1 /** Sessions managment - you'll find things here which you wouldn't expect
14 #include "bfu/dialog.h"
15 #include "bookmarks/bookmarks.h"
16 #include "cache/cache.h"
17 #include "config/home.h"
18 #include "config/options.h"
19 #include "dialogs/menu.h"
20 #include "dialogs/status.h"
21 #include "document/html/frames.h"
22 #include "document/html/parser.h"
23 #include "document/html/renderer.h"
24 #include "document/refresh.h"
25 #include "document/view.h"
26 #include "globhist/globhist.h"
27 #include "intl/gettext/libintl.h"
28 #include "main/event.h"
29 #include "main/object.h"
30 #include "main/timer.h"
31 #include "network/connection.h"
32 #include "network/state.h"
33 #include "osdep/newwin.h"
34 #include "protocol/protocol.h"
35 #include "protocol/uri.h"
36 #include "session/download.h"
37 #include "session/history.h"
38 #include "session/location.h"
39 #include "session/session.h"
40 #include "session/task.h"
41 #include "terminal/tab.h"
42 #include "terminal/terminal.h"
43 #include "terminal/window.h"
44 #include "util/conv.h"
45 #include "util/error.h"
46 #include "util/memlist.h"
47 #include "util/memory.h"
48 #include "util/string.h"
49 #include "util/time.h"
50 #include "viewer/text/draw.h"
51 #include "viewer/text/form.h"
52 #include "viewer/text/link.h"
53 #include "viewer/text/view.h"
57 LIST_HEAD(struct file_to_load
);
60 unsigned int req_sent
:1;
62 struct cache_entry
*cached
;
63 unsigned char *target_frame
;
65 struct download download
;
68 /** This structure and related functions are used to maintain information
69 * for instances opened in new windows. We store all related session info like
70 * URI and base session to clone from so that when the new instance connects
71 * we can look up this information. In case of failure the session information
74 LIST_HEAD(struct session_info
);
82 enum cache_mode cache_mode
;
85 #define file_to_load_is_active(ftl) ((ftl)->req_sent && is_in_progress_state((ftl)->download.state))
88 INIT_LIST_OF(struct session
, sessions
);
90 enum remote_session_flags remote_session_flags
;
93 static struct file_to_load
*request_additional_file(struct session
*,
97 static window_handler_T tabwin_func
;
100 static INIT_LIST_OF(struct session_info
, session_info
);
101 static int session_info_id
= 1;
103 static struct session_info
*
104 get_session_info(int id
)
106 struct session_info
*info
;
108 foreach (info
, session_info
) {
111 if (info
->id
!= id
) continue;
113 /* Make sure the info->ses session is still with us. */
114 foreach (ses
, sessions
)
115 if (ses
== info
->ses
)
126 done_session_info(struct session_info
*info
)
129 kill_timer(&info
->timer
);
131 if (info
->uri
) done_uri(info
->uri
);
132 if (info
->referrer
) done_uri(info
->referrer
);
137 done_saved_session_info(void)
139 while (!list_empty(session_info
))
140 done_session_info(session_info
.next
);
143 /** Timer callback for session_info.timer. As explained in install_timer(),
144 * this function must erase the expired timer ID from all variables. */
146 session_info_timeout(int id
)
148 struct session_info
*info
= get_session_info(id
);
151 info
->timer
= TIMER_ID_UNDEF
;
152 /* The expired timer ID has now been erased. */
153 done_session_info(info
);
157 add_session_info(struct session
*ses
, struct uri
*uri
, struct uri
*referrer
,
158 enum cache_mode cache_mode
, enum task_type task
)
160 struct session_info
*info
= mem_calloc(1, sizeof(*info
));
162 if (!info
) return -1;
164 info
->id
= session_info_id
++;
165 /* I don't know what a reasonable start up time for a new instance is
166 * but it won't hurt to have a few seconds atleast. --jonas */
167 install_timer(&info
->timer
, (milliseconds_T
) 10000,
168 (void (*)(void *)) session_info_timeout
,
169 (void *) (long) info
->id
);
173 info
->cache_mode
= cache_mode
;
175 if (uri
) info
->uri
= get_uri_reference(uri
);
176 if (referrer
) info
->referrer
= get_uri_reference(referrer
);
178 add_to_list(session_info
, info
);
183 static struct session
*
184 init_saved_session(struct terminal
*term
, int id
)
186 struct session_info
*info
= get_session_info(id
);
189 if (!info
) return NULL
;
191 ses
= init_session(info
->ses
, term
, info
->uri
, 0);
194 done_session_info(info
);
198 /* Only do the ses_goto()-thing for target=_blank. */
199 if (info
->uri
&& info
->task
!= TASK_NONE
) {
200 /* The init_session() call would have started the download but
201 * not with the requested cache mode etc. so interrupt that
203 abort_loading(ses
, 1);
205 ses
->reloadlevel
= info
->cache_mode
;
206 set_session_referrer(ses
, info
->referrer
);
207 ses_goto(ses
, info
->uri
, NULL
, NULL
, info
->cache_mode
,
211 done_session_info(info
);
216 static struct session
*
217 get_master_session(void)
221 foreach (ses
, sessions
)
222 if (ses
->tab
->term
->master
) {
223 struct window
*current_tab
= get_current_tab(ses
->tab
->term
);
225 return current_tab
? current_tab
->data
: NULL
;
231 /** @relates session */
233 get_current_download(struct session
*ses
)
235 struct download
*download
= NULL
;
237 if (!ses
) return NULL
;
240 download
= &ses
->loading
;
241 else if (have_location(ses
))
242 download
= &cur_loc(ses
)->download
;
244 if (download
&& download
->state
== S_OK
) {
245 struct file_to_load
*ftl
;
247 foreach (ftl
, ses
->more_files
)
248 if (file_to_load_is_active(ftl
))
249 return &ftl
->download
;
252 /* Note that @download isn't necessarily NULL here,
253 * if @ses->more_files is empty. -- Miciah */
258 print_error_dialog(struct session
*ses
, enum connection_state state
,
259 struct uri
*uri
, enum connection_priority priority
)
262 unsigned char *uristring
;
264 /* Don't show error dialogs for missing CSS stylesheets */
265 if (priority
== PRI_CSS
266 || !init_string(&msg
))
269 uristring
= uri
? get_uri_string(uri
, URI_PUBLIC
) : NULL
;
272 if (ses
->tab
->term
->utf8_cp
)
273 decode_uri(uristring
);
275 #endif /* CONFIG_UTF8 */
276 decode_uri_for_display(uristring
);
277 add_format_to_string(&msg
,
278 _("Unable to retrieve %s", ses
->tab
->term
),
281 add_to_string(&msg
, ":\n\n");
284 add_to_string(&msg
, get_state_message(state
, ses
->tab
->term
));
286 info_box(ses
->tab
->term
, MSGBOX_FREE_TEXT
,
287 N_("Error"), ALIGN_CENTER
,
294 abort_files_load(struct session
*ses
, int interrupt
)
297 struct file_to_load
*ftl
;
300 foreach (ftl
, ses
->more_files
) {
301 if (!file_to_load_is_active(ftl
))
305 cancel_download(&ftl
->download
, interrupt
);
313 free_files(struct session
*ses
)
315 struct file_to_load
*ftl
;
317 abort_files_load(ses
, 0);
318 foreach (ftl
, ses
->more_files
) {
319 if (ftl
->cached
) object_unlock(ftl
->cached
);
320 if (ftl
->uri
) done_uri(ftl
->uri
);
321 mem_free_if(ftl
->target_frame
);
323 free_list(ses
->more_files
);
329 static void request_frameset(struct session
*, struct frameset_desc
*, int);
332 request_frame(struct session
*ses
, unsigned char *name
,
333 struct uri
*uri
, int depth
)
335 struct location
*loc
= cur_loc(ses
);
338 assertm(have_location(ses
), "request_frame: no location");
339 if_assert_failed
return;
341 foreach (frame
, loc
->frames
) {
342 struct document_view
*doc_view
;
344 if (strcasecmp(frame
->name
, name
))
347 foreach (doc_view
, ses
->scrn_frames
) {
348 if (doc_view
->vs
== &frame
->vs
&& doc_view
->document
->frame_desc
) {
349 request_frameset(ses
, doc_view
->document
->frame_desc
, depth
);
354 request_additional_file(ses
, name
, frame
->vs
.uri
, PRI_FRAME
);
358 frame
= mem_calloc(1, sizeof(*frame
));
361 frame
->name
= stracpy(name
);
367 init_vs(&frame
->vs
, uri
, -1);
369 add_to_list(loc
->frames
, frame
);
371 request_additional_file(ses
, name
, frame
->vs
.uri
, PRI_FRAME
);
375 request_frameset(struct session
*ses
, struct frameset_desc
*frameset_desc
, int depth
)
379 if (depth
> HTML_MAX_FRAME_DEPTH
) return;
381 depth
++; /* Inheritation counter (recursion brake ;) */
383 for (i
= 0; i
< frameset_desc
->n
; i
++) {
384 struct frame_desc
*frame_desc
= &frameset_desc
->frame_desc
[i
];
386 if (frame_desc
->subframe
) {
387 request_frameset(ses
, frame_desc
->subframe
, depth
);
388 } else if (frame_desc
->name
&& frame_desc
->uri
) {
389 request_frame(ses
, frame_desc
->name
,
390 frame_desc
->uri
, depth
);
397 load_css_imports(struct session
*ses
, struct document_view
*doc_view
)
399 struct document
*document
= doc_view
->document
;
403 if (!document
) return;
405 foreach_uri (uri
, index
, &document
->css_imports
) {
406 request_additional_file(ses
, "", uri
, PRI_CSS
);
410 #define load_css_imports(ses, doc_view)
413 #ifdef CONFIG_ECMASCRIPT
415 load_ecmascript_imports(struct session
*ses
, struct document_view
*doc_view
)
417 struct document
*document
= doc_view
->document
;
421 if (!document
) return;
423 foreach_uri (uri
, index
, &document
->ecmascript_imports
) {
424 request_additional_file(ses
, "", uri
, /* XXX */ PRI_CSS
);
428 #define load_ecmascript_imports(ses, doc_view)
432 load_frames(struct session
*ses
, struct document_view
*doc_view
)
434 struct document
*document
= doc_view
->document
;
436 if (!document
|| !document
->frame_desc
) return;
437 request_frameset(ses
, document
->frame_desc
, 0);
439 foreach (doc_view
, ses
->scrn_frames
) {
440 load_css_imports(ses
, doc_view
);
441 load_ecmascript_imports(ses
, doc_view
);
445 /** Timer callback for session.display_timer. As explained in install_timer(),
446 * this function must erase the expired timer ID from all variables. */
448 display_timer(struct session
*ses
)
450 timeval_T start
, stop
, duration
;
454 draw_formatted(ses
, 3);
456 timeval_sub(&duration
, &start
, &stop
);
458 t
= mult_ms(timeval_to_milliseconds(&duration
), DISPLAY_TIME
);
459 if (t
< DISPLAY_TIME_MIN
) t
= DISPLAY_TIME_MIN
;
460 install_timer(&ses
->display_timer
, t
,
461 (void (*)(void *)) display_timer
,
463 /* The expired timer ID has now been erased. */
465 load_frames(ses
, ses
->doc_view
);
466 load_css_imports(ses
, ses
->doc_view
);
467 load_ecmascript_imports(ses
, ses
->doc_view
);
468 process_file_requests(ses
);
472 struct questions_entry
{
473 LIST_HEAD(struct questions_entry
);
475 void (*callback
)(struct session
*, void *);
479 INIT_LIST_OF(struct questions_entry
, questions_queue
);
483 check_questions_queue(struct session
*ses
)
485 while (!list_empty(questions_queue
)) {
486 struct questions_entry
*q
= questions_queue
.next
;
488 q
->callback(ses
, q
->data
);
495 add_questions_entry(void (*callback
)(struct session
*, void *), void *data
)
497 struct questions_entry
*q
= mem_alloc(sizeof(*q
));
501 q
->callback
= callback
;
503 add_to_list(questions_queue
, q
);
506 #ifdef CONFIG_SCRIPTING
508 maybe_pre_format_html(struct cache_entry
*cached
, struct session
*ses
)
510 struct fragment
*fragment
;
511 static int pre_format_html_event
= EVENT_NONE
;
513 if (!cached
|| cached
->preformatted
)
516 fragment
= get_cache_fragment(cached
);
517 if (!fragment
) return;
519 /* We cannot do anything if the data are fragmented. */
520 if (!list_is_singleton(cached
->frag
)) return;
522 set_event_id(pre_format_html_event
, "pre-format-html");
523 trigger_event(pre_format_html_event
, ses
, cached
);
525 /* XXX: Keep this after the trigger_event, because hooks might call
526 * normalize_cache_entry()! */
527 cached
->preformatted
= 1;
532 check_incomplete_redirects(struct cache_entry
*cached
)
536 cached
= follow_cached_redirects(cached
);
537 if (cached
&& !cached
->redirect
) {
538 /* XXX: This is not quite true, but does that difference
540 return cached
->incomplete
;
547 session_is_loading(struct session
*ses
)
549 struct download
*download
= get_current_download(ses
);
551 if (!download
) return 0;
553 if (!is_in_result_state(download
->state
))
556 /* The validness of download->cached (especially the download struct in
557 * ses->loading) is hard to maintain so check before using it.
558 * Related to bug 559. */
560 && cache_entry_is_valid(download
->cached
)
561 && check_incomplete_redirects(download
->cached
))
568 doc_loading_callback(struct download
*download
, struct session
*ses
)
572 if (is_in_result_state(download
->state
)) {
573 #ifdef CONFIG_SCRIPTING
574 maybe_pre_format_html(download
->cached
, ses
);
576 kill_timer(&ses
->display_timer
);
578 draw_formatted(ses
, 1);
580 if (get_cmd_opt_bool("auto-submit")) {
581 if (!list_empty(ses
->doc_view
->document
->forms
)) {
582 get_cmd_opt_bool("auto-submit") = 0;
587 load_frames(ses
, ses
->doc_view
);
588 load_css_imports(ses
, ses
->doc_view
);
589 load_ecmascript_imports(ses
, ses
->doc_view
);
590 process_file_requests(ses
);
593 && ses
->doc_view
->document
594 && ses
->doc_view
->document
->refresh
595 && get_opt_bool("document.browse.refresh")) {
596 start_document_refresh(ses
->doc_view
->document
->refresh
,
600 if (download
->state
!= S_OK
) {
601 print_error_dialog(ses
, download
->state
,
602 ses
->doc_view
->document
->uri
,
606 } else if (is_in_transfering_state(download
->state
)
607 && ses
->display_timer
== TIMER_ID_UNDEF
) {
611 check_questions_queue(ses
);
612 print_screen_status(ses
);
614 #ifdef CONFIG_GLOBHIST
615 if (download
->pri
!= PRI_CSS
) {
616 unsigned char *title
= ses
->doc_view
->document
->title
;
620 uri
= download
->conn
->proxied_uri
;
621 else if (download
->cached
)
622 uri
= download
->cached
->uri
;
627 add_global_history_item(struri(uri
), title
, time(NULL
));
631 if (submit
) auto_submit_form(ses
);
635 file_loading_callback(struct download
*download
, struct file_to_load
*ftl
)
637 if (ftl
->download
.cached
&& ftl
->cached
!= ftl
->download
.cached
) {
638 if (ftl
->cached
) object_unlock(ftl
->cached
);
639 ftl
->cached
= ftl
->download
.cached
;
640 object_lock(ftl
->cached
);
643 /* FIXME: We need to do content-type check here! However, we won't
644 * handle properly the "Choose action" dialog now :(. */
645 if (ftl
->cached
&& !ftl
->cached
->redirect_get
&& download
->pri
!= PRI_CSS
) {
646 struct session
*ses
= ftl
->ses
;
647 struct uri
*loading_uri
= ses
->loading_uri
;
648 unsigned char *target_frame
= ses
->task
.target
.frame
;
650 ses
->loading_uri
= ftl
->uri
;
651 ses
->task
.target
.frame
= ftl
->target_frame
;
652 setup_download_handler(ses
, &ftl
->download
, ftl
->cached
, 1);
653 ses
->loading_uri
= loading_uri
;
654 ses
->task
.target
.frame
= target_frame
;
657 doc_loading_callback(download
, ftl
->ses
);
660 static struct file_to_load
*
661 request_additional_file(struct session
*ses
, unsigned char *name
, struct uri
*uri
, int pri
)
663 struct file_to_load
*ftl
;
665 if (uri
->protocol
== PROTOCOL_UNKNOWN
) {
669 /* XXX: We cannot run the external handler here, because
670 * request_additional_file() is called many times for a single URL
671 * (normally the foreach() right below catches them all). Anyway,
672 * having <frame src="mailto:foo"> would be just weird, wouldn't it?
674 if (get_protocol_external_handler(ses
->tab
->term
, uri
)) {
678 foreach (ftl
, ses
->more_files
) {
679 if (compare_uri(ftl
->uri
, uri
, URI_BASE
)) {
680 if (ftl
->pri
> pri
) {
682 move_download(&ftl
->download
, &ftl
->download
, pri
);
688 ftl
= mem_calloc(1, sizeof(*ftl
));
689 if (!ftl
) return NULL
;
691 ftl
->uri
= get_uri_reference(uri
);
692 ftl
->target_frame
= stracpy(name
);
693 ftl
->download
.callback
= (download_callback_T
*) file_loading_callback
;
694 ftl
->download
.data
= ftl
;
698 add_to_list(ses
->more_files
, ftl
);
704 load_additional_file(struct file_to_load
*ftl
, enum cache_mode cache_mode
)
706 struct document_view
*doc_view
= current_frame(ftl
->ses
);
707 struct uri
*referrer
= doc_view
&& doc_view
->document
708 ? doc_view
->document
->uri
: NULL
;
710 load_uri(ftl
->uri
, referrer
, &ftl
->download
, ftl
->pri
, cache_mode
, -1);
714 process_file_requests(struct session
*ses
)
716 if (ses
->status
.processing_file_requests
) return;
717 ses
->status
.processing_file_requests
= 1;
720 struct file_to_load
*ftl
;
723 foreach (ftl
, ses
->more_files
) {
729 load_additional_file(ftl
, CACHE_MODE_NORMAL
);
736 ses
->status
.processing_file_requests
= 0;
741 dialog_goto_url_open(void *data
)
743 dialog_goto_url((struct session
*) data
, NULL
);
746 /** @returns 0 if the first session was not properly initialized and
747 * setup_session() should be called on the session as well. */
749 setup_first_session(struct session
*ses
, struct uri
*uri
)
751 /* [gettext_accelerator_context(setup_first_session)] */
752 struct terminal
*term
= ses
->tab
->term
;
754 if (!*get_opt_str("protocol.http.user_agent")) {
756 N_("Warning"), ALIGN_CENTER
,
757 N_("You have empty string in protocol.http.user_agent - "
758 "this was a default value in the past, substituted by "
759 "default ELinks User-Agent string. However, currently "
760 "this means that NO User-Agent HEADER "
761 "WILL BE SENT AT ALL - if this is really what you want, "
762 "set its value to \" \", otherwise please delete line "
763 "with this settings from your configuration file (if you "
764 "have no idea what I'm talking about, just do this), so "
765 "that correct default setting will be used. Apologies for "
766 "any inconvience caused."));
769 if (!get_opt_bool("config.saving_style_w")) {
770 struct option
*opt
= get_opt_rec(config_options
, "config.saving_style_w");
771 opt
->value
.number
= 1;
772 option_changed(ses
, opt
);
773 if (get_opt_int("config.saving_style") != 3) {
775 N_("Warning"), ALIGN_CENTER
,
776 N_("You have option config.saving_style set to "
777 "a de facto obsolete value. The configuration "
778 "saving algorithms of ELinks were changed from "
779 "the last time you upgraded ELinks. Now, only "
780 "those options which you actually changed are "
781 "saved to the configuration file, instead of "
782 "just all the options. This simplifies our "
783 "situation greatly when we see that some option "
784 "has inappropriate default value or we need to "
785 "change semantic of some option in a subtle way. "
786 "Thus, we recommend you to change the value of "
787 "config.saving_style option to 3 in order to get "
788 "the \"right\" behaviour. Apologies for any "
789 "inconvience caused."));
794 /* Only open the goto URL dialog if no URI was passed on the
796 void *handler
= uri
? NULL
: dialog_goto_url_open
;
800 msg_box(term
, NULL
, 0,
801 N_("Welcome"), ALIGN_CENTER
,
802 N_("Welcome to ELinks!\n\n"
803 "Press ESC for menu. Documentation is available in "
806 MSG_BOX_BUTTON(N_("~OK"), handler
, B_ENTER
| B_ESC
));
808 /* If there is no URI the goto dialog will pop up so there is
809 * no need to call setup_session(). */
812 #ifdef CONFIG_BOOKMARKS
813 } else if (!uri
&& get_opt_bool("ui.sessions.auto_restore")) {
814 unsigned char *folder
;
816 folder
= get_opt_str("ui.sessions.auto_save_foldername");
817 open_bookmark_folder(ses
, folder
);
822 /* If there's a URI to load we have to call */
826 /** First load the current URI of the base session. In most cases it will just
827 * be fetched from the cache so that the new tab will not appear ``empty' while
828 * loading the real URI or showing the goto URL dialog. */
830 setup_session(struct session
*ses
, struct uri
*uri
, struct session
*base
)
832 if (base
&& have_location(base
)) {
833 goto_uri(ses
, cur_loc(base
)->vs
.uri
);
834 if (ses
->doc_view
&& ses
->doc_view
->vs
835 && base
->doc_view
&& base
->doc_view
->vs
) {
836 struct view_state
*vs
= ses
->doc_view
->vs
;
839 copy_vs(vs
, base
->doc_view
->vs
);
846 } else if (!goto_url_home(ses
)) {
847 if (get_opt_bool("ui.startup_goto_dialog")) {
848 dialog_goto_url_open(ses
);
853 /** @relates session */
855 init_session(struct session
*base_session
, struct terminal
*term
,
856 struct uri
*uri
, int in_background
)
858 struct session
*ses
= mem_calloc(1, sizeof(*ses
));
860 if (!ses
) return NULL
;
862 ses
->tab
= init_tab(term
, ses
, tabwin_func
);
868 create_history(&ses
->history
);
869 init_list(ses
->scrn_frames
);
870 init_list(ses
->more_files
);
871 init_list(ses
->type_queries
);
872 ses
->task
.type
= TASK_NONE
;
873 ses
->display_timer
= TIMER_ID_UNDEF
;
876 init_led_panel(&ses
->status
.leds
);
877 ses
->status
.ssl_led
= register_led(ses
, 0);
878 ses
->status
.insert_mode_led
= register_led(ses
, 1);
879 ses
->status
.ecmascript_led
= register_led(ses
, 2);
880 ses
->status
.popup_led
= register_led(ses
, 3);
882 ses
->status
.force_show_status_bar
= -1;
883 ses
->status
.force_show_title_bar
= -1;
885 add_to_list(sessions
, ses
);
887 /* Update the status -- most importantly the info about whether to the
888 * show the title, tab and status bar -- _before_ loading the URI so
889 * the document cache is not filled with useless documents if the
890 * content is already cached.
892 * For big document it also reduces memory usage quite a bit because
893 * (atleast that is my interpretation --jonas) the old document will
894 * have a chance to be released before rendering a new one. A few
895 * numbers when opening a new tab while viewing debians package list
898 * 9307 jonas 15 0 34252 30m 5088 S 0.0 12.2 0:03.63 elinks-old
899 * 9305 jonas 15 0 17060 13m 5088 S 0.0 5.5 0:02.07 elinks-new
903 /* Check if the newly inserted session is the only in the list and do
904 * the special setup for the first session, */
905 if (!list_is_singleton(sessions
) || !setup_first_session(ses
, uri
)) {
906 setup_session(ses
, uri
, base_session
);
910 switch_to_tab(term
, get_tab_number(ses
->tab
), -1);
912 if (!term
->main_menu
) activate_bfu_technology(ses
, -1);
917 init_remote_session(struct session
*ses
, enum remote_session_flags
*remote_ptr
,
920 enum remote_session_flags remote
= *remote_ptr
;
922 if (remote
& SES_REMOTE_CURRENT_TAB
) {
924 /* Mask out the current tab flag */
925 *remote_ptr
= remote
& ~SES_REMOTE_CURRENT_TAB
;
927 /* Remote session was masked out. Open all following URIs in
930 *remote_ptr
= SES_REMOTE_NEW_TAB
;
932 } else if (remote
& SES_REMOTE_NEW_TAB
) {
933 /* FIXME: This is not perfect. Doing multiple -remote
934 * with no URLs will make the goto dialogs
935 * inaccessible. Maybe we should not support this kind
936 * of thing or make the window focus detecting code
937 * more intelligent. --jonas */
938 open_uri_in_new_tab(ses
, uri
, 0, 1);
940 if (remote
& SES_REMOTE_PROMPT_URL
) {
941 dialog_goto_url_open(ses
);
944 } else if (remote
& SES_REMOTE_NEW_WINDOW
) {
945 /* FIXME: It is quite rude because we just take the first
946 * possibility and should maybe make it possible to specify
947 * new-screen etc via -remote "openURL(..., new-*)" --jonas */
948 if (!can_open_in_new(ses
->tab
->term
))
951 open_uri_in_new_window(ses
, uri
, NULL
,
952 ses
->tab
->term
->environment
,
953 CACHE_MODE_NORMAL
, TASK_NONE
);
955 } else if (remote
& SES_REMOTE_ADD_BOOKMARK
) {
956 #ifdef CONFIG_BOOKMARKS
958 add_bookmark(NULL
, 1, struri(uri
), struri(uri
));
961 } else if (remote
& SES_REMOTE_INFO_BOX
) {
966 text
= memacpy(uri
->data
, uri
->datalen
);
969 info_box(ses
->tab
->term
, MSGBOX_FREE_TEXT
,
970 N_("Error"), ALIGN_CENTER
,
973 } else if (remote
& SES_REMOTE_PROMPT_URL
) {
974 dialog_goto_url_open(ses
);
981 encode_session_info(struct string
*info
,
982 LIST_OF(struct string_list_item
) *url_list
)
984 struct string_list_item
*url
;
986 if (!init_string(info
)) return NULL
;
988 foreach (url
, *url_list
) {
989 struct string
*str
= &url
->string
;
991 add_bytes_to_string(info
, str
->source
, str
->length
+ 1);
997 /** Older elinks versions (up to and including 0.9.1) sends no magic variable and if
998 * this is detected we fallback to the old session info format. For this format
999 * the magic member of terminal_info hold the length of the URI string. The
1000 * old format is handled by the default label in the switch.
1002 * The new session info format supports extraction of multiple URIS from the
1003 * terminal_info data member. The magic variable controls how to interpret
1006 * - INTERLINK_NORMAL_MAGIC means use the terminal_info session_info
1007 * variable as an id for a saved session.
1009 * - INTERLINK_REMOTE_MAGIC means use the terminal_info session_info
1010 * variable as the remote session flags. */
1012 decode_session_info(struct terminal
*term
, struct terminal_info
*info
)
1014 int len
= info
->length
;
1015 struct session
*base_session
= NULL
;
1016 enum remote_session_flags remote
= 0;
1019 switch (info
->magic
) {
1020 case INTERLINK_NORMAL_MAGIC
:
1021 /* Lookup if there are any saved sessions that should be
1022 * resumed using the session_info as an id. The id is derived
1023 * from the value of -base-session command line option in the
1024 * connecting instance.
1026 * At the moment it is only used when opening instances in new
1027 * window to figure out how to initialize it when the new
1028 * instance connects to the master.
1030 * We don't need to handle it for the old format since new
1031 * instances connecting this way will always be of the same
1032 * origin as the master. */
1033 if (init_saved_session(term
, info
->session_info
))
1037 case INTERLINK_REMOTE_MAGIC
:
1038 /* This could mean some fatal bug but I am unsure if we can
1039 * actually assert it since people could pour all kinds of crap
1040 * down the socket. */
1041 if (!info
->session_info
) {
1042 INTERNAL("Remote magic with no remote flags");
1046 remote
= info
->session_info
;
1048 /* If processing session info from a -remote instance we want
1049 * to hook up with the master so we can handle request for
1050 * stuff in current tab. */
1051 base_session
= get_master_session();
1052 if (!base_session
) return 0;
1057 /* The old format calculates the session_info and magic members
1058 * as part of the data that should be decoded so we have to
1059 * substract it to get the size of the actual URI data. */
1060 len
-= sizeof(info
->session_info
) + sizeof(info
->magic
);
1062 /* Extract URI containing @magic bytes */
1063 if (info
->magic
<= 0 || info
->magic
> len
)
1071 return !!init_session(base_session
, term
, NULL
, 0);
1073 /* Even though there are no URIs we still have to
1074 * handle remote stuff. */
1075 init_remote_session(base_session
, &remote
, NULL
);
1081 /* Extract multiple (possible) NUL terminated URIs */
1083 unsigned char *end
= memchr(str
, 0, len
);
1084 int urilength
= end
? end
- str
: len
;
1085 struct uri
*uri
= NULL
;
1086 unsigned char *uristring
= memacpy(str
, urilength
);
1089 uri
= get_hooked_uri(uristring
, base_session
, term
->cwd
);
1090 mem_free(uristring
);
1093 len
-= urilength
+ 1;
1094 str
+= urilength
+ 1;
1099 init_remote_session(base_session
, &remote
, uri
);
1102 int backgrounded
= !list_empty(term
->windows
);
1104 struct session
*ses
;
1107 uri
= get_uri("about:blank", 0);
1109 ses
= init_session(base_session
, term
, uri
, backgrounded
);
1111 /* End loop if initialization fails */
1113 } else if (bad_url
) {
1114 print_error_dialog(ses
, S_BAD_URL
, NULL
, PRI_MAIN
);
1119 if (uri
) done_uri(uri
);
1122 /* If we only initialized remote sessions or didn't manage to add any
1123 * new tabs return zero so the terminal will be destroyed ASAP. */
1124 return remote
? 0 : !list_empty(term
->windows
);
1129 abort_loading(struct session
*ses
, int interrupt
)
1131 if (have_location(ses
)) {
1132 struct location
*loc
= cur_loc(ses
);
1134 cancel_download(&loc
->download
, interrupt
);
1135 abort_files_load(ses
, interrupt
);
1137 abort_preloading(ses
, interrupt
);
1141 destroy_session(struct session
*ses
)
1143 struct document_view
*doc_view
;
1146 if_assert_failed
return;
1148 destroy_downloads(ses
);
1149 abort_loading(ses
, 0);
1151 if (ses
->doc_view
) {
1152 detach_formatted(ses
->doc_view
);
1153 mem_free(ses
->doc_view
);
1156 foreach (doc_view
, ses
->scrn_frames
)
1157 detach_formatted(doc_view
);
1159 free_list(ses
->scrn_frames
);
1161 destroy_history(&ses
->history
);
1162 set_session_referrer(ses
, NULL
);
1164 if (ses
->loading_uri
) done_uri(ses
->loading_uri
);
1166 kill_timer(&ses
->display_timer
);
1168 while (!list_empty(ses
->type_queries
))
1169 done_type_query(ses
->type_queries
.next
);
1171 if (ses
->download_uri
) done_uri(ses
->download_uri
);
1172 mem_free_if(ses
->search_word
);
1173 mem_free_if(ses
->last_search_word
);
1174 mem_free_if(ses
->status
.last_title
);
1175 #ifdef CONFIG_ECMASCRIPT
1176 mem_free_if(ses
->status
.window_status
);
1182 reload(struct session
*ses
, enum cache_mode cache_mode
)
1184 abort_loading(ses
, 0);
1186 if (cache_mode
== CACHE_MODE_INCREMENT
) {
1187 cache_mode
= CACHE_MODE_NEVER
;
1188 if (ses
->reloadlevel
< CACHE_MODE_NEVER
)
1189 cache_mode
= ++ses
->reloadlevel
;
1191 ses
->reloadlevel
= cache_mode
;
1194 if (have_location(ses
)) {
1195 struct location
*loc
= cur_loc(ses
);
1196 struct file_to_load
*ftl
;
1198 #ifdef CONFIG_ECMASCRIPT
1199 loc
->vs
.ecmascript_fragile
= 1;
1202 /* FIXME: When reloading use loading_callback and set up a
1203 * session task so that the reloading will work even when the
1204 * reloaded document contains redirects. This is needed atleast
1205 * when reloading HTTP auth document after the user has entered
1207 loc
->download
.data
= ses
;
1208 loc
->download
.callback
= (download_callback_T
*) doc_loading_callback
;
1210 load_uri(loc
->vs
.uri
, ses
->referrer
, &loc
->download
, PRI_MAIN
, cache_mode
, -1);
1212 foreach (ftl
, ses
->more_files
) {
1213 if (file_to_load_is_active(ftl
))
1216 ftl
->download
.data
= ftl
;
1217 ftl
->download
.callback
= (download_callback_T
*) file_loading_callback
;
1219 load_additional_file(ftl
, cache_mode
);
1226 ses_find_frame(struct session
*ses
, unsigned char *name
)
1228 struct location
*loc
= cur_loc(ses
);
1229 struct frame
*frame
;
1231 assertm(have_location(ses
), "ses_request_frame: no location yet");
1232 if_assert_failed
return NULL
;
1234 foreachback (frame
, loc
->frames
)
1235 if (!strcasecmp(frame
->name
, name
))
1242 set_session_referrer(struct session
*ses
, struct uri
*referrer
)
1244 if (ses
->referrer
) done_uri(ses
->referrer
);
1245 ses
->referrer
= referrer
? get_uri_reference(referrer
) : NULL
;
1249 tabwin_func(struct window
*tab
, struct term_event
*ev
)
1251 struct session
*ses
= tab
->data
;
1255 if (ses
) destroy_session(ses
);
1256 if (!list_empty(sessions
)) update_status();
1263 if (!ses
|| ses
->tab
!= get_current_tab(ses
->tab
->term
))
1266 draw_formatted(ses
, tab
->resize
);
1268 load_frames(ses
, ses
->doc_view
);
1269 process_file_requests(ses
);
1272 print_screen_status(ses
);
1277 /* This check is related to bug 296 */
1278 assert(ses
->tab
== get_current_tab(ses
->tab
->term
));
1279 send_event(ses
, ev
);
1285 * Gets the url being viewed by this session. Writes it into @a str.
1286 * A maximum of @a str_size bytes (including null) will be written.
1290 get_current_url(struct session
*ses
, unsigned char *str
, size_t str_size
)
1295 assert(str
&& str_size
> 0);
1297 uri
= have_location(ses
) ? cur_loc(ses
)->vs
.uri
: ses
->loading_uri
;
1299 /* Not looking or loading anything */
1300 if (!uri
) return NULL
;
1302 /* Ensure that the url size is not greater than str_size.
1303 * We can't just happily strncpy(str, here, str_size)
1304 * because we have to stop at POST_CHAR, not only at NULL. */
1305 length
= int_min(get_real_uri_length(uri
), str_size
- 1);
1307 return safe_strncpy(str
, struri(uri
), length
+ 1);
1311 * Gets the title of the page being viewed by this session. Writes it into
1312 * @a str. A maximum of @a str_size bytes (including null) will be written.
1316 get_current_title(struct session
*ses
, unsigned char *str
, size_t str_size
)
1318 struct document_view
*doc_view
= current_frame(ses
);
1320 assert(str
&& str_size
> 0);
1322 /* Ensure that the title is defined */
1323 /* TODO: Try globhist --jonas */
1324 if (doc_view
&& doc_view
->document
->title
)
1325 return safe_strncpy(str
, doc_view
->document
->title
, str_size
);
1331 * Gets the url of the link currently selected. Writes it into @a str.
1332 * A maximum of @a str_size bytes (including null) will be written.
1336 get_current_link_url(struct session
*ses
, unsigned char *str
, size_t str_size
)
1338 struct link
*link
= get_current_session_link(ses
);
1340 assert(str
&& str_size
> 0);
1342 if (!link
) return NULL
;
1344 return safe_strncpy(str
, link
->where
? link
->where
: link
->where_img
, str_size
);
1347 /** get_current_link_name: returns the name of the current link
1348 * (the text between <A> and </A>), @a str is a preallocated string,
1349 * @a str_size includes the null char.
1350 * @relates session */
1352 get_current_link_name(struct session
*ses
, unsigned char *str
, size_t str_size
)
1354 struct link
*link
= get_current_session_link(ses
);
1355 unsigned char *where
, *name
= NULL
;
1357 assert(str
&& str_size
> 0);
1359 if (!link
) return NULL
;
1361 where
= link
->where
? link
->where
: link
->where_img
;
1362 #ifdef CONFIG_GLOBHIST
1364 struct global_history_item
*item
;
1366 item
= get_global_history_item(where
);
1367 if (item
) name
= item
->title
;
1370 if (!name
) name
= get_link_name(link
);
1371 if (!name
) name
= where
;
1373 return safe_strncpy(str
, name
, str_size
);
1377 get_current_link_in_view(struct document_view
*doc_view
)
1379 struct link
*link
= get_current_link(doc_view
);
1381 return link
&& !link_is_form(link
) ? link
: NULL
;
1384 /** @relates session */
1386 get_current_session_link(struct session
*ses
)
1388 return get_current_link_in_view(current_frame(ses
));
1391 /** @relates session */
1393 eat_kbd_repeat_count(struct session
*ses
)
1395 int count
= ses
->kbdprefix
.repeat_count
;
1397 ses
->kbdprefix
.repeat_count
= 0;
1399 /* Clear status bar when prefix is eaten (bug 930) */
1400 print_screen_status(ses
);