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/*
* Copyright (c) 2010, 2011 Marco Peereboom <marco@peereboom.us>
* Copyright (c) 2011 Stevan Andjelkovic <stevan@student.chalmers.se>
* Copyright (c) 2010, 2011 Edd Barrett <vext01@gmail.com>
* Copyright (c) 2011 Todd T. Fries <todd@fries.net>
* Copyright (c) 2011 Raphael Graf <r@undefined.ch>
* Copyright (c) 2011 Michal Mazurek <akfaew@jasminek.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <xombrero.h>
#define XT_HISTORY_FILE ("history")
#define XT_MAX_HL_PURGE_COUNT (1000) /* Purge the history for every
* MAX_HL_PURGE_COUNT items inserted into
* history and delete all items older
* than MAX_HISTORY_AGE. */
#define XT_MAX_HISTORY_AGE (60.0 * 60.0 * 24 * 14) /* 14 days */
int
purge_history(void)
{
struct history *h, *next;
double age = 0.0;
DNPRINTF(XT_D_HISTORY, "%s: hl_purge_count = %d (%d is max)\n",
__func__, hl_purge_count, XT_MAX_HL_PURGE_COUNT);
if (hl_purge_count == XT_MAX_HL_PURGE_COUNT) {
hl_purge_count = 0;
for (h = RB_MIN(history_list, &hl); h != NULL; h = next) {
next = RB_NEXT(history_list, &hl, h);
age = difftime(time(NULL), h->time);
if (age > XT_MAX_HISTORY_AGE) {
DNPRINTF(XT_D_HISTORY, "%s: removing %s (age %.1f)\n",
__func__, h->uri, age);
RB_REMOVE(history_list, &hl, h);
g_free(h->uri);
g_free(h->title);
g_free(h);
} else {
DNPRINTF(XT_D_HISTORY, "%s: keeping %s (age %.1f)\n",
__func__, h->uri, age);
}
}
}
return (0);
}
int
insert_history_item(const gchar *uri, const gchar *title, time_t time)
{
struct history *h;
if (!(uri && strlen(uri) && title && strlen(title)))
return (1);
h = g_malloc(sizeof(struct history));
h->uri = g_strdup(uri);
h->title = g_strdup(title);
h->time = time;
DNPRINTF(XT_D_HISTORY, "%s: adding %s\n", __func__, h->uri);
RB_INSERT(history_list, &hl, h);
completion_add_uri(h->uri);
hl_purge_count++;
purge_history();
update_history_tabs(NULL);
return (0);
}
int
restore_global_history(void)
{
char file[PATH_MAX];
FILE *f;
gchar *uri, *title = NULL, *stime = NULL, *err = NULL;
time_t time;
struct tm tm;
const char delim[3] = {'\\', '\\', '\0'};
snprintf(file, sizeof file, "%s" PS "%s", work_dir, XT_HISTORY_FILE);
if ((f = fopen(file, "r")) == NULL) {
warnx("%s: fopen", __func__);
return (1);
}
for (;;) {
if ((uri = fparseln(f, NULL, NULL, delim, 0)) == NULL)
if (feof(f) || ferror(f))
break;
if ((title = fparseln(f, NULL, NULL, delim, 0)) == NULL)
if (feof(f) || ferror(f)) {
err = "broken history file (title)";
goto done;
}
if ((stime = fparseln(f, NULL, NULL, delim, 0)) == NULL)
if (feof(f) || ferror(f)) {
err = "broken history file (time)";
goto done;
}
if (strptime(stime, "%a %b %d %H:%M:%S %Y", &tm) == NULL) {
err = "strptime failed to parse time";
goto done;
}
time = mktime(&tm);
if (insert_history_item(uri, title, time)) {
err = "failed to insert item";
goto done;
}
free(uri);
free(title);
free(stime);
uri = NULL;
title = NULL;
stime = NULL;
}
done:
if (err && strlen(err)) {
warnx("%s: %s\n", __func__, err);
free(uri);
free(title);
free(stime);
return (1);
}
return (0);
}
int
save_global_history_to_disk(struct tab *t)
{
char file[PATH_MAX];
FILE *f;
struct history *h;
snprintf(file, sizeof file, "%s" PS "%s", work_dir, XT_HISTORY_FILE);
if ((f = fopen(file, "w")) == NULL) {
show_oops(t, "%s: global history file: %s",
__func__, strerror(errno));
return (1);
}
RB_FOREACH_REVERSE(h, history_list, &hl) {
if (h->uri && h->title && h->time)
fprintf(f, "%s\n%s\n%s", h->uri, h->title,
ctime(&h->time));
}
fclose(f);
return (0);
}
/*
* Marshall the internal record of visited URIs into a Javascript hash table in
* string form.
*/
char *
color_visited_helper(void)
{
char *d, *s = NULL, *t;
struct history *h;
RB_FOREACH_REVERSE(h, history_list, &hl) {
if (s == NULL)
s = g_strdup_printf("'%s':'dummy'", h->uri);
else {
d = g_strdup_printf("'%s':'dummy'", h->uri);
t = g_strjoin(",", s, d, NULL);
g_free(d);
g_free(s);
s = t;
}
}
t = g_strdup_printf("{%s}", s);
g_free(s);
s = t;
DNPRINTF(XT_D_VISITED, "%s: s = %s\n", __func__, s);
return (s);
}
int
color_visited(struct tab *t, char *visited)
{
char *s, *v;
if (t == NULL || visited == NULL) {
show_oops(NULL, "%s: invalid parameters", __func__);
return (1);
}
/*
* Create a string representing an annonymous Javascript function, which
* takes a hash table of visited URIs as an argument, goes through the
* links at the current web page and colors them if they indeed been
* visited.
*/
v = g_strdup_printf("(%s);", visited),
s = g_strconcat(
"(function(visitedUris) {",
" for (var i = 0; i < document.links.length; i++)",
" if (visitedUris[document.links[i].href])",
" document.links[i].style.color = 'purple';",
"})",
v, NULL);
run_script(t, s);
g_free(s);
g_free(v);
g_free(visited);
return (0);
}
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