#include #include #include #include #include #include #include #include #include #include /* * LYDownload takes a URL and downloads it using a user selected * download program * * It parses an incoming link that looks like * * LYNXDOWNLOAD://Method=<#>/File=/SugFile= */ #ifdef VMS PUBLIC BOOLEAN LYDidRename = FALSE; #endif /* VMS */ PRIVATE char LYValidDownloadFile[LY_MAXPATH] = "\0"; PUBLIC void LYDownload ARGS1( char *, line) { char *Line = NULL, *method, *file, *sug_file = NULL; int method_number; int count; char *the_command = 0; char buffer[LY_MAXPATH]; char command[LY_MAXPATH]; char *cp; lynx_html_item_type *download_command = 0; FILE *fp; int ch, recall; int FnameTotal; int FnameNum; BOOLEAN FirstRecall = TRUE; BOOLEAN SecondS = FALSE; #ifdef VMS LYDidRename = FALSE; #endif /* VMS */ /* * Make sure we have a valid download * file comparison string loaded via * the download options menu. - FM */ if (LYValidDownloadFile[0] == '\0') { goto failed; } /* * Make a copy of the LYNXDOWNLOAD * internal URL for parsing. - FM */ StrAllocCopy(Line, line); /* * Parse out the sug_file, Method and the File. */ if ((sug_file = (char *)strstr(Line, "SugFile=")) != NULL) { *(sug_file-1) = '\0'; /* * Go past "SugFile=". */ sug_file += 8; HTUnEscape(sug_file); } if ((file = (char *)strstr(Line, "File=")) == NULL) goto failed; *(file-1) = '\0'; /* * Go past "File=". */ file += 5; /* * Make sure that the file string is the one from * the last displayed download options menu. - FM */ if (strcmp(file, LYValidDownloadFile)) { goto failed; } #ifdef DIRED_SUPPORT /* FIXME: use HTLocalName */ if (!strncmp(file, "file://localhost", 16)) file += 16; else if (!strncmp(file, "file:", 5)) file += 5; HTUnEscape(file); #endif /* DIRED_SUPPORT */ if ((method = (char *)strstr(Line, "Method=")) == NULL) goto failed; /* * Go past "Method=". */ method += 7; method_number = atoi(method); /* * Set up the sug_filenames recall buffer. */ FnameTotal = (sug_filenames ? HTList_count(sug_filenames) : 0); recall = ((FnameTotal >= 1) ? RECALL : NORECALL); FnameNum = FnameTotal; if (method_number < 0) { /* * Write to local file. */ _statusline(FILENAME_PROMPT); retry: if (sug_file) LYstrncpy(buffer, sug_file, ((sizeof(buffer)/2) - 1)); else *buffer = '\0'; check_recall: if ((ch = LYgetstr(buffer, VISIBLE, (sizeof(buffer)/2), recall)) < 0 || *buffer == '\0' || ch == UPARROW || ch == DNARROW) { if (recall && ch == UPARROW) { if (FirstRecall) { FirstRecall = FALSE; /* * Use the last Fname in the list. - FM */ FnameNum = 0; } else { /* * Go back to the previous Fname in the list. - FM */ FnameNum++; } if (FnameNum >= FnameTotal) { /* * Reset the FirstRecall flag, * and use sug_file or a blank. - FM */ FirstRecall = TRUE; FnameNum = FnameTotal; _statusline(FILENAME_PROMPT); goto retry; } else if ((cp = (char *)HTList_objectAt( sug_filenames, FnameNum)) != NULL) { strcpy(buffer, cp); if (FnameTotal == 1) { _statusline(EDIT_THE_PREV_FILENAME); } else { _statusline(EDIT_A_PREV_FILENAME); } goto check_recall; } } else if (recall && ch == DNARROW) { if (FirstRecall) { FirstRecall = FALSE; /* * Use the first Fname in the list. - FM */ FnameNum = FnameTotal - 1; } else { /* * Advance to the next Fname in the list. - FM */ FnameNum--; } if (FnameNum < 0) { /* * Set the FirstRecall flag, * and use sug_file or a blank. - FM */ FirstRecall = TRUE; FnameNum = FnameTotal; _statusline(FILENAME_PROMPT); goto retry; } else if ((cp = (char *)HTList_objectAt( sug_filenames, FnameNum)) != NULL) { strcpy(buffer, cp); if (FnameTotal == 1) { _statusline(EDIT_THE_PREV_FILENAME); } else { _statusline(EDIT_A_PREV_FILENAME); } goto check_recall; } } /* * Save cancelled. */ goto cancelled; } strcpy(command, buffer); if (!LYValidateFilename(buffer, command)) goto cancelled; #if HAVE_POPEN else if (LYIsPipeCommand(buffer)) { /* I don't know how to download to a pipe */ HTAlert(CANNOT_WRITE_TO_FILE); _statusline(NEW_FILENAME_PROMPT); FirstRecall = TRUE; FnameNum = FnameTotal; goto retry; } #endif /* * See if it already exists. */ switch (LYValidateOutput(buffer)) { case 'Y': break; case 'N': _statusline(NEW_FILENAME_PROMPT); FirstRecall = TRUE; FnameNum = FnameTotal; goto retry; default: FREE(Line); return; } /* * See if we can write to it. */ CTRACE(tfp, "LYDownload: filename is %s", buffer); if ((fp = fopen(buffer, "w")) != NULL) { fclose(fp); remove(buffer); } else { HTAlert(CANNOT_WRITE_TO_FILE); _statusline(NEW_FILENAME_PROMPT); FirstRecall = TRUE; FnameNum = FnameTotal; goto retry; } SecondS = TRUE; HTInfoMsg(SAVING); #ifdef VMS /* * Try rename() first. - FM */ CTRACE(tfp, "command: rename(%s, %s)\n", file, buffer); if (rename(file, buffer)) { /* * Failed. Use spawned COPY_COMMAND. - FM */ CTRACE(tfp, " FAILED!\n"); LYCopyFile(file, buffer); } else { /* * We don't have the temporary file (it was renamed to * a permanent file), so set a flag to pop out of the * download menu. - FM */ LYDidRename = TRUE; } chmod(buffer, HIDE_CHMOD); #else /* Unix: */ LYCopyFile(file, buffer); #if defined(UNIX) LYRelaxFilePermissions(buffer); #endif /* defined(UNIX) */ #endif /* VMS */ } else { /* * Use configured download commands. */ buffer[0] = '\0'; for (count = 0, download_command=downloaders; count < method_number; count++, download_command = download_command->next) ; /* null body */ /* * Commands have the form "command %s [etc]" * where %s is the filename. */ if (download_command->command != NULL) { /* * Check for two '%s' and ask for the local filename if * there is. */ if (HTCountCommandArgs(download_command->command) >= 2) { _statusline(FILENAME_PROMPT); again: if (sug_file) strncpy(buffer, sug_file, (sizeof(buffer)/2) - 1); else *buffer = '\0'; check_again: if ((ch = LYgetstr(buffer, VISIBLE, sizeof(buffer), recall)) < 0 || *buffer == '\0' || ch == UPARROW || ch == DNARROW) { if (recall && ch == UPARROW) { if (FirstRecall) { FirstRecall = FALSE; /* * Use the last Fname in the list. - FM */ FnameNum = 0; } else { /* * Go back to the previous Fname * in the list. - FM */ FnameNum++; } if (FnameNum >= FnameTotal) { /* * Reset the FirstRecall flag, * and use sug_file or a blank. - FM */ FirstRecall = TRUE; FnameNum = FnameTotal; _statusline(FILENAME_PROMPT); goto again; } else if ((cp = (char *)HTList_objectAt( sug_filenames, FnameNum)) != NULL) { strcpy(buffer, cp); if (FnameTotal == 1) { _statusline(EDIT_THE_PREV_FILENAME); } else { _statusline(EDIT_A_PREV_FILENAME); } goto check_again; } } else if (recall && ch == DNARROW) { if (FirstRecall) { FirstRecall = FALSE; /* * Use the first Fname in the list. - FM */ FnameNum = FnameTotal - 1; } else { /* * Advance to the next Fname in the list. - FM */ FnameNum--; } if (FnameNum < 0) { /* * Set the FirstRecall flag, * and use sug_file or a blank. - FM */ FirstRecall = TRUE; FnameNum = FnameTotal; _statusline(FILENAME_PROMPT); goto again; } else if ((cp = (char *)HTList_objectAt( sug_filenames, FnameNum)) != NULL) { strcpy(buffer, cp); if (FnameTotal == 1) { _statusline(EDIT_THE_PREV_FILENAME); } else { _statusline(EDIT_A_PREV_FILENAME); } goto check_again; } } /* * Download cancelled. */ goto cancelled; } if (no_dotfiles || !show_dotfiles) { if (*LYPathLeaf(buffer) == '.') { HTAlert(FILENAME_CANNOT_BE_DOT); _statusline(NEW_FILENAME_PROMPT); goto again; } } /* * Cancel if the user entered "/dev/null" on Unix, * or an "nl:" path (case-insensitive) on VMS. - FM */ #ifdef VMS if (!strncasecomp(buffer, "nl:", 3) || !strncasecomp(buffer, "/nl/", 4)) #else if (!strcmp(buffer, "/dev/null")) #endif /* VMS */ { goto cancelled; } SecondS = TRUE; } /* * The following is considered a bug by the community. * If the command only takes one argument on the command * line, then the suggested file name is not used. * It actually is not a bug at all and does as it should, * putting both names on the command line. */ count = 1; HTAddParam(&the_command, download_command->command, count, file); if (HTCountCommandArgs(download_command->command) > 1) HTAddParam(&the_command, download_command->command, ++count, buffer); HTEndParam(&the_command, download_command->command, count); } else { HTAlert(MISCONF_DOWNLOAD_COMMAND); goto failed; } CTRACE(tfp, "command: %s\n", the_command); stop_curses(); LYSystem(the_command); FREE(the_command); start_curses(); /* don't remove(file); */ } if (SecondS == TRUE) { #ifdef VMS if (0 == strncasecomp(buffer, "sys$disk:", 9)) { if (0 == strncmp((buffer+9), "[]", 2)) { HTAddSugFilename(buffer+11); } else { HTAddSugFilename(buffer+9); } } else { HTAddSugFilename(buffer); } #else HTAddSugFilename(buffer); #endif /* VMS */ } FREE(Line); return; failed: HTAlert(CANNOT_DOWNLOAD_FILE); FREE(Line); return; cancelled: HTInfoMsg(CANCELLING); FREE(Line); return; } /* * LYdownload_options writes out the current download choices to * a file so that the user can select downloaders in the same way that * they select all other links. Download links look like: * LYNXDOWNLOAD://Method=<#>/File=/SugFile= */ PUBLIC int LYdownload_options ARGS2( char **, newfile, char *, data_file) { static char tempfile[LY_MAXPATH]; char *downloaded_url = NULL; char *sug_filename = NULL; FILE *fp0; lynx_html_item_type *cur_download; int count; /* * Get a suggested filename. */ StrAllocCopy(sug_filename, *newfile); change_sug_filename(sug_filename); LYRemoveTemp(tempfile); if ((fp0 = LYOpenTemp(tempfile, HTML_SUFFIX, "w")) == NULL) { HTAlert(CANNOT_OPEN_TEMP); return(-1); } StrAllocCopy(downloaded_url, *newfile); LYLocalFileToURL(newfile, tempfile); LYstrncpy(LYValidDownloadFile, data_file, (sizeof(LYValidDownloadFile) - 1)); LYforce_no_cache = TRUE; /* don't cache this doc */ BeginInternalPage(fp0, DOWNLOAD_OPTIONS_TITLE, DOWNLOAD_OPTIONS_HELP); fprintf(fp0, "
\n");
    fprintf(fp0, "%s %s\n",
    	    gettext("Downloaded link:"),
	    downloaded_url);
    FREE(downloaded_url);

    fprintf(fp0, "%s %s\n",
    	    gettext("Suggested file name:"),
	    sug_filename);

    fprintf(fp0, "\n%s\n",
	    (user_mode == NOVICE_MODE)
	    ? gettext("Standard download options:")
	    : gettext("Download options:"));

    if (!no_disk_save && !child_lynx) {
#ifdef DIRED_SUPPORT
	/*
	 *  Disable save to disk option for local files.
	 */
	if (!lynx_edit_mode)
#endif /* DIRED_SUPPORT */
	fprintf(fp0,
		"   %s\n",
		data_file,
		(lynx_save_space ? lynx_save_space : ""),
		sug_filename,
		gettext("Save to disk"));
    } else {
	fprintf(fp0, "   %s\n", gettext("Save to disk disabled."));
    }

    if (user_mode == NOVICE_MODE)
	fprintf(fp0, "\n%s\n", gettext("Local additions:"));

    if (downloaders != NULL) {
	for (count = 0, cur_download = downloaders; cur_download != NULL;
			cur_download = cur_download->next, count++) {
	    if (!no_download || cur_download->always_enabled) {
		fprintf(fp0, "   ",
			count,data_file, sug_filename);
		fprintf(fp0, "%s", (cur_download->name ?
			cur_download->name : gettext("No Name Given")));
		fprintf(fp0,"\n");
	    }
	}
    }

    fprintf(fp0, "
\n"); EndInternalPage(fp0); LYCloseTempFP(fp0); /* * Free off temp copy. */ FREE(sug_filename); return(0); }