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/* ------------------------------------------------------------ */ /* HTTrack Website Copier, Offline Browser for Windows and Unix Copyright (C) Xavier Roche and other contributors 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 2 of the License, or 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, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. Important notes: - We hereby ask people using this source NOT to use it in purpose of grabbing emails addresses, or collecting any other private information on persons. This would disgrace our work, and spoil the many hours we spent on it. Please visit our Website: http://www.httrack.com */ /* ------------------------------------------------------------ */ /* File: httrack.c subroutines: */ /* backing system (multiple socket download) */ /* Author: Xavier Roche */ /* ------------------------------------------------------------ */ #include "htsback.h" /* specific definitions */ #include "htsbase.h" #include "htsnet.h" #include "htsthread.h" #include <stdio.h> #include <stdlib.h> #include <string.h> /* END specific definitions */ //#if HTS_WIN #include "htsftp.h" //#endif #if HTS_WIN #ifndef __cplusplus // DOS #include <process.h> /* _beginthread, _endthread */ #endif #else #endif #undef test_flush #define test_flush if (opt->flush) { fflush(opt->log); fflush(opt->errlog); } // --- // routines de backing // retourne l'index d'un lien dans un tableau de backing int back_index(lien_back* back,int back_max,char* adr,char* fil,char* sav) { register int i=0; register int index=-1; while( i<back_max ) { if (back[i].status>=0) // rΘception OU prΩt if (strfield2(back[i].url_adr,adr)) { if (strcmp(back[i].url_fil,fil)==0) { if (index==-1) /* first time we meet, store it */ index=i; else if (strcmp(back[i].url_sav,sav)==0) { /* oops, check sav too */ index=i; return index; } } } i++; } return index; } // nombre d'entrΘes libres dans le backing int back_available(lien_back* back,int back_max) { int i; int nb=0; for(i=0;i<back_max;i++) if (back[i].status==-1) /* libre */ nb++; return nb; } // retourne estimation de la taille des html et fichiers stockΘs en mΘmoire LLint back_incache(lien_back* back,int back_max) { int i; LLint sum=0; for(i=0;i<back_max;i++) if (back[i].status!=-1) if (back[i].r.adr) // ne comptabilier que les blocs en mΘmoire sum+=max(back[i].r.size,back[i].r.totalsize); return sum; } // le lien a-t-il ΘtΘ mis en backing? HTS_INLINE int back_exist(lien_back* back,int back_max,char* adr,char* fil,char* sav) { return (back_index(back,back_max,adr,fil,sav)>=0); } // nombre de sockets en tΓche de fond int back_nsoc(lien_back* back,int back_max) { int n=0; int i; for(i=0;i<back_max;i++) if (back[i].status>0) // rΘception uniquement n++; return n; } // effacer entrΘe int back_delete(lien_back* back,int p) { if (p>=0) { // on sait jamais.. // VΘrificateur d'intΘgritΘ #if DEBUG_CHECKINT _CHECKINT(&back[p],"Appel back_delete") #endif #if HTS_DEBUG_CLOSESOCK char info[256]; sprintf(info,"back_delete: #%d\n",p); DEBUG_W2(info); #endif // LibΘrer tous les sockets, handles, buffers.. if (back[p].r.soc!=INVALID_SOCKET) { #if HTS_DEBUG_CLOSESOCK DEBUG_W("back_delete: deletehttp\n"); #endif deletehttp(&back[p].r); back[p].r.soc=INVALID_SOCKET; } if (back[p].r.adr!=NULL) { // reste un bloc α dΘsallouer freet(back[p].r.adr); back[p].r.adr=NULL; } if (back[p].chunk_adr!=NULL) { // reste un bloc α dΘsallouer freet(back[p].chunk_adr); back[p].chunk_adr=NULL; back[p].chunk_size=0; back[p].is_chunk=0; } if (back[p].r.is_file) { // fermer fichier entrΘe if (back[p].r.fp!=NULL) { fclose(back[p].r.fp); back[p].r.fp=NULL; } } if (back[p].r.is_write) { // ecriture directe if (back[p].r.out!=NULL) { // fermer fichier sortie fclose(back[p].r.out); back[p].r.out=NULL; } /* Θcrire date "remote" */ if (strnotempty(back[p].url_sav)) // normalement existe si on a un fichier de sortie if (strnotempty(back[p].r.lastmodified)) // last-modified existe if (fexist(back[p].url_sav)) // ainsi que le fichier set_filetime_rfc822(back[p].url_sav,back[p].r.lastmodified); /* executer commande utilisateur aprΦs chargement du fichier */ usercommand(0,NULL,back[p].url_sav); back[p].r.is_write=0; } // Tout nettoyer bzero((char *)(&back[p]),sizeof(lien_back)); back[p].r.soc=INVALID_SOCKET; back[p].r.location=back[p].location_buffer; // Le plus important: libΘrer le champ back[p].status=-1; } return 0; } /* Space left on backing stack */ int back_stack_available(lien_back* back,int back_max) { int p=0,n=0; for( ; p < back_max ; p++ ) if ( back[p].status == -1 ) n++; return n; } // ajouter un lien en backing int back_add(lien_back* back,int back_max,httrackp* opt,cache_back* cache,char* adr,char* fil,char* save,char* referer_adr,char* referer_fil,int test,short int* pass2_ptr) { int p=0; // vΘrifier cohΘrence de adr et fil (non vide!) if (strnotempty(adr)==0) { if ((opt->debug>1) && (opt->errlog!=NULL)) { fspc(opt->errlog,"debug"); fprintf(opt->errlog,"error: adr is empty for back_add"LF); } return -1; // erreur! } if (strnotempty(fil)==0) { if ((opt->debug>1) && (opt->errlog!=NULL)) { fspc(opt->errlog,"debug"); fprintf(opt->errlog,"error: fil is empty for back_add"LF); } return -1; // erreur! } // FIN vΘrifier cohΘrence de adr et fil (non vide!) // rechercher emplacement while((p<back_max) && back[p].status!=-1) p++; if (back[p].status==-1) { // ok on a de la place back[p].send_too[0]='\0'; // Θventuels paramΦtres supplΘmentaires α transmettre au serveur // ne sert α rien normalement if (back[p].r.soc!=INVALID_SOCKET) { #if HTS_DEBUG_CLOSESOCK DEBUG_W("back_add: deletehttp\n"); #endif deletehttp(&back[p].r); } // effacer r bzero((char*) &(back[p].r), sizeof(htsblk)); back[p].r.soc=INVALID_SOCKET; back[p].r.location=back[p].location_buffer; // crΘer entrΘe strcpy(back[p].url_adr,adr); strcpy(back[p].url_fil,fil); strcpy(back[p].url_sav,save); back[p].pass2_ptr=pass2_ptr; // copier referer si besoin strcpy(back[p].referer_adr,""); strcpy(back[p].referer_fil,""); if ((referer_adr) && (referer_fil)) { // existe if ((strnotempty(referer_adr)) && (strnotempty(referer_fil))) { // non vide if (referer_adr[0]!='!') { // non dΘtruit if (strcmp(referer_adr,"file://")) { // PAS file:// if (strcmp(referer_adr,"primary")) { // pas referer 1er lien strcpy(back[p].referer_adr,referer_adr); strcpy(back[p].referer_fil,referer_fil); } } } } } // sav ne sert α rien pour le moment back[p].r.size=0; // rien n'a encore ΘtΘ chargΘ back[p].r.soc=INVALID_SOCKET; // pas de socket back[p].r.adr=NULL; // pas de bloc de mΘmoire back[p].r.is_write=0; // α priori stockage en mΘmoire back[p].maxfile_html=opt->maxfile_html; back[p].maxfile_nonhtml=opt->maxfile_nonhtml; back[p].testmode=test; // mode test? if (!opt->http10) // option "forcer 1.0" dΘsactivΘe back[p].http11=1; // autoriser http/1.1 back[p].head_request=0; if (strcmp(back[p].url_sav,BACK_ADD_TEST)==0) // HEAD back[p].head_request=1; else if (strcmp(back[p].url_sav,BACK_ADD_TEST2)==0) // test en GET back[p].head_request=2; // test en get // tester cache if ((strcmp(adr,"file://")) /* pas fichier */ && ( (!test) || (cache->type==1) ) /* cache prioritaire, laisser passer en test! */ && ( (strnotempty(save)) || (strcmp(fil,"/robots.txt")==0) ) ) { // si en test on ne doit pas utiliser le cache sinon telescopage avec le 302.. //if ((!test) && (strcmp(adr,"file://")) //if ((!test) && (strncmp(adr,"ftp://",6)) && (strcmp(adr,"file://")) #if HTS_FAST_CACHE int hash_pos; int hash_pos_return=0; #else char* a=NULL; #endif #if HTS_FAST_CACHE if (cache->hash) { #else if (cache->use) { #endif char buff[HTS_URLMAXSIZE*4]; #if HTS_FAST_CACHE strcpy(buff,adr); strcat(buff,fil); hash_pos_return=inthash_read((hash_chain**)cache->hash,cache->hash_size,buff,(long int*)&hash_pos); #else buff[0]='\0'; strcat(buff,"\n"); strcat(buff,adr); strcat(buff,"\n"); strcat(buff,fil); strcat(buff,"\n"); a=strstr(cache->use,buff); #endif // Ok, notΘ en cache->. mais bien prΘsent dans le cache ou sur disque? #if HTS_FAST_CACHE if (hash_pos_return) { #else if (a) { #endif if (!test) { // non mode test #if HTS_FAST_CACHE int pos=hash_pos; #else int pos=-1; a+=strlen(buff); sscanf(a,"%d",&pos); // lire position #endif if (pos<0) { // pas de mise en cache data, vΘrifier existence if (fsize(antislash(save)) <= 0) { // fichier existe pas ou est vide! #if HTS_FAST_CACHE hash_pos_return=0; #else a=NULL; #endif // dΘvalider car non prΘsent sur disque dans structure originale!!! // sinon, le fichier est ok α priori, mais on renverra un if-modified-since pour // en Ωtre s√r if (opt->norecatch) { // tester norecatch if (!fexist(antislash(save))) { // fichier existe pas mais dΘclarΘ: on l'a effacΘ FILE* fp=fopen(antislash(save),"wb"); if (fp) fclose(fp); if (opt->log!=NULL) { fspc(opt->log,"warning"); fprintf(opt->log,"File must have been erased by user, ignoring: %s%s"LF,back[p].url_adr,back[p].url_fil); test_flush; } } } } } } } // } else #if HTS_FAST_CACHE hash_pos_return=0; #else a=NULL; #endif // Existe pas en cache, ou bien pas de cache prΘsent #if HTS_FAST_CACHE if (hash_pos_return) { // OK existe en cache (et donnΘes aussi)! #else if (a!=NULL) { // OK existe en cache (et donnΘes aussi)! #endif if (cache->type==1) { // cache prioritaire (pas de test if-modified..) // dans ce cas on peut Θgalement lire des rΘponses cachΘes comme 404,302... // lire dans le cache if (!test) back[p].r=cache_read(opt,cache,adr,fil,save); else back[p].r=cache_read(opt,cache,adr,fil,NULL); // charger en tΩte uniquement du cache if (!back[p].r.location) back[p].r.location=back[p].location_buffer; else { /* recopier */ strcpy(back[p].location_buffer,back[p].r.location); back[p].r.location=back[p].location_buffer; } /* Interdiction taille par le wizard? --> dΘtruire */ if (back[p].r.statuscode != -1) { // pas d'erreur de lecture if (!back_checksize(opt,&back[p],0)) { back[p].status=0; // FINI back[p].r.statuscode=-1; if (!back[p].testmode) strcpy(back[p].r.msg,"Cached file skipped (too big)"); else strcpy(back[p].r.msg,"Test: Cached file skipped (too big)"); return 0; } } if (back[p].r.statuscode != -1) { // pas d'erreur de lecture if ((opt->debug>0) && (opt->log!=NULL)) { if (!test) { fspc(opt->log,"debug"); fprintf(opt->log,"File immediately loaded from cache: %s%s"LF,back[p].url_adr,back[p].url_fil); test_flush; } else { fspc(opt->log,"debug"); fprintf(opt->log,"File immediately tested from cache: %s%s"LF,back[p].url_adr,back[p].url_fil); test_flush; } } back[p].r.notmodified=1; // fichier non modifiΘ back[p].status=0; // OK prΩt //printf(">%s status %d\n",back[p].r.contenttype,back[p].r.statuscode); return 0; } else { // erreur // effacer r bzero((char*) &(back[p].r), sizeof(htsblk)); back[p].r.soc=INVALID_SOCKET; back[p].r.location=back[p].location_buffer; // et continuer (chercher le fichier) } } else if (cache->type==2) { // si en cache, demander de tester If-Modified-Since htsblk* r=cache_header(opt,cache,adr,fil); /* Interdiction taille par le wizard? */ { LLint save_totalsize=back[p].r.totalsize; back[p].r.totalsize=r->totalsize; if (!back_checksize(opt,&back[p],1)) { r=NULL; // back[p].status=0; // FINI deletehttp(&back[p].r); back[p].r.soc=INVALID_SOCKET; if (!back[p].testmode) strcpy(back[p].r.msg,"File too big"); else strcpy(back[p].r.msg,"Test: File too big"); return 0; } back[p].r.totalsize=save_totalsize; } if (r) { if (r->statuscode==200) { // uniquement des 200 (OK) if (strnotempty(r->etag)) { // ETag (RFC2616) if (strnotempty(r->lastmodified)) sprintf(back[p].send_too,"If-None-Match: %s\r\nIf-Modified-Since: %s\r\n",r->etag,r->lastmodified); else sprintf(back[p].send_too,"If-None-Match: %s\r\n",r->etag); } else if (strnotempty(r->lastmodified)) sprintf(back[p].send_too,"If-Modified-Since: %s\r\n",r->lastmodified); else if (strnotempty(cache->lastmodified)) sprintf(back[p].send_too,"If-Modified-Since: %s\r\n",cache->lastmodified); /* this is an update of a file */ if (strnotempty(back[p].send_too)) back[p].is_update=1; } /* else if (strnotempty(cache->lastmodified)) sprintf(back[p].send_too,"If-Modified-Since: %s\r\n",cache->lastmodified); */ } #if DEBUGCA printf("..is modified test %s\n",back[p].send_too); #endif } // Okay, pas trouvΘ dans le cache // Et si le fichier existe sur disque? // Pas dans le cache: fichier n'a pas ΘtΘ transfΘrΘ du tout, donc pas sur disque? } else { if (fexist(save)) { // fichier existe? aghl! LLint sz=fsize(save); // Bon, lα il est possible que le fichier ait ΘtΘ partiellement transfΘrΘ // (s'il l'avait ΘtΘ en totalitΘ il aurait ΘtΘ inscrit dans le cache ET existerait sur disque) // PAS de If-Modified-Since, on a pas connaissance des donnΘes α la date du cache // On demande juste les donnΘes restantes si le date est valide (206), tout sinon (200) if ((ishtml(save) != 1) && (ishtml(back[p].url_fil)!=1)) { // NON HTML (liens changΘs!!) if (sz>0) { // Fichier non vide? (question bΩte, sinon on transfert tout!) if (strnotempty(cache->lastmodified)) { /* pas de If-.. possible */ /*if ( (!opt->http10) && (strnotempty(cache->lastmodified)) ) { */ /* ne pas forcer 1.0 */ #if DEBUGCA printf("..if unmodified since %s size "LLintP"\n",cache->lastmodified,(LLint)sz); #endif if ((opt->debug>1) && (opt->log!=NULL)) { fspc(opt->log,"debug"); fprintf(opt->log,"File partially present ("LLintP" bytes): %s%s"LF,(LLint)sz,back[p].url_adr,back[p].url_fil); test_flush; } /* impossible - don't have etag or date if (strnotempty(back[p].r.etag)) { // ETag (RFC2616) sprintf(back[p].send_too,"If-None-Match: %s\r\n",back[p].r.etag); back[p].http11=1; // En tΩte 1.1 } else if (strnotempty(back[p].r.lastmodified)) { sprintf(back[p].send_too,"If-Unmodified-Since: %s\r\n",back[p].r.lastmodified); back[p].http11=1; // En tΩte 1.1 } else */ if (strlen(cache->lastmodified)) { sprintf(back[p].send_too, "If-Unmodified-Since: %s\r\nRange: bytes="LLintP"-\r\n" ,cache->lastmodified,(LLint)sz); back[p].http11=1; // En tΩte 1.1 back[p].range_req_size=sz; } else { if ((opt->debug>0) && (opt->errlog!=NULL)) { fspc(opt->log,"warning"); fprintf(opt->log,"Could not find timestamp for partially present file, restarting (lost "LLintP" bytes): %s%s"LF,(LLint)sz,back[p].url_adr,back[p].url_fil); test_flush; } } } else { if ((opt->debug>0) && (opt->errlog!=NULL)) { fspc(opt->errlog,"warning"); /* if (opt->http10) fprintf(opt->errlog,"File partially present (%d bytes) retransfered due to HTTP/1.0 settings: %s%s"LF,sz,back[p].url_adr,back[p].url_fil); else */ fprintf(opt->errlog,"File partially present ("LLintP" bytes) retransfered due to lack of cache: %s%s"LF,(LLint)sz,back[p].url_adr,back[p].url_fil); test_flush; } /* Sinon requΩte normale... */ back[p].http11=0; } } else if (opt->norecatch) { // tester norecatch filenote(save,NULL); // ne pas purger tout de mΩme back[p].status=0; // OK prΩt back[p].r.statuscode=-1; // erreur strcpy(back[p].r.msg,"Null-size file not recaught"); return 0; } } else { if ((opt->debug>0) && (opt->errlog!=NULL)) { fspc(opt->errlog,"warning"); fprintf(opt->errlog,"HTML file ("LLintP" bytes) retransfered due to lack of cache: %s%s"LF,(LLint)sz,back[p].url_adr,back[p].url_fil); test_flush; } /* Sinon requΩte normale... */ back[p].http11=0; } } } } { ///htsblk r; non directement dans la structure-rΘponse! T_SOC soc; // ouvrir liaison, envoyer requΦte // ne pas traiter ou recevoir l'en tΩte immΘdiatement bzero((char*) &(back[p].r), sizeof(htsblk)); back[p].r.soc=INVALID_SOCKET; back[p].r.location=back[p].location_buffer; // recopier proxy bcopy((char*) &opt->proxy,(char*) &(back[p].r.req.proxy), sizeof(opt->proxy)); // et user-agent strcpy(back[p].r.req.user_agent,opt->user_agent); strcpy(back[p].r.req.lang_iso,opt->lang_iso); back[p].r.req.user_agent_send=opt->user_agent_send; // et http11 back[p].r.req.http11=back[p].http11; // mode ftp, court-circuit! if (strncmp(back[p].url_adr,"ftp://",6)==0) { if (back[p].testmode) { if ((opt->debug>1) && (opt->errlog!=NULL)) { fspc(opt->errlog,"debug"); fprintf(opt->errlog,"error: forbidden test with ftp link for back_add"LF); } return -1; // erreur pas de test permis } if (!(back[p].r.req.proxy.active && opt->ftp_proxy)) { // connexion directe, gΘrΘe en thread back[p].status=1000; // connexion ftp #if USE_BEGINTHREAD launch_ftp(&(back[p])); #else { char nid[32]; sprintf(nid,"htsftp%d-in_progress.lock",p); strcpy(back[p].location_buffer,fconcat(opt->path_log,nid)); } launch_ftp(&(back[p]),back[p].location_buffer,opt->exec); #endif return 0; } } #if HTS_XGETHOST #if HDEBUG printf("back_solve..\n"); #endif back[p].status=101; // tentative de rΘsolution du nom de host soc=INVALID_SOCKET; // pas encore ouverte back_solve(&back[p]); // prΘparer if (host_wait(&back[p])) { // prΩt, par ex fichier ou dispo dans dns #if HDEBUG printf("ok, dns cache ready..\n"); #endif soc=http_xfopen(0,0,0,back[p].send_too,adr,fil,&(back[p].r)); if (soc==INVALID_SOCKET) { back[p].status=0; // fini, erreur } } // #else // #if CNXDEBUG printf("XFopen..\n"); #endif if (strnotempty(back[p].send_too)) // envoyer un if-modified-since #if HTS_XCONN soc=http_xfopen(0,0,0,back[p].send_too,adr,fil,&(back[p].r)); #else soc=http_xfopen(0,0,1,back[p].send_too,adr,fil,&(back[p].r)); #endif else #if HTS_XCONN soc=http_xfopen(test,0,0,NULL,adr,fil,&(back[p].r)); #else soc=http_xfopen(test,0,1,NULL,adr,fil,&(back[p].r)); #endif #endif if (opt->timeout>0) { // gestion du opt->timeout back[p].timeout=opt->timeout; back[p].timeout_refresh=time_local(); } else { back[p].timeout=-1; // pas de gestion (default) } if (opt->rateout>0) { // gestion d'un taux minimum de transfert tolΘrΘ back[p].rateout=opt->rateout; back[p].rateout_time=time_local(); } else { back[p].rateout=-1; // pas de gestion (default) } // Note: on charge les code-page erreurs (erreur 404, etc) dans le cas o∙ cela est // rattrapable (exemple: 301,302 moved xxx -> refresh sur la page!) //if ((back[p].statuscode!=200) || (soc<0)) { // ERREUR HTTP/autre #if CNXDEBUG printf("Xfopen ok, poll..\n"); #endif #if HTS_XGETHOST if (soc!=INVALID_SOCKET) if (back[p].status==101) { // pas d'erreur if (!back[p].r.is_file) back[p].status=100; // connexion en cours else back[p].status=1; // fichier } #else if (soc==INVALID_SOCKET) { // erreur socket back[p].status=0; // FINI //if (back[p].soc!=INVALID_SOCKET) deletehttp(back[p].soc); back[p].r.soc=INVALID_SOCKET; } else { if (!back[p].r.is_file) #if HTS_XCONN back[p].status=100; // connexion en cours #else back[p].status=99; // chargement en tΩte en cours #endif else back[p].status=1; // chargement fichier #if BDEBUG==1 printf("..loading header\n"); #endif } #endif } // note: si il y a erreur (404,etc) status=2 (terminΘ/Θchec) mais // le lien est considΘrΘ comme traitΘ //if (back[p].soc<0) // erreur // return -1; return 0; } else { if ((opt->debug>1) && (opt->errlog!=NULL)) { fspc(opt->errlog,"debug"); fprintf(opt->errlog,"error: no space left in stack for back_add"LF); } return -1; // plus de place } } #if HTS_XGETHOST #if USE_BEGINTHREAD // lancement multithread du robot PTHREAD_TYPE Hostlookup(void* iadr_p) { char iadr[256]; t_dnscache* cache=_hts_cache(); // adresse du cache t_hostent* hp; int error_found=0; // recopier (aprΦs id:pass) #if DEBUGDNS printf("resolv in background: %s\n",jump_identification(iadr_p)); #endif strcpy(iadr,jump_identification(iadr_p)); // couper Θventuel : { char *a; if ( (a=strchr(iadr,':')) ) *a='\0'; } freet(iadr_p); // attendre que le cache dns soit prΩt while(_hts_lockdns(-1)); // attendre libΘration _hts_lockdns(1); // locker while(cache->n) { if (strcmp(cache->iadr,iadr)==0) { error_found=1; } cache=cache->n; // calculer queue } if (strcmp(cache->iadr,iadr)==0) { error_found=1; } if (!error_found) { // en gros copie de hts_gethostbyname sans le return cache->n=(t_dnscache*) calloct(1,sizeof(t_dnscache)); if (cache->n!=NULL) { strcpy(cache->n->iadr,iadr); cache->n->host_length=0; /* pour le moment rien */ cache->n->n=NULL; _hts_lockdns(0); // dΘlocker /* resolve */ #if DEBUGDNS printf("gethostbyname() in progress for %s\n",iadr); #endif hp=gethostbyname(iadr); // rΘsolution IP /* okay, result */ if (hp!=NULL) { bcopy(hp->h_addr,cache->n->host_addr,hp->h_length); // write first cache->n->host_length=hp->h_length; // then write this } else { cache->n->host_addr[0]='\0'; cache->n->host_length=-1; // dΘclarer erreur dans le dns } } else _hts_lockdns(0); // dΘlocker } else { #if DEBUGDNS printf("aborting resolv for %s (found)\n",iadr); #endif _hts_lockdns(0); // dΘlocker } // fin de copie de hts_gethostbyname #if DEBUGDNS printf("quitting resolv for %s (result: %d)\n",iadr,(cache->n!=NULL)?cache->n->host_length:(-999)); #endif return PTHREAD_RETURN; /* _endthread implied */ } #endif // attendre que le host (ou celui du proxy) ait ΘtΘ rΘsolu // si c'est un fichier, la rΘsolution est immΘdiate // idem pour ftp:// void back_solve(lien_back* back) { if ((strcmp(back->url_adr,"file://")) && (strncmp(back->url_adr,"ftp://",6))) { //## if (back->url_adr[0]!=lOCAL_CHAR) { // qq chose α prΘparer char* a; if (!(back->r.req.proxy.active)) a=back->url_adr; else a=back->r.req.proxy.name; if (!hts_dnstest(a)) { // non encore testΘ!.. // inscire en thread #if HTS_WIN // Windows #if USE_BEGINTHREAD { char* p = calloct(strlen(a)+2,1); if (p) { strcpy(p,a); _beginthread( Hostlookup , 0, p ); } } #else /*t_hostent* h=*/ /*hts_gethostbyname(a);*/ // calcul #endif #else #if USE_BEGINTHREAD char* p = calloct(strlen(a)+2,1); if (p) { strcpy(p,a); _beginthread( Hostlookup , 0, p ); } #else // Sous Unix, le gethostbyname() est bloquant.. /*t_hostent* h=*/ /*hts_gethostbyname(a);*/ // calcul #endif #endif } } } // dΘtermine si le host a pu Ωtre rΘsolu int host_wait(lien_back* back) { if ((strcmp(back->url_adr,"file://")) && (strncmp(back->url_adr,"ftp://",6))) { //## if (back->url_adr[0]!=lOCAL_CHAR) { if (!(back->r.req.proxy.active)) { return (hts_dnstest(back->url_adr)); } else { return (hts_dnstest(back->r.req.proxy.name)); } } else return 1; // prΩt, fichier local } #endif // Θlimine les fichiers non html en backing (anticipation) // cleanup non-html files in backing to save backing space // and allow faster "save in cache" operation void back_clean(httrackp* opt,cache_back* cache,lien_back* back,int back_max) { int i; for(i=0;i<back_max;i++) { if (back[i].status == 0) { // ready if (!back[i].testmode) { // not test mode if (strnotempty(back[i].url_sav)) { // filename exists if (back[i].r.is_write) { // not in memory (on disk, ready) if (back[i].r.size>0) { // size>0 if (back[i].r.statuscode==200) { // HTTP "OK" if (!is_hypertext_mime(back[i].r.contenttype)) { // not HTML/hypertext if (!may_be_hypertext_mime(back[i].r.contenttype)) { // may NOT be parseable mime type if (back[i].pass2_ptr) { cache_mayadd(opt,cache,&back[i].r,back[i].url_adr,back[i].url_fil,back[i].url_sav); *back[i].pass2_ptr=-1; // Done! back_delete(back,i); // Delete backing entry HTS_STAT.stat_bytes+=back[i].r.size; HTS_STAT.stat_files++; if ( (!back[i].r.notmodified) && (opt->is_update) ) { HTS_STAT.stat_updated_files++; // page modifiΘe } } } } } } } } } } } } // attente (gestion des buffers des sockets) void back_wait(lien_back* back,int back_max,httrackp* opt,cache_back* cache,double stat_timestart) { int i; T_SOC nfds=INVALID_SOCKET; fd_set fds,fds_c,fds_e; // fds pour lecture, connect (write), et erreur struct timeval tv; int do_wait=0; int gestion_timeout=0; int busy=0; // pas de donnΘes pour le moment #if HTS_ANALYSTE int max_loop=8; // nombre de boucles max α parcourir.. int max_loop_chk=0; #else int max_loop=8; // nombre de boucles max α parcourir.. #endif #if 1 // Cleanup the stack to save space! back_clean(opt,cache,back,back_max); #endif // recevoir tant qu'il y a des donnΘes (avec un maximum de max_loop boucles) do_wait=0; gestion_timeout=0; do { int max_c; busy=0; check_rate(stat_timestart,opt->maxrate); // vΘrifier taux de transfert // inscrire les sockets actuelles, et rechercher l'ID la plus ΘlevΘe FD_ZERO(&fds); FD_ZERO(&fds_c); FD_ZERO(&fds_e); max_c=1; for(i=0;i<back_max;i++) { // en cas de gestion du connect prΘemptif #if HTS_XCONN if (back[i].status==100) { // connexion do_wait=1; // noter socket write FD_SET(back[i].r.soc,&fds_c); // noter socket erreur FD_SET(back[i].r.soc,&fds_e); // calculer max if (max_c) { max_c=0; nfds=back[i].r.soc; } else if (back[i].r.soc>nfds) { // ID socket la plus ΘlevΘe nfds=back[i].r.soc; } } else #endif #if HTS_XGETHOST if (back[i].status==101) { // attente // rien α faire.. } else #endif // poll pour la lecture sur les sockets if ((back[i].status>0) && (back[i].status<100)) { // en rΘception http #if BDEBUG==1 //printf("....socket in progress: %d\n",back[i].r.soc); #endif // non local et non ftp if (strncmp(back[i].url_adr,"file://",7)) { //## if (back[i].url_adr[0]!=lOCAL_CHAR) { // vΘrification de sΘcuritΘ if ((back[i].r.soc!=INVALID_SOCKET) && (!back[i].r.is_file)) { // hey, you never know.. do_wait=1; // noter socket read FD_SET(back[i].r.soc,&fds); // noter socket error FD_SET(back[i].r.soc,&fds_e); // calculer max if (max_c) { max_c=0; nfds=back[i].r.soc; } else if (back[i].r.soc>nfds) { // ID socket la plus ΘlevΘe nfds=back[i].r.soc; } } #if WIDE_DEBUG else { DEBUG_W("PANIC!!! Socket is invalid in a poll test!\n"); } #endif } } } nfds++; if (do_wait) { // attendre // temps d'attente max: 2.5 seconde tv.tv_sec=HTS_SOCK_SEC; tv.tv_usec=HTS_SOCK_MS; #if BDEBUG==1 printf("..select\n"); #endif // poller les sockets-attention au noyau sous Unix.. #if HTS_WIDE_DEBUG DEBUG_W("select\n"); #endif select(nfds,&fds,&fds_c,&fds_e,&tv); #if HTS_WIDE_DEBUG DEBUG_W("select done\n"); #endif } // recevoir les donnΘes arrivΘes for(i=0;i<back_max;i++) { if (back[i].status>0) { if ((back[i].r.soc!=INVALID_SOCKET) && (!back[i].r.is_file)) { // hey, you never know.. int err; // erreur? err=FD_ISSET(back[i].r.soc,&fds_e); if (err) { if (back[i].r.soc!=INVALID_SOCKET) { #if HTS_DEBUG_CLOSESOCK DEBUG_W("back_wait: deletehttp\n"); #endif deletehttp(&back[i].r); } back[i].r.soc=INVALID_SOCKET; back[i].r.statuscode=-4; if (back[i].status==100) strcpy(back[i].r.msg,"Connect Error"); else strcpy(back[i].r.msg,"Receive Error"); back[i].status=0; // terminΘ } } } // ---- FLAG WRITE MIS A UN?: POUR LE CONNECT if (back[i].status==100) { // attendre connect int dispo=0; // vΘrifier l'existance de timeout-check if (!gestion_timeout) if (back[i].timeout>0) gestion_timeout=1; // connectΘ? dispo=FD_ISSET(back[i].r.soc,&fds_c); if (dispo) { // ok busy=1; #if BDEBUG==1 printf("..connect ok on socket %d\n",back[i].r.soc); #endif /* limit nb. connections/seconds to avoid server overload */ if (opt->maxconn>0) { Sleep(1000/opt->maxconn); } if (back[i].timeout>0) { // refresh timeout si besoin est back[i].timeout_refresh=time_local(); } if (back[i].rateout>0) { // le taux de transfert de base sur le dΘbut de la connexion back[i].rateout_time=time_local(); } // envoyer header //if (strcmp(back[i].url_sav,BACK_ADD_TEST)!=0) // vrai get if (!back[i].head_request) http_sendhead(opt->cookie,0,back[i].send_too,back[i].url_adr,back[i].url_fil,back[i].referer_adr,back[i].referer_fil,&back[i].r); else if (back[i].head_request==2) // test en GET! http_sendhead(opt->cookie,0,back[i].send_too,back[i].url_adr,back[i].url_fil,back[i].referer_adr,back[i].referer_fil,&back[i].r); else // test! http_sendhead(opt->cookie,1,back[i].send_too,back[i].url_adr,back[i].url_fil,back[i].referer_adr,back[i].referer_fil,&back[i].r); back[i].status=99; // attendre en tΩte maintenant } // attente gethostbyname } #if HTS_XGETHOST else if (back[i].status==101) { // attendre gethostbyname #if DEBUGDNS //printf("status 101 for %s\n",back[i].url_adr); #endif if (!gestion_timeout) if (back[i].timeout>0) gestion_timeout=1; if (host_wait(&back[i])) { // prΩt back[i].status=100; // attente connexion if (back[i].timeout>0) { // refresh timeout si besoin est back[i].timeout_refresh=time_local(); } if (back[i].rateout>0) { // le taux de transfert de base sur le dΘbut de la connexion back[i].rateout_time=time_local(); } back[i].r.soc=http_xfopen(0,0,0,back[i].send_too,back[i].url_adr,back[i].url_fil,&(back[i].r)); if (back[i].r.soc==INVALID_SOCKET) { back[i].status=0; // fini, erreur if (back[i].r.soc!=INVALID_SOCKET) { #if HTS_DEBUG_CLOSESOCK DEBUG_W("back_wait(2): deletehttp\n"); #endif deletehttp(&back[i].r); } back[i].r.soc=INVALID_SOCKET; back[i].r.statuscode=-5; if (strnotempty(back[i].r.msg)==0) strcpy(back[i].r.msg,"Unable to establish host name"); } } // ---- FLAG READ MIS A UN?: POUR LA RECEPTION } #endif #if USE_BEGINTHREAD // ..rien α faire, c'est magic les threads #else else if (back[i].status==1000) { // en rΘception ftp if (!fexist(back[i].location_buffer)) { // terminΘ FILE* fp; fp=fopen(fconcat(back[i].location_buffer,".ok"),"rb"); if (fp) { int j=0; fscanf(fp,"%d ",&(back[i].r.statuscode)); while(!feof(fp)) { int c = fgetc(fp); if (c!=EOF) back[i].r.msg[j++]=c; } back[i].r.msg[j++]='\0'; fclose(fp); remove(fconcat(back[i].location_buffer,".ok")); strcpy(fconcat(back[i].location_buffer,".ok"),""); } else { strcpy(back[i].r.msg,"Unknown ftp result, check if file is ok"); back[i].r.statuscode=-1; } back[i].status=0; } } #endif else if ((back[i].status>0) && (back[i].status<1000)) { // en rΘception http int dispo=0; // vΘrifier l'existance de timeout-check if (!gestion_timeout) if (back[i].timeout>0) gestion_timeout=1; // donnΘes dispo? //## if (back[i].url_adr[0]!=lOCAL_CHAR) if (strcmp(back[i].url_adr,"file://")) dispo=FD_ISSET(back[i].r.soc,&fds); else dispo=1; if (dispo) { // donnΘes dispo LLint retour_fread; busy=1; // on rΘcupΦre encore #if BDEBUG==1 printf("..data available on socket %d\n",back[i].r.soc); #endif // Various hacks to limit re-transfers when updating a mirror if (opt->sizehack) { // We have request for a partial file (with a 'Range: NNN-' header) // and received a complete file notification (200), with 'Content-length: NNN' // it might be possible that we had the complete file // this is the case in *most* cases, so break the connection if (back[i].r.is_write==0) { // mode mΘmoire if (back[i].r.adr==NULL) { // rien n'a ΘtΘ Θcrit if (!back[i].testmode) { // pas mode test if (strnotempty(back[i].url_sav)) { if (strcmp(back[i].url_fil,"/robots.txt")) { if (back[i].r.statuscode==200) { // 'OK' if (!is_hypertext_mime(back[i].r.contenttype)) { // pas HTML if (back[i].r.statuscode==200) { // "OK" if (back[i].range_req_size>0) { // but Range: requested if (back[i].range_req_size == back[i].r.totalsize) { // And same size #if HTS_DEBUG_CLOSESOCK DEBUG_W("back_wait(skip_range): deletehttp\n"); #endif deletehttp(&back[i].r); back[i].r.soc=INVALID_SOCKET; back[i].status=0; // READY back[i].r.size=back[i].r.totalsize; filenote(back[i].url_sav,NULL); // back[i].r.statuscode=304; // NOT MODIFIED if ((opt->debug>1) && (opt->log!=NULL)) { fspc(opt->log,"debug"); fprintf(opt->log,"File seems complete (reget failed), breaking connection: %s%s"LF,back[i].url_adr,back[i].url_fil); test_flush; } } } } } } } } } } } } // END - Various hacks to limit re-transfers when updating a mirror #if HTS_DIRECTDISK // Court-circuit: // Peut-on stocker le fichier directement sur disque? // Ahh que ca serait vachement mieux et que ahh que la mΘmoire vous dit merci! if (back[i].status) { if (back[i].r.is_write==0) { // mode mΘmoire if (back[i].r.adr==NULL) { // rien n'a ΘtΘ Θcrit if (!back[i].testmode) { // pas mode test if (strnotempty(back[i].url_sav)) { if (strcmp(back[i].url_fil,"/robots.txt")) { if (back[i].r.statuscode==200) { // 'OK' if (!is_hypertext_mime(back[i].r.contenttype)) { // pas HTML if (opt->getmode&2) { // on peut ecrire des non html back[i].r.is_write=1; // Θcrire back[i].r.out=filecreate(back[i].url_sav); #if HDEBUG printf("direct-disk: %s\n",back[i].url_sav); #endif if ((opt->debug>1) && (opt->log!=NULL)) { fspc(opt->log,"debug"); fprintf(opt->log,"File received from net to disk: %s%s"LF,back[i].url_adr,back[i].url_fil); test_flush; } if (back[i].r.out==NULL) { back[i].r.is_write=0; // erreur, abandonner #if HDEBUG printf("..error!\n"); #endif } #if HTS_WIN==0 else chmod(back[i].url_sav,HTS_ACCESS_FILE); #endif } else { // on coupe tout! if ((opt->debug>1) && (opt->log!=NULL)) { fspc(opt->log,"debug"); fprintf(opt->log,"File cancelled (non HTML): %s%s"LF,back[i].url_adr,back[i].url_fil); test_flush; } back[i].status=0; // terminΘ if (!back[i].testmode) back[i].r.statuscode=-10; // EUHH CANCEL else back[i].r.statuscode=-10; // "TEST OK" if (back[i].r.soc!=INVALID_SOCKET) { #if HTS_DEBUG_CLOSESOCK DEBUG_W("back_wait(3): deletehttp\n"); #endif deletehttp(&back[i].r); } back[i].r.soc=INVALID_SOCKET; } } } } } } } } } #endif // rΘception de donnΘes depuis socket ou fichier if (back[i].status) { if (back[i].status==99) // recevoir caractΦre par caractΦre retour_fread=http_xfread1(&(back[i].r),0); else if (back[i].status==98) { // recevoir longueur chunk en hexa caractΦre par caractΦre // backuper pour lire dans le buffer chunk htsblk r; bcopy((char*) &(back[i].r), (char*) &r, sizeof(htsblk)); back[i].r.is_write=0; // mΘmoire back[i].r.adr=back[i].chunk_adr; // adresse back[i].r.size=back[i].chunk_size; // taille taille chunk back[i].r.totalsize=-1; // total inconnu back[i].r.out=NULL; back[i].r.is_file=0; // retour_fread=http_xfread1(&(back[i].r),0); // modifier et restaurer back[i].chunk_adr=back[i].r.adr; // adresse back[i].chunk_size=back[i].r.size; // taille taille chunk bcopy((char*) &r, (char*) &(back[i].r), sizeof(htsblk)); // restaurer vΘritable r } else if (back[i].is_chunk) { // attention chunk, limiter taille α lire #if CHUNKDEBUG==1 printf("read %d bytes\n",(int)min(back[i].r.totalsize-back[i].r.size,TAILLE_BUFFER)); #endif retour_fread=http_xfread1(&(back[i].r),(int)min(back[i].r.totalsize-back[i].r.size,TAILLE_BUFFER)); } else retour_fread=http_fread1(&(back[i].r)); } else retour_fread=-1; // interruption ou annulation interne (peut ne pas Ωtre une erreur) // Si rΘception chunk, tester si on est pas α la fin! if (back[i].status==1) { if (back[i].is_chunk) { // attendre prochain chunk if (back[i].r.size==back[i].r.totalsize) { // fin chunk! //printf("chunk end at %d\n",back[i].r.size); back[i].status=98; // prochain chunk if (back[i].chunk_adr!=NULL) { freet(back[i].chunk_adr); back[i].chunk_adr=NULL; } back[i].chunk_size=0; retour_fread=0; // pas d'erreur #if CHUNKDEBUG==1 printf("waiting for next chunk header (soc %d)..\n",back[i].r.soc); #endif } } } if (retour_fread==-1) { // erreur rΘception back[i].status=0; // terminΘ if (back[i].r.soc!=INVALID_SOCKET) { #if HTS_DEBUG_CLOSESOCK DEBUG_W("back_wait(4): deletehttp\n"); #endif deletehttp(&back[i].r); } back[i].r.soc=INVALID_SOCKET; #if CHUNKDEBUG==1 if (back[i].is_chunk) printf("must be the last chunk for %s (connection closed) - %d/%d\n",back[i].url_fil,back[i].r.size,back[i].r.totalsize); #endif //if ((back[i].r.statuscode==-1) && (strnotempty(back[i].r.msg)==0)) { if ((back[i].r.statuscode<0) && (strnotempty(back[i].r.msg)==0)) { #if HDEBUG printf("error interruped: %s\n",back[i].r.adr); #endif if (back[i].r.size>0) strcat(back[i].r.msg,"Interrupted transfer"); else strcat(back[i].r.msg,"No data (connection closed)"); back[i].r.statuscode=-4; } if (back[i].r.totalsize>0) { // tester totalsize //if ((back[i].r.totalsize>0) && (back[i].status==99)) { // tester totalsize if (back[i].r.totalsize!=back[i].r.size) { // pas la mΩme! if (!opt->tolerant) { //#if HTS_CL_IS_FATAL if (back[i].r.adr) freet(back[i].r.adr); back[i].r.adr=NULL; if (back[i].r.size<back[i].r.totalsize) back[i].r.statuscode=-4; // recatch sprintf(back[i].r.msg,"Incorrect length ("LLintP" Bytes, "LLintP" expected)",back[i].r.size,back[i].r.totalsize); } else { //#else // Un warning suffira.. if (cache->errlog!=NULL) { fspc(cache->errlog,"warning"); fprintf(cache->errlog,"Incorrect length ("LLintP"!="LLintP" expected) for %s%s"LF,back[i].r.size,back[i].r.totalsize,back[i].url_adr,back[i].url_fil); } //#endif } } } #if BDEBUG==1 printf("transfer ok\n"); #endif } else { // pas d'erreur de rΘception if (back[i].timeout>0) { // refresh timeout si besoin est back[i].timeout_refresh=time_local(); } // Traitement des en tΩtes chunks ou en tΩtes if (back[i].status==98) { // rΘception taille chunk en hexa ( aprΦs les en tΩtes, peut ne pas if (back[i].chunk_size>=2) { int chunk_size=-1; // Ωtre prΘsent) if (back[i].chunk_adr[back[i].chunk_size-1]==10) { // LF, fin ligne chunk char chunk_data[64]; if (back[i].chunk_size<32) { // pas trop gros back[i].chunk_adr[ back[i].chunk_size-1]='\0'; // octet nul strcpy(chunk_data,""); // hex number strcat(chunk_data,back[i].chunk_adr); #if CHUNKDEBUG==1 printf("chunk received and read: %s\n",chunk_data); #endif if (back[i].r.totalsize<0) back[i].r.totalsize=0; // initialiser α 0 if (sscanf(chunk_data,"%x",&chunk_size) == 1) { back[i].r.totalsize+=chunk_size; // noter taille back[i].r.adr=(char*) realloct(back[i].r.adr,(INTsys) back[i].r.totalsize + 1); if (!back[i].r.adr) { if (cache->errlog!=NULL) { fprintf(cache->errlog,"Error: Not enough memory ("LLintP") for %s%s"LF,back[i].r.totalsize,back[i].url_adr,back[i].url_fil); } } #if CHUNKDEBUG==1 printf("chunk length: %d - next total "LLintP":\n",chunk_size,back[i].r.totalsize); #endif } else if (cache->errlog!=NULL) { fprintf(cache->errlog,"Warning: Illegal chunk (%s) for %s%s"LF,back[i].chunk_adr,back[i].url_adr,back[i].url_fil); } } else { if (cache->errlog!=NULL) { fprintf(cache->errlog,"Warning: Chunk too big ("LLintP") for %s%s"LF,back[i].chunk_size,back[i].url_adr,back[i].url_fil); } } // ok, continuer sur le body // si chunk non nul continuer (ou commencer) if (chunk_size>0) { back[i].status=1; // continuer body #if CHUNKDEBUG==1 printf("waiting for body (chunk)\n"); #endif } else { // chunk nul, c'est la fin #if CHUNKDEBUG==1 printf("chunk end, total: %d\n",back[i].r.size); #endif back[i].status=0; // fin if (back[i].r.soc!=INVALID_SOCKET) { #if HTS_DEBUG_CLOSESOCK DEBUG_W("back_wait(5): deletehttp\n"); #endif deletehttp(&back[i].r); back[i].r.soc=INVALID_SOCKET; /* Tester totalsize en fin de chunk */ if ((back[i].r.totalsize>0)) { // tester totalsize if (back[i].r.totalsize!=back[i].r.size) { // pas la mΩme! #if HTS_CL_IS_FATAL if (back[i].r.adr) { freet(back[i].r.adr); back[i].r.adr=NULL; } back[i].r.statuscode=-1; strcpy(back[i].r.msg,"Incorrect length"); #else // Un warning suffira.. if (cache->errlog!=NULL) { fspc(cache->errlog,"warning"); fprintf(cache->errlog,"Incorrect length ("LLintP"!="LLintP" expected) for %s%s"LF,back[i].r.size,back[i].r.totalsize,back[i].url_adr,back[i].url_fil); } #endif } } } } // effacer buffer (chunk en tete) if (back[i].chunk_adr!=NULL) { freet(back[i].chunk_adr); back[i].chunk_adr=NULL; back[i].chunk_size=0; } } // chunk LF? } // taille buffer chunk>2 // } else if (back[i].status==99) { // en tΩtes (avant le chunk si il est prΘsent) // if (back[i].r.size>=2) { if ((back[i].r.adr[back[i].r.size-1]==10) && (back[i].r.adr[back[i].r.size-2]==10)) { char rcvd[2048]; int ptr=0; #if BDEBUG==1 printf("..ok, header received\n"); #endif // ---------------------------------------- // traiter en-tΩte! // status-line α rΘcupΘrer ptr+=binput(back[i].r.adr+ptr,rcvd,2000); if (strnotempty(rcvd)==0) ptr+=binput(back[i].r.adr+ptr,rcvd,2000); // "certains serveurs buggΘs envoient un \n au dΘbut" (RFC) // traiter status-line treatfirstline(&back[i].r,rcvd); #if HDEBUG printf("(Buffer) Status-Code=%d\n",back[i].r.statuscode); #endif if (_DEBUG_HEAD) { if (ioinfo) { fprintf(ioinfo,"\r\nresponse for %s%s:\r\n",back[i].url_adr,back[i].url_fil); fprintf(ioinfo,"(Buffer) Status-Code=%d\r\n",back[i].r.statuscode); fflush(ioinfo); } // en-tΩte } // header // ** !attention! HTTP/0.9 non supportΘ do { ptr+=binput(back[i].r.adr+ptr,rcvd,2000); #if HDEBUG printf("(buffer)>%s\n",rcvd); #endif if (_DEBUG_HEAD) { if (ioinfo) { fprintf(ioinfo,"(buffer)>%s\r\n",rcvd); fflush(ioinfo); } } if (strnotempty(rcvd)) treathead(opt->cookie,back[i].url_adr,back[i].url_fil,&back[i].r,rcvd); // traiter // parfois les serveurs buggΘs renvoient un content-range avec un 200 if (back[i].r.statuscode==200) // 'OK' if (strfield(rcvd,"content-range:")) // Avec un content-range: relisez les RFC.. back[i].r.statuscode=206; // FORCER A 206 !!!!! } while(strnotempty(rcvd)); // ---------------------------------------- // libΘrer mΘmoire -- aprΦs! -- if (back[i].r.adr!=NULL) { freet(back[i].r.adr); back[i].r.adr=NULL; } /* Status code and header-response hacks */ // Check response : 203 == 200 if (back[i].r.statuscode==203) { // 'Non-Authoritative Information' back[i].r.statuscode=200; // forcer "OK" } // Various hacks to limit re-transfers when updating a mirror if (opt->sizehack) { // We already have the file // and ask the remote server for an update // Some servers, especially dynamic pages severs, always // answer that the page has been modified since last visit // And answer with a 200 (OK) response, and the same page // If the size is the same, and the option has been set, we assume // that the file is identical - and therefore let's break the connection if (back[i].is_update) { // mise α jour if (back[i].r.statuscode==200) { // 'OK' htsblk r = cache_read(opt,cache,back[i].url_adr,back[i].url_fil,NULL); // lire entrΘe cache if (r.statuscode == 200) { // OK pas d'erreur cache LLint len1,len2; len1=r.totalsize; len2=back[i].r.totalsize; if (r.size>0) len1=r.size; if (len1>0) { if (len1 == len2) { // tailles identiques back[i].r.statuscode=304; // forcer NOT MODIFIED deletehttp(&back[i].r); back[i].r.soc=INVALID_SOCKET; if ((opt->debug>1) && (opt->log!=NULL)) { fspc(opt->log,"debug"); fprintf(opt->log,"File seems complete (same size), breaking connection: %s%s"LF,back[i].url_adr,back[i].url_fil); test_flush; } } } } else { if (opt->errlog!=NULL) { fspc(opt->errlog,"warning"); fprintf(opt->errlog,"File seems complete (same size), but there was a cache read error: %s%s"LF,back[i].url_adr,back[i].url_fil); test_flush; } } } } } /* End of status code and header-response hacks */ /* Interdiction taille par le wizard? */ if (back[i].r.soc!=INVALID_SOCKET) { if (!back_checksize(opt,&back[i],1)) { back[i].status=0; // FINI deletehttp(&back[i].r); back[i].r.soc=INVALID_SOCKET; if (!back[i].testmode) strcpy(back[i].r.msg,"File too big"); else strcpy(back[i].r.msg,"Test: File too big"); } } /* sinon, continuer */ /* if (back[i].r.soc!=INVALID_SOCKET) { // ok rΘcupΘrer body? */ // head: terminΘ if (back[i].head_request) { if ((opt->debug>1) && (opt->log!=NULL)) { fspc(opt->log,"debug"); fprintf(opt->log,"Tested file: %s%s"LF,back[i].url_adr,back[i].url_fil); test_flush; } #if HTS_DEBUG_CLOSESOCK DEBUG_W("back_wait(head request): deletehttp\n"); #endif // Couper connexion deletehttp(&back[i].r); back[i].r.soc=INVALID_SOCKET; back[i].status=0; // terminΘ } // traiter une Θventuelle erreur 304 (cache α jour utilisable) else if (back[i].r.statuscode==304) { // document α jour dans le cache // lire dans le cache // ** NOTE: pas de vΘrif de la taille ici!! #if HTS_DEBUG_CLOSESOCK DEBUG_W("back_wait(file is not modified): deletehttp\n"); #endif deletehttp(&back[i].r); back[i].r.soc=INVALID_SOCKET; back[i].r=cache_read(opt,cache,back[i].url_adr,back[i].url_fil,back[i].url_sav); if (!back[i].r.location) back[i].r.location=back[i].location_buffer; else { /* recopier */ strcpy(back[i].location_buffer,back[i].r.location); back[i].r.location=back[i].location_buffer; } if (back[i].r.statuscode!=-1) { // pas d'erreur de lecture back[i].status=0; // OK prΩt back[i].r.notmodified=1; // NON modifiΘ! if ((opt->debug>0) && (opt->log!=NULL)) { fspc(opt->log,"debug"); fprintf(opt->log,"File loaded after test from cache: %s%s"LF,back[i].url_adr,back[i].url_fil); test_flush; } #if DEBUGCA printf("..document α jour aprΦs requΦte: %s%s\n",back[i].url_adr,back[i].url_fil); #endif //printf(">%s status %d\n",back[p].r.contenttype,back[p].r.statuscode); } else { // erreur back[i].status=0; // terminΘ //printf("erreur cache\n"); } } else if ((back[i].r.statuscode==301) || (back[i].r.statuscode==302) || (back[i].r.statuscode==303) || (back[i].r.statuscode==307) || (back[i].r.statuscode==412) || (back[i].r.statuscode==416) ) { // Ne pas prendre le html, erreurs connues et gΘrΘes #if HTS_DEBUG_CLOSESOCK DEBUG_W("back_wait(301,302,303,307,412,416..): deletehttp\n"); #endif // Couper connexion deletehttp(&back[i].r); back[i].r.soc=INVALID_SOCKET; back[i].status=0; // terminΘ } else { // il faut aller le chercher // effacer buffer (requΦte) if (back[i].r.adr!=NULL) { freet(back[i].r.adr); back[i].r.adr=NULL; } back[i].r.size=0; // traiter 206 (partial content) // xxc SI CHUNK VERIFIER QUE CA MARCHE?? if (back[i].r.statuscode==206) { // on nous envoie un morceau (la fin) coz une partie sur disque! LLint sz=fsize(back[i].url_sav); #if HDEBUG printf("partial content: "LLintP" on disk..\n",(LLint)sz); #endif if (sz>=0) { if (!is_hypertext_mime(back[i].r.contenttype)) { // pas HTML if (opt->getmode&2) { // on peut ecrire des non html **sinon ben euhh sera interceptΘ plus loin, donc rap sur ce qui va sortir** filenote(back[i].url_sav,NULL); // noter fichier comme connu back[i].r.out=fopen(fconv(back[i].url_sav),"ab"); // append if (back[i].r.out) { back[i].r.is_write=1; // Θcrire back[i].r.size=sz; // dΘja Θcrit back[i].r.statuscode=200; // Forcer 'OK' if (back[i].r.totalsize>0) back[i].r.totalsize+=sz; // plus en fait fseek(back[i].r.out,0,SEEK_END); // α la fin #if HDEBUG printf("continue interrupted file\n"); #endif } else { // On est dans la m** back[i].status=0; // terminΘ (voir plus loin) strcpy(back[i].r.msg,"Can not open partial file"); } } } else { // mΘmoire FILE* fp=fopen(fconv(back[i].url_sav),"rb"); if (fp) { LLint alloc_mem=sz + 1; if (back[i].r.totalsize>0) alloc_mem+=back[i].r.totalsize; // AJOUTER RESTANT! if ( (back[i].r.adr=(char*) malloct((INTsys) alloc_mem)) ) { back[i].r.size=sz; if (back[i].r.totalsize>0) back[i].r.totalsize+=sz; // plus en fait if (((int) fread(back[i].r.adr,1,(INTsys)sz,fp)) != sz) { back[i].status=0; // terminΘ (voir plus loin) strcpy(back[i].r.msg,"Can not read partial file"); } else { back[i].r.statuscode=200; // Forcer 'OK' #if HDEBUG printf("continue in mem interrupted file\n"); #endif } } else { back[i].status=0; // terminΘ (voir plus loin) strcpy(back[i].r.msg,"No memory for partial file"); } } else { // Argh.. back[i].status=0; // terminΘ (voir plus loin) strcpy(back[i].r.msg,"Can not open partial file"); } } } else { // Non trouvΘ?? back[i].status=0; // terminΘ (voir plus loin) strcpy(back[i].r.msg,"Can not find partial file"); } // Erreur? if (back[i].status==0) { if (back[i].r.soc!=INVALID_SOCKET) { #if HTS_DEBUG_CLOSESOCK DEBUG_W("back_wait(206 solve problems): deletehttp\n"); #endif deletehttp(&back[i].r); } back[i].r.soc=INVALID_SOCKET; //back[i].r.statuscode=206; ???????? back[i].r.statuscode=-5; if (strnotempty(back[i].r.msg)) strcpy(back[i].r.msg,"Error attempting to solve status 206 (partial file)"); } } if (back[i].status!=0) { // non terminΘ (erreur) if (!back[i].testmode) { // fichier normal if (!back[i].r.is_chunk) { // pas de chunk //if (back[i].r.http11!=2) { // pas de chunk back[i].is_chunk=0; back[i].status=1; // start body } else { #if CHUNKDEBUG==1 printf("chunk encoding detected %s..\n",back[i].url_fil); #endif back[i].is_chunk=1; back[i].chunk_adr=NULL; back[i].chunk_size=0; back[i].status=98; // start body wait chunk } if (back[i].rateout>0) { back[i].rateout_time=time_local(); // refresh pour transfer rate } #if HDEBUG printf("(buffer) start body!\n"); #endif } else { // mode test, ne pas passer en 1!! back[i].status=0; // READY #if HTS_DEBUG_CLOSESOCK DEBUG_W("back_wait(test ok): deletehttp\n"); #endif deletehttp(&back[i].r); back[i].r.soc=INVALID_SOCKET; if (back[i].r.statuscode==200) { strcpy(back[i].r.msg,"Test: OK"); back[i].r.statuscode=-10; // test rΘussi } else { // test a ΘchouΘ, on ne change rien sauf que l'erreur est α titre indicatif char tempo[1000]; strcpy(tempo,back[i].r.msg); strcpy(back[i].r.msg,"Test: "); strcat(back[i].r.msg,tempo); } } } } /*}*/ } // si LF } // r.size>2 } // si == 99 } // si pas d'erreurs #if BDEBUG==1 printf("bytes overall: %d\n",back[i].r.size); #endif } // donnΘes dispo // en cas d'erreur cl, supprimer Θventuel fichier sur disque #if HTS_REMOVE_BAD_FILES if (back[i].status<0) { if (!back[i].testmode) { // pas en test remove(back[i].url_sav); // Θliminer fichier (endommagΘ) //printf("&& %s\n",back[i].url_sav); } } #endif /* funny log for commandline users */ if (!opt->quiet) { // petite animation if (opt->verbosedisplay) { if (back[i].status==0) { if (back[i].r.statuscode==200) printf("* %s%s ("LLintP" bytes) - OK\33[K\r",back[i].url_adr,back[i].url_fil,back[i].r.size); else printf("* %s%s ("LLintP" bytes) - %d\33[K\r",back[i].url_adr,back[i].url_fil,back[i].r.size,back[i].r.statuscode); fflush(stdout); } } } } // status>0 } // for // vΘrifier timeouts if (gestion_timeout) { double act; act=time_local(); // temps en secondes for(i=0;i<back_max;i++) { if (back[i].status>0) { // rΘception/connexion/.. if (back[i].timeout>0) { //printf("time check %d\n",((int) (act-back[i].timeout_refresh))-back[i].timeout); if (((int) (act-back[i].timeout_refresh))>=back[i].timeout) { if (back[i].r.soc!=INVALID_SOCKET) { #if HTS_DEBUG_CLOSESOCK DEBUG_W("back_wait(timeout): deletehttp\n"); #endif deletehttp(&back[i].r); } back[i].r.soc=INVALID_SOCKET; back[i].r.statuscode=-2; if (back[i].status==100) strcpy(back[i].r.msg,"Connect Time Out"); else if (back[i].status==101) strcpy(back[i].r.msg,"DNS Time Out"); else strcpy(back[i].r.msg,"Receive Time Out"); back[i].status=0; // terminΘ } else if ((back[i].rateout>0) && (back[i].status<99)) { if (((int) (act-back[i].rateout_time))>=HTS_WATCHRATE) { // checker au bout de 15s if ( (int) ((back[i].r.size)/(act-back[i].rateout_time)) < back[i].rateout ) { // trop lent back[i].status=0; // terminΘ if (back[i].r.soc!=INVALID_SOCKET) { #if HTS_DEBUG_CLOSESOCK DEBUG_W("back_wait(rateout): deletehttp\n"); #endif deletehttp(&back[i].r); } back[i].r.soc=INVALID_SOCKET; back[i].r.statuscode=-3; strcpy(back[i].r.msg,"Transfer Rate Too Low"); } } } } } } } max_loop--; #if HTS_ANALYSTE==2 max_loop_chk++; #endif } while((busy) && (max_loop>0)); #if HTS_ANALYSTE==2 if (!busy) { if (max_loop_chk>=1) { Sleep(10); // un tite pause pour Θviter les lag.. } } #endif } int back_checksize(httrackp* opt,lien_back* eback,int check_only_totalsize) { LLint size_to_test; if (check_only_totalsize) size_to_test=eback->r.totalsize; else size_to_test=max(eback->r.totalsize,eback->r.size); if (size_to_test>=0) { /* Interdiction taille par le wizard? */ if (hts_testlinksize(opt,eback->url_adr,eback->url_fil,(eback->r.totalsize+1023)/1024)==-1) { return 0; /* interdit */ } /* vΘrifier taille classique (heml et non html) */ if ((istoobig(size_to_test,eback->maxfile_html,eback->maxfile_nonhtml,eback->r.contenttype))) { return 0; /* interdit */ } } return 1; } // octets transfΘrΘs + add LLint back_transfered(LLint nb,lien_back* back,int back_max) { int i; // ajouter octets en instance for(i=0;i<back_max;i++) if ((back[i].status>0) && (back[i].status<99)) nb+=back[i].r.size; return nb; } // infos backing // j: 1 afficher sockets 2 afficher autres 3 tout afficher void back_info(lien_back* back,int i,int j,FILE* fp) { if (back[i].status>=0) { char s[256]; s[0]='\0'; back_infostr(back,i,j,s); strcat(s,LF); fprintf(fp,"%s",s); } } // infos backing // j: 1 afficher sockets 2 afficher autres 3 tout afficher void back_infostr(lien_back* back,int i,int j,char* s) { if (back[i].status>=0) { int aff=0; if (j & 1) { if (back[i].status==100) { strcat(s,"CONNECT "); } else if (back[i].status==99) { strcat(s,"INFOS "); aff=1; } else if (back[i].status==98) { strcat(s,"INFOSC"); // infos chunk aff=1; } else if (back[i].status>0) { #if HTS_ANALYSTE==2 strcat(s,"WAIT "); #else strcat(s,"RECEIVE "); #endif aff=1; } } if (j & 2) { if (back[i].status==0) { switch (back[i].r.statuscode) { case 200: strcat(s,"READY "); aff=1; break; #if HTS_ANALYSTE==2 default: strcat(s,"ERROR "); break; #else case -1: strcat(s,"ERROR "); aff=1; break; case -2: strcat(s,"TIMEOUT "); aff=1; break; case -3: strcat(s,"TOOSLOW "); aff=1; break; case 400: strcat(s,"BADREQUEST "); aff=1; break; case 401: case 403: strcat(s,"FORBIDDEN "); aff=1; break; case 404: strcat(s,"NOT FOUND "); aff=1; break; case 500: strcat(s,"SERVERROR "); aff=1; break; default: { char s2[256]; sprintf(s2,"ERROR(%d)",back[i].r.statuscode); strcat(s,s2); } aff=1; #endif } } } if (aff) { { char s2[256]; sprintf(s2,"\"%s",back[i].url_adr); strcat(s,s2); if (back[i].url_fil[0]!='/') strcat(s,"/"); sprintf(s2,"%s\" ",back[i].url_fil); strcat(s,s2); sprintf(s,LLintP" "LLintP" ",back[i].r.size,back[i].r.totalsize); strcat(s,s2); } } } } // -- backing -- #undef test_flush