/* $LynxId: LYSession.c,v 1.3 2008/01/12 01:32:08 tom Exp $ */ #include #include #include #include #include #include #include #ifdef USE_SESSIONS /* Example of how a session file may look: */ /* # lynx session * / files * / hereby * / reduce * g file://localhost/COPYRIGHT * g http://lynx.isc.org * h 1 -1 file://localhost/COPYRIGHT Entry into main screen * h 1 0 LYNXCACHE:/ Cache Jar * h 1 16 file://localhost/usr/local/share/lynx_help/Lynx_users_guide.html#Cache Lynx Users Guide v2.8.6 * h 1 -1 file://localhost/COPYRIGHT Entry into main screen * h 1 2 file://localhost/tmp/lynxmSefvcbXes/L12110-6407TMP.html#current Visited Links Page * h 1 -1 file://localhost/COPYRIGHT Entry into main screen * h 1 -1 LYNXMESSAGES:/ Your recent statusline messages * V 0 file://localhost/COPYRIGHT Entry into main screen * V 3 file://localhost/usr/local/share/lynx_help/Lynx_users_guide.html#Bookmarks Lynx Users Guide v2.8.6 */ static char *get_filename(char *given_name) { char *actual_filename = given_name; /* * If the specific "-sessionin" or "-sessionout" value is not given, * try the "-session" value (if the AUTO_SESSION configuration is set). * Finally try the SESSION_FILE configuration value. */ if (isEmpty(actual_filename)) { actual_filename = session_file; if (isEmpty(actual_filename)) { if (LYAutoSession) { actual_filename = LYSessionFile; } } } return actual_filename; } /* Restore session from file, pretty slow, but it should be fine * for everyday, normal use. */ BOOLEAN RestoreSession(void) { int code; char *my_filename = get_filename(sessionin_file); FILE *fp; char *buffer = 0; DocInfo doc; VisitedLink *vl; int i = 0; short errors = 10; /* how much syntax errors are allowed in session file before abort. */ char *value1, *value2, *line, *linktext, *level; /* * This should be done only once, here: iff USE_SESSIONS is defined or: * in mainloop(), otherwise history entries are lost */ nhist = 0; if (my_filename == NULL) { /* nothing to do, so exit */ return (TRUE); } CTRACE((tfp, "RestoreSession %s\n", my_filename)); SetDefaultMode(O_TEXT); if ((fp = fopen(my_filename, TXT_R)) != NULL) { code = TRUE; /* * This should be safe, entries are added to lynx until memory i * exhausteds */ while (LYSafeGets(&buffer, fp) != 0) { LYTrimNewline(buffer); if (*buffer == '/') { #ifdef SEARCH_OUT_SESSION if ((value1 = strchr(buffer, ' ')) == 0) { continue; } else { value1++; HTAddSearchQuery(value1); } #endif /* SEARCH_OUT_SESSION */ } else if (*buffer == 'g') { #ifdef GOTOURL_OUT_SESSION if ((value1 = strchr(buffer, ' ')) == 0) continue; else { value1++; HTAddGotoURL(value1); } #endif /* GOTOURL_OUT_SESSION */ } else if (*buffer == 'h') { #ifdef HISTORY_OUT_SESSION if ((line = strchr(buffer, ' ')) == 0) continue; else { line++; if ((linktext = strchr(line, ' ')) == 0) continue; else *linktext++ = 0; if ((value1 = strchr(linktext, ' ')) == 0) continue; else *value1++ = 0; if ((value2 = strchr(value1, '\t')) != 0) { *value2++ = 0; doc.line = atoi(line); doc.link = atoi(linktext); StrAllocCopy(doc.address, value1); StrAllocCopy(doc.title, value2); LYpush(&doc, TRUE); } } #endif /* HISTORY_OUT_SESSION */ } else if (*buffer == 'V') { #ifdef VLINK_OUT_SESSION if ((level = strchr(buffer, ' ')) == 0) continue; else { level++; if ((value1 = strchr(level, ' ')) == 0) continue; else *value1++ = 0; if ((value2 = strchr(value1, '\t')) != 0) { *value2++ = 0; StrAllocCopy(doc.address, value1); StrAllocCopy(doc.title, value2); LYAddVisitedLink(&doc); vl = (VisitedLink *) HTList_objectAt(Visited_Links, i); if (vl != NULL) { vl->level = atoi(level); i++; } } } #endif /* VLINK_OUT_SESSION */ } else if (*buffer == '#') { /* This is comment; ignore it */ continue; } else if (errors-- < 0) { FREE(buffer); break; } else continue; } LYCloseOutput(fp); } SetDefaultMode(O_BINARY); return (TRUE); } /* Save session to file, overwriting one. * Fast as much as lynx allow. * If it is still slow for you improve following functions: * HTListObjectAt() and HTList_count(). */ BOOLEAN SaveSession(void) { int code = FALSE; char *my_filename = get_filename(sessionout_file); FILE *fp; VisitedLink *vl; int i, j, k; if (my_filename == NULL) { /* nothing to do, so exit */ return (TRUE); } CTRACE((tfp, "SaveSession %s\n", my_filename)); SetDefaultMode(O_TEXT); if ((fp = fopen(my_filename, TXT_W)) != NULL) { code = TRUE; fprintf(fp, "# lynx session\n"); /* @@@ simple for now */ /* Note use of session_limit, the most recent entries in list, from end of list, are saved */ #ifdef SEARCH_IN_SESSION k = HTList_count(search_queries); if (k > session_limit) j = k - session_limit; else j = 0; for (i = j; i < k; i++) { fprintf(fp, "/ "); fputs((char *) HTList_objectAt(search_queries, i), fp); fprintf(fp, "\n"); } #endif /* SEARCH_IN_SESSION */ #ifdef GOTOURL_IN_SESSION k = HTList_count(Goto_URLs); if (k > session_limit) j = k - session_limit; else j = 0; for (i = j; i < k; i++) { fprintf(fp, "g "); fputs((char *) HTList_objectAt(Goto_URLs, i), fp); fprintf(fp, "\n"); } #endif /* GOTOURL_IN_SESSION */ #ifdef HISTORY_IN_SESSION k = nhist + nhist_extra; if (k > session_limit) j = k - session_limit; else j = 0; for (i = j; i < k; i++) { fprintf(fp, "h %d %d ", HDOC(i).line, HDOC(i).link); fputs(HDOC(i).address, fp); fprintf(fp, "\t"); fputs(HDOC(i).title, fp); fprintf(fp, "\n"); } #endif /* HISTORY_IN_SESSION */ #ifdef VLINK_IN_SESSION k = HTList_count(Visited_Links); if (k > session_limit) j = k - session_limit; else j = 0; for (i = j; i < k; i++) { vl = (VisitedLink *) HTList_objectAt(Visited_Links, i); fprintf(fp, "V %d ", vl->level); fputs(vl->address, fp); fprintf(fp, "\t"); fputs(vl->title, fp); fprintf(fp, "\n"); } LYCloseOutput(fp); #endif /* VLINK_IN_SESSION */ } SetDefaultMode(O_BINARY); return (code); } #endif /* USE_SESSIONS */