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e16-epplets/epplets/E-UrlWatch.c

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/* E-UrlWatch.c
*
* Copyright (C) 1999-2000 Tom Gilbert
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "epplet.h"
#include "utils.h"
#include "E-UrlWatch.h"
#if 0
#define D(a) { printf("%s +%u : ",__FILE__,__LINE__); \
printf a; fflush(stdout); }
#else
#define D(a) { /* No debug */; }
#endif
static void display_string (char *string);
static void handle_url (char *url, char *type);
static void add_url_to_popup (char *url);
static int url_in_popup (char *url);
static char *validate_url (char *url);
static void check_url_file (void *data);
static void
save_config (void)
{
char buf[10];
Esnprintf (buf, sizeof (buf), "%d", opt.always_show_file_urls);
Epplet_modify_config ("ALWAYS_SHOW_FILE_URLS", buf);
Esnprintf (buf, sizeof (buf), "%d", opt.save_urls);
Epplet_modify_config ("SAVE_URLS", buf);
Esnprintf (buf, sizeof (buf), "%d", opt.check_url_file);
Epplet_modify_config ("CHECK_URL_FILE", buf);
Esnprintf (buf, sizeof (buf), "%d", opt.do_new_url_command);
Epplet_modify_config ("RUN_COMMAND_ON_NEW_URL", buf);
Epplet_modify_config ("WWW_COMMAND", opt.www_command);
Epplet_modify_config ("FTP_COMMAND", opt.ftp_command);
Epplet_modify_config ("GET_COMMAND", opt.get_command);
Epplet_modify_config ("URL_SAVE_FILE", opt.url_save_file);
Epplet_modify_config ("URL_CHECK_FILE", opt.url_file);
Epplet_modify_config ("NEW_URL_COMMAND", opt.new_url_command);
}
static void
load_config (void)
{
char *home = getenv ("HOME");
char buf[256];
opt.save_urls = atoi (Epplet_query_config_def ("SAVE_URLS", "1"));
opt.check_url_file = atoi (Epplet_query_config_def ("CHECK_URL_FILE", "1"));
opt.always_show_file_urls =
atoi (Epplet_query_config_def ("ALWAYS_SHOW_FILE_URLS", "0"));
opt.do_new_url_command =
atoi (Epplet_query_config_def ("RUN_COMMAND_ON_NEW_URL", "1"));
if (opt.www_command)
free (opt.www_command);
opt.www_command =
_Strdup (Epplet_query_config_def
("WWW_COMMAND", "gnome-moz-remote --newwin \"%s\" &"));
if (opt.ftp_command)
free (opt.ftp_command);
opt.ftp_command =
_Strdup (Epplet_query_config_def
("FTP_COMMAND", "gnome-moz-remote --newwin \"%s\" &"));
if (opt.get_command)
free (opt.get_command);
opt.get_command =
_Strdup (Epplet_query_config_def
("GET_COMMAND", "Eterm -O -e wget \"%s\" &"));
if (opt.url_save_file)
free (opt.url_save_file);
Esnprintf (buf, sizeof (buf), "%s/.Urls", home);
opt.url_save_file =
_Strdup (Epplet_query_config_def ("URL_SAVE_FILE", buf));
if (opt.url_file)
free (opt.url_file);
Esnprintf (buf, sizeof (buf), "%s/.te/.urls", home);
opt.url_file = _Strdup (Epplet_query_config_def ("URL_CHECK_FILE", buf));
if (opt.new_url_command)
free (opt.new_url_command);
opt.new_url_command =
_Strdup (Epplet_query_config_def
("NEW_URL_COMMAND",
"esdplay " EROOT "/epplet_data/E-UrlWatch/wooeep.wav &"));
}
static void
cb_close (void *data)
{
save_config ();
Esync ();
Epplet_unremember ();
exit (0);
data = NULL;
}
static void
cb_help (void *data)
{
Epplet_show_about ("E-UrlWatch");
return;
data = NULL;
}
static void
apply_config (void)
{
if (opt.new_url_command)
free (opt.new_url_command);
opt.new_url_command =
_Strdup (Epplet_textbox_contents (txt_new_url_command));
if (opt.url_save_file)
free (opt.url_save_file);
opt.url_save_file = _Strdup (Epplet_textbox_contents (txt_url_save_file));
if (opt.url_file)
free (opt.url_file);
opt.url_file = _Strdup (Epplet_textbox_contents (txt_url_file));
if (opt.www_command)
free (opt.www_command);
opt.www_command = _Strdup (Epplet_textbox_contents (txt_www_command));
if (opt.ftp_command)
free (opt.ftp_command);
opt.ftp_command = _Strdup (Epplet_textbox_contents (txt_ftp_command));
if (opt.get_command)
free (opt.get_command);
opt.get_command = _Strdup (Epplet_textbox_contents (txt_get_command));
if (opt.check_url_file)
Epplet_timer (check_url_file, NULL, 1, "URLCHECK_TIMER");
return;
}
static void
ok_cb (void *data)
{
apply_config ();
save_config ();
Epplet_window_destroy (confwin);
confwin = 0;
return;
data = NULL;
}
static void
apply_cb (void *data)
{
apply_config ();
return;
data = NULL;
}
static void
cancel_cb (void *data)
{
Epplet_window_destroy (confwin);
confwin = 0;
load_config ();
return;
data = NULL;
}
static void
cb_config (void *data)
{
Epplet_gadget lbl, btn_check_file, btn_save, btn_do_new_url_command,
btn_always_show_file_urls;
if (confwin)
return;
/* Save any cahnges made though the main window, so we can revert using
* the cancel button */
save_config ();
confwin =
Epplet_create_window_config (440, 360, "E-UrlWatch Config", ok_cb,
&confwin, apply_cb, &confwin, cancel_cb,
&confwin);
Epplet_gadget_show (lbl = Epplet_create_label (10, 10, "WWW Command:", 2));
Epplet_gadget_show (txt_www_command =
Epplet_create_textbox (NULL, opt.www_command, 10, 25,
420, 20, 2, NULL, NULL));
Epplet_gadget_show (lbl = Epplet_create_label (10, 50, "FTP Command:", 2));
Epplet_gadget_show (txt_ftp_command =
Epplet_create_textbox (NULL, opt.ftp_command, 10, 65,
420, 20, 2, NULL, NULL));
Epplet_gadget_show (lbl = Epplet_create_label (10, 90, "GET Command:", 2));
Epplet_gadget_show (txt_get_command =
Epplet_create_textbox (NULL, opt.get_command, 10, 105,
420, 20, 2, NULL, NULL));
Epplet_draw_line (confwin, 130, 0, 130, 440, 0, 0, 0);
Epplet_gadget_show (btn_save =
Epplet_create_togglebutton (NULL, NULL, 10, 135, 12, 12,
&opt.save_urls, NULL,
NULL));
Epplet_gadget_show (lbl =
Epplet_create_label (30, 135,
"Save all urls handled?", 2));
Epplet_gadget_show (lbl =
Epplet_create_label (10, 150, "File to save urls in:",
2));
Epplet_gadget_show (txt_url_save_file =
Epplet_create_textbox (NULL, opt.url_save_file, 10, 165,
420, 20, 2, NULL, NULL));
Epplet_gadget_show (btn_check_file =
Epplet_create_togglebutton (NULL, NULL, 10, 195, 12, 12,
&opt.check_url_file, NULL,
NULL));
Epplet_gadget_show (lbl =
Epplet_create_label (30, 195,
"Watch a file for new urls? (Eg. Third Eye Url Catcher)",
2));
Epplet_gadget_show (lbl =
Epplet_create_label (20, 210, "File to watch:", 2));
Epplet_gadget_show (txt_url_file =
Epplet_create_textbox (NULL, opt.url_file, 10, 225, 420,
20, 2, NULL, NULL));
Epplet_gadget_show (btn_do_new_url_command =
Epplet_create_togglebutton (NULL, NULL, 10, 255, 12, 12,
&opt.do_new_url_command,
NULL, NULL));
Epplet_gadget_show (lbl =
Epplet_create_label (30, 255,
"Run command when a new url is detected?",
2));
Epplet_gadget_show (lbl =
Epplet_create_label (10, 270, "Command to run:", 2));
Epplet_gadget_show (txt_new_url_command =
Epplet_create_textbox (NULL, opt.new_url_command, 10,
285, 420, 20, 2, NULL, NULL));
Epplet_gadget_show (btn_always_show_file_urls =
Epplet_create_togglebutton (NULL, NULL, 10, 315, 12, 12,
&opt.always_show_file_urls,
NULL, NULL));
Epplet_gadget_show (lbl =
Epplet_create_label (30, 315,
"Automatically launch every new url in watched file?",
2));
Epplet_window_show (confwin);
Epplet_window_pop_context ();
return;
data = NULL;
}
static void
cb_url_listp (void *data)
{
char *url = (char *) data;
D (("In cb_url_listp: About to call handle_url on -->%s<--\n", url));
handle_url (url, "www");
}
static void
build_url_list (void)
{
int i, j;
j = num_urls - 1;
D (("In build_url_list: num_urls = -->%d<--\n", num_urls));
url_p = Epplet_create_popup ();
for (i = 0; i < 10; i++)
{
if (urllist[j])
{
Epplet_add_popup_entry (url_p, urllist[j], NULL,
cb_url_listp, (void *) urllist[j]);
D (("In build_url_list: adding = -->%s<--\n", urllist[j]));
--j;
if (j < 0)
j = 9;
}
else
break;
}
Epplet_change_popbutton_popup (btn_urllist, url_p);
}
static void
add_url_to_url_list (char *url)
{
if (num_urls == 10)
num_urls = 0;
D (("In add_url_to_url_list: adding = -->%s<--\n", url));
if (urllist[num_urls])
{
free (urllist[num_urls]);
urllist[num_urls] = NULL;
}
urllist[num_urls] = _Strdup (url);
num_urls++;
}
static void
add_url_to_popup (char *url)
{
D (("In add_url_to_popup: adding = -->%s<--\n", url));
add_url_to_url_list (url);
build_url_list ();
return;
}
static char *
get_url_from_paste_buffer (void)
{
static char *url;
Display *thedisplay;
int len = 0;
thedisplay = Epplet_get_display ();
if (url)
XFree (url);
url = XFetchBuffer (thedisplay, &len, 0);
return url;
}
static char *
get_url_from_file_list (char *file, int position)
{
FILE *fp;
static char buf[256];
int j = 0;
D (("In get_url_from_file_list\n"));
if ((fp = fopen (file, "r")) == NULL)
{
fprintf (stderr, "Unable to open file -->%s<-- for reading\n", file);
return "Error opening url file!";
}
if (position == -1)
{
while (!feof (fp))
{
j++;
fgets (buf, sizeof (buf), fp);
}
D (("In get_url_from_file_list: There are %d urls in the file\n", j));
}
else
{
while (!feof (fp) && j < position)
{
j++;
fgets (buf, sizeof (buf), fp);
}
D (
("In get_url_from_file_list: Asked for url %d returning url %d\n",
position, j));
}
D (("In get_url_from_file_list: buf is -->%s<--\n", buf));
fclose (fp);
return buf;
}
static void
display_url_from_file (char *url)
{
char *validurl;
if ((validurl = validate_url (url)) == NULL)
return;
/* Perform new url command (eg play a sound) */
if (opt.do_new_url_command && opt.new_url_command)
system (opt.new_url_command);
if (opt.always_show_file_urls)
handle_url (validurl, "www");
else
{
display_string (validurl);
Epplet_gadget_show (btn_file_url);
}
if (!url_in_popup (validurl))
add_url_to_popup (validurl);
}
/* Examine the file for changes */
static void
check_url_file (void *data)
{
static off_t lastfilesize = 0;
off_t filesize = 0;
struct stat filestat;
D (("In check_url_file, url_file -->%s<--\n", opt.url_file));
if (stat (opt.url_file, &filestat) != 0)
{
D (("stat() failed on -->%s<--\n", opt.url_file));
}
else
{
filesize = filestat.st_size;
if ((filesize != lastfilesize) && (lastfilesize != 0))
display_url_from_file (get_url_from_file_list (opt.url_file, -1));
lastfilesize = filesize;
}
if (opt.check_url_file)
Epplet_timer (check_url_file, NULL, 1, "URLCHECK_TIMER");
return;
data = NULL;
}
static char *
validate_url (char *url)
{
char *p;
char *ret = NULL;
static char *orig_ret = NULL;
D (("In validate_url: url -->%s<--\n", url));
if (orig_ret)
free (orig_ret);
ret = orig_ret = _Strdup (url);
/* First, try searching for http://, in case there is a lot of text,
* with an embedded url somewhere inside... */
p = strstr (ret, "http://");
if (p != NULL)
ret = p;
else
{
/* Ok. No "http://", maybe a "www." ? */
p = strstr (ret, "http://");
if (p != NULL)
ret = p;
}
/* Kill at end of line */
p = strchr (ret, '\n');
if (p != NULL)
*p = '\0';
/* Skip first spaces */
p = ret;
while (*p == ' ')
p++;
ret = p;
/* Kill at next space */
p = strchr (ret, ' ');
if (p != NULL)
*p = '\0';
/* If just www.blah, add the http:// to avoid confusing nutscrape */
if (*ret == 'w' && *(ret + 1) == 'w' && *(ret + 2) == 'w')
{
char *temp = _Strjoin (NULL, "http://", ret, NULL);
free (orig_ret);
ret = _Strdup (temp);
free (temp);
}
D (("In validate_url: ret -->%s<--\n", ret));
/* Now some checks */
if (strlen (ret) < 1)
return 0;
if (*ret == '-')
return 0;
return ret;
}
static void
save_url (char *url)
{
FILE *fp;
if ((fp = fopen (opt.url_save_file, "a")) != NULL)
{
fprintf (fp, "%s\n", url);
fclose (fp);
}
}
static void
reset_string (void *data)
{
display_string ("E-UrlWatch");
Epplet_gadget_hide (btn_file_url);
return;
data = NULL;
}
static void
scroll_string (void *data)
{
char buf[20];
static int back = 0;
static int pause = 0;
if (dtext.len > 19)
{
if (dtext.pos > (dtext.len - 19))
{
dtext.pos = dtext.len - 19;
back = 1;
pause = 1;
}
else if (dtext.pos == 0)
{
back = 0;
pause = 1;
}
Esnprintf (buf, sizeof (buf), "%s", dtext.str + dtext.pos);
if (!back)
dtext.pos += 1;
else
dtext.pos -= 1;
Epplet_change_label (lbl_url, buf);
}
else
Epplet_change_label (lbl_url, dtext.str);
if (pause)
{
Epplet_timer (scroll_string, NULL, 1.0, "SCROLL_TIMER");
pause = 0;
}
else
Epplet_timer (scroll_string, NULL, 0.3, "SCROLL_TIMER");
Esync ();
return;
data = NULL;
}
static int
url_in_popup (char *url)
{
int i;
D (("In url_in_popup: url is -->%s<--\n", url));
for (i = 0; i < 10; i++)
{
if ((urllist[i]) && (!strcmp (urllist[i], url)))
{
D (("In url_in_popup: A match! Returning TRUE\n"));
return 1;
}
else
{
D (
("In url_in_popup: No match between list item -->%s<-- and url -->%s<--\n",
urllist[i], url));
}
}
return 0;
}
static void
display_string (char *string)
{
D (("In display_string: String -->%s<--\n", string));
if (dtext.str)
free (dtext.str);
dtext.str = _Strdup (string);
dtext.len = strlen (string);
dtext.pos = 0;
Epplet_timer (scroll_string, NULL, 0.1, "SCROLL_TIMER");
Epplet_timer (reset_string, NULL, 20, "RESET_TIMER");
}
static void
handle_url (char *url, char *type)
{
char *sys = NULL;
int len = 0;
if (url == NULL)
return;
D (("In handle_url: url -->%s<--\n", url));
/* This should be close enough :) */
len = strlen (opt.www_command) + strlen (url);
sys = malloc (len);
if (!strcmp (type, "www"))
{
Esnprintf (sys, len, opt.www_command, url);
}
else if (!strcmp (type, "ftp"))
{
Esnprintf (sys, len, opt.ftp_command, url);
}
else if (!strcmp (type, "get"))
{
Esnprintf (sys, len, opt.get_command, url);
}
else
{
Esnprintf (sys, len, opt.www_command, url);
}
D (("In handle_url: About to system() -->%s<--\n", sys));
system (sys);
if (!url_in_popup (url))
add_url_to_popup (url);
free (sys);
if (opt.save_urls)
save_url (url);
}
/* Amongst all the fluff, this is the bit that does the actual work. */
static void
cb_shoot (void *data)
{
char *url;
char *validurl;
url = get_url_from_paste_buffer ();
D (("In cb_shoot: url -->%s<--\n", url));
if ((validurl = validate_url (url)) == NULL)
return;
D (("In cb_shoot: valid url -->%s<--\n", validurl));
display_string (validurl);
handle_url (validurl, data);
return;
}
static void
cb_btn_file_url (void *data)
{
if (dtext.str && strcmp (dtext.str, "E-UrlWatch"))
{
handle_url (dtext.str, "www");
}
return;
data = NULL;
}
static void
create_epplet_layout (void)
{
Epplet_gadget_show (lbl_url = Epplet_create_label (2, 34, " ", 0));
Epplet_gadget_show (btn_close =
Epplet_create_std_button ("CLOSE", 2,
2, cb_close, NULL));
Epplet_gadget_show (btn_help =
Epplet_create_std_button ("HELP",
16, 2, cb_help, NULL));
Epplet_gadget_show (btn_www =
Epplet_create_text_button ("WWW",
2, 17, 28, 13,
cb_shoot, "www"));
Epplet_gadget_show (btn_ftp =
Epplet_create_text_button ("FTP",
32, 17, 28, 13,
cb_shoot, "ftp"));
Epplet_gadget_show (btn_wget =
Epplet_create_text_button ("GET",
62, 17, 28, 13,
cb_shoot, "get"));
btn_file_url = Epplet_create_text_button ("New!",
30, 2, 34, 12,
cb_btn_file_url, NULL);
Epplet_gadget_show (btn_conf =
Epplet_create_std_button ("CONFIGURE",
82, 2, cb_config, NULL));
url_p = Epplet_create_popup ();
Epplet_add_popup_entry (url_p, "Url List is currently empty", NULL, NULL,
NULL);
Epplet_gadget_show (btn_urllist =
Epplet_create_popupbutton (NULL, NULL, 68, 2, 12, 12,
"ARROW_DOWN", url_p));
if (opt.check_url_file)
Epplet_timer (check_url_file, NULL, 1, "URLCHECK_TIMER");
display_string ("Welcome to E-UrlWatch ;-)");
}
static void
clean_exit (void)
{
save_config ();
Epplet_cleanup ();
}
int
main (int argc, char **argv)
{
int prio;
prio = getpriority (PRIO_PROCESS, getpid ());
setpriority (PRIO_PROCESS, getpid (), prio + 10);
atexit (clean_exit);
Epplet_Init ("E-UrlWatch", "0.1",
"Enlightenment Url Watcher Epplet", 6, 3, argc, argv, 0);
Epplet_load_config ();
load_config ();
create_epplet_layout ();
Epplet_show ();
Epplet_Loop ();
return 0;
}
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