { // pas même adresse MAIS c'est un fichier non html (pas de page moved possible)
// -> on prend à cette adresse, le lien sera enregistré avec lien_record() (hash)
hts_log_print(opt, LOG_DEBUG,
"wizard link test for moved file at %s%s..",
moved->adr, moved->fil);
// accepté?
if (hts_acceptlink(opt, ptr, moved->adr, moved->fil, NULL, NULL, &set_prio_to, NULL) != 1) { /* nouvelle adresse non refusée ? */
get_it = 1;
hts_log_print(opt, LOG_DEBUG, "moved link accepted: %s%s",
moved->adr, moved->fil);
}
} else if (same_savefile) {
// A stub would point at itself; follow the redirect instead.
if (hts_acceptlink(opt, ptr, moved->adr, moved->fil, NULL, NULL,
&set_prio_to, NULL) != 1) {
get_it = 1;
hts_log_print(opt, LOG_WARNING,
"Redirect to a same-file alias, fetching real "
"content: %s%s -> %s%s",
urladr(), urlfil(), moved->adr, moved->fil);
}
} /* sinon traité normalement */
}
if (get_it == 1) {
// court-circuiter le reste du traitement
// et reculer pour mieux sauter
hts_log_print(opt, LOG_WARNING,
"Warning moved treated for %s%s (real one is %s%s)",
urladr(), urlfil(), moved->adr, moved->fil);
// canceller lien actuel
error = 1;
hts_invalidate_link(opt, ptr); // invalidate hashtable entry
// noter NOUVEAU lien
{
// calculer lien et éventuellement modifier addresse/fichier
if (url_savename(&savedmoved, NULL,
heap(heap(ptr)->precedent)->adr,
heap(heap(ptr)->precedent)->fil, opt,
sback, cache, hash, ptr, numero_passe, NULL) != -1) {
// Same-file alias: the reserved name is the invalidated source,
// so record anyway.
if (same_savefile ||
hash_read(hash, savedmoved.save, NULL,
HASH_STRUCT_FILENAME) < 0) { // n'existe pas déja
// enregistrer lien avec SAV IDENTIQUE
if (hts_record_link(opt, moved->adr, moved->fil, heap(ptr)->sav, "", "", NULL)) {
// mode test?
heap_top()->testmode = heap(ptr)->testmode;
heap_top()->link_import = 0; // mode normal
if (!set_prio_to)
heap_top()->depth = heap(ptr)->depth;
else
heap_top()->depth = max(0, min(set_prio_to - 1, heap(ptr)->depth)); // PRIORITE NULLE (catch page)
heap_top()->pass2 =
max(heap(ptr)->pass2, numero_passe);
heap_top()->retry = heap(ptr)->retry;
heap_top()->premier = heap(ptr)->premier;
heap_top()->precedent = heap(ptr)->precedent;
} else { // oups erreur, plus de mémoire!!
XH_uninit; // désallocation mémoire & buffers
return 0;
}
} else {
hts_log_print(opt, LOG_INFO,
"moving %s to an existing file %s",
heap(ptr)->fil, urlfil());
}
}
}
// note métaphysique: il se peut qu'il y ait un index.html et un INDEX.HTML
// sous DOS ca marche pas très bien... mais comme je suis génial url_savename()
// est à même de régler ce problème
}
} // ident_url_xx
if (get_it == 0) { // adresse vraiment différente et potentiellement en html (pas de possibilité de bouger la page tel quel à cause des <img src..> et cie)
const size_t rn_size = 8192;
char *const rn = (char *) malloct(rn_size);
if (rn != NULL) {
hts_log_print(opt, LOG_WARNING, "File has moved from %s%s to %s",
urladr(), urlfil(), mov_url);
if (!opt->mimehtml) {
inplace_escape_uri(mov_url, sizeof(mov_url));
} else {
char BIGSTK cid[HTS_URLMAXSIZE * 3];
make_content_id(moved->adr, moved->fil, cid, sizeof(cid));
strcpybuff(mov_url, "cid:");
strcatbuff(mov_url, cid);
}
// On prépare une page qui sautera immédiatement sur la bonne URL
// Le scanner re-changera, ensuite, cette URL, pour la mirrorer!
snprintf(rn, rn_size,
"<HTML>" CRLF
"<!-- Created by HTTrack Website Copier/" HTTRACK_VERSION " " HTTRACK_AFF_AUTHORS " -->" CRLF
"<HEAD>" CRLF
"<META HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html;charset=UTF-8\">"
"<META HTTP-EQUIV=\"Refresh\" CONTENT=\"0; URL=%s\">"
"<TITLE>Page has moved</TITLE>" CRLF
"</HEAD>" CRLF
"<BODY>" CRLF
"<A HREF=\"%s\"><h3>Click here...</h3></A>" CRLF
"</BODY>" CRLF
"<!-- Created by HTTrack Website Copier/" HTTRACK_VERSION " " HTTRACK_AFF_AUTHORS " -->" CRLF
"</HTML>" CRLF,
mov_url, mov_url);
// changer la page
if (r->adr) {
freet(r->adr);
r->adr = NULL;
}
r->adr = rn;
r->size = strlen(r->adr);
strcpybuff(r->contenttype, "text/html");
}
} // get_it==0
} // bloc
// erreur HTTP (ex: 404, not found)
} else if ((r->statuscode == HTTP_PRECONDITION_FAILED) ||
(r->statuscode == HTTP_REQUESTED_RANGE_NOT_SATISFIABLE)) {
// 412/416: the resume partial is stale; re-get the whole file (#206)
lien_back *itemback = NULL;
int had_partial = 0;
int ref_existed = 0;
int ref_gone;
// Drop the temp-ref, its partial, and heap->sav so the re-get carries no
// Range; else back_add rebuilds the same Range and loops.
if (back_unserialize_ref(opt, heap(ptr)->adr, heap(ptr)->fil,
&itemback) == 0) {
had_partial = 1;
ref_existed = 1;
// best-effort: an orphaned partial cannot re-Range once the ref is gone
if (fexist_utf8(itemback->url_sav))
(void) UNLINK(fconv(OPT_GET_BUFF(opt), OPT_GET_BUFF_SIZE(opt),
itemback->url_sav));
back_clear_entry(itemback);
freet(itemback);
}
// don't re-record if the ref survived (it would re-Range and loop)
ref_gone =
url_savename_refname_remove(opt, heap(ptr)->adr, heap(ptr)->fil) ||
!ref_existed;
if (fexist_utf8(heap(ptr)->sav)) {
had_partial = 1;
remove(heap(ptr)->sav);
}
// Re-get once, only if a partial existed and both Range triggers are
// gone; a failed removal gives up rather than looping. range_used is
// unreliable (it does not survive the delayed-type two-pass).
if (had_partial && ref_gone && !fexist_utf8(heap(ptr)->sav)) {
hts_log_print(opt, LOG_DEBUG, "Partial file reget (%s) for %s%s",
r->msg, urladr(), urlfil());
if (hts_record_link(opt, heap(ptr)->adr, heap(ptr)->fil, heap(ptr)->sav, "", "", NULL)) {
heap_top()->testmode = heap(ptr)->testmode;
heap_top()->link_import = 0;
heap_top()->depth = heap(ptr)->depth;
heap_top()->pass2 = max(heap(ptr)->pass2, numero_passe);
heap_top()->retry = heap(ptr)->retry;
heap_top()->premier = heap(ptr)->premier;
heap_top()->precedent = ptr;
error = 1;
hts_invalidate_link(opt, ptr); // invalidate hashtable entry
} else { // out of memory
XH_uninit;
return 0;
}
} else {
hts_log_print(opt, LOG_WARNING,
"Giving up on partial reget (%s) for %s%s", r->msg,
urladr(), urlfil());
error = 1;
}
// Error ?
if (error) {
if (!opt->errpage) {
if (r->adr) { // désalloc
freet(r->adr);
r->adr = NULL;
}
}
}
} else if (r->statuscode != HTTP_OK) {
int can_retry = 0;
// cas où l'on peut reessayer
switch (r->statuscode) {
case STATUSCODE_TIMEOUT:
if (opt->hostcontrol) { // timeout et retry épuisés
if ((opt->hostcontrol & HTS_HOSTCONTROL_BAN_TIMEOUT) &&
(heap(ptr)->retry <= 0)) {
hts_log_print(opt, LOG_DEBUG, "Link banned: %s%s", urladr(), urlfil());
host_ban(opt, ptr, sback, jump_identification_const(urladr()));
hts_log_print(opt, LOG_DEBUG,
"Info: previous log - link banned: %s%s", urladr(),
urlfil());
} else
can_retry = 1;
} else
can_retry = 1;
break;
case STATUSCODE_SLOW:
if ((opt->hostcontrol) && (heap(ptr)->retry <= 0)) { // too slow
if (opt->hostcontrol & HTS_HOSTCONTROL_BAN_SLOW) {
hts_log_print(opt, LOG_DEBUG, "Link banned: %s%s", urladr(), urlfil());
host_ban(opt, ptr, sback, jump_identification_const(urladr()));
hts_log_print(opt, LOG_DEBUG,
"Info: previous log - link banned: %s%s", urladr(),
urlfil());
} else
can_retry = 1;
} else
can_retry = 1;
break;
case STATUSCODE_CONNERROR: // connect closed
can_retry = 1;
break;
case STATUSCODE_NON_FATAL: // other (non fatal) error
can_retry = 1;
break;
case STATUSCODE_SSL_HANDSHAKE: // bad SSL handskake
can_retry = 1;
break;
case 408:
case 409:
case 500:
case 502:
case 504:
can_retry = 1;
break;
}
if (strcmp(heap(ptr)->fil, "/primary") != 0) { // no primary (internal page 0)
if ((heap(ptr)->retry <= 0) || (!can_retry)) { // retry épuisés (ou retry impossible)
if ((opt->retry > 0) && (can_retry)) {
hts_log_print(opt, LOG_ERROR,
"\"%s\" (%d) after %d retries at link %s%s (from %s%s)",
r->msg, r->statuscode, opt->retry, urladr(), urlfil(),
heap(heap(ptr)->precedent)->adr,
heap(heap(ptr)->precedent)->fil);
} else {
if (r->statuscode == STATUSCODE_TEST_OK) { // test OK
hts_log_print(opt, LOG_INFO, "Test OK at link %s%s (from %s%s)",
urladr(), urlfil(), heap(heap(ptr)->precedent)->adr,
heap(heap(ptr)->precedent)->fil);
} else {
if (strcmp(urlfil(), "/robots.txt")) { // ne pas afficher d'infos sur robots.txt par défaut
hts_log_print(opt, LOG_ERROR,
"\"%s\" (%d) at link %s%s (from %s%s)", r->msg,
r->statuscode, urladr(), urlfil(),
heap(heap(ptr)->precedent)->adr,
heap(heap(ptr)->precedent)->fil);
} else {
hts_log_print(opt, LOG_DEBUG, "No robots.txt rules at %s",
urladr());
}
}
}
// NO error in trop level
// due to the "no connection -> previous restored" hack
// This prevent the engine from wiping all data if the website has been deleted (or moved)
// since last time (which is quite annoying)
if (heap(ptr)->precedent != 0) {
// ici on teste si on doit enregistrer la page tout de même
if (opt->errpage) {
store_errpage = 1;
}
} else {
if (strcmp(urlfil(), "/robots.txt") != 0) {
/*
This is an error caused by a link entered by the user
That is, link(s) entered by user are invalid (404, 500, connect error, proxy error->.)
If all links entered are invalid, the session failed and we will attempt to restore
the previous one
Example: Try to update a website which has been deleted remotely: this may delete
the website locally, which is really not desired (especially if the website disappeared!)
With this hack, the engine won't wipe local files (how clever)
*/
HTS_STAT.stat_errors_front++;
}
}
} else { // retry!!
hts_log_print(opt, LOG_NOTICE,
"Retry after error %d (%s) at link %s%s (from %s%s)",
r->statuscode, r->msg, urladr(), urlfil(),
heap(heap(ptr)->precedent)->adr,
heap(heap(ptr)->precedent)->fil);
// redemander fichier
if (hts_record_link(opt, urladr(), urlfil(), savename(), "", "", codebase)) {
heap_top()->testmode = heap(ptr)->testmode; // mode test?
heap_top()->link_import = 0; // pas mode import
heap_top()->depth = heap(ptr)->depth;
heap_top()->pass2 = max(heap(ptr)->pass2, numero_passe);
heap_top()->retry = heap(ptr)->retry - 1; // moins 1 retry!
heap_top()->premier = heap(ptr)->premier;
heap_top()->precedent = heap(ptr)->precedent;
} else { // oups erreur, plus de mémoire!!
return 0;
}
}
} else {
hts_log_print(opt, LOG_DEBUG, "Info: no robots.txt at %s%s", urladr(),
urlfil());
}
if (!store_errpage) {
if (r->adr) { // désalloc
freet(r->adr);
r->adr = NULL;
}
error = 1; // erreur!
}
// otherwise, consider this is not an error
}
// FIN rattrapage des 301,302,307..
// ------------------------------------------------------------
} // if !error
/* Apply changes */
ENGINE_SAVE_CONTEXT();
return 0;
}
/*
Process pause, link adding..
*/
void hts_mirror_process_user_interaction(htsmoduleStruct * str,
htsmoduleStructExtended * stre) {
int b;
/* Load engine variables */
ENGINE_LOAD_CONTEXT();
#if BDEBUG==1
printf("\nBack test..\n");
#endif
// pause/lock files
{
int do_pause = 0;
// user pause lockfile : create hts-paused.lock --> HTTrack will be paused
if (fexist
(fconcat
(OPT_GET_BUFF(opt), OPT_GET_BUFF_SIZE(opt),
StringBuff(opt->path_log), "hts-stop.lock"))) {
// remove lockfile
remove(fconcat
(OPT_GET_BUFF(opt), OPT_GET_BUFF_SIZE(opt),
StringBuff(opt->path_log), "hts-stop.lock"));
if (!fexist
(fconcat
(OPT_GET_BUFF(opt), OPT_GET_BUFF_SIZE(opt),
StringBuff(opt->path_log), "hts-stop.lock"))) {
do_pause = 1;
}
}
// after receving N bytes, pause
if (opt->fragment > 0) {
if ((HTS_STAT.stat_bytes - stat_fragment) > opt->fragment) {
do_pause = 1;
}
}
// pause?
if (do_pause) {
hts_log_print(opt, LOG_INFO, "engine: pause requested..");
while(back_nsoc(sback) > 0) { // attendre fin des transferts
back_wait(sback, opt, cache, HTS_STAT.stat_timestart);
Sleep(200);
{
back_wait(sback, opt, cache, HTS_STAT.stat_timestart);
b = 0;
if (!hts_loop_tick(sback, opt, b, ptr) || !back_checkmirror(opt)) {
hts_log_print(opt, LOG_ERROR, "Exit requested by shell or user");
*stre->exit_xh_ = 1; // exit requested
XH_uninit;
return;
}
}
}
{
FILE *fp =
fopen(fconcat
(OPT_GET_BUFF(opt), OPT_GET_BUFF_SIZE(opt),
StringBuff(opt->path_log),
"hts-paused.lock"), "wb");
if (fp) {
fspc(NULL, fp, "info"); // dater
fprintf(fp,
"Pause" LF "HTTrack is paused after retreiving " LLintP
" bytes" LF "Delete this file to continue the mirror->.." LF
"" LF "", (LLint) HTS_STAT.stat_bytes);
fclose(fp);
}
}
stat_fragment = HTS_STAT.stat_bytes;
/* Info for wrappers */
hts_log_print(opt, LOG_INFO, "engine: pause: %s",
fconcat(OPT_GET_BUFF(opt), OPT_GET_BUFF_SIZE(opt), StringBuff(opt->path_log),
"hts-paused.lock"));
RUN_CALLBACK1(opt, pause,
fconcat(OPT_GET_BUFF(opt), OPT_GET_BUFF_SIZE(opt), StringBuff(opt->path_log),
"hts-paused.lock"));
}
//
}
// end of pause/lock files
// changement dans les préférences
if (opt->state._hts_addurl) {
lien_adrfilsave add;
while(*opt->state._hts_addurl) {
char BIGSTK add_url[HTS_URLMAXSIZE * 2];
add.af.adr[0] = add.af.fil[0] = add_url[0] = '\0';
if (!link_has_authority(*opt->state._hts_addurl))
strcpybuff(add_url, "http://"); // ajouter http://
strcatbuff(add_url, *opt->state._hts_addurl);
if (ident_url_absolute(add_url, &add.af) >= 0) {
// ----Ajout----
// calculer lien et éventuellement modifier addresse/fichier
if (url_savename
(&add, NULL, NULL, NULL, opt, sback, cache, hash, ptr, numero_passe, NULL) != -1) {
if (hash_read(hash, add.save, NULL, HASH_STRUCT_FILENAME) < 0) { // n'existe pas déja
// enregistrer lien
if (hts_record_link(opt, add.af.adr, add.af.fil, add.save, "", "", NULL)) {
heap_top()->testmode = 0; // mode test?
heap_top()->link_import = 0; // mode normal
heap_top()->depth = opt->depth;
heap_top()->pass2 = max(0, numero_passe);
heap_top()->retry = opt->retry;
heap_top()->premier = heap_top_index();
heap_top()->precedent = heap_top_index();
//
hts_log_print(opt, LOG_INFO, "Link added by user: %s%s", add.af.adr,
add.af.fil);
//
} else { // oups erreur, plus de mémoire!!
XH_uninit; // désallocation mémoire & buffers
return;
}
} else {
hts_log_print(opt, LOG_NOTICE,
"Existing link %s%s not added after user request",
add.af.adr, add.af.fil);
}
}
} else {
hts_log_print(opt, LOG_ERROR, "Error during URL decoding for %s",
add_url);
}
// ----Fin Ajout----
opt->state._hts_addurl++; // suivante
}
opt->state._hts_addurl = NULL; // libérer _hts_addurl
}
// si une pause a été demandée
if (opt->state._hts_setpause
|| back_pluggable_sockets_strict(sback, opt) <= 0) {
// index du lien actuel
int b = back_index(opt, sback, urladr(), urlfil(), savename());
int prev = opt->state._hts_in_html_parsing;
if (b < 0)
b = 0; // forcer pour les stats
while(opt->state._hts_setpause || back_pluggable_sockets_strict(sback, opt) <= 0) { // on fait la pause..
opt->state._hts_in_html_parsing = 6;
back_wait(sback, opt, cache, HTS_STAT.stat_timestart);
/* time limit (-E) exceeded: stop waiting for a socket (#481) */
if (!back_checkmirror(opt))
break;
if (!hts_loop_tick(sback, opt, b, ptr)) {
hts_log_print(opt, LOG_ERROR, "Exit requested by shell or user");
*stre->exit_xh_ = 1; // exit requested
XH_uninit;
return;
}
Sleep(100); // pause
}
opt->state._hts_in_html_parsing = prev;
}
ENGINE_SAVE_CONTEXT();
return;
}
/*
Wait for next file and
check 301, 302, .. statuscodes (moved)
*/
int hts_mirror_wait_for_next_file(htsmoduleStruct * str,
htsmoduleStructExtended * stre) {
/* Load engine variables */
ENGINE_DEFINE_CONTEXT();
int b;
int n;
/* This is not supposed to hapen. */
if (heap(ptr)->pass2 == -1) {
hts_log_print(opt, LOG_WARNING, "Link is already ready %s%s", urladr(),
urlfil());
}
/* User interaction */
ENGINE_SAVE_CONTEXT();
{
hts_mirror_process_user_interaction(str, stre);
}
ENGINE_SET_CONTEXT();
/* Done while processing user interactions ? */
if (heap(ptr)->pass2 == -1) {
hts_log_print(opt, LOG_DEBUG, "Link is now ready %s%s", urladr(), urlfil());
// We are ready
return 2; // goto jump_if_done;
}
// si le fichier n'est pas en backing, le mettre..
if (!back_exist(str->sback, str->opt, urladr(), urlfil(), savename())) {
#if BDEBUG==1
printf("crash backing: %s%s\n", heap(ptr)->adr, heap(ptr)->fil);
#endif
if (back_add
(sback, opt, cache, urladr(), urlfil(), savename(),
heap(heap(ptr)->precedent)->adr, heap(heap(ptr)->precedent)->fil,
heap(ptr)->testmode) == -1) {
printf("PANIC! : Crash adding error, unexpected error found.. [%d]\n",
__LINE__);
#if BDEBUG==1
printf("error while crash adding\n");
#endif
hts_log_print(opt, LOG_ERROR, "Unexpected backing error for %s%s", urladr(),
urlfil());
}
}
#if BDEBUG==1
printf("test number of socks\n");
#endif
// ajouter autant de socket qu'on peut ajouter
n = opt->maxsoc - back_nsoc(sback);
#if BDEBUG==1
printf("%d sockets available for backing\n", n);
#endif
if ((n > 0) && (!opt->state._hts_setpause)) { // si sockets libre et pas en pause, ajouter
// remplir autant que l'on peut le cache (backing)
back_fillmax(sback, opt, cache, ptr, numero_passe);
}
// index du lien actuel
{
// ------------------------------------------------------------
// attendre que le fichier actuel soit prêt - BOUCLE D'ATTENTE
do {
/* User interaction */
ENGINE_SAVE_CONTEXT();
{
hts_mirror_process_user_interaction(str, stre);
}
ENGINE_SET_CONTEXT();
// index du lien actuel
b = back_index(opt, sback, urladr(), urlfil(), savename());
#if BDEBUG==1
printf("back index %d, waiting\n", b);
#endif
// Continue to the loop if link still present
if (b < 0)
break;
// Receive data
if (back[b].status > 0)
back_wait(sback, opt, cache, HTS_STAT.stat_timestart);
// Continue to the loop if link still present
b = back_index(opt, sback, urladr(), urlfil(), savename());
if (b < 0)
break;
// Stop the mirror
if (!back_checkmirror(opt)) {
hts_log_print(opt, LOG_ERROR, "Exit requested by shell or user");
*stre->exit_xh_ = 1; // exit requested
XH_uninit;
return 0;
}
// And fill the backing stack
if (back[b].status > 0)
back_fillmax(sback, opt, cache, ptr, numero_passe);
// Continue to the loop if link still present
b = back_index(opt, sback, urladr(), urlfil(), savename());
if (b < 0)
break;
// autres occupations de HTTrack: statistiques, boucle d'attente, etc.
if ((opt->makestat) || (opt->maketrack)) {
TStamp l = time_local();
if ((int) (l - makestat_time) >= 60) {
if (makestat_fp != NULL) {
fspc(NULL, makestat_fp, "info");
fprintf(makestat_fp,
"Rate= %d (/" LLintP ") \11NewLinks= %d (/%d)" LF,
(int) ((HTS_STAT.HTS_TOTAL_RECV -
*stre->makestat_total_) / (l - makestat_time)),
(LLint) HTS_STAT.HTS_TOTAL_RECV,
(int) opt->lien_tot - *stre->makestat_lnk_, (int) opt->lien_tot);
fflush(makestat_fp);
*stre->makestat_total_ = HTS_STAT.HTS_TOTAL_RECV;
*stre->makestat_lnk_ = heap_top_index();
}
if (stre->maketrack_fp != NULL) {
int i;
fspc(NULL, stre->maketrack_fp, "info");
fprintf(stre->maketrack_fp, LF);
for(i = 0; i < back_max; i++) {
back_info(sback, i, 3, stre->maketrack_fp);
}
fprintf(stre->maketrack_fp, LF);
fflush(stre->maketrack_fp);
}
makestat_time = l;
}
}
/* cancel links */
{
int i;
char *s;
while((s = hts_cancel_file_pop(opt)) != NULL) {
if (strnotempty(s)) { // fichier à canceller
for(i = 0; i < back_max; i++) {
if ((back[i].status > 0)) {
if (strcmp(back[i].url_sav, s) == 0) { // ok trouvé
if (back[i].status != 1000) {
#if HTS_DEBUG_CLOSESOCK
DEBUG_W("user cancel: deletehttp\n");
#endif
if (back[i].r.soc != INVALID_SOCKET)
deletehttp(&back[i].r);
back[i].r.soc = INVALID_SOCKET;
back[i].r.statuscode = STATUSCODE_INVALID;
strcpybuff(back[i].r.msg, "Cancelled by User");
back[i].status = 0; // terminé
back_set_finished(sback, i);
} else // cancel ftp.. flag à 1
back[i].stop_ftp = 1;
}
}
}
s[0] = '\0';
}
freet(s);
}
if (!hts_loop_tick(sback, opt, b, ptr)) {
hts_log_print(opt, LOG_ERROR, "Exit requested by shell or user");
*stre->exit_xh_ = 1; // exit requested
XH_uninit;
return 0;
}
}
#if HTS_POLL
if ((opt->shell) || (opt->keyboard) || (opt->verbosedisplay)
|| (!opt->quiet)) {
TStamp tl;
*stre->info_shell_ = 1;
/* Toggle with ENTER */
if (!opt->quiet) {
if (check_stdin()) {
char com[256];
linput(stdin, com, 200);
if (opt->verbosedisplay == HTS_VERBOSE_FULL)
opt->verbosedisplay = HTS_VERBOSE_SIMPLE;
else
opt->verbosedisplay = HTS_VERBOSE_FULL;
/* Info for wrappers */
hts_log_print(opt, LOG_INFO, "engine: change-options");
RUN_CALLBACK0(opt, chopt);
}
}
tl = time_local();
// générer un message d'infos sur l'état actuel
if (opt->shell) { // si shell
if ((tl - *stre->last_info_shell_) > 0) { // toute les 1 sec
FILE *fp = stdout;
int a = 0;
*stre->last_info_shell_ = tl;
if (fexist(fconcat(OPT_GET_BUFF(opt), OPT_GET_BUFF_SIZE(opt), StringBuff(opt->path_log), "hts-autopsy"))) { // débuggage: teste si le robot est vivant
// (oui je sais un robot vivant.. mais bon.. il a le droit de vivre lui aussi)
// (libérons les robots esclaves de l'internet!)
remove(fconcat
(OPT_GET_BUFF(opt), OPT_GET_BUFF_SIZE(opt),
StringBuff(opt->path_log),
"hts-autopsy"));
fp =
fopen(fconcat
(OPT_GET_BUFF(opt), OPT_GET_BUFF_SIZE(opt),
StringBuff(opt->path_log),
"hts-isalive"), "wb");
a = 1;
}
if ((*stre->info_shell_) || a) {
int i, j;
fprintf(fp, "TIME %d" LF, (int) (tl - HTS_STAT.stat_timestart));
fprintf(fp, "TOTAL %d" LF, (int) HTS_STAT.stat_bytes);
fprintf(fp, "RATE %d" LF,
(int) (HTS_STAT.HTS_TOTAL_RECV /
(tl - HTS_STAT.stat_timestart)));
fprintf(fp, "SOCKET %d" LF, back_nsoc(sback));
fprintf(fp, "LINK %d" LF, opt->lien_tot);
{
LLint mem = 0;
for(i = 0; i < back_max; i++)
if (back[i].r.adr != NULL)
mem += back[i].r.size;
fprintf(fp, "INMEM " LLintP "" LF, (LLint) mem);
}
for(j = 0; j < 2; j++) { // passes pour ready et wait
for(i = 0; i < back_max; i++) {
back_info(sback, i, j + 1, stdout); // maketrack_fp a la place de stdout ?? // **
}
}
fprintf(fp, LF);
if (a)
fclose(fp);
io_flush;
}
}
} // si shell
} // si shell ou keyboard (option)
//
#endif
} while((b >= 0) && (back[max(b, 0)].status > 0));
// If link not found on the stack, it's because it has already been downloaded
// in background
// Then, skip it and go to the next one
if (b < 0) {
hts_log_print(opt, LOG_DEBUG,
"link #%d is ready, no more on the stack, skipping: %s%s..",
ptr, urladr(), urlfil());
return 2; // goto jump_if_done;
}
if (!opt->verbosedisplay) {
if (!opt->quiet) {
static int roll = 0; /* static: ok */
roll = (roll + 1) % 4;
printf("%c\x0d", ("/-\\|")[roll]);
fflush(stdout);
}
} else if (opt->verbosedisplay == HTS_VERBOSE_SIMPLE) {
if (b >= 0) {
if (back[b].r.statuscode == HTTP_OK)
printf("%d/%d: %s%s (" LLintP " bytes) - OK\33[K\r", ptr, opt->lien_tot,
back[b].url_adr, back[b].url_fil, (LLint) back[b].r.size);
else
printf("%d/%d: %s%s (" LLintP " bytes) - %d\33[K\r", ptr, opt->lien_tot,
back[b].url_adr, back[b].url_fil, (LLint) back[b].r.size,
back[b].r.statuscode);
} else {
hts_log_print(opt, LOG_ERROR, "Link disappeared");
}
fflush(stdout);
}
// ------------------------------------------------------------
// Vérificateur d'intégrité
#if DEBUG_CHECKINT
_CHECKINT(&back[b], "Retour de back_wait, après le while") {
int i;
for(i = 0; i < back_max; i++) {
char si[256];
sprintf(si, "Test global après back_wait, index %d", i);
_CHECKINT(&back[i], si)
}
}
#endif
// copier structure réponse htsblk
if (b >= 0) {
memcpy(r, &(back[b].r), sizeof(htsblk));
r->location = stre->loc_; // ne PAS copier location!! adresse, pas de buffer
if (back[b].r.location)
strlcpybuff(r->location, back[b].r.location, HTS_URLMAXSIZE * 2);
back[b].r.adr = NULL; // ne pas faire de desalloc ensuite
// libérer emplacement backing
back_maydelete(opt, cache, sback, b);
}
// débug graphique
#if BDEBUG==2
{
char s[12];
int i = 0;
_GOTOXY(1, 1);
printf("Rate=%d B/sec\n",
(int) (HTS_STAT.HTS_TOTAL_RECV /
(time_local() - HTS_STAT.stat_timestart)));
while(i < minimum(back_max, 160)) {
if (back[i].status > 0) {
sprintf(s, "%d", back[i].r.size);
} else if (back[i].status == STATUS_READY) {
strcpybuff(s, "ENDED");
} else
strcpybuff(s, " - ");
while(strlen(s) < 8)
strcatbuff(s, " ");
printf("%s", s);
io_flush;
i++;
}
}
#endif
#if BDEBUG==1
printf("statuscode=%d with %s / msg=%s\n", r->statuscode, r->contenttype,
r->msg);
#endif
}
ENGINE_SAVE_CONTEXT();
return 0;
}
/* Wait for delayed types */
int hts_wait_delayed(htsmoduleStruct * str, lien_adrfilsave *afs,
char *parent_adr, char *parent_fil, lien_adrfil *former,
int *forbidden_url) {
ENGINE_LOAD_CONTEXT_BASE();
hash_struct *const hash = hashptr;
int in_error = 0;
LLint in_error_size = 0;
char in_error_msg[32];
// resolve unresolved type
if (opt->savename_delayed != HTS_SAVENAME_DELAYED_NONE &&
*forbidden_url == 0 && IS_DELAYED_EXT(afs->save) && !opt->state.stop) {
int loops;
int continue_loop;
char BIGSTK
cookie_before[16384]; /* #15: this URL's Cookie header, pre-request */
hts_log_print(opt, LOG_DEBUG, "Waiting for type to be known: %s%s", afs->af.adr,
afs->af.fil);
/* Follow while type is unknown and redirects occurs */
for(loops = 0, continue_loop = 1;
IS_DELAYED_EXT(afs->save) && continue_loop && loops < 7; loops++) {
continue_loop = 0;
/* #15: snapshot the Cookie header THIS url would send, so only its own
self-redirect Set-Cookie trips the retry, not a concurrent slot's. */
cookie_before[0] = '\0';
if (opt->accept_cookie && opt->cookie != NULL)
http_cookie_header(opt->cookie, jump_identification_const(afs->af.adr),
afs->af.fil, cookie_before, sizeof(cookie_before));
/* Wait for an available slot */
if (!hts_wait_available_socket(sback, opt, cache, ptr))
return -1;
/* We can lookup directly in the cache to speedup this mess */
if (opt->delayed_cached) {
lien_back back;
memset(&back, 0, sizeof(back));
back.r = cache_read(opt, cache, afs->af.adr, afs->af.fil, NULL, NULL); // test uniquement
if (back.r.statuscode == HTTP_OK && strnotempty(back.r.contenttype)) { // cache found, and aswer is 'OK'
hts_log_print(opt, LOG_DEBUG,
"Direct type lookup in cache (-%%D1): %s",
back.r.contenttype);
/* Recompute filename with MIME type */
afs->save[0] = '\0';
url_savename(afs, former, heap(ptr)->adr,
heap(ptr)->fil, opt, sback, cache,
hash, ptr, numero_passe, &back);
/* Recompute authorization with MIME type */
{
int new_forbidden_url =
hts_acceptmime(opt, ptr, afs->af.adr, afs->af.fil, back.r.contenttype);
if (new_forbidden_url != -1) {
hts_log_print(opt, LOG_DEBUG, "result for wizard mime test: %d",
new_forbidden_url);
if (new_forbidden_url == 1) {
*forbidden_url = new_forbidden_url;
hts_log_print(opt, LOG_DEBUG,
"link forbidden because of MIME types restrictions: %s%s",
afs->af.adr, afs->af.fil);
break; // exit loop
}
}
}
/* And exit loop */
break;
}
}
/* Check if the file was recorded already (necessary for redirects) */
if (hash_read(hash, afs->save, NULL, HASH_STRUCT_FILENAME) >= 0) {
if (loops == 0) { /* Should not happend */
hts_log_print(opt, LOG_ERROR,
"Duplicate entry in hts_wait_delayed() cancelled: %s%s -> %s",
afs->af.adr, afs->af.fil, afs->save);
}
/* Exit loop (we're done) */
continue_loop = 0;
break;
}
/* Add in backing (back_index() will respond correctly) */
if (back_add_if_not_exists
(sback, opt, cache, afs->af.adr, afs->af.fil, afs->save, parent_adr, parent_fil,
0) != -1) {
int b;
b = back_index(opt, sback, afs->af.adr, afs->af.fil, afs->save);
if (b < 0) {
printf("PANIC! : Crash adding error, unexpected error found.. [%d]\n",
__LINE__);
XH_uninit; // désallocation mémoire & buffers
return -1;
}
/* We added the link before the parser recorded it -- the background download MUST NOT clean silently this entry! (Petr Gajdusek) */
back[b].early_add = 1;
/* Cache read failed because file does not exist (bad delayed name!)
Just re-add with the correct name, as we know the MIME now!
*/
if (back[b].r.statuscode == STATUSCODE_INVALID && back[b].r.adr == NULL) {
lien_back delayed_back;
back_copy_static(&back[b], &delayed_back);
/* Delete entry */
back[b].r.statuscode = 0; /* TEMPORARY INVESTIGATE WHY WE FETCHED A SOCKET HERE */
back_maydelete(opt, cache, sback, b); // cancel
b = -1;
/* the cancel may leave the now-unreferenced placeholder on disk
* (#483) */
if (fexist_utf8(delayed_back.url_sav)) {
back_delayed_discard(opt, &delayed_back);
}
/* Recompute filename with MIME type */
afs->save[0] = '\0';
url_savename(afs, former, heap(ptr)->adr,
heap(ptr)->fil, opt, sback, cache,
hash, ptr, numero_passe, &delayed_back);
/* Recompute authorization with MIME type */
{
int new_forbidden_url =
hts_acceptmime(opt, ptr, afs->af.adr, afs->af.fil, delayed_back.r.contenttype);
if (new_forbidden_url != -1) {
hts_log_print(opt, LOG_DEBUG, "result for wizard mime test: %d",
*forbidden_url);
if (new_forbidden_url == 1) {
*forbidden_url = new_forbidden_url;
hts_log_print(opt, LOG_DEBUG,
"link forbidden because of MIME types restrictions: %s%s",
afs->af.adr, afs->af.fil);
break; // exit loop
}
}
}
/* Re-Add wiht correct type */
if (back_add_if_not_exists
(sback, opt, cache, afs->af.adr, afs->af.fil, afs->save, parent_adr, parent_fil,
0) != -1) {
b = back_index(opt, sback, afs->af.adr, afs->af.fil, afs->save);
}
if (b < 0) {
printf
("PANIC! : Crash adding error, unexpected error found.. [%d]\n",
__LINE__);
XH_uninit; // désallocation mémoire & buffers
return -1;
}
/* We added the link before the parser recorded it -- the background download MUST NOT clean silently this entry! (Petr Gajdusek) */
back[b].early_add = 1;
hts_log_print(opt, LOG_DEBUG,
"Type immediately loaded from cache: %s",
delayed_back.r.contenttype);
}
/* Wait for headers to be received */
if (b >= 0) {
back_set_locked(sback, b); // Locked entry
}
do {
if (b < 0)
break;
// temps à attendre, et remplir autant que l'on peut le cache (backing)
if (back[b].status > 0) {
back_wait(sback, opt, cache, 0);
}
if (ptr >= 0) {
back_fillmax(sback, opt, cache, ptr, numero_passe);
}
if (!hts_loop_tick(sback, opt, b, ptr)) {
back_set_unlocked(sback, b);
return -1;
} else if (opt->state._hts_cancel ||
!back_checkmirror(
opt)) { // cancel level 2 or 1 (cancel parsing)
back_delete(opt, cache, sback, b); // cancel test
break;
}
} while (
/* dns/connect/request */
(back[b].status >= 99 && back[b].status <= 101) ||
/* For redirects, wait for request to be terminated */
(HTTP_IS_REDIRECT(back[b].r.statuscode) && back[b].status > 0) ||
/* Same for errors */
(HTTP_IS_ERROR(back[b].r.statuscode) && back[b].status > 0) ||
/* Contested type: wait for a sniffable body head (or EOF) */
(back[b].r.statuscode == HTTP_OK && back[b].status > 0 &&
strnotempty(back[b].r.cdispo) == 0 &&
back[b].r.size < HTS_SNIFF_LEN &&
hts_ext_sniff_wanted(opt, back[b].r.contenttype,
back[b].url_fil)));
if (b >= 0) {
back_set_unlocked(sback, b); // Unlocked entry
}
/* ready (chunked) or ready (regular download) or ready (completed) */
// Note: filename NOT in hashtable yet - liens_record will do it, with the correct ext!
if (b >= 0) {
lien_back delayed_back;
back_copy_static(&back[b], &delayed_back);
/* Error */
if (HTTP_IS_ERROR(back[b].r.statuscode)) {
/* seen as in error */
in_error = back[b].r.statuscode;
in_error_msg[0] = 0;
strncat(in_error_msg, back[b].r.msg, sizeof(in_error_msg) - 1);
in_error_size = back[b].r.totalsize;
/* don't break, even with "don't take error pages" switch, because we need to process the slot anyway (and cache the error) */
}
/* Moved! */
else if (HTTP_IS_REDIRECT(back[b].r.statuscode)) {
char BIGSTK mov_url[HTS_URLMAXSIZE * 2];
char BIGSTK cookie_after[16384];
hts_boolean cookies_changed;
/* #15: cookie-wall signal: this URL's own Cookie header changed
across its self-redirect (a Set-Cookie it just set). */
cookie_after[0] = '\0';
if (opt->accept_cookie && opt->cookie != NULL)
http_cookie_header(
opt->cookie, jump_identification_const(afs->af.adr),
afs->af.fil, cookie_after, sizeof(cookie_after));
cookies_changed = strcmp(cookie_before, cookie_after) != 0;
mov_url[0] = '\0';
strcpybuff(mov_url, back[b].r.location); // copier URL
url_drop_fragment(mov_url);
/* Remove (temporarily created) file if it was created */
UNLINK(fconv(OPT_GET_BUFF(opt), OPT_GET_BUFF_SIZE(opt), back[b].url_sav));
/* Remove slot! */
if (back[b].status == STATUS_READY) {
back_maydelete(opt, cache, sback, b);
} else { /* should not happend */
back_delete(opt, cache, sback, b);
}
b = -1;
/* Handle redirect */
if (strnotempty(mov_url)) { // location existe!
lien_adrfil moved;
moved.adr[0] = moved.fil[0] = '\0';
//
if (ident_url_relatif(mov_url, afs->af.adr, afs->af.fil, &moved) >= 0) {
hts_log_print(opt, LOG_DEBUG,
"Redirect while resolving type: %s%s -> %s%s",
afs->af.adr, afs->af.fil, moved.adr, moved.fil);
// si non bouclage sur soi même, ou si test avec GET non testé
if (strcmp(moved.adr, afs->af.adr) != 0 || strcmp(moved.fil, afs->af.fil) != 0) {
// recopier former->adr/fil?
if (former != NULL) {
if (strnotempty(former->adr) == 0) { // Pas déja noté
strcpybuff(former->adr, afs->af.adr);
strcpybuff(former->fil, afs->af.fil);
}
}
// check explicit forbidden - don't follow 3xx in this case
{
int set_prio_to = 0;
if (hts_acceptlink(opt, ptr, moved.adr, moved.fil, NULL, NULL, &set_prio_to, NULL) == 1) { /* forbidden */
/* Note: the cache 'cached_tests' system will remember this error, and we'll only issue ONE request */
*forbidden_url = 1; /* Forbidden! */
hts_log_print(opt, LOG_DEBUG,
"link forbidden because of redirect beyond the mirror scope at %s%s -> %s%s",
afs->af.adr, afs->af.fil, moved.adr, moved.fil);
strcpybuff(afs->af.adr, moved.adr);
strcpybuff(afs->af.fil, moved.fil);
mov_url[0] = '\0';
break;
}
}
// ftp: stop!
if (strfield(mov_url, "ftp://")) {
strcpybuff(afs->af.adr, moved.adr);
strcpybuff(afs->af.fil, moved.fil);
break;
}
/* ok, continue */
strcpybuff(afs->af.adr, moved.adr);
strcpybuff(afs->af.fil, moved.fil);
continue_loop = 1;
/* Recompute filename for hash lookup */
afs->save[0] = '\0';
url_savename(afs, former, heap(ptr)->adr, heap(ptr)->fil,
opt, sback, cache, hash, ptr, numero_passe,
&delayed_back);
} else if (cookies_changed) {
// #15: cookie-wall self-redirect; evict the cached
// fast-header so the re-issue refetches with the cookie.
if (cache->cached_tests != NULL)
coucal_remove(cache->cached_tests,
concat(OPT_GET_BUFF(opt),
OPT_GET_BUFF_SIZE(opt), afs->af.adr,
afs->af.fil));
afs->save[0] = '\0';
url_savename(afs, former, heap(ptr)->adr, heap(ptr)->fil, opt,
sback, cache, hash, ptr, numero_passe,
&delayed_back);
continue_loop = 1;
} else {
hts_log_print(opt, LOG_WARNING,
"Unable to test %s%s (loop to same filename)",
afs->af.adr, afs->af.fil);
} // loop to same location
} // ident_url_relatif()
} // location
} // redirect
hts_log_print(opt, LOG_DEBUG, "Final type for %s%s: '%s'", afs->af.adr, afs->af.fil,
delayed_back.r.contenttype);
/* If we are done, do additional checks with final type and authorizations */
if (!continue_loop) {
/* Recompute filename with MIME type */
afs->save[0] = '\0';
url_savename(afs, former,
heap(ptr)->adr, heap(ptr)->fil, opt,
sback, cache, hash, ptr, numero_passe, &delayed_back);
/* Recompute authorization with MIME type */
{
int new_forbidden_url =
hts_acceptmime(opt, ptr, afs->af.adr, afs->af.fil, delayed_back.r.contenttype);
if (new_forbidden_url != -1) {
hts_log_print(opt, LOG_DEBUG, "result for wizard mime test: %d",
*forbidden_url);
if (new_forbidden_url == 1) {
*forbidden_url = new_forbidden_url;
hts_log_print(opt, LOG_DEBUG,
"link forbidden because of MIME types restrictions: %s%s",
afs->af.adr, afs->af.fil);
break; // exit loop
}
}
}
}
/* Still have a back reference */
if (b >= 0) {
/* move a still-writing placeholder before the url_sav patch
blinds every cleanup to it (#483) */
back_delayed_rename(opt, &back[b], afs->save);
/* patch url_sav BEFORE finalize: it records/caches under this name
*/
strcpybuff(back[b].url_sav, afs->save);
/* Finalize now as we have the type */
if (back[b].status == STATUS_READY) {
if (!back[b].finalized) {
hts_log_print(opt, LOG_TRACE, "finalizing as we have the type");
back_finalize(opt, cache, sback, b);
}
}
}
} // b >= 0
} else {
printf("PANIC! : Crash adding error, unexpected error found.. [%d]\n",
__LINE__);
XH_uninit; // désallocation mémoire & buffers
return -1;
}
} // while(IS_DELAYED_EXT(save))
if (in_error != 0) {
/* 'no error page' selected or file discarded by size rules! */
if (!opt->errpage || (in_error == STATUSCODE_TOO_BIG)) {
/* Note: the cache 'cached_tests' system will remember this error, and we'll only issue ONE request */
/* Do not post-exclude the link here (*forbidden_url): the cache system
would never process it again, and it would be refetched endlessly */
if (in_error == STATUSCODE_TOO_BIG) {
hts_log_print(opt, LOG_INFO,
"link not taken because of its size (%d bytes) at %s%s",
(int) in_error_size, afs->af.adr, afs->af.fil);
} else {
hts_log_print(opt, LOG_INFO,
"link not taken because of error (%d '%s') at %s%s",
in_error, in_error_msg, afs->af.adr, afs->af.fil);
}
}
}
// error
if (*forbidden_url != 1 && IS_DELAYED_EXT(afs->save)) {
*forbidden_url = 1;
if (in_error) {
hts_log_print(opt, LOG_WARNING,
"link in error (%d '%s'), type unknown, aborting: %s%s",
in_error, in_error_msg, afs->af.adr, afs->af.fil);
} else {
hts_log_print(opt, LOG_WARNING,
"link is probably looping, type unknown, aborting: %s%s",
afs->af.adr, afs->af.fil);
}
}
} // delayed type check ?
ENGINE_SAVE_CONTEXT_BASE();
return 0;
}
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