default.c

ELinks is an advanced and well-established feature-rich text mode web (HTTP/FTP/..) browser. ELinks

"\n"
" -dither-images <0>/<1>\n"
"  Do image dithering.\n"
"\n"
" -display-optimize <0>/<1>/<2>\n"
"  Optimize for CRT (0), LCD RGB (1), LCD BGR (2).\n"
"\n"
" -gamma correction <0>/<1>/<2>\n"
"  Type of gamma correction:\n"
"    (default 2)\n"
"  0 - 8-bit (fast).\n"
"  1 - 16-bit (slow).\n"
"  2 - automatically detect according to speed of FPU.\n"
"\n"
#ifdef JS
" -enable-javascript <0>/<1>\n"
"  Enable javascript.\n"
"\n"
" -js.verbose-errors <0>/<1>\n"
"  Display javascript errors.\n"
"\n"
" -js.verbose-warnings <0>/<1>\n"
"  Display javascript warnings.\n"
"\n"
" -js.enable-all-conversions <0>/<1>\n"
"  Enable conversions between all types in javascript.\n"
"\n"
" -js.enable-global-resolution <0>/<1>\n"
"  Resolve global names.\n"
"\n"
" -js.manual-confirmation <0>/<1>\n"
"  Ask user to confirm potentially dangerous operations.\n"
"    (opening windows, going to url etc.) Default 1.\n"
"\n"
" -js.recursion-depth <integer>\n"
"  Depth of javascript call stack.\n"
"\n"
" -js.memory-limit <memory amount>\n"
"  Amount of kilobytes the javascript may allocate.\n"
"\n"
#endif
" -bookmarks-codepage <codepage>\n"
"  Character set of bookmarks file.\n"
"\n"
" -bookmarks-file <file>\n"
"  File to store bookmarks.\n"
"\n"
" -html-assume-codepage <codepage>\n"
"  If server didn't specify document character set, assume this.\n"
"\n"
" -html-hard-assume <0>/<1>\n"
"  Use always character set from \"-html-assume-codepage\" no matter\n"
"    what server sent.\n"
"\n"
" -html-tables <0>/<1>\n"
"  Render tables. (0) causes tables being rendered like in lynx.\n"
"\n"
" -html-frames <0>/<1>\n"
"  Render frames. (0) causes frames  rendered like in lynx.\n"
"\n"
" -html-images <0>/<1>\n"
"  Display links to unnamed images as [IMG].\n"
"\n"
" -html-image-names <0>/<1>\n"
"  Display filename of an image instead of [IMG].\n"
"\n"
" -html-display-images <0>/<1>\n"
"  Display images in graphics mode.\n"
"\n"
" -html-image-scale <percent>\n"
"  Scale images in graphics mode.\n"
"\n"
" -html-bare-image-autoscale <0>/<1>\n"
"  Autoscale images displayed on full screen.\n"
"\n"
" -html-numbered-links <0>/<1>\n"
"  Number links in text mode. Allow quick link selection by typing\n"
"    link number and enter.\n"
"\n"
" -html-table-order <0>/<1>\n"
"  In text mode, walk through table by rows (0) or columns (1).\n"
"\n"
" -html-auto-refresh <0>/<1>\n"
"  Process refresh to other page (1), or display link to that page (0).\n"
"\n"
" -html-target-in-new-window <0>/<1>\n"
"  Allow opening new windows from html.\n"
"\n"
" -html-margin <number of spaces>\n"
"  Margin in text mode.\n"
"\n"
" -html-user-font-size <size>\n"
"  Size of font on pages in graphics mode.\n"
"\n"
" -lookup <hostname>\n"
"  Does name lookup, like command \"host\".\n"
"\n"
" -version\n"
"  Prints the links version number and exit.\n"
"\n"
" -help\n"
"  Prints this help screen\n"
"\n"
"\n"),
("Keys:\n"
"	ESC	  display menu\n"
"	^C	  quit\n"
"	^P	  scroll up\n"
"	^N	  scroll down\n"
"	[, ]	  scroll left, right\n"
"	up, down  select link\n"
"	->, enter follow link\n"
"	<-, z	  go back\n"
"	g	  go to url\n"
"	G	  go to url based on current url\n"
"	^G	  go to url based on current link\n"
"	^R	  reload\n"
"	/	  search\n"
"	?	  search back\n"
"	n	  find next\n"
"	N	  find previous\n"
"	=	  document info\n"
"	\\	  document source\n"
"	|	  HTTP header\n"
"	*	  toggle displaying of image links (text mode)\n"
"	d	  download\n"
"	s	  bookmarks\n"
"	q	  quit or close current window\n"
"	^X	  cut to clipboard\n"
"	^V	  paste from clipboard\n"
"	^K	  cut line (in textarea) or text to the end (in field)\n"
"	^U	  cut all text before cursor\n"
"	^W	  autocomplete url\n"
"	Alt-1 .. Alt-9\n"
"		  switch virtual screens (svgalib and framebuffer)\n"
"\n"
"Keys for braille terminal:\n"
"       arrows	  move the cursor\n"
"       enter	  follow link\n"
"	a	  cursor to status line\n"
"	w	  cursor to title\n"
"	^Y	  next link\n"
"	^T	  previous link\n"
"	y	  next word\n"
"	t	  previous word\n"
"	^O	  next form field entry\n"
));

	fflush(stdout);
	return "";
}

void end_config(void)
{
	struct driver_param *dp;
	foreach(dp,driver_params)
	{
		if (dp->param)mem_free(dp->param);
		if (dp->shell)mem_free(dp->shell);
	}
	free_list(driver_params);
	if (links_home) mem_free(links_home);
}

int ggr = 0;
unsigned char ggr_drv[MAX_STR_LEN] = "";
unsigned char ggr_mode[MAX_STR_LEN] = "";
unsigned char ggr_display[MAX_STR_LEN] = "";

int anonymous = 0;

unsigned char system_name[MAX_STR_LEN];

unsigned char default_target[MAX_STR_LEN] ="";

unsigned char *links_home = NULL;
int first_use = 0;
int created_home = 0;

int no_connect = 0;
int base_session = 0;
int dmp = 0;
int force_html = 0;

int async_lookup = 1;
int download_utime = 0;
int max_connections = 10;
int max_connections_to_host = 8;
int max_tries = 3;
int receive_timeout = 120;
int unrestartable_receive_timeout = 600;

int screen_width = 80;
int dump_codepage = -1;

int max_format_cache_entries = 5;
int memory_cache_size = 1048576;
int image_cache_size = 1048576;

int enable_html_tables = 1;
int enable_html_frames = 1;

struct document_setup dds = { 0, 0, 1, 1, 0, 0, 3, 0, 0, 0, 18, 1, 
	100, /* Image scale */
	0, /* Porn enable */
	0 };

struct rgb default_fg = { 191, 191, 191, 0 };
struct rgb default_bg = { 0, 0, 0, 0 };
struct rgb default_link = { 255, 255, 255, 0 };
struct rgb default_vlink = { 255, 255, 0, 0 };

struct rgb default_fg_g = { 0, 0, 0, 0 };
struct rgb default_bg_g = { 192, 192, 192, 0 };
struct rgb default_link_g = { 0, 0, 255, 0 };
struct rgb default_vlink_g = { 0, 0, 128, 0 };

int default_left_margin = HTML_LEFT_MARGIN;

struct proxies proxies = { "", "", "", 0 };
int js_enable=1;   /* 0=disable javascript */
int js_verbose_errors=0;   /* 1=create dialog on every javascript error, 0=be quiet and continue */
int js_verbose_warnings=0;   /* 1=create dialog on every javascript warning, 0=be quiet and continue */
int js_all_conversions=1;
int js_global_resolve=1;	/* resolvovani v globalnim adresnim prostoru, kdyz BFU vomitne document */
int js_manual_confirmation=1; /* !0==annoying dialog on every goto url etc. */
int js_fun_depth=100;
int js_memory_limit=5*1024;  /* in kilobytes, should be in range 1M-20M (1MB=1024*1024B) */

int display_optimize=0;	/*0=CRT, 1=LCD RGB, 2=LCD BGR */
int gamma_bits=2;	/*0 --- 8, 1 --- 16, 2 --- auto */
double bfu_aspect=1; /* 0.1 to 10.0, 1.0 default. >1 makes circle wider */
int aspect_on=1;

unsigned char download_dir[MAX_STR_LEN] = "";

struct ftp_options ftp_options = { "[e-mail]", 0, 0, 1 };

/* These are workarounds for some CGI script bugs */
struct http_bugs http_bugs = { 0, 1, 1, 0, 0, 0, 0, 1, "", "", REFERER_NONE };
/*int bug_302_redirect = 0;*/
	/* When got 301 or 302 from POST request, change it to GET
	   - this violates RFC2068, but some buggy message board scripts rely on it */
/*int bug_post_no_keepalive = 0;*/
	/* No keepalive connection after POST request. Some buggy PHP databases report bad
	   results if GET wants to retreive data POSTed in the same connection */

struct option links_options[] = {
	{1, printhelp_cmd, NULL, NULL, 0, 0, NULL, NULL, "?"},
	{1, printhelp_cmd, NULL, NULL, 0, 0, NULL, NULL, "h"},
	{1, printhelp_cmd, NULL, NULL, 0, 0, NULL, NULL, "help"},
	{1, printhelp_cmd, NULL, NULL, 0, 0, NULL, NULL, "-help"},
	{1, lookup_cmd, NULL, NULL, 0, 0, NULL, NULL, "lookup"},
	{1, version_cmd, NULL, NULL, 0, 0, NULL, NULL, "version"},
	{1, set_cmd, NULL, NULL, 0, 0, &no_connect, NULL, "no-connect"},
	{1, set_cmd, NULL, NULL, 0, 0, &anonymous, NULL, "anonymous"},
	{1, set_cmd, NULL, NULL, 0, 0, &ggr, NULL, "g"},
	{1, unset_cmd, NULL, NULL, 0, 0, &ggr, NULL, "no-g"},
	{1, setstr_cmd, NULL, NULL, 0, MAX_STR_LEN, &ggr_drv, NULL, "driver"},
	{1, setstr_cmd, NULL, NULL, 0, MAX_STR_LEN, &default_target, NULL, "target"},
	{1, setstr_cmd, NULL, NULL, 0, MAX_STR_LEN, &ggr_mode, NULL, "mode"},
	{1, setstr_cmd, NULL, NULL, 0, MAX_STR_LEN, &ggr_display, NULL, "display"},
	{1, gen_cmd, num_rd, NULL, 0, MAXINT, &base_session, NULL, "base-session"},
	{1, force_html_cmd, NULL, NULL, 0, 0, NULL, NULL, "force-html"},
	{1, dump_cmd, NULL, NULL, D_SOURCE, 0, NULL, NULL, "source"},
	{1, dump_cmd, NULL, NULL, D_DUMP, 0, NULL, NULL, "dump"},
	{1, gen_cmd, num_rd, NULL, 10, 512, &screen_width, "dump_width", "width" },
	{1, gen_cmd, cp_rd, NULL, 1, 0, &dump_codepage, "dump_codepage", "codepage" },
	{1, gen_cmd, num_rd, num_wr, 0, 1, &async_lookup, "async_dns", "async-dns"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &download_utime, "download_utime", "download-utime"},
	{1, gen_cmd, num_rd, num_wr, 1, 99, &max_connections, "max_connections", "max-connections"},
	{1, gen_cmd, num_rd, num_wr, 1, 99, &max_connections_to_host, "max_connections_to_host", "max-connections-to-host"},
	{1, gen_cmd, num_rd, num_wr, 0, 16, &max_tries, "retries", "retries"},
	{1, gen_cmd, num_rd, num_wr, 1, 1800, &receive_timeout, "receive_timeout", "receive-timeout"},
	{1, gen_cmd, num_rd, num_wr, 1, 1800, &unrestartable_receive_timeout, "unrestartable_receive_timeout", "unrestartable-receive-timeout"},
	{1, gen_cmd, num_rd, num_wr, 0, 256, &max_format_cache_entries, "format_cache_size", "format-cache-size"},
	{1, gen_cmd, num_rd, num_wr, 0, MAXINT, &memory_cache_size, "memory_cache_size", "memory-cache-size"},
	{1, gen_cmd, num_rd, num_wr, 0, MAXINT, &image_cache_size, "image_cache_size", "image-cache-size"},
	{1, gen_cmd, str_rd, str_wr, 0, MAX_STR_LEN, proxies.http_proxy, "http_proxy", "http-proxy"},
	{1, gen_cmd, str_rd, str_wr, 0, MAX_STR_LEN, proxies.ftp_proxy, "ftp_proxy", "ftp-proxy"},
	{1, gen_cmd, str_rd, str_wr, 0, MAX_STR_LEN, proxies.socks_proxy, "socks_proxy", "socks-proxy"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &proxies.only_proxies, "only_proxies", "only-proxies"},
	{1, gen_cmd, str_rd, str_wr, 0, MAX_STR_LEN, download_dir, "download_dir", "download-dir"},
	{1, gen_cmd, lang_rd, lang_wr, 0, 0, &current_language, "language", "language"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &http_bugs.http10, "http_bugs.http10", "http-bugs.http10"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &http_bugs.allow_blacklist, "http_bugs.allow_blacklist", "http-bugs.allow-blacklist"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &http_bugs.bug_302_redirect, "http_bugs.bug_302_redirect", "http-bugs.bug-302-redirect"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &http_bugs.bug_post_no_keepalive, "http_bugs.bug_post_no_keepalive", "http-bugs.bug-post-no-keepalive"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &http_bugs.no_accept_charset, "http_bugs.no_accept_charset", "http-bugs.bug-no-accept-charset"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &http_bugs.no_compression, "http_bugs.no_compression", "http-bugs.no-compression"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &http_bugs.retry_internal_errors, "http_bugs.retry_internal_errors", "http-bugs.retry-internal-errors"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &http_bugs.aggressive_cache, "http_bugs.aggressive_cache", "http-bugs.aggressive-cache"},
	{1, gen_cmd, num_rd, num_wr, 0, 4, &http_bugs.referer, "http_referer", "http-referer"},
	{1, gen_cmd, str_rd, str_wr, 0, MAX_STR_LEN, http_bugs.fake_useragent, "fake_useragent", "fake-user-agent"},
	{1, gen_cmd, str_rd, str_wr, 0, MAX_STR_LEN, http_bugs.fake_referer, "fake_referer", "fake-referer"},
	{1, gen_cmd, str_rd, str_wr, 0, MAX_STR_LEN, ftp_options.anon_pass, "ftp.anonymous_password", "ftp.anonymous-password"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &ftp_options.passive_ftp, "ftp.use_passive", "ftp.use-passive"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &ftp_options.fast_ftp, "ftp.fast", "ftp.fast"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &ftp_options.set_tos, "ftp.set_iptos", "ftp.set-iptos"},
	{1, gen_cmd, num_rd, num_wr, 1, 999, &menu_font_size, "menu_font_size", "menu-font-size"},
	{1, gen_cmd, num_rd, num_wr, 0, 0xffffff, &G_BFU_BG_COLOR, "background_color", "background-color"},
	{1, gen_cmd, num_rd, num_wr, 0, 0xffffff, &G_BFU_FG_COLOR, "foreground_color", "foreground-color"},
	{1, gen_cmd, num_rd, num_wr, 0, 0xffffff, &G_SCROLL_BAR_AREA_COLOR, "scroll_bar_area_color", "scroll-bar-area-color"},
	{1, gen_cmd, num_rd, num_wr, 0, 0xffffff, &G_SCROLL_BAR_BAR_COLOR, "scroll_bar_bar_color", "scroll-bar-bar-color"},
	{1, gen_cmd, num_rd, num_wr, 0, 0xffffff, &G_SCROLL_BAR_FRAME_COLOR, "scroll_bar_frame_color", "scroll-bar-frame-color"},
	{1, gen_cmd, dbl_rd, dbl_wr, 1, 10000, &display_red_gamma, "display_red_gamma", "display-red-gamma"},
	{1, gen_cmd, dbl_rd, dbl_wr, 1, 10000, &display_green_gamma, "display_green_gamma", "display-green-gamma"},
	{1, gen_cmd, dbl_rd, dbl_wr, 1, 10000, &display_blue_gamma, "display_blue_gamma", "display-blue-gamma"},
	{1, gen_cmd, dbl_rd, dbl_wr, 1, 10000, &user_gamma, "user_gamma", "user-gamma"},
	{1, gen_cmd, dbl_rd, dbl_wr, 25, 400, &bfu_aspect, "bfu_aspect", "bfu-aspect"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &aspect_on, "aspect_on", "aspect-on"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &dither_letters, "dither_letters", "dither-letters"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &dither_images, "dither_images", "dither-images"},
	{1, gen_cmd, num_rd, num_wr, 0, 2, &display_optimize, "display_optimize", "display-optimize"},
	{1, gen_cmd, num_rd, num_wr, 0, 2, &gamma_bits, "gamma_correction", "gamma-correction"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &js_enable, "enable_javascript", "enable-javascript"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &js_verbose_errors, "verbose_javascript_errors", "js.verbose-errors"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &js_verbose_warnings, "verbose_javascript_warnings", "js.verbose-warnings"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &js_all_conversions, "enable_all_conversions", "js.enable-all-conversions"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &js_global_resolve, "enable_global_resolution", "js.enable-global-resolution"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &js_manual_confirmation, "javascript_manual_confirmation", "js.manual-confirmation"},
	{1, gen_cmd, num_rd, num_wr, 0, 999999, &js_fun_depth, "js_recursion_depth", "js.recursion-depth"},
	{1, gen_cmd, num_rd, num_wr, 1024, 30*1024, &js_memory_limit, "js_memory_limit", "js.memory-limit"},
	{1, gen_cmd, cp_rd, cp_wr, 0, 0, &bookmarks_codepage, "bookmarks_codepage", "bookmarks-codepage"},
	{1, gen_cmd, str_rd, str_wr, 0, MAX_STR_LEN, bookmarks_file, "bookmarks_file", "bookmarks-file"},
	{1, gen_cmd, cp_rd, NULL, 0, 0, &dds.assume_cp, "assume_codepage", "assume-codepage"},
	{1, NULL, term_rd, term_wr, 0, 0, NULL, "terminal", NULL},
	{1, NULL, term2_rd, NULL, 0, 0, NULL, "terminal2", NULL},
	{1, NULL, type_rd, type_wr, 0, 0, NULL, "association", NULL},
	{1, NULL, ext_rd, ext_wr, 0, 0, NULL, "extension", NULL},
	{1, NULL, prog_rd, prog_wr, 0, 0, &mailto_prog, "mailto", NULL},
	{1, NULL, prog_rd, prog_wr, 0, 0, &telnet_prog, "telnet", NULL},
	{1, NULL, prog_rd, prog_wr, 0, 0, &tn3270_prog, "tn3270", NULL},
	{1, NULL, prog_rd, prog_wr, 0, 0, &mms_prog, "mms", NULL},
	{1, NULL, block_rd, block_wr, 0, 0, NULL, "imageblock", NULL},
	{1, NULL, dp_rd, dp_wr, 0, 0, NULL, "video_driver", NULL},
	{0, NULL, NULL, NULL, 0, 0, NULL, NULL, NULL},
};

struct option html_options[] = {
	{1, gen_cmd, num_rd, num_wr, 0, 1, &dds.hard_assume, "html_hard_assume", "html-hard-assume"},
	{1, gen_cmd, cp_rd, cp_wr, 0, 0, &dds.assume_cp, "html_assume_codepage", "html-assume-codepage"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &dds.tables, "html_tables", "html-tables"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &dds.frames, "html_frames", "html-frames"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &dds.images, "html_images", "html-images"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &dds.image_names, "html_image_names", "html-image-names"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &dds.display_images, "html_display_images", "html-display-images"},
	{1, gen_cmd, num_rd, num_wr, 1, 500, &dds.image_scale, "html_image_scale", "html-image-scale"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &dds.porn_enable, "html_bare_image_autoscale", "html-bare-image-autoscale"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &dds.num_links, "html_numbered_links", "html-numbered-links"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &dds.table_order, "html_table_order", "html-table-order"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &dds.auto_refresh, "html_auto_refresh", "html-auto-refresh"},
	{1, gen_cmd, num_rd, num_wr, 0, 1, &dds.target_in_new_window, "html_target_in_new_window", "html-target-in-new-window"},
	{1, gen_cmd, num_rd, num_wr, 0, 9, &dds.margin, "html_margin", "html-margin"},
	{1, gen_cmd, num_rd, num_wr, 1, 999, &dds.font_size, "html_font_size", "html-user-font-size"},
	{0, NULL, NULL, NULL, 0, 0, NULL, NULL, NULL},
};

void load_url_history(void)
{
	unsigned char *history_file, *hs;
	unsigned char *hsp;

	if (anonymous) return;
	/* Must have been called after init_home */
	if (!links_home) return;
	history_file = stracpy(links_home);
	add_to_strn(&history_file, "links.his");
	hs = read_config_file(history_file);
	mem_free(history_file);
	if (!hs) return;
	for (hsp = hs; *hsp; ) {
		unsigned char *hsl, *hsc;
		for (hsl = hsp; *hsl && *hsl != 10 && *hsl != 13; hsl++) ;
		hsc = memacpy(hsp, hsl - hsp);
		add_to_history(&goto_url_history, hsc);
		mem_free(hsc);
		hsp = hsl;
		while (*hsp == 10 || *hsp == 13) hsp++;
	}
	mem_free(hs);
}

void save_url_history(void)
{
	struct history_item *hi;
	unsigned char *history_file;
	unsigned char *hs;
	int hsl = 0;
	int i = 0;
	if (anonymous) return;

	/* Must have been called after init_home */
	if (!links_home) return;
	history_file = stracpy(links_home);
	add_to_strn(&history_file, "links.his");
	hs = init_str();
	hsl = 0;
	foreachback(hi, goto_url_history.items) {
		if (!*hi->d || strchr(hi->d, 10) || strchr(hi->d, 13)) continue;
		if (i++ > MAX_HISTORY_ITEMS)
			break;
		else {
			add_to_str(&hs, &hsl, hi->d);
			add_to_str(&hs, &hsl, NEWLINE);
		}
	}
	write_to_config_file(history_file, hs);
	mem_free(history_file);
	mem_free(hs);
	return;
}