2007-07-26 20:07:39 -04:00
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/** Downloads managment
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* @file */
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2005-09-15 09:58:31 -04:00
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef HAVE_SYS_CYGWIN_H
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#include <sys/cygwin.h>
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#endif
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#include <sys/types.h>
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h> /* OS/2 needs this after sys/types.h */
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#endif
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#include <sys/stat.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <utime.h>
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#include "elinks.h"
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#include "bfu/dialog.h"
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#include "cache/cache.h"
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#include "config/options.h"
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#include "dialogs/document.h"
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#include "dialogs/download.h"
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#include "dialogs/menu.h"
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#include "intl/gettext/libintl.h"
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#include "main/object.h"
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#include "mime/mime.h"
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#include "network/connection.h"
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#include "network/progress.h"
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#include "network/state.h"
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#include "osdep/osdep.h"
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#include "protocol/bittorrent/dialogs.h"
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#include "protocol/date.h"
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#include "protocol/protocol.h"
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#include "protocol/uri.h"
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#include "session/download.h"
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#include "session/history.h"
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#include "session/location.h"
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#include "session/session.h"
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#include "session/task.h"
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#include "terminal/draw.h"
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#include "terminal/screen.h"
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#include "terminal/terminal.h"
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#include "util/conv.h"
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#include "util/error.h"
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#include "util/file.h"
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#include "util/lists.h"
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#include "util/memlist.h"
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#include "util/memory.h"
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#include "util/string.h"
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#include "util/time.h"
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/* TODO: tp_*() should be in separate file, I guess? --pasky */
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2007-07-26 15:39:08 -04:00
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INIT_LIST_OF(struct file_download, downloads);
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2005-09-15 09:58:31 -04:00
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int
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download_is_progressing(struct download *download)
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{
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return download
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2008-08-03 08:24:26 -04:00
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&& is_in_state(download->state, S_TRANS)
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2005-09-15 09:58:31 -04:00
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&& has_progress(download->progress);
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}
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int
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are_there_downloads(void)
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{
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struct file_download *file_download;
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foreach (file_download, downloads)
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if (!file_download->external_handler)
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return 1;
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return 0;
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}
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static void download_data(struct download *download, struct file_download *file_download);
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struct file_download *
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init_file_download(struct uri *uri, struct session *ses, unsigned char *file, int fd)
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{
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struct file_download *file_download;
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file_download = mem_calloc(1, sizeof(*file_download));
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if (!file_download) return NULL;
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/* Actually we could allow fragments in the URI and just change all the
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* places that compares and shows the URI, but for now it is much
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* easier this way. */
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file_download->uri = get_composed_uri(uri, URI_BASE);
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if (!file_download->uri) {
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mem_free(file_download);
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return NULL;
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}
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init_download_display(file_download);
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file_download->file = file;
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file_download->handle = fd;
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file_download->download.callback = (download_callback_T *) download_data;
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file_download->download.data = file_download;
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file_download->ses = ses;
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/* The tab may be closed, but we will still want to ie. open the
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* handler on that terminal. */
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file_download->term = ses->tab->term;
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object_nolock(file_download, "file_download"); /* Debugging purpose. */
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add_to_list(downloads, file_download);
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return file_download;
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}
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void
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abort_download(struct file_download *file_download)
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{
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#if 0
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/* When hacking to cleanup the download code, remove lots of duplicated
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* code and implement stuff from bug 435 we should reintroduce this
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* assertion. Currently it will trigger often and shows that the
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* download dialog code potentially could access free()d memory. */
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assert(!is_object_used(file_download));
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#endif
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done_download_display(file_download);
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if (file_download->ses)
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check_questions_queue(file_download->ses);
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if (file_download->dlg_data)
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cancel_dialog(file_download->dlg_data, NULL);
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2006-02-12 10:41:21 -05:00
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cancel_download(&file_download->download, file_download->stop);
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2005-09-15 09:58:31 -04:00
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if (file_download->uri) done_uri(file_download->uri);
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if (file_download->handle != -1) {
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prealloc_truncate(file_download->handle, file_download->seek);
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close(file_download->handle);
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}
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mem_free_if(file_download->external_handler);
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if (file_download->file) {
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if (file_download->delete) unlink(file_download->file);
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mem_free(file_download->file);
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}
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del_from_list(file_download);
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mem_free(file_download);
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}
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static void
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kill_downloads_to_file(unsigned char *file)
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{
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struct file_download *file_download;
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foreach (file_download, downloads) {
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if (strcmp(file_download->file, file))
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continue;
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file_download = file_download->prev;
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abort_download(file_download->next);
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}
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}
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void
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abort_all_downloads(void)
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{
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while (!list_empty(downloads))
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abort_download(downloads.next);
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}
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void
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destroy_downloads(struct session *ses)
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{
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struct file_download *file_download, *next;
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struct session *s;
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/* We are supposed to blat all downloads to external handlers belonging
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* to @ses, but we will refuse to do so if there is another session
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* bound to this terminal. That looks like the reasonable thing to do,
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* fulfilling the principle of least astonishment. */
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foreach (s, sessions) {
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if (s == ses || s->tab->term != ses->tab->term)
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continue;
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foreach (file_download, downloads) {
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if (file_download->ses != ses)
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continue;
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file_download->ses = s;
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}
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return;
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}
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foreachsafe (file_download, next, downloads) {
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if (file_download->ses != ses)
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continue;
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if (!file_download->external_handler) {
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file_download->ses = NULL;
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continue;
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}
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abort_download(file_download);
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}
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}
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2008-09-30 03:06:20 -04:00
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void
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detach_downloads_from_terminal(struct terminal *term)
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{
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struct file_download *file_download, *next;
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assert(term != NULL);
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if_assert_failed return;
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foreachsafe (file_download, next, downloads) {
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if (file_download->term != term)
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continue;
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if (!file_download->external_handler) {
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file_download->term = NULL;
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if (file_download->ses
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&& file_download->ses->tab->term == term)
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file_download->ses = NULL;
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continue;
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}
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abort_download(file_download);
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}
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}
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2005-09-15 09:58:31 -04:00
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static void
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download_error_dialog(struct file_download *file_download, int saved_errno)
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{
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unsigned char *emsg = (unsigned char *) strerror(saved_errno);
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struct session *ses = file_download->ses;
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struct terminal *term = file_download->term;
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if (!ses) return;
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info_box(term, MSGBOX_FREE_TEXT,
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N_("Download error"), ALIGN_CENTER,
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msg_text(term, N_("Could not create file '%s':\n%s"),
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file_download->file, emsg));
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}
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static int
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write_cache_entry_to_file(struct cache_entry *cached, struct file_download *file_download)
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{
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struct fragment *frag;
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if (file_download->download.progress && file_download->download.progress->seek) {
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file_download->seek = file_download->download.progress->seek;
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file_download->download.progress->seek = 0;
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/* This is exclusive with the prealloc, thus we can perform
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* this in front of that thing safely. */
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if (lseek(file_download->handle, file_download->seek, SEEK_SET) < 0) {
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download_error_dialog(file_download, errno);
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return 0;
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}
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}
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foreach (frag, cached->frag) {
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off_t remain = file_download->seek - frag->offset;
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int *h = &file_download->handle;
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ssize_t w;
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if (remain < 0 || frag->length <= remain)
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continue;
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#ifdef USE_OPEN_PREALLOC
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if (!file_download->seek
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&& (!file_download->download.progress
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|| file_download->download.progress->size > 0)) {
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close(*h);
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*h = open_prealloc(file_download->file,
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O_CREAT|O_WRONLY|O_TRUNC,
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0666,
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file_download->download.progress
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? file_download->download.progress->size
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: cached->length);
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if (*h == -1) {
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download_error_dialog(file_download, errno);
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return 0;
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}
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set_bin(*h);
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}
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#endif
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w = safe_write(*h, frag->data + remain, frag->length - remain);
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if (w == -1) {
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download_error_dialog(file_download, errno);
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return 0;
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}
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file_download->seek += w;
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}
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return 1;
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}
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static void
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abort_download_and_beep(struct file_download *file_download, struct terminal *term)
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{
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if (term && get_opt_int("document.download.notify_bell")
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+ file_download->notify >= 2) {
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beep_terminal(term);
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}
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abort_download(file_download);
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}
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static void
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download_data_store(struct download *download, struct file_download *file_download)
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{
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struct terminal *term = file_download->term;
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2008-09-30 03:06:20 -04:00
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assert_terminal_ptr_not_dangling(term);
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if_assert_failed term = file_download->term = NULL;
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2005-09-15 09:58:31 -04:00
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if (!term) {
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/* No term here, so no beep. --Zas */
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abort_download(file_download);
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return;
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}
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if (is_in_progress_state(download->state)) {
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if (file_download->dlg_data)
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redraw_dialog(file_download->dlg_data, 1);
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return;
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}
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2008-08-03 08:24:26 -04:00
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if (!is_in_state(download->state, S_OK)) {
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2005-09-15 09:58:31 -04:00
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unsigned char *url = get_uri_string(file_download->uri, URI_PUBLIC);
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2008-08-03 08:24:26 -04:00
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struct connection_state state = download->state;
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2005-09-15 09:58:31 -04:00
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abort_download_and_beep(file_download, term);
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if (!url) return;
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info_box(term, MSGBOX_FREE_TEXT,
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N_("Download error"), ALIGN_CENTER,
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msg_text(term, N_("Error downloading %s:\n\n%s"),
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url, get_state_message(state, term)));
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mem_free(url);
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return;
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}
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if (file_download->external_handler) {
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prealloc_truncate(file_download->handle, file_download->seek);
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close(file_download->handle);
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file_download->handle = -1;
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2008-06-15 07:21:55 -04:00
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exec_on_terminal(term, file_download->external_handler,
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2005-09-15 09:58:31 -04:00
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file_download->file,
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2007-07-14 05:26:45 -04:00
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file_download->block ? TERM_EXEC_FG : TERM_EXEC_BG);
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2008-06-15 07:21:55 -04:00
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file_download->delete = 0;
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abort_download_and_beep(file_download, term);
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2005-09-15 09:58:31 -04:00
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return;
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}
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if (file_download->notify) {
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unsigned char *url = get_uri_string(file_download->uri, URI_PUBLIC);
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/* This is apparently a little racy. Deleting the box item will
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* update the download browser _after_ the notification dialog
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* has been drawn whereby it will be hidden. This should make
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|
|
* the download browser update before launcing any
|
|
|
|
* notification. */
|
|
|
|
done_download_display(file_download);
|
|
|
|
|
|
|
|
if (url) {
|
|
|
|
info_box(term, MSGBOX_FREE_TEXT,
|
|
|
|
N_("Download"), ALIGN_CENTER,
|
|
|
|
msg_text(term, N_("Download complete:\n%s"), url));
|
|
|
|
mem_free(url);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (file_download->remotetime
|
|
|
|
&& get_opt_bool("document.download.set_original_time")) {
|
|
|
|
struct utimbuf foo;
|
|
|
|
|
|
|
|
foo.actime = foo.modtime = file_download->remotetime;
|
|
|
|
utime(file_download->file, &foo);
|
|
|
|
}
|
|
|
|
|
|
|
|
abort_download_and_beep(file_download, term);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
download_data(struct download *download, struct file_download *file_download)
|
|
|
|
{
|
|
|
|
struct cache_entry *cached = download->cached;
|
|
|
|
|
|
|
|
if (!cached || is_in_queued_state(download->state)) {
|
|
|
|
download_data_store(download, file_download);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (cached->last_modified)
|
|
|
|
file_download->remotetime = parse_date(&cached->last_modified, NULL, 0, 1);
|
|
|
|
|
|
|
|
if (cached->redirect && file_download->redirect_cnt++ < MAX_REDIRECTS) {
|
2006-02-12 10:41:21 -05:00
|
|
|
cancel_download(&file_download->download, 0);
|
2005-09-15 09:58:31 -04:00
|
|
|
|
|
|
|
assertm(compare_uri(cached->uri, file_download->uri, 0),
|
|
|
|
"Redirecting using bad base URI");
|
|
|
|
|
|
|
|
done_uri(file_download->uri);
|
|
|
|
|
|
|
|
file_download->uri = get_uri_reference(cached->redirect);
|
2008-08-03 08:24:26 -04:00
|
|
|
file_download->download.state = connection_state(S_WAIT_REDIR);
|
2005-09-15 09:58:31 -04:00
|
|
|
|
|
|
|
if (file_download->dlg_data)
|
|
|
|
redraw_dialog(file_download->dlg_data, 1);
|
|
|
|
|
|
|
|
load_uri(file_download->uri, cached->uri, &file_download->download,
|
|
|
|
PRI_DOWNLOAD, CACHE_MODE_NORMAL,
|
|
|
|
download->progress ? download->progress->start : 0);
|
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!write_cache_entry_to_file(cached, file_download)) {
|
|
|
|
detach_connection(download, file_download->seek);
|
|
|
|
abort_download(file_download);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
detach_connection(download, file_download->seek);
|
|
|
|
download_data_store(download, file_download);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* XXX: We assume that resume is everytime zero in lun's callbacks. */
|
|
|
|
struct lun_hop {
|
|
|
|
struct terminal *term;
|
|
|
|
unsigned char *ofile, *file;
|
|
|
|
|
|
|
|
void (*callback)(struct terminal *, unsigned char *, void *, int);
|
|
|
|
void *data;
|
|
|
|
};
|
|
|
|
|
2006-07-16 08:46:46 -04:00
|
|
|
enum {
|
|
|
|
COMMON_DOWNLOAD_DO = 0,
|
|
|
|
CONTINUE_DOWNLOAD_DO
|
|
|
|
};
|
|
|
|
|
|
|
|
struct cmdw_hop {
|
|
|
|
int magic; /* Must be first --witekfl */
|
|
|
|
struct session *ses;
|
|
|
|
unsigned char *real_file;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct codw_hop {
|
|
|
|
int magic; /* must be first --witekfl */
|
|
|
|
struct type_query *type_query;
|
|
|
|
unsigned char *real_file;
|
|
|
|
unsigned char *file;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct cdf_hop {
|
|
|
|
unsigned char **real_file;
|
|
|
|
int safe;
|
|
|
|
|
|
|
|
void (*callback)(struct terminal *, int, void *, int);
|
|
|
|
void *data;
|
|
|
|
};
|
|
|
|
|
2005-09-15 09:58:31 -04:00
|
|
|
static void
|
2007-03-10 16:50:56 -05:00
|
|
|
lun_alternate(void *lun_hop_)
|
2005-09-15 09:58:31 -04:00
|
|
|
{
|
2007-03-10 16:50:56 -05:00
|
|
|
struct lun_hop *lun_hop = lun_hop_;
|
|
|
|
|
2005-09-15 09:58:31 -04:00
|
|
|
lun_hop->callback(lun_hop->term, lun_hop->file, lun_hop->data, 0);
|
|
|
|
mem_free_if(lun_hop->ofile);
|
|
|
|
mem_free(lun_hop);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
2007-03-10 16:50:56 -05:00
|
|
|
lun_cancel(void *lun_hop_)
|
2005-09-15 09:58:31 -04:00
|
|
|
{
|
2007-03-10 16:50:56 -05:00
|
|
|
struct lun_hop *lun_hop = lun_hop_;
|
|
|
|
|
2006-07-16 08:46:46 -04:00
|
|
|
lun_hop->callback(lun_hop->term, NULL, lun_hop->data, 0);
|
|
|
|
mem_free_if(lun_hop->ofile);
|
2005-09-15 09:58:31 -04:00
|
|
|
mem_free_if(lun_hop->file);
|
|
|
|
mem_free(lun_hop);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
2007-03-10 16:50:56 -05:00
|
|
|
lun_overwrite(void *lun_hop_)
|
2005-09-15 09:58:31 -04:00
|
|
|
{
|
2007-03-10 16:50:56 -05:00
|
|
|
struct lun_hop *lun_hop = lun_hop_;
|
|
|
|
|
2006-07-16 08:46:46 -04:00
|
|
|
lun_hop->callback(lun_hop->term, lun_hop->ofile, lun_hop->data, 0);
|
2005-09-15 09:58:31 -04:00
|
|
|
mem_free_if(lun_hop->file);
|
|
|
|
mem_free(lun_hop);
|
|
|
|
}
|
|
|
|
|
2006-07-16 08:46:46 -04:00
|
|
|
static void common_download_do(struct terminal *term, int fd, void *data, int resume);
|
|
|
|
|
2005-09-15 09:58:31 -04:00
|
|
|
static void
|
2007-03-10 16:50:56 -05:00
|
|
|
lun_resume(void *lun_hop_)
|
2005-09-15 09:58:31 -04:00
|
|
|
{
|
2007-03-10 16:50:56 -05:00
|
|
|
struct lun_hop *lun_hop = lun_hop_;
|
2006-07-16 08:46:46 -04:00
|
|
|
struct cdf_hop *cdf_hop = lun_hop->data;
|
|
|
|
|
|
|
|
int magic = *(int *)cdf_hop->data;
|
|
|
|
|
|
|
|
if (magic == CONTINUE_DOWNLOAD_DO) {
|
|
|
|
struct cmdw_hop *cmdw_hop = mem_calloc(1, sizeof(*cmdw_hop));
|
|
|
|
|
|
|
|
if (!cmdw_hop) {
|
|
|
|
lun_cancel(lun_hop);
|
|
|
|
return;
|
|
|
|
} else {
|
|
|
|
struct codw_hop *codw_hop = cdf_hop->data;
|
|
|
|
struct type_query *type_query = codw_hop->type_query;
|
|
|
|
|
|
|
|
cmdw_hop->magic = COMMON_DOWNLOAD_DO;
|
|
|
|
cmdw_hop->ses = type_query->ses;
|
|
|
|
/* FIXME: Current ses->download_uri is overwritten here --witekfl */
|
|
|
|
cmdw_hop->ses->download_uri = get_uri_reference(type_query->uri);
|
|
|
|
|
|
|
|
if (type_query->external_handler) mem_free_if(codw_hop->file);
|
|
|
|
tp_cancel(type_query);
|
|
|
|
mem_free(codw_hop);
|
|
|
|
|
|
|
|
cdf_hop->real_file = &cmdw_hop->real_file;
|
|
|
|
cdf_hop->data = cmdw_hop;
|
|
|
|
cdf_hop->callback = common_download_do;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
lun_hop->callback(lun_hop->term, lun_hop->ofile, lun_hop->data, 1);
|
2005-09-15 09:58:31 -04:00
|
|
|
mem_free_if(lun_hop->file);
|
|
|
|
mem_free(lun_hop);
|
|
|
|
}
|
|
|
|
|
2006-07-16 08:46:46 -04:00
|
|
|
|
2005-09-15 09:58:31 -04:00
|
|
|
static void
|
|
|
|
lookup_unique_name(struct terminal *term, unsigned char *ofile, int resume,
|
|
|
|
void (*callback)(struct terminal *, unsigned char *, void *, int),
|
|
|
|
void *data)
|
|
|
|
{
|
Here is a framework that detects cases where a PO file assigns
the same accelerator key to multiple buttons in a dialog box or
to multiple items in a menu. ELinks already has some support for
this but it requires the translator to run ELinks and manually
scan through all menus and dialogs. The attached changes make it
possible to quickly detect and list any conflicts, including ones
that can only occur on operating systems or configurations that
the translator is not currently using.
The changes have no immediate effect on the elinks executable or
the MO files. PO files become larger, however.
The scheme works like this:
- Like before, accelerator keys in translatable strings are
tagged with the tilde (~) character.
- Whenever a C source file defines an accelerator key, it must
assign one or more named "contexts" to it. The translations in
the PO files inherit these contexts. If multiple strings use
the same accelerator (case insensitive) in the same context,
that's a conflict and can be detected automatically.
- The contexts are defined with "gettext_accelerator_context"
comments in source files. These comments delimit regions where
all translatable strings containing tildes are given the same
contexts. There must be one special comment at the top of the
region; it lists the contexts assigned to that region. The
region automatically ends at the end of the function (found
with regexp /^\}/), but it can also be closed explicitly with
another special comment. The comments are formatted like this:
/* [gettext_accelerator_context(foo, bar, baz)]
begins a region that uses the contexts "foo", "bar", and "baz".
The comma is the delimiter; whitespace is optional.
[gettext_accelerator_context()]
ends the region. */
The scripts don't currently check whether this syntax occurs
inside or outside comments.
- The names of contexts consist of C identifiers delimited with
periods. I typically used the name of a function that sets
up a dialog, or the name of an array where the items of a
menu are listed. There is a special feature for static
functions: if the name begins with a period, then the period
will be replaced with the name of the source file and a colon.
- If a menu is programmatically generated from multiple parts,
of which some are never used together, so that it is safe to
use the same accelerators in them, then it is necessary to
define multiple contexts for the same menu. link_menu() in
src/viewer/text/link.c is the most complex example of this.
- During make update-po:
- A Perl script (po/gather-accelerator-contexts.pl) reads
po/elinks.pot, scans the source files listed in it for
"gettext_accelerator_context" comments, and rewrites
po/elinks.pot with "accelerator_context" comments that
indicate the contexts of each msgid: the union of all
contexts of all of its uses in the source files. It also
removes any "gettext_accelerator_context" comments that
xgettext --add-comments has copied to elinks.pot.
- If po/gather-accelerator-contexts.pl does not find any
contexts for some use of an msgid that seems to contain an
accelerator (because it contains a tilde), it warns. If the
tilde refers to e.g. "~/.elinks" and does not actually mark
an accelerator, the warning can be silenced by specifying the
special context "IGNORE", which the script otherwise ignores.
- msgmerge copies the "accelerator_context" comments from
po/elinks.pot to po/*.po. Translators do not edit those
comments.
- During make check-po:
- Another Perl script (po/check-accelerator-contexts.pl) reads
po/*.po and keeps track of which accelerators have been bound
in each context. It warns about any conflicts it finds.
This script does not access the C source files; thus it does
not matter if the line numbers in "#:" lines are out of date.
This implementation is not perfect and I am not proposing to
add it to the main source tree at this time. Specifically:
- It introduces compile-time dependencies on Perl and Locale::PO.
There should be a configure-time or compile-time check so that
the new features are skipped if the prerequisites are missing.
- When the scripts include msgstr strings in warnings, they
should transcode them from the charset of the PO file to the
one specified by the user's locale.
- It is not adequately documented (well, except perhaps here).
- po/check-accelerator-contexts.pl reports the same conflict
multiple times if it occurs in multiple contexts.
- The warning messages should include line numbers, so that users
of Emacs could conveniently edit the conflicting part of the PO
file. This is not feasible with the current version of
Locale::PO.
- Locale::PO does not understand #~ lines and spews warnings
about them. There is an ugly hack to hide these warnings.
- Jonas Fonseca suggested the script could propose accelerators
that are still available. This has not been implemented.
There are three files attached:
- po/gather-accelerator-contexts.pl: Augments elinks.pot with
context information.
- po/check-accelerator-contexts.pl: Checks conflicts.
- accelerator-contexts.diff: Makes po/Makefile run the scripts,
and adds special comments to source files.
2005-12-04 18:38:29 -05:00
|
|
|
/* [gettext_accelerator_context(.lookup_unique_name)] */
|
2005-09-15 09:58:31 -04:00
|
|
|
struct lun_hop *lun_hop;
|
|
|
|
unsigned char *file;
|
|
|
|
int overwrite;
|
|
|
|
|
|
|
|
ofile = expand_tilde(ofile);
|
|
|
|
|
|
|
|
/* Minor code duplication to prevent useless call to get_opt_int()
|
|
|
|
* if possible. --Zas */
|
|
|
|
if (resume) {
|
|
|
|
callback(term, ofile, data, resume);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* !overwrite means always silently overwrite, which may be admitelly
|
|
|
|
* indeed a little confusing ;-) */
|
|
|
|
overwrite = get_opt_int("document.download.overwrite");
|
|
|
|
if (!overwrite) {
|
|
|
|
/* Nothing special to do... */
|
|
|
|
callback(term, ofile, data, resume);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Check if file is a directory, and use a default name if it's the
|
|
|
|
* case. */
|
|
|
|
if (file_is_dir(ofile)) {
|
|
|
|
info_box(term, MSGBOX_FREE_TEXT,
|
|
|
|
N_("Download error"), ALIGN_CENTER,
|
|
|
|
msg_text(term, N_("'%s' is a directory."),
|
|
|
|
ofile));
|
|
|
|
mem_free(ofile);
|
|
|
|
callback(term, NULL, data, 0);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Check if the file already exists (file != ofile). */
|
|
|
|
file = get_unique_name(ofile);
|
|
|
|
|
|
|
|
if (!file || overwrite == 1 || file == ofile) {
|
|
|
|
/* Still nothing special to do... */
|
|
|
|
if (file != ofile) mem_free(ofile);
|
|
|
|
callback(term, file, data, 0);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* overwrite == 2 (ask) and file != ofile (=> original file already
|
|
|
|
* exists) */
|
|
|
|
|
|
|
|
lun_hop = mem_calloc(1, sizeof(*lun_hop));
|
|
|
|
if (!lun_hop) {
|
|
|
|
if (file != ofile) mem_free(file);
|
|
|
|
mem_free(ofile);
|
|
|
|
callback(term, NULL, data, 0);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
lun_hop->term = term;
|
|
|
|
lun_hop->ofile = ofile;
|
|
|
|
lun_hop->file = (file != ofile) ? file : stracpy(ofile);
|
|
|
|
lun_hop->callback = callback;
|
|
|
|
lun_hop->data = data;
|
|
|
|
|
|
|
|
msg_box(term, NULL, MSGBOX_FREE_TEXT,
|
|
|
|
N_("File exists"), ALIGN_CENTER,
|
|
|
|
msg_text(term, N_("This file already exists:\n"
|
|
|
|
"%s\n\n"
|
|
|
|
"The alternative filename is:\n"
|
|
|
|
"%s"),
|
|
|
|
empty_string_or_(lun_hop->ofile),
|
|
|
|
empty_string_or_(file)),
|
|
|
|
lun_hop, 4,
|
2007-03-10 16:50:56 -05:00
|
|
|
MSG_BOX_BUTTON(N_("Sa~ve under the alternative name"), lun_alternate, B_ENTER),
|
|
|
|
MSG_BOX_BUTTON(N_("~Overwrite the original file"), lun_overwrite, 0),
|
|
|
|
MSG_BOX_BUTTON(N_("~Resume download of the original file"), lun_resume, 0),
|
|
|
|
MSG_BOX_BUTTON(N_("~Cancel"), lun_cancel, B_ESC));
|
2005-09-15 09:58:31 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
create_download_file_do(struct terminal *term, unsigned char *file, void *data,
|
|
|
|
int resume)
|
|
|
|
{
|
|
|
|
struct cdf_hop *cdf_hop = data;
|
|
|
|
unsigned char *wd;
|
|
|
|
int h = -1;
|
|
|
|
int saved_errno;
|
|
|
|
#ifdef NO_FILE_SECURITY
|
|
|
|
int sf = 0;
|
|
|
|
#else
|
|
|
|
int sf = cdf_hop->safe;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
if (!file) goto finish;
|
|
|
|
|
|
|
|
wd = get_cwd();
|
|
|
|
set_cwd(term->cwd);
|
|
|
|
|
2006-01-04 15:52:15 -05:00
|
|
|
/* Create parent directories if needed. */
|
|
|
|
mkalldirs(file);
|
|
|
|
|
2005-09-15 09:58:31 -04:00
|
|
|
/* O_APPEND means repositioning at the end of file before each write(),
|
|
|
|
* thus ignoring seek()s and that can hide mysterious bugs. IMHO.
|
|
|
|
* --pasky */
|
|
|
|
h = open(file, O_CREAT | O_WRONLY | (resume ? 0 : O_TRUNC)
|
|
|
|
| (sf && !resume ? O_EXCL : 0),
|
|
|
|
sf ? 0600 : 0666);
|
|
|
|
saved_errno = errno; /* Saved in case of ... --Zas */
|
|
|
|
|
|
|
|
if (wd) {
|
|
|
|
set_cwd(wd);
|
|
|
|
mem_free(wd);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (h == -1) {
|
|
|
|
info_box(term, MSGBOX_FREE_TEXT,
|
|
|
|
N_("Download error"), ALIGN_CENTER,
|
|
|
|
msg_text(term, N_("Could not create file '%s':\n%s"),
|
|
|
|
file, strerror(saved_errno)));
|
|
|
|
|
|
|
|
mem_free(file);
|
|
|
|
goto finish;
|
|
|
|
|
|
|
|
} else {
|
|
|
|
set_bin(h);
|
|
|
|
|
|
|
|
if (!cdf_hop->safe) {
|
|
|
|
unsigned char *download_dir = get_opt_str("document.download.directory");
|
|
|
|
int i;
|
|
|
|
|
|
|
|
safe_strncpy(download_dir, file, MAX_STR_LEN);
|
|
|
|
|
|
|
|
/* Find the used directory so it's available in history */
|
|
|
|
for (i = strlen(download_dir); i >= 0; i--)
|
|
|
|
if (dir_sep(download_dir[i]))
|
|
|
|
break;
|
|
|
|
download_dir[i + 1] = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (cdf_hop->real_file)
|
|
|
|
*cdf_hop->real_file = file;
|
|
|
|
else
|
|
|
|
mem_free(file);
|
|
|
|
|
|
|
|
finish:
|
|
|
|
cdf_hop->callback(term, h, cdf_hop->data, resume);
|
|
|
|
mem_free(cdf_hop);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
create_download_file(struct terminal *term, unsigned char *fi,
|
|
|
|
unsigned char **real_file, int safe, int resume,
|
|
|
|
void (*callback)(struct terminal *, int, void *, int),
|
|
|
|
void *data)
|
|
|
|
{
|
|
|
|
struct cdf_hop *cdf_hop = mem_calloc(1, sizeof(*cdf_hop));
|
|
|
|
unsigned char *wd;
|
|
|
|
|
|
|
|
if (!cdf_hop) {
|
|
|
|
callback(term, -1, data, 0);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
cdf_hop->real_file = real_file;
|
|
|
|
cdf_hop->safe = safe;
|
|
|
|
cdf_hop->callback = callback;
|
|
|
|
cdf_hop->data = data;
|
|
|
|
|
|
|
|
/* FIXME: The wd bussiness is probably useless here? --pasky */
|
|
|
|
wd = get_cwd();
|
|
|
|
set_cwd(term->cwd);
|
|
|
|
|
|
|
|
/* Also the tilde will be expanded here. */
|
|
|
|
lookup_unique_name(term, fi, resume, create_download_file_do, cdf_hop);
|
|
|
|
|
|
|
|
if (wd) {
|
|
|
|
set_cwd(wd);
|
|
|
|
mem_free(wd);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static unsigned char *
|
|
|
|
get_temp_name(struct uri *uri)
|
|
|
|
{
|
|
|
|
struct string name;
|
|
|
|
unsigned char *extension;
|
|
|
|
/* FIXME
|
|
|
|
* We use tempnam() here, which is unsafe (race condition), for now.
|
|
|
|
* This should be changed at some time, but it needs an in-depth work
|
|
|
|
* of whole download code. --Zas */
|
|
|
|
unsigned char *nm = tempnam(NULL, ELINKS_TEMPNAME_PREFIX);
|
|
|
|
|
|
|
|
if (!nm) return NULL;
|
|
|
|
|
|
|
|
if (!init_string(&name)) {
|
|
|
|
free(nm);
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
add_to_string(&name, nm);
|
|
|
|
free(nm);
|
|
|
|
|
|
|
|
extension = get_extension_from_uri(uri);
|
|
|
|
if (extension) {
|
|
|
|
add_shell_safe_to_string(&name, extension, strlen(extension));
|
|
|
|
mem_free(extension);
|
|
|
|
}
|
|
|
|
|
|
|
|
return name.source;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static unsigned char *
|
|
|
|
subst_file(unsigned char *prog, unsigned char *file)
|
|
|
|
{
|
|
|
|
struct string name;
|
2007-02-21 07:43:16 -05:00
|
|
|
/* When there is no %s in the mailcap entry, the handler program reads
|
|
|
|
* data from stdin instead of a file. */
|
|
|
|
int input = 1;
|
2005-09-15 09:58:31 -04:00
|
|
|
|
|
|
|
if (!init_string(&name)) return NULL;
|
|
|
|
|
|
|
|
while (*prog) {
|
|
|
|
int p;
|
|
|
|
|
|
|
|
for (p = 0; prog[p] && prog[p] != '%'; p++);
|
|
|
|
|
|
|
|
add_bytes_to_string(&name, prog, p);
|
|
|
|
prog += p;
|
|
|
|
|
|
|
|
if (*prog == '%') {
|
2007-02-21 07:43:16 -05:00
|
|
|
input = 0;
|
2005-09-15 09:58:31 -04:00
|
|
|
#if defined(HAVE_CYGWIN_CONV_TO_FULL_WIN32_PATH)
|
|
|
|
#ifdef MAX_PATH
|
|
|
|
unsigned char new_path[MAX_PATH];
|
|
|
|
#else
|
|
|
|
unsigned char new_path[1024];
|
|
|
|
#endif
|
|
|
|
|
|
|
|
cygwin_conv_to_full_win32_path(file, new_path);
|
|
|
|
add_to_string(&name, new_path);
|
|
|
|
#else
|
2008-01-08 16:00:19 -05:00
|
|
|
add_shell_quoted_to_string(&name, file, strlen(file));
|
2005-09-15 09:58:31 -04:00
|
|
|
#endif
|
|
|
|
prog++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2007-02-21 07:43:16 -05:00
|
|
|
if (input) {
|
|
|
|
struct string s;
|
|
|
|
|
|
|
|
if (init_string(&s)) {
|
|
|
|
add_to_string(&s, "/bin/cat ");
|
2007-02-26 13:51:22 -05:00
|
|
|
add_shell_quoted_to_string(&s, file, strlen(file));
|
|
|
|
add_to_string(&s, " | ");
|
2007-02-21 07:43:16 -05:00
|
|
|
add_string_to_string(&s, &name);
|
|
|
|
done_string(&name);
|
|
|
|
return s.source;
|
|
|
|
}
|
|
|
|
}
|
2005-09-15 09:58:31 -04:00
|
|
|
return name.source;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
common_download_do(struct terminal *term, int fd, void *data, int resume)
|
|
|
|
{
|
|
|
|
struct file_download *file_download;
|
|
|
|
struct cmdw_hop *cmdw_hop = data;
|
|
|
|
unsigned char *file = cmdw_hop->real_file;
|
|
|
|
struct session *ses = cmdw_hop->ses;
|
|
|
|
struct stat buf;
|
|
|
|
|
|
|
|
mem_free(cmdw_hop);
|
|
|
|
|
|
|
|
if (!file || fstat(fd, &buf)) return;
|
|
|
|
|
|
|
|
file_download = init_file_download(ses->download_uri, ses, file, fd);
|
|
|
|
if (!file_download) return;
|
|
|
|
|
|
|
|
if (resume) file_download->seek = buf.st_size;
|
|
|
|
|
|
|
|
display_download(ses->tab->term, file_download, ses);
|
|
|
|
|
|
|
|
load_uri(file_download->uri, ses->referrer, &file_download->download,
|
|
|
|
PRI_DOWNLOAD, CACHE_MODE_NORMAL, file_download->seek);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
common_download(struct session *ses, unsigned char *file, int resume)
|
|
|
|
{
|
|
|
|
struct cmdw_hop *cmdw_hop;
|
|
|
|
|
|
|
|
if (!ses->download_uri) return;
|
|
|
|
|
|
|
|
cmdw_hop = mem_calloc(1, sizeof(*cmdw_hop));
|
|
|
|
if (!cmdw_hop) return;
|
|
|
|
cmdw_hop->ses = ses;
|
2006-07-16 08:46:46 -04:00
|
|
|
cmdw_hop->magic = COMMON_DOWNLOAD_DO;
|
2005-09-15 09:58:31 -04:00
|
|
|
|
|
|
|
kill_downloads_to_file(file);
|
|
|
|
|
|
|
|
create_download_file(ses->tab->term, file, &cmdw_hop->real_file, 0,
|
|
|
|
resume, common_download_do, cmdw_hop);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
start_download(void *ses, unsigned char *file)
|
|
|
|
{
|
|
|
|
common_download(ses, file, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
resume_download(void *ses, unsigned char *file)
|
|
|
|
{
|
|
|
|
common_download(ses, file, 1);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
continue_download_do(struct terminal *term, int fd, void *data, int resume)
|
|
|
|
{
|
|
|
|
struct codw_hop *codw_hop = data;
|
|
|
|
struct file_download *file_download = NULL;
|
|
|
|
struct type_query *type_query;
|
|
|
|
|
|
|
|
assert(codw_hop);
|
|
|
|
assert(codw_hop->type_query);
|
|
|
|
assert(codw_hop->type_query->uri);
|
|
|
|
assert(codw_hop->type_query->ses);
|
|
|
|
|
|
|
|
type_query = codw_hop->type_query;
|
|
|
|
if (!codw_hop->real_file) goto cancel;
|
|
|
|
|
|
|
|
file_download = init_file_download(type_query->uri, type_query->ses,
|
|
|
|
codw_hop->real_file, fd);
|
|
|
|
if (!file_download) goto cancel;
|
|
|
|
|
|
|
|
if (type_query->external_handler) {
|
|
|
|
file_download->external_handler = subst_file(type_query->external_handler,
|
|
|
|
codw_hop->file);
|
|
|
|
file_download->delete = 1;
|
|
|
|
mem_free(codw_hop->file);
|
|
|
|
mem_free_set(&type_query->external_handler, NULL);
|
|
|
|
}
|
|
|
|
|
|
|
|
file_download->block = !!type_query->block;
|
|
|
|
|
|
|
|
/* Done here and not in init_file_download() so that the external
|
|
|
|
* handler can become initialized. */
|
|
|
|
display_download(term, file_download, type_query->ses);
|
|
|
|
|
2006-02-03 04:44:28 -05:00
|
|
|
move_download(&type_query->download, &file_download->download, PRI_DOWNLOAD);
|
2005-09-15 09:58:31 -04:00
|
|
|
done_type_query(type_query);
|
|
|
|
|
|
|
|
mem_free(codw_hop);
|
|
|
|
return;
|
|
|
|
|
|
|
|
cancel:
|
|
|
|
if (type_query->external_handler) mem_free_if(codw_hop->file);
|
|
|
|
tp_cancel(type_query);
|
|
|
|
mem_free(codw_hop);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
continue_download(void *data, unsigned char *file)
|
|
|
|
{
|
|
|
|
struct type_query *type_query = data;
|
|
|
|
struct codw_hop *codw_hop = mem_calloc(1, sizeof(*codw_hop));
|
|
|
|
|
|
|
|
if (!codw_hop) {
|
|
|
|
tp_cancel(type_query);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (type_query->external_handler) {
|
|
|
|
/* FIXME: get_temp_name() calls tempnam(). --Zas */
|
|
|
|
file = get_temp_name(type_query->uri);
|
|
|
|
if (!file) {
|
|
|
|
mem_free(codw_hop);
|
|
|
|
tp_cancel(type_query);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
codw_hop->type_query = type_query;
|
|
|
|
codw_hop->file = file;
|
2006-07-16 08:46:46 -04:00
|
|
|
codw_hop->magic = CONTINUE_DOWNLOAD_DO;
|
2005-09-15 09:58:31 -04:00
|
|
|
|
|
|
|
kill_downloads_to_file(file);
|
|
|
|
|
|
|
|
create_download_file(type_query->ses->tab->term, file,
|
|
|
|
&codw_hop->real_file,
|
|
|
|
!!type_query->external_handler, 0,
|
|
|
|
continue_download_do, codw_hop);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static struct type_query *
|
|
|
|
init_type_query(struct session *ses, struct download *download,
|
|
|
|
struct cache_entry *cached)
|
|
|
|
{
|
|
|
|
struct type_query *type_query;
|
|
|
|
|
|
|
|
/* There can be only one ... */
|
|
|
|
foreach (type_query, ses->type_queries)
|
|
|
|
if (compare_uri(type_query->uri, ses->loading_uri, 0))
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
type_query = mem_calloc(1, sizeof(*type_query));
|
|
|
|
if (!type_query) return NULL;
|
|
|
|
|
|
|
|
type_query->uri = get_uri_reference(ses->loading_uri);
|
|
|
|
type_query->ses = ses;
|
|
|
|
type_query->target_frame = null_or_stracpy(ses->task.target.frame);
|
|
|
|
|
|
|
|
type_query->cached = cached;
|
2008-03-13 17:53:31 -04:00
|
|
|
type_query->cgi = cached->cgi;
|
2005-09-15 09:58:31 -04:00
|
|
|
object_lock(type_query->cached);
|
|
|
|
|
2006-02-03 04:44:28 -05:00
|
|
|
move_download(download, &type_query->download, PRI_MAIN);
|
2008-08-03 08:24:26 -04:00
|
|
|
download->state = connection_state(S_OK);
|
2005-09-15 09:58:31 -04:00
|
|
|
|
|
|
|
add_to_list(ses->type_queries, type_query);
|
|
|
|
|
|
|
|
return type_query;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
done_type_query(struct type_query *type_query)
|
|
|
|
{
|
|
|
|
/* Unregister any active download */
|
2006-02-12 10:41:21 -05:00
|
|
|
cancel_download(&type_query->download, 0);
|
2005-09-15 09:58:31 -04:00
|
|
|
|
|
|
|
object_unlock(type_query->cached);
|
|
|
|
done_uri(type_query->uri);
|
|
|
|
mem_free_if(type_query->external_handler);
|
|
|
|
mem_free_if(type_query->target_frame);
|
|
|
|
del_from_list(type_query);
|
|
|
|
mem_free(type_query);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
tp_cancel(void *data)
|
|
|
|
{
|
|
|
|
struct type_query *type_query = data;
|
2006-02-03 04:44:28 -05:00
|
|
|
|