Desktop
/* $Id: mime.c,v 1.27 2008/03/12 00:56:35 khorben Exp $ */
/* Copyright (c) 2007 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Desktop Browser */
/* Browser is not free software; you can redistribute it and/or modify it
* under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike
* 3.0 Unported as published by the Creative Commons organization.
*
* Browser 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 Creative Commons Attribution-NonCommercial-
* ShareAlike 3.0 Unported license for more details.
*
* You should have received a copy of the Creative Commons Attribution-
* NonCommercial-ShareAlike 3.0 along with Browser; if not, browse to
* http://creativecommons.org/licenses/by-nc-sa/3.0/ */
#include <sys/types.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <fnmatch.h>
#include "mime.h"
#include "../config.h"
/* Mime */
/* mime_new */
static void _new_config(Mime * mime);
Mime * mime_new(void)
{
Mime * mime;
char * globs[] = {
PREFIX "/share/mime/globs",
"/usr/share/mime/globs",
"/usr/local/share/mime/globs",
"/usr/pkg/share/mime/globs",
NULL };
char ** g = globs;
FILE * fp = NULL;
char buf[256];
size_t len;
char * glob;
MimeType * p;
if((mime = malloc(sizeof(*mime))) == NULL)
return NULL;
for(g = globs; *g != NULL; g++)
if((fp = fopen(*g, "r")) != NULL)
break;
if(fp == NULL)
{
perror("Could not load MIME globs");
free(mime);
return NULL;
}
mime->types = NULL;
mime->types_cnt = 0;
_new_config(mime);
while(fgets(buf, sizeof(buf), fp) != NULL)
{
errno = EINVAL;
len = strlen(buf);
if(buf[--len] != '\n')
break;
if(buf[0] == '#')
continue;
buf[len] = '\0';
glob = strchr(buf, ':');
*(glob++) = '\0';
if((p = realloc(mime->types, sizeof(*p) * (mime->types_cnt
+ 1))) == NULL)
break;
mime->types = p;
p = &p[mime->types_cnt];
p->type = strdup(buf);
p->glob = strdup(glob);
if(p->type == NULL || p->glob == NULL)
{
free(p->type);
free(p->glob);
break;
}
p->icon_24 = NULL;
#if GTK_CHECK_VERSION(2, 6, 0)
p->icon_48 = NULL;
p->icon_96 = NULL;
#endif
/* p->open = mime->config != NULL
? config_get(mime->config, buf, "open") : NULL;
p->edit = mime->config != NULL
? config_get(mime->config, buf, "edit") : NULL; */
mime->types_cnt++;
}
if(!feof(fp))
{
perror(*g);
mime_delete(mime);
mime = NULL;
}
fclose(fp);
return mime;
}
static void _new_config(Mime * mime)
{
char * homedir;
char * filename;
if((homedir = getenv("HOME")) == NULL)
return;
if((mime->config = config_new()) == NULL)
return;
if((filename = malloc(strlen(homedir) + 1 + strlen(MIME_CONFIG_FILE)
+ 1)) == NULL)
return;
sprintf(filename, "%s/%s", homedir, MIME_CONFIG_FILE);
config_load(mime->config, filename);
free(filename);
}
/* mime_delete */
void mime_delete(Mime * mime)
{
unsigned int i;
for(i = 0; i < mime->types_cnt; i++)
{
free(mime->types[i].type);
free(mime->types[i].glob);
free(mime->types[i].icon_24);
#if GTK_CHECK_VERSION(2, 6, 0)
free(mime->types[i].icon_48);
free(mime->types[i].icon_96);
#endif
}
free(mime->types);
if(mime->config != NULL)
config_delete(mime->config);
free(mime);
}
/* accessors */
/* mime_get_handler */
char const * mime_get_handler(Mime * mime, char const * type,
char const * action)
{
char const * program;
char * p;
char * q;
if(type == NULL || action == NULL)
return NULL;
if((program = config_get(mime->config, type, action)) != NULL)
return program;
if((p = strchr(type, '/')) == NULL || *(++p) == '\0'
|| (p = strdup(type)) == NULL)
return NULL;
q = strchr(p, '/');
q[1] = '*';
q[2] = '\0';
program = config_get(mime->config, p, action);
free(p);
return program;
}
/* useful */
/* mime_type */
char const * mime_type(Mime * mime, char const * path)
{
unsigned int i;
for(i = 0; i < mime->types_cnt; i++)
if(fnmatch(mime->types[i].glob, path, FNM_NOESCAPE) == 0)
break;
#ifdef FNM_CASEFOLD
if(i < mime->types_cnt)
return mime->types[i].type;
for(i = 0; i < mime->types_cnt; i++)
if(fnmatch(mime->types[i].glob, path,
FNM_NOESCAPE | FNM_CASEFOLD) == 0)
break;
#endif
return i < mime->types_cnt ? mime->types[i].type : NULL;
}
/* mime_action */
int mime_action(Mime * mime, char const * action, char const * path)
{
char const * type;
if((type = mime_type(mime, path)) == NULL)
return 1;
return mime_action_type(mime, action, path, type);
}
/* mime_action_type */
int mime_action_type(Mime * mime, char const * action, char const * path,
char const * type)
/* FIXME report errors */
{
char const * program;
pid_t pid;
if((program = mime_get_handler(mime, type, action)) == NULL)
return 2;
if((pid = fork()) == -1)
{
perror("fork");
return 3;
}
if(pid != 0)
return 0;
execlp(program, program, path, NULL);
perror(program);
exit(2);
}
/* mime_icons */
static GdkPixbuf * _icons_size(GtkIconTheme * theme, char const * type,
int size);
void mime_icons(Mime * mime, GtkIconTheme * theme, char const * type, ...)
{
unsigned int i;
va_list arg;
int size;
GdkPixbuf ** icon;
for(i = 0; i < mime->types_cnt; i++)
if(strcmp(type, mime->types[i].type) == 0)
break;
if(i == mime->types_cnt)
return;
va_start(arg, type);
while((size = va_arg(arg, int)) > 0)
{
icon = va_arg(arg, GdkPixbuf **);
if(size == 24)
{
if(mime->types[i].icon_24 == NULL)
mime->types[i].icon_24 = _icons_size(theme,
type, 24);
*icon = mime->types[i].icon_24;
continue;
}
#if GTK_CHECK_VERSION(2, 6, 0)
if(size == 48)
{
if(mime->types[i].icon_48 == NULL)
mime->types[i].icon_48 = _icons_size(theme,
type, 48);
*icon = mime->types[i].icon_48;
continue;
}
if(size == 96)
{
if(mime->types[i].icon_96 == NULL)
mime->types[i].icon_96 = _icons_size(theme,
type, 96);
*icon = mime->types[i].icon_96;
continue;
}
#endif
*icon = _icons_size(theme, type, size);
}
va_end(arg);
}
static GdkPixbuf * _icons_size(GtkIconTheme * theme, char const * type,
int size)
{
static char buf[256] = "gnome-mime-";
char * p;
GdkPixbuf * icon;
strncpy(&buf[11], type, sizeof(buf)-11);
for(buf[sizeof(buf)-1] = '\0'; (p = strchr(&buf[11], '/')) != NULL;
*p = '-');
if((icon = gtk_icon_theme_load_icon(theme, buf, size, 0, NULL)) != NULL)
return icon;
if((p = strchr(&buf[11], '-')) != NULL)
{
*p = '\0';
return gtk_icon_theme_load_icon(theme, buf, size, 0, NULL);
}
return icon;
}