/* Timer callback for @periodic_save_timer. As explained in @install_timer,
* this function must erase the expired timer ID from all variables. */
static void
periodic_save_handler(void *xxx)
{
static int periodic_save_event_id = EVENT_NONE;
milliseconds_T interval;
if (get_cmd_opt_bool((const unsigned char *)"anonymous")) return;
/* Don't trigger anything at startup */
if (periodic_save_event_id == EVENT_NONE)
set_event_id(periodic_save_event_id, (unsigned char *)"periodic-saving");
else
trigger_event(periodic_save_event_id);
interval = sec_to_ms(get_opt_int((const unsigned char *)"infofiles.save_interval", NULL));
if (!interval) {
/* We should get here only if @periodic_save_handler
* is being called from @periodic_save_change_hook or
* @init_timer, rather than from the timer system. */
assert(periodic_save_timer == TIMER_ID_UNDEF);
return;
}
install_timer(&periodic_save_timer, interval, periodic_save_handler, NULL);
/* The expired timer ID has now been erased. */
}
static int
periodic_save_change_hook(struct session *ses, struct option *current,
struct option *changed)
{
if (get_cmd_opt_bool((const unsigned char *)"anonymous")) return 0;
kill_timer(&periodic_save_timer);
periodic_save_handler(NULL);
return 0;
}
static enum parse_error
parse_bind(struct option *opt_tree, struct conf_parsing_state *state,
struct string *mirror, int is_system_conf)
{
unsigned char *keymap, *keystroke, *action;
enum parse_error err = ERROR_NONE;
struct conf_parsing_pos before_error;
skip_white(&state->pos);
if (!*state->pos.look) return show_parse_error(state, ERROR_PARSE);
/* Keymap */
before_error = state->pos;
keymap = option_types[OPT_STRING].read(NULL, &state->pos.look,
&state->pos.line);
skip_white(&state->pos);
if (!keymap || !*state->pos.look) {
state->pos = before_error;
return show_parse_error(state, ERROR_PARSE);
}
/* Keystroke */
before_error = state->pos;
keystroke = option_types[OPT_STRING].read(NULL, &state->pos.look,
&state->pos.line);
skip_white(&state->pos);
if (!keystroke || !*state->pos.look) {
mem_free(keymap); mem_free_if(keystroke);
state->pos = before_error;
return show_parse_error(state, ERROR_PARSE);
}
/* Equal sign */
skip_white(&state->pos);
if (*state->pos.look != '=') {
mem_free(keymap); mem_free(keystroke);
return show_parse_error(state, ERROR_PARSE);
}
state->pos.look++; /* '=' */
skip_white(&state->pos);
if (!*state->pos.look) {
mem_free(keymap); mem_free(keystroke);
return show_parse_error(state, ERROR_PARSE);
}
/* Action */
before_error = state->pos;
action = option_types[OPT_STRING].read(NULL, &state->pos.look,
&state->pos.line);
if (!action) {
mem_free(keymap); mem_free(keystroke);
state->pos = before_error;
return show_parse_error(state, ERROR_PARSE);
}
if (!mirror) {
/* loading a configuration file */
/* We don't bother to bind() if -default-keys. */
if (!get_cmd_opt_bool("default-keys")
&& bind_do(keymap, keystroke, action, is_system_conf)) {
/* bind_do() tried but failed. */
err = show_parse_error(state, ERROR_VALUE);
} else {
err = ERROR_NONE;
}
} else if (is_system_conf) {
/* scanning a file that will not be rewritten */
/* TODO */
} else {
/* rewriting a configuration file */
/* Mirror what we already have. If the keystroke has
* been unbound, then act_str is simply "none" and
* this does not require special handling. */
unsigned char *act_str = bind_act(keymap, keystroke);
if (act_str) {
add_bytes_to_string(mirror, state->mirrored,
before_error.look - state->mirrored);
add_to_string(mirror, act_str);
mem_free(act_str);
state->mirrored = state->pos.look;
} else {
err = show_parse_error(state, ERROR_VALUE);
}
}
mem_free(keymap); mem_free(keystroke); mem_free(action);
return err;
}
/* Many execution paths may lead to this code so it needs to take appropriate
* precausions to stuff like doc_view and doc_view->vs being NULL. */
enum frame_event_status
do_action(struct session *ses, enum main_action action_id, int verbose)
{
enum frame_event_status status = FRAME_EVENT_OK;
struct terminal *term = ses->tab->term;
struct document_view *doc_view = current_frame(ses);
struct link *link = NULL;
if (action_id == -1) goto unknown_action;
if (doc_view && doc_view->vs) {
if (action_prefix_is_link_number(KEYMAP_MAIN, action_id)
&& !try_jump_to_link_number(ses, doc_view))
goto ignore_action;
link = get_current_link(doc_view);
} else if (action_requires_view_state(KEYMAP_MAIN, action_id)) {
goto ignore_action;
}
if (action_requires_location(KEYMAP_MAIN, action_id)
&& !have_location(ses))
return FRAME_EVENT_OK;
if (action_requires_link(KEYMAP_MAIN, action_id)
&& !link)
goto ignore_action;
if (action_requires_form(KEYMAP_MAIN, action_id)
&& (!link || !link_is_form(link)))
goto ignore_action;
if (!action_is_anonymous_safe(KEYMAP_MAIN, action_id)
&& get_cmd_opt_bool("anonymous"))
goto ignore_action;
/* Please keep in alphabetical order for now. Later we can sort by most
* used or something. */
switch (action_id) {
case ACT_MAIN_ABORT_CONNECTION:
abort_loading(ses, 1);
print_screen_status(ses);
break;
case ACT_MAIN_ADD_BOOKMARK:
#ifdef CONFIG_BOOKMARKS
launch_bm_add_doc_dialog(term, NULL, ses);
#endif
break;
case ACT_MAIN_ADD_BOOKMARK_LINK:
#ifdef CONFIG_BOOKMARKS
launch_bm_add_link_dialog(term, NULL, ses);
#endif
break;
case ACT_MAIN_ADD_BOOKMARK_TABS:
#ifdef CONFIG_BOOKMARKS
bookmark_terminal_tabs_dialog(term);
#endif
break;
case ACT_MAIN_AUTH_MANAGER:
auth_manager(ses);
break;
case ACT_MAIN_BACKSPACE_PREFIX:
if (!ses->kbdprefix.repeat_count) break;
set_kbd_repeat_count(ses,
ses->kbdprefix.repeat_count / 10);
/* Keep send_event from resetting repeat_count. */
status = FRAME_EVENT_SESSION_DESTROYED;
break;
case ACT_MAIN_BOOKMARK_MANAGER:
#ifdef CONFIG_BOOKMARKS
bookmark_manager(ses);
#endif
break;
case ACT_MAIN_CACHE_MANAGER:
cache_manager(ses);
break;
case ACT_MAIN_CACHE_MINIMIZE:
shrink_memory(1);
break;
case ACT_MAIN_COOKIES_LOAD:
#ifdef CONFIG_COOKIES
if (!get_opt_bool("cookies.save", NULL)) break;
load_cookies();
#endif
break;
case ACT_MAIN_COOKIE_MANAGER:
#ifdef CONFIG_COOKIES
cookie_manager(ses);
#endif
break;
case ACT_MAIN_COPY_CLIPBOARD:
status = copy_current_link_to_clipboard(ses, doc_view, 0);
break;
case ACT_MAIN_DOCUMENT_INFO:
document_info_dialog(ses);
break;
case ACT_MAIN_DOWNLOAD_MANAGER:
download_manager(ses);
break;
case ACT_MAIN_EXMODE:
#ifdef CONFIG_EXMODE
exmode_start(ses);
#endif
break;
case ACT_MAIN_FILE_MENU:
activate_bfu_technology(ses, 0);
break;
case ACT_MAIN_FIND_NEXT:
status = find_next(ses, doc_view, 1);
break;
case ACT_MAIN_FIND_NEXT_BACK:
status = find_next(ses, doc_view, -1);
break;
case ACT_MAIN_FORGET_CREDENTIALS:
free_auth();
shrink_memory(1); /* flush caches */
break;
case ACT_MAIN_FORMHIST_MANAGER:
#ifdef CONFIG_FORMHIST
formhist_manager(ses);
#endif
break;
case ACT_MAIN_FRAME_EXTERNAL_COMMAND:
status = pass_uri_to_command(ses, doc_view,
PASS_URI_FRAME);
break;
case ACT_MAIN_FRAME_NEXT:
next_frame(ses, 1);
draw_formatted(ses, 0);
break;
case ACT_MAIN_FRAME_MAXIMIZE:
status = set_frame(ses, doc_view, 0);
break;
case ACT_MAIN_FRAME_PREV:
next_frame(ses, -1);
draw_formatted(ses, 0);
break;
case ACT_MAIN_GOTO_URL:
goto_url_action(ses, NULL);
break;
case ACT_MAIN_GOTO_URL_CURRENT:
goto_url_action(ses, get_current_url);
break;
case ACT_MAIN_GOTO_URL_CURRENT_LINK:
goto_url_action(ses, get_current_link_url);
break;
case ACT_MAIN_GOTO_URL_HOME:
goto_url_home(ses);
break;
case ACT_MAIN_HEADER_INFO:
protocol_header_dialog(ses);
break;
case ACT_MAIN_HISTORY_MANAGER:
#ifdef CONFIG_GLOBHIST
history_manager(ses);
#endif
break;
case ACT_MAIN_HISTORY_MOVE_BACK:
{
int count = int_max(1, eat_kbd_repeat_count(ses));
go_history_by_n(ses, -count);
break;
}
case ACT_MAIN_HISTORY_MOVE_FORWARD:
{
int count = int_max(1, eat_kbd_repeat_count(ses));
go_history_by_n(ses, count);
break;
}
case ACT_MAIN_JUMP_TO_LINK:
break;
case ACT_MAIN_KEYBINDING_MANAGER:
keybinding_manager(ses);
break;
case ACT_MAIN_KILL_BACKGROUNDED_CONNECTIONS:
abort_background_connections();
break;
case ACT_MAIN_LINK_DIALOG:
open_link_dialog(ses);
break;
case ACT_MAIN_LINK_DOWNLOAD:
case ACT_MAIN_LINK_DOWNLOAD_IMAGE:
case ACT_MAIN_LINK_DOWNLOAD_RESUME:
status = download_link(ses, doc_view, action_id);
break;
case ACT_MAIN_LINK_EXTERNAL_COMMAND:
status = pass_uri_to_command(ses, doc_view,
PASS_URI_LINK);
break;
case ACT_MAIN_LINK_FOLLOW:
status = enter(ses, doc_view, 0);
break;
case ACT_MAIN_LINK_FOLLOW_RELOAD:
status = enter(ses, doc_view, 1);
break;
case ACT_MAIN_LINK_INFO:
link_info_dialog(ses);
break;
case ACT_MAIN_LINK_MENU:
link_menu(term, NULL, ses);
break;
case ACT_MAIN_LINK_FORM_MENU:
link_form_menu(ses);
break;
case ACT_MAIN_LUA_CONSOLE:
#ifdef CONFIG_SCRIPTING_LUA
trigger_event_name("dialog-lua-console", ses);
#endif
break;
case ACT_MAIN_MARK_SET:
#ifdef CONFIG_MARKS
ses->kbdprefix.mark = KP_MARK_SET;
status = FRAME_EVENT_REFRESH;
#endif
break;
case ACT_MAIN_MARK_GOTO:
#ifdef CONFIG_MARKS
/* TODO: Show promptly a menu (or even listbox?)
* with all the marks. But the next letter must
* still choose a mark directly! --pasky */
ses->kbdprefix.mark = KP_MARK_GOTO;
status = FRAME_EVENT_REFRESH;
#endif
break;
case ACT_MAIN_MENU:
activate_bfu_technology(ses, -1);
break;
case ACT_MAIN_MOVE_CURRENT_TOP:
status = move_current_top(ses, doc_view);
break;
case ACT_MAIN_MOVE_CURSOR_UP:
status = move_cursor_up(ses, doc_view);
break;
case ACT_MAIN_MOVE_CURSOR_DOWN:
status = move_cursor_down(ses, doc_view);
break;
case ACT_MAIN_MOVE_CURSOR_LEFT:
status = move_cursor_left(ses, doc_view);
break;
case ACT_MAIN_MOVE_CURSOR_RIGHT:
status = move_cursor_right(ses, doc_view);
break;
case ACT_MAIN_MOVE_CURSOR_LINE_START:
status = move_cursor_line_start(ses, doc_view);
break;
case ACT_MAIN_MOVE_HALF_PAGE_DOWN:
status = move_half_page_down(ses, doc_view);
break;
case ACT_MAIN_MOVE_HALF_PAGE_UP:
status = move_half_page_up(ses, doc_view);
break;
case ACT_MAIN_MOVE_LINK_DOWN:
status = move_link_down(ses, doc_view);
break;
case ACT_MAIN_MOVE_LINK_DOWN_LINE:
status = move_link_down_line(ses, doc_view);
break;
case ACT_MAIN_MOVE_LINK_LEFT:
status = move_link_left(ses, doc_view);
break;
case ACT_MAIN_MOVE_LINK_LEFT_LINE:
status = move_link_prev_line(ses, doc_view);
break;
case ACT_MAIN_MOVE_LINK_NEXT:
status = move_link_next(ses, doc_view);
break;
case ACT_MAIN_MOVE_LINK_PREV:
status = move_link_prev(ses, doc_view);
break;
case ACT_MAIN_MOVE_LINK_RIGHT:
status = move_link_right(ses, doc_view);
break;
case ACT_MAIN_MOVE_LINK_RIGHT_LINE:
status = move_link_next_line(ses, doc_view);
break;
case ACT_MAIN_MOVE_LINK_UP:
status = move_link_up(ses, doc_view);
break;
case ACT_MAIN_MOVE_LINK_UP_LINE:
status = move_link_up_line(ses, doc_view);
break;
case ACT_MAIN_MOVE_PAGE_DOWN:
status = move_page_down(ses, doc_view);
break;
case ACT_MAIN_MOVE_PAGE_UP:
status = move_page_up(ses, doc_view);
break;
case ACT_MAIN_MOVE_DOCUMENT_START:
status = move_document_start(ses, doc_view);
break;
case ACT_MAIN_MOVE_DOCUMENT_END:
status = move_document_end(ses, doc_view);
break;
case ACT_MAIN_OPEN_LINK_IN_NEW_TAB:
open_current_link_in_new_tab(ses, 0);
break;
case ACT_MAIN_OPEN_LINK_IN_NEW_TAB_IN_BACKGROUND:
open_current_link_in_new_tab(ses, 1);
break;
case ACT_MAIN_OPEN_LINK_IN_NEW_WINDOW:
open_in_new_window(term, send_open_in_new_window, ses);
break;
case ACT_MAIN_OPEN_NEW_TAB:
open_uri_in_new_tab(ses, NULL, 0, 1);
break;
case ACT_MAIN_OPEN_NEW_TAB_IN_BACKGROUND:
open_uri_in_new_tab(ses, NULL, 1, 1);
break;
case ACT_MAIN_OPEN_NEW_WINDOW:
open_in_new_window(term, send_open_new_window, ses);
break;
case ACT_MAIN_OPEN_OS_SHELL:
exec_shell(term);
break;
case ACT_MAIN_OPTIONS_MANAGER:
options_manager(ses);
break;
case ACT_MAIN_QUIT:
exit_prog(ses, 1);
break;
case ACT_MAIN_REALLY_QUIT:
exit_prog(ses, 0);
break;
case ACT_MAIN_REDRAW:
redraw_terminal_cls(term);
break;
case ACT_MAIN_RELOAD:
reload(ses, CACHE_MODE_INCREMENT);
break;
case ACT_MAIN_RERENDER:
draw_formatted(ses, 2);
break;
case ACT_MAIN_RESET_FORM:
status = reset_form(ses, doc_view, 0);
break;
case ACT_MAIN_RESOURCE_INFO:
resource_info(term);
break;
case ACT_MAIN_SAVE_AS:
status = save_as(ses, doc_view, 0);
break;
case ACT_MAIN_SAVE_FORMATTED:
status = save_formatted_dlg(ses, doc_view, 0);
break;
case ACT_MAIN_SAVE_OPTIONS:
write_config(term);
break;
case ACT_MAIN_SAVE_URL_AS:
save_url_as(ses);
break;
case ACT_MAIN_SCROLL_DOWN:
status = scroll_down(ses, doc_view);
break;
case ACT_MAIN_SCROLL_LEFT:
status = scroll_left(ses, doc_view);
break;
case ACT_MAIN_SCROLL_RIGHT:
status = scroll_right(ses, doc_view);
break;
case ACT_MAIN_SCROLL_UP:
status = scroll_up(ses, doc_view);
break;
case ACT_MAIN_SEARCH:
status = search_dlg(ses, doc_view, 1);
break;
case ACT_MAIN_SEARCH_BACK:
status = search_dlg(ses, doc_view, -1);
break;
case ACT_MAIN_SEARCH_TYPEAHEAD:
case ACT_MAIN_SEARCH_TYPEAHEAD_LINK:
case ACT_MAIN_SEARCH_TYPEAHEAD_TEXT:
case ACT_MAIN_SEARCH_TYPEAHEAD_TEXT_BACK:
status = search_typeahead(ses, doc_view, action_id);
break;
case ACT_MAIN_SHOW_TERM_OPTIONS:
terminal_options(term, NULL, ses);
break;
case ACT_MAIN_SUBMIT_FORM:
status = submit_form(ses, doc_view, 0);
break;
case ACT_MAIN_SUBMIT_FORM_RELOAD:
status = submit_form(ses, doc_view, 1);
break;
case ACT_MAIN_TAB_CLOSE:
close_tab(term, ses);
status = FRAME_EVENT_SESSION_DESTROYED;
break;
case ACT_MAIN_TAB_CLOSE_ALL_BUT_CURRENT:
close_all_tabs_but_current(ses);
break;
case ACT_MAIN_TAB_EXTERNAL_COMMAND:
status = pass_uri_to_command(ses, doc_view,
PASS_URI_TAB);
break;
case ACT_MAIN_TAB_MOVE_LEFT:
move_current_tab(ses, -1);
break;
case ACT_MAIN_TAB_MOVE_RIGHT:
move_current_tab(ses, 1);
break;
case ACT_MAIN_TAB_MENU:
assert(ses->tab == get_current_tab(term));
if (ses->status.show_tabs_bar)
tab_menu(ses, ses->tab->xpos,
term->height - 1
- ses->status.show_status_bar,
1);
else
tab_menu(ses, 0, 0, 0);
break;
case ACT_MAIN_TAB_NEXT:
switch_current_tab(ses, 1);
break;
case ACT_MAIN_TAB_PREV:
switch_current_tab(ses, -1);
break;
case ACT_MAIN_TERMINAL_RESIZE:
resize_terminal_dialog(term);
break;
case ACT_MAIN_TOGGLE_CSS:
#ifdef CONFIG_CSS
toggle_document_option(ses, "document.css.enable");
#endif
break;
case ACT_MAIN_TOGGLE_DISPLAY_IMAGES:
toggle_document_option(ses, "document.browse.images.show_as_links");
break;
case ACT_MAIN_TOGGLE_DISPLAY_TABLES:
toggle_document_option(ses, "document.html.display_tables");
break;
case ACT_MAIN_TOGGLE_DOCUMENT_COLORS:
toggle_document_option(ses, "document.colors.use_document_colors");
break;
case ACT_MAIN_TOGGLE_HTML_PLAIN:
toggle_plain_html(ses, ses->doc_view, 0);
break;
case ACT_MAIN_TOGGLE_MOUSE:
#ifdef CONFIG_MOUSE
toggle_mouse();
#endif
break;
case ACT_MAIN_TOGGLE_NUMBERED_LINKS:
toggle_document_option(ses, "document.browse.links.numbering");
break;
case ACT_MAIN_TOGGLE_PLAIN_COMPRESS_EMPTY_LINES:
toggle_document_option(ses, "document.plain.compress_empty_lines");
break;
case ACT_MAIN_TOGGLE_WRAP_TEXT:
toggle_wrap_text(ses, ses->doc_view, 0);
break;
case ACT_MAIN_VIEW_IMAGE:
status = view_image(ses, doc_view, 0);
break;
case ACT_MAIN_SCRIPTING_FUNCTION:
case ACT_MAIN_NONE:
case MAIN_ACTIONS:
default:
unknown_action:
if (verbose) {
INTERNAL("No action handling defined for '%s'.",
get_action_name(KEYMAP_MAIN, action_id));
}
status = FRAME_EVENT_IGNORED;
}
ignore_action:
/* XXX: At this point the session may have been destroyed */
if (status != FRAME_EVENT_SESSION_DESTROYED
&& ses->insert_mode == INSERT_MODE_ON
&& link != get_current_link(doc_view))
ses->insert_mode = INSERT_MODE_OFF;
if (status == FRAME_EVENT_REFRESH && doc_view)
refresh_view(ses, doc_view, 0);
return status;
}
void
textarea_edit(int op, struct terminal *term_, struct form_state *fs_,
struct document_view *doc_view_, struct link *link_)
{
struct textarea_data *td = NULL;
assert ((op == 0 || op == 1) && term_);
if_assert_failed return;
if (op == 0 && get_cmd_opt_bool("anonymous")) {
info_box(term_, 0, N_("Error"), ALIGN_CENTER,
N_("You cannot launch an external"
" editor in the anonymous mode."));
return;
}
if (op == 0) {
unsigned char *ed;
unsigned char *ex;
assert(fs_ && doc_view_ && link_ && term_);
td = init_textarea_data(term_, fs_, doc_view_, link_);
if (!td)
return;
ed = get_opt_str("document.browse.forms.editor",
doc_view_->session);
if (!ed || !*ed) {
ed = getenv("EDITOR");
if (!ed || !*ed) ed = "vi";
}
ex = straconcat(ed, " ", td->fn, (unsigned char *) NULL);
if (!ex) {
unlink(td->fn);
done_textarea_data(td);
return;
}
td->term->textarea_data = td;
exec_on_terminal(td->term, ex, "", TERM_EXEC_FG);
mem_free(ex);
return;
} else if (op == 1) {
struct string file;
td = term_->textarea_data;
term_->textarea_data = NULL;
assert(td);
if (!td->fs || !init_string(&file)
|| !add_file_to_string(&file, td->fn)) {
done_textarea_data(td);
return;
}
if (file.length > td->fc_maxlength) {
file.source[td->fc_maxlength] = '\0';
/* Casting size_t fc_maxlength to unsigned int
* and formatting it with "%u" is safe,
* because fc_maxlength is smaller than
* file.length, which is an int. */
info_box(td->term, MSGBOX_FREE_TEXT, N_("Warning"),
ALIGN_CENTER,
msg_text(td->term,
N_("You have exceeded the textarea's"
" size limit: your input is %d"
" bytes, but the maximum is %u"
" bytes.\n\n"
"Your input has been truncated,"
" but you can still recover the"
" text that you entered from"
" this file: %s"), file.length,
(unsigned int) td->fc_maxlength, td->fn));
} else {
unlink(td->fn);
}
mem_free(td->fs->value);
td->fs->value = file.source;
td->fs->state = file.length;
if (td->doc_view && td->link)
draw_form_entry(td->term, td->doc_view, td->link);
}
done_textarea_data(td);
}
void
connect_socket(struct socket *csocket, struct connection_state state)
{
int sock = -1;
struct connect_info *connect_info = csocket->connect_info;
int i;
int trno = connect_info->triedno;
int only_local = get_cmd_opt_bool("localhost");
int saved_errno = 0;
int at_least_one_remote_ip = 0;
#ifdef CONFIG_IPV6
int try_ipv6 = get_opt_bool("connection.try_ipv6", NULL);
#endif
int try_ipv4 = get_opt_bool("connection.try_ipv4", NULL);
/* We tried something but we failed in such a way that we would rather
* prefer the connection to retain the information about previous
* failures. That is, we i.e. decided we are forbidden to even think
* about such a connection attempt.
* XXX: Unify with @local_only handling? --pasky */
int silent_fail = 0;
csocket->ops->set_state(csocket, state);
/* Clear handlers, the connection to the previous RR really timed
* out and doesn't interest us anymore. */
if (csocket->fd >= 0)
close_socket(csocket);
for (i = connect_info->triedno + 1; i < connect_info->addrno; i++) {
#ifdef CONFIG_IPV6
struct sockaddr_in6 addr = *((struct sockaddr_in6 *) &connect_info->addr[i]);
int family = addr.sin6_family;
#else
struct sockaddr_in addr = *((struct sockaddr_in *) &connect_info->addr[i]);
int family = addr.sin_family;
#endif
int pf;
int force_family = connect_info->ip_family;
connect_info->triedno++;
if (only_local) {
int local = 0;
#ifdef CONFIG_IPV6
if (family == AF_INET6)
local = check_if_local_address6((struct sockaddr_in6 *) &addr);
else
#endif
local = check_if_local_address4((struct sockaddr_in *) &addr);
/* This forbids connections to anything but local, if option is set. */
if (!local) {
at_least_one_remote_ip = 1;
continue;
}
}
#ifdef CONFIG_IPV6
if (family == AF_INET6) {
if (!try_ipv6 || (force_family && force_family != 6)) {
silent_fail = 1;
continue;
}
pf = PF_INET6;
} else
#endif
if (family == AF_INET) {
if (!try_ipv4 || (force_family && force_family != 4)) {
silent_fail = 1;
continue;
}
pf = PF_INET;
} else {
continue;
}
silent_fail = 0;
sock = socket(pf, SOCK_STREAM, IPPROTO_TCP);
if (sock == -1) {
if (errno && !saved_errno) saved_errno = errno;
continue;
}
if (set_nonblocking_fd(sock) < 0) {
if (errno && !saved_errno) saved_errno = errno;
close(sock);
continue;
}
csocket->fd = sock;
#ifdef CONFIG_IPV6
addr.sin6_port = htons(connect_info->port);
#else
addr.sin_port = htons(connect_info->port);
#endif
/* We can set csocket->protocol_family here even if the connection
* will fail, as we will use it only when it will be successfully
* established. At least I hope that noone else will want to do
* something else ;-). --pasky */
/* And in fact we must set it early, because of EINPROGRESS. */
#ifdef CONFIG_IPV6
if (family == AF_INET6) {
csocket->protocol_family = EL_PF_INET6;
if (connect(sock, (struct sockaddr *) &addr,
sizeof(struct sockaddr_in6)) == 0) {
/* Success */
complete_connect_socket(csocket, NULL, NULL);
return;
}
} else
#endif
{
csocket->protocol_family = EL_PF_INET;
if (connect(sock, (struct sockaddr *) &addr,
sizeof(struct sockaddr_in)) == 0) {
/* Success */
complete_connect_socket(csocket, NULL, NULL);
return;
}
}
if (errno == EALREADY
#ifdef EWOULDBLOCK
|| errno == EWOULDBLOCK
#endif
|| errno == EINPROGRESS) {
/* It will take some more time... */
set_handlers(sock, NULL, (select_handler_T) connected,
(select_handler_T) dns_exception, csocket);
csocket->ops->set_state(csocket, connection_state(S_CONN));
return;
}
if (errno && !saved_errno) saved_errno = errno;
close(sock);
}
assert(i >= connect_info->addrno);
/* Tried everything, but it didn't help :(. */
if (only_local && !saved_errno && at_least_one_remote_ip) {
/* Yes we might hit a local address and fail in the process, but
* what matters is the last one because we do not know the
* previous one's errno, and the added complexity wouldn't
* really be worth it. */
csocket->ops->done(csocket, connection_state(S_LOCAL_ONLY));
return;
}
/* Retry reporting the errno state only if we already tried something
* new. Else use the S_DNS _progress_ state to make sure that no
* download callbacks will report any errors. */
if (trno != connect_info->triedno && !silent_fail)
state = connection_state_for_errno(errno);
else if (trno == -1 && silent_fail)
/* All failed. */
state = connection_state(S_NO_FORCED_DNS);
csocket->ops->retry(csocket, state);
}
/* To reduce redundant error handling code [calls to abort_connection()]
* most of the function is build around conditions that will assign the error
* code to @state if anything goes wrong. The rest of the function will then just
* do the necessary cleanups. If all works out we end up with @state being S_OK
* resulting in a cache entry being created with the fragment data generated by
* either reading the file content or listing a directory. */
void
file_protocol_handler(struct connection *connection)
{
unsigned char *redirect_location = NULL;
struct string page, name;
struct connection_state state;
int set_dir_content_type = 0;
if (get_cmd_opt_bool((const unsigned char *)"anonymous")) {
if (strcmp((const char *)connection->uri->string, "file:///dev/stdin")
|| isatty(STDIN_FILENO)) {
abort_connection(connection,
connection_state(S_FILE_ANONYMOUS));
return;
}
}
#ifdef CONFIG_CGI
if (!execute_cgi(connection)) return;
#endif /* CONFIG_CGI */
/* Treat /dev/stdin in special way */
if (!strcmp((const char *)connection->uri->string, "file:///dev/stdin")) {
int fd = open("/dev/stdin", O_RDONLY);
if (fd == -1) {
abort_connection(connection, connection_state(-errno));
return;
}
set_nonblocking_fd(fd);
if (!init_http_connection_info(connection, 1, 0, 1)) {
abort_connection(connection, connection_state(S_OUT_OF_MEM));
close(fd);
return;
}
connection->socket->fd = fd;
connection->data_socket->fd = -1;
read_from_stdin(connection);
return;
}
/* This function works on already simplified file-scheme URI pre-chewed
* by transform_file_url(). By now, the function contains no hostname
* part anymore, possibly relative path is converted to an absolute one
* and uri->data is just the final path to file/dir we should try to
* show. */
if (!init_string(&name)
|| !add_uri_to_string(&name, connection->uri, URI_PATH)) {
done_string(&name);
abort_connection(connection, connection_state(S_OUT_OF_MEM));
return;
}
decode_uri_string(&name);
/* In Win32, file_is_dir seems to always return 0 if the name
* ends with a directory separator. */
if ((name.length > 0 && dir_sep(name.source[name.length - 1]))
|| file_is_dir(name.source)) {
/* In order for global history and directory listing to
* function properly the directory url must end with a
* directory separator. */
if (name.source[0] && !dir_sep(name.source[name.length - 1])) {
redirect_location = (unsigned char *)STRING_DIR_SEP;
state = connection_state(S_OK);
} else {
state = list_directory(connection, name.source, &page);
set_dir_content_type = 1;
}
} else {
state = read_encoded_file(&name, &page);
/* FIXME: If state is now S_ENCODE_ERROR we should try loading
* the file undecoded. --jonas */
}
done_string(&name);
if (is_in_state(state, S_OK)) {
struct cache_entry *cached;
/* Try to add fragment data to the connection cache if either
* file reading or directory listing worked out ok. */
cached = connection->cached = get_cache_entry(connection->uri);
if (!connection->cached) {
if (!redirect_location) done_string(&page);
state = connection_state(S_OUT_OF_MEM);
} else if (redirect_location) {
if (!redirect_cache(cached, redirect_location, 1, 0))
state = connection_state(S_OUT_OF_MEM);
} else {
add_fragment(cached, 0, page.source, page.length);
connection->from += page.length;
if (!cached->head && set_dir_content_type) {
unsigned char *head;
/* If the system charset somehow
* changes after the directory listing
* has been generated, it should be
* parsed with the original charset. */
head = straconcat((const unsigned char *)"\r\nContent-Type: text/html; charset=",
get_cp_mime_name(get_cp_index((const unsigned char *)"System")),
"\r\n", (unsigned char *) NULL);
/* Not so gracefully handle failed memory
* allocation. */
if (!head)
state = connection_state(S_OUT_OF_MEM);
/* Setup directory listing for viewing. */
mem_free_set(&cached->head, head);
}
done_string(&page);
}
}
abort_connection(connection, state);
}
