pidgin/pidgin

Make PurplePluginProtocolInfo definitions consistent
release-2.x.y
2020-05-20, David Woodhouse
159344ba2a49
Make PurplePluginProtocolInfo definitions consistent

Since we can't use C99 structure initialisers, we have to manually add
new NULL fields to all protocols whenever we extend the structure.

Make it slightly easier to script that, by making the current last
field (get_cb_alias) consistent in all cases. In particular, there's
no reason *not* to have the trailing comma, as most already do.

Now I can add a new field to the PRPL by doing something like this...

PROTOFILES=`grep -rl '[A-Za-z_][A-Za-z0-9_]*,[[:space:]]*/\* get_cb_alias \*/' libpurple/protocols/ `
sed '/\/\* get_cb_alias \*\//{p;s/[A-Za-z_][A-Za-
/**
* @file purple-desktop-item.c Functions for managing .desktop files
* @ingroup core
*/
/* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*
*/
/*
* The following code has been adapted from gnome-desktop-item.[ch],
* as found on gnome-desktop-2.8.1.
*
* Copyright (C) 2004 by Alceste Scalas <alceste.scalas@gmx.net>.
*
* Original copyright notice:
*
* Copyright (C) 1999, 2000 Red Hat Inc.
* Copyright (C) 2001 Sid Vicious
* All rights reserved.
*
* This file is part of the Gnome Library.
*
* The Gnome Library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* The Gnome Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with the Gnome Library; see the file COPYING.LIB. If not,
* write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02111-1301, USA.
*/
#include "internal.h"
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include "desktopitem.h"
struct _PurpleDesktopItem {
int refcount;
/* all languages used */
GList *languages;
PurpleDesktopItemType type;
/* `modified' means that the ditem has been
* modified since the last save. */
gboolean modified;
/* Keys of the main section only */
GList *keys;
GList *sections;
/* This includes ALL keys, including
* other sections, separated by '/' */
GHashTable *main_hash;
char *location;
time_t mtime;
};
typedef struct {
char *name;
GList *keys;
} Section;
typedef enum {
ENCODING_UNKNOWN,
ENCODING_UTF8,
ENCODING_LEGACY_MIXED
} Encoding;
/**************************************************************************
* Private utility functions
**************************************************************************/
static PurpleDesktopItemType
type_from_string (const char *type)
{
if (!type)
return PURPLE_DESKTOP_ITEM_TYPE_NULL;
switch (type [0]) {
case 'A':
if (purple_strequal (type, "Application"))
return PURPLE_DESKTOP_ITEM_TYPE_APPLICATION;
break;
case 'L':
if (purple_strequal (type, "Link"))
return PURPLE_DESKTOP_ITEM_TYPE_LINK;
break;
case 'F':
if (purple_strequal (type, "FSDevice"))
return PURPLE_DESKTOP_ITEM_TYPE_FSDEVICE;
break;
case 'M':
if (purple_strequal (type, "MimeType"))
return PURPLE_DESKTOP_ITEM_TYPE_MIME_TYPE;
break;
case 'D':
if (purple_strequal (type, "Directory"))
return PURPLE_DESKTOP_ITEM_TYPE_DIRECTORY;
break;
case 'S':
if (purple_strequal (type, "Service"))
return PURPLE_DESKTOP_ITEM_TYPE_SERVICE;
else if (purple_strequal (type, "ServiceType"))
return PURPLE_DESKTOP_ITEM_TYPE_SERVICE_TYPE;
break;
default:
break;
}
return PURPLE_DESKTOP_ITEM_TYPE_OTHER;
}
static Section *
find_section (PurpleDesktopItem *item, const char *section)
{
GList *li;
Section *sec;
if (section == NULL)
return NULL;
if (purple_strequal (section, "Desktop Entry"))
return NULL;
for (li = item->sections; li != NULL; li = li->next) {
sec = li->data;
if (purple_strequal (sec->name, section))
return sec;
}
sec = g_new0 (Section, 1);
sec->name = g_strdup (section);
sec->keys = NULL;
item->sections = g_list_append (item->sections, sec);
/* Don't mark the item modified, this is just an empty section,
* it won't be saved even */
return sec;
}
static Section *
section_from_key (PurpleDesktopItem *item, const char *key)
{
char *p;
char *name;
Section *sec;
if (key == NULL)
return NULL;
p = strchr (key, '/');
if (p == NULL)
return NULL;
name = g_strndup (key, p - key);
sec = find_section (item, name);
g_free (name);
return sec;
}
static const char *
key_basename (const char *key)
{
char *p = strrchr (key, '/');
if (p != NULL)
return p+1;
else
return key;
}
static void
set (PurpleDesktopItem *item, const char *key, const char *value)
{
Section *sec = section_from_key (item, key);
if (sec != NULL) {
if (value != NULL) {
if (g_hash_table_lookup (item->main_hash, key) == NULL)
sec->keys = g_list_append
(sec->keys,
g_strdup (key_basename (key)));
g_hash_table_replace (item->main_hash,
g_strdup (key),
g_strdup (value));
} else {
GList *list = g_list_find_custom
(sec->keys, key_basename (key),
(GCompareFunc)strcmp);
if (list != NULL) {
g_free (list->data);
sec->keys =
g_list_delete_link (sec->keys, list);
}
g_hash_table_remove (item->main_hash, key);
}
} else {
if (value != NULL) {
if (g_hash_table_lookup (item->main_hash, key) == NULL)
item->keys = g_list_append (item->keys,
g_strdup (key));
g_hash_table_replace (item->main_hash,
g_strdup (key),
g_strdup (value));
} else {
GList *list = g_list_find_custom
(item->keys, key, (GCompareFunc)strcmp);
if (list != NULL) {
g_free (list->data);
item->keys =
g_list_delete_link (item->keys, list);
}
g_hash_table_remove (item->main_hash, key);
}
}
item->modified = TRUE;
}
static void
_purple_desktop_item_set_string (PurpleDesktopItem *item,
const char *attr,
const char *value)
{
g_return_if_fail (item != NULL);
g_return_if_fail (item->refcount > 0);
g_return_if_fail (attr != NULL);
set (item, attr, value);
if (purple_strequal (attr, PURPLE_DESKTOP_ITEM_TYPE))
item->type = type_from_string (value);
}
static PurpleDesktopItem *
_purple_desktop_item_new (void)
{
PurpleDesktopItem *retval;
retval = g_new0 (PurpleDesktopItem, 1);
retval->refcount++;
retval->main_hash = g_hash_table_new_full (g_str_hash, g_str_equal,
(GDestroyNotify) g_free,
(GDestroyNotify) g_free);
/* These are guaranteed to be set */
_purple_desktop_item_set_string (retval,
PURPLE_DESKTOP_ITEM_NAME,
_("No name"));
_purple_desktop_item_set_string (retval,
PURPLE_DESKTOP_ITEM_ENCODING,
"UTF-8");
_purple_desktop_item_set_string (retval,
PURPLE_DESKTOP_ITEM_VERSION,
"1.0");
return retval;
}
static gpointer
_purple_desktop_item_copy (gpointer boxed)
{
return purple_desktop_item_copy (boxed);
}
static void
_purple_desktop_item_free (gpointer boxed)
{
purple_desktop_item_unref (boxed);
}
/* Note, does not include the trailing \n */
static char *
my_fgets (char *buf, gsize bufsize, FILE *df)
{
int c;
gsize pos;
g_return_val_if_fail (buf != NULL, NULL);
g_return_val_if_fail (df != NULL, NULL);
pos = 0;
buf[0] = '\0';
do {
c = getc (df);
if (c == EOF || c == '\n')
break;
buf[pos++] = c;
} while (pos < bufsize-1);
if (c == EOF && pos == 0)
return NULL;
buf[pos] = '\0';
return buf;
}
static Encoding
get_encoding (FILE *df)
{
gboolean old_kde = FALSE;
char buf [BUFSIZ];
gboolean all_valid_utf8 = TRUE;
while (my_fgets (buf, sizeof (buf), df) != NULL) {
if (strncmp (PURPLE_DESKTOP_ITEM_ENCODING,
buf,
strlen (PURPLE_DESKTOP_ITEM_ENCODING)) == 0) {
char *p = &buf[strlen (PURPLE_DESKTOP_ITEM_ENCODING)];
if (*p == ' ')
p++;
if (*p != '=')
continue;
p++;
if (*p == ' ')
p++;
if (purple_strequal (p, "UTF-8")) {
return ENCODING_UTF8;
} else if (purple_strequal (p, "Legacy-Mixed")) {
return ENCODING_LEGACY_MIXED;
} else {
/* According to the spec we're not supposed
* to read a file like this */
return ENCODING_UNKNOWN;
}
} else if (purple_strequal ("[KDE Desktop Entry]", buf)) {
old_kde = TRUE;
/* don't break yet, we still want to support
* Encoding even here */
}
if (all_valid_utf8 && ! g_utf8_validate (buf, -1, NULL))
all_valid_utf8 = FALSE;
}
if (old_kde)
return ENCODING_LEGACY_MIXED;
/* A dilemma, new KDE files are in UTF-8 but have no Encoding
* info, at this time we really can't tell. The best thing to
* do right now is to just assume UTF-8 if the whole file
* validates as utf8 I suppose */
if (all_valid_utf8)
return ENCODING_UTF8;
else
return ENCODING_LEGACY_MIXED;
}
static char *
snarf_locale_from_key (const char *key)
{
const char *brace;
char *locale, *p;
brace = strchr (key, '[');
if (brace == NULL)
return NULL;
locale = g_strdup (brace + 1);
if (*locale == '\0') {
g_free (locale);
return NULL;
}
p = strchr (locale, ']');
if (p == NULL) {
g_free (locale);
return NULL;
}
*p = '\0';
return locale;
}
static gboolean
check_locale (const char *locale)
{
GIConv cd = g_iconv_open ("UTF-8", locale);
if ((GIConv)-1 == cd)
return FALSE;
g_iconv_close (cd);
return TRUE;
}
static void
insert_locales (GHashTable *encodings, char *enc, ...)
{
va_list args;
char *s;
va_start (args, enc);
for (;;) {
s = va_arg (args, char *);
if (s == NULL)
break;
g_hash_table_insert (encodings, s, enc);
}
va_end (args);
}
/* make a standard conversion table from the desktop standard spec */
static GHashTable *
init_encodings (void)
{
GHashTable *encodings = g_hash_table_new (g_str_hash, g_str_equal);
/* "C" is plain ascii */
insert_locales (encodings, "ASCII", "C", NULL);
insert_locales (encodings, "ARMSCII-8", "by", NULL);
insert_locales (encodings, "BIG5", "zh_TW", NULL);
insert_locales (encodings, "CP1251", "be", "bg", NULL);
if (check_locale ("EUC-CN")) {
insert_locales (encodings, "EUC-CN", "zh_CN", NULL);
} else {
insert_locales (encodings, "GB2312", "zh_CN", NULL);
}
insert_locales (encodings, "EUC-JP", "ja", NULL);
insert_locales (encodings, "EUC-KR", "ko", NULL);
/*insert_locales (encodings, "GEORGIAN-ACADEMY", NULL);*/
insert_locales (encodings, "GEORGIAN-PS", "ka", NULL);
insert_locales (encodings, "ISO-8859-1", "br", "ca", "da", "de", "en", "es", "eu", "fi", "fr", "gl", "it", "nl", "wa", "no", "pt", "pt", "sv", NULL);
insert_locales (encodings, "ISO-8859-2", "cs", "hr", "hu", "pl", "ro", "sk", "sl", "sq", "sr", NULL);
insert_locales (encodings, "ISO-8859-3", "eo", NULL);
insert_locales (encodings, "ISO-8859-5", "mk", "sp", NULL);
insert_locales (encodings, "ISO-8859-7", "el", NULL);
insert_locales (encodings, "ISO-8859-9", "tr", NULL);
insert_locales (encodings, "ISO-8859-13", "lt", "lv", "mi", NULL);
insert_locales (encodings, "ISO-8859-14", "ga", "cy", NULL);
insert_locales (encodings, "ISO-8859-15", "et", NULL);
insert_locales (encodings, "KOI8-R", "ru", NULL);
insert_locales (encodings, "KOI8-U", "uk", NULL);
if (check_locale ("TCVN-5712")) {
insert_locales (encodings, "TCVN-5712", "vi", NULL);
} else {
insert_locales (encodings, "TCVN", "vi", NULL);
}
insert_locales (encodings, "TIS-620", "th", NULL);
/*insert_locales (encodings, "VISCII", NULL);*/
return encodings;
}
static const char *
get_encoding_from_locale (const char *locale)
{
char lang[3];
const char *encoding;
static GHashTable *encodings = NULL;
if (locale == NULL)
return NULL;
/* if locale includes encoding, use it */
encoding = strchr (locale, '.');
if (encoding != NULL) {
return encoding+1;
}
if (encodings == NULL)
encodings = init_encodings ();
/* first try the entire locale (at this point ll_CC) */
encoding = g_hash_table_lookup (encodings, locale);
if (encoding != NULL)
return encoding;
/* Try just the language */
strncpy (lang, locale, 2);
lang[2] = '\0';
return g_hash_table_lookup (encodings, lang);
}
static char *
decode_string_and_dup (const char *s)
{
char *p = g_malloc (strlen (s) + 1);
char *q = p;
do {
if (*s == '\\'){
switch (*(++s)){
case 's':
*p++ = ' ';
break;
case 't':
*p++ = '\t';
break;
case 'n':
*p++ = '\n';
break;
case '\\':
*p++ = '\\';
break;
case 'r':
*p++ = '\r';
break;
default:
*p++ = '\\';
*p++ = *s;
break;
}
} else {
*p++ = *s;
}
} while (*s++);
return q;
}
static char *
decode_string (const char *value, Encoding encoding, const char *locale)
{
char *retval = NULL;
/* if legacy mixed, then convert */
if (locale != NULL && encoding == ENCODING_LEGACY_MIXED) {
const char *char_encoding = get_encoding_from_locale (locale);
char *utf8_string;
if (char_encoding == NULL)
return NULL;
if (purple_strequal (char_encoding, "ASCII")) {
return decode_string_and_dup (value);
}
utf8_string = g_convert (value, -1, "UTF-8", char_encoding,
NULL, NULL, NULL);
if (utf8_string == NULL)
return NULL;
retval = decode_string_and_dup (utf8_string);
g_free (utf8_string);
return retval;
/* if utf8, then validate */
} else if (locale != NULL && encoding == ENCODING_UTF8) {
if ( ! g_utf8_validate (value, -1, NULL))
/* invalid utf8, ignore this key */
return NULL;
return decode_string_and_dup (value);
} else {
/* Meaning this is not a localized string */
return decode_string_and_dup (value);
}
}
/************************************************************
* Parser: *
************************************************************/
static gboolean G_GNUC_CONST
standard_is_boolean (const char * key)
{
static GHashTable *bools = NULL;
if (bools == NULL) {
bools = g_hash_table_new (g_str_hash, g_str_equal);
g_hash_table_insert (bools,
PURPLE_DESKTOP_ITEM_NO_DISPLAY,
PURPLE_DESKTOP_ITEM_NO_DISPLAY);
g_hash_table_insert (bools,
PURPLE_DESKTOP_ITEM_HIDDEN,
PURPLE_DESKTOP_ITEM_HIDDEN);
g_hash_table_insert (bools,
PURPLE_DESKTOP_ITEM_TERMINAL,
PURPLE_DESKTOP_ITEM_TERMINAL);
g_hash_table_insert (bools,
PURPLE_DESKTOP_ITEM_READ_ONLY,
PURPLE_DESKTOP_ITEM_READ_ONLY);
}
return g_hash_table_lookup (bools, key) != NULL;
}
static gboolean G_GNUC_CONST
standard_is_strings (const char *key)
{
static GHashTable *strings = NULL;
if (strings == NULL) {
strings = g_hash_table_new (g_str_hash, g_str_equal);
g_hash_table_insert (strings,
PURPLE_DESKTOP_ITEM_FILE_PATTERN,
PURPLE_DESKTOP_ITEM_FILE_PATTERN);
g_hash_table_insert (strings,
PURPLE_DESKTOP_ITEM_ACTIONS,
PURPLE_DESKTOP_ITEM_ACTIONS);
g_hash_table_insert (strings,
PURPLE_DESKTOP_ITEM_MIME_TYPE,
PURPLE_DESKTOP_ITEM_MIME_TYPE);
g_hash_table_insert (strings,
PURPLE_DESKTOP_ITEM_PATTERNS,
PURPLE_DESKTOP_ITEM_PATTERNS);
g_hash_table_insert (strings,
PURPLE_DESKTOP_ITEM_SORT_ORDER,
PURPLE_DESKTOP_ITEM_SORT_ORDER);
}
return g_hash_table_lookup (strings, key) != NULL;
}
/* If no need to cannonize, returns NULL */
static char *
cannonize (const char *key, const char *value)
{
if (standard_is_boolean (key)) {
if (value[0] == 'T' ||
value[0] == 't' ||
value[0] == 'Y' ||
value[0] == 'y' ||
atoi (value) != 0) {
return g_strdup ("true");
} else {
return g_strdup ("false");
}
} else if (standard_is_strings (key)) {
int len = strlen (value);
if (len == 0 || value[len-1] != ';') {
return g_strconcat (value, ";", NULL);
}
}
/* XXX: Perhaps we should canonize numeric values as well, but this
* has caused some subtle problems before so it needs to be done
* carefully if at all */
return NULL;
}
static void
insert_key (PurpleDesktopItem *item,
Section *cur_section,
Encoding encoding,
const char *key,
const char *value,
gboolean old_kde,
gboolean no_translations)
{
char *k;
char *val;
/* we always store everything in UTF-8 */
if (cur_section == NULL &&
purple_strequal (key, PURPLE_DESKTOP_ITEM_ENCODING)) {
k = g_strdup (key);
val = g_strdup ("UTF-8");
} else {
char *locale = snarf_locale_from_key (key);
/* If we're ignoring translations */
if (no_translations && locale != NULL) {
g_free (locale);
return;
}
val = decode_string (value, encoding, locale);
/* Ignore this key, it's whacked */
if (val == NULL) {
g_free (locale);
return;
}
g_strchomp (val);
/* For old KDE entries, we can also split by a comma
* on sort order, so convert to semicolons */
if (old_kde &&
cur_section == NULL &&
purple_strequal (key, PURPLE_DESKTOP_ITEM_SORT_ORDER) &&
strchr (val, ';') == NULL) {
int i;
for (i = 0; val[i] != '\0'; i++) {
if (val[i] == ',')
val[i] = ';';
}
}
/* Check some types, not perfect, but catches a lot
* of things */
if (cur_section == NULL) {
char *cannon = cannonize (key, val);
if (cannon != NULL) {
g_free (val);
val = cannon;
}
}
k = g_strdup (key);
/* Take care of the language part */
if (locale != NULL &&
purple_strequal (locale, "C")) {
char *p;
/* Whack C locale */
p = strchr (k, '[');
if(p) *p = '\0';
g_free (locale);
} else if (locale != NULL) {
char *p, *brace;
/* Whack the encoding part */
p = strchr (locale, '.');
if (p != NULL)
*p = '\0';
if (g_list_find_custom (item->languages, locale,
(GCompareFunc)strcmp) == NULL) {
item->languages = g_list_prepend
(item->languages, locale);
} else {
g_free (locale);
}
/* Whack encoding from encoding in the key */
brace = strchr (k, '[');
if(brace != NULL) {
p = strchr (brace, '.');
if (p != NULL) {
*p = ']';
*(p+1) = '\0';
}
}
}
}
if (cur_section == NULL) {
/* only add to list if we haven't seen it before */
if (g_hash_table_lookup (item->main_hash, k) == NULL) {
item->keys = g_list_prepend (item->keys,
g_strdup (k));
}
/* later duplicates override earlier ones */
g_hash_table_replace (item->main_hash, k, val);
} else {
char *full = g_strdup_printf
("%s/%s",
cur_section->name, k);
/* only add to list if we haven't seen it before */
if (g_hash_table_lookup (item->main_hash, full) == NULL) {
cur_section->keys =
g_list_prepend (cur_section->keys, k);
}
/* later duplicates override earlier ones */
g_hash_table_replace (item->main_hash,
full, val);
}
}
static const char *
lookup (const PurpleDesktopItem *item, const char *key)
{
return g_hash_table_lookup (item->main_hash, key);
}
static void
setup_type (PurpleDesktopItem *item, const char *uri)
{
const char *type = g_hash_table_lookup (item->main_hash,
PURPLE_DESKTOP_ITEM_TYPE);
if (type == NULL && uri != NULL) {
char *base = g_path_get_basename (uri);
if (purple_strequal(base, ".directory")) {
/* This gotta be a directory */
g_hash_table_replace (item->main_hash,
g_strdup (PURPLE_DESKTOP_ITEM_TYPE),
g_strdup ("Directory"));
item->keys = g_list_prepend
(item->keys, g_strdup (PURPLE_DESKTOP_ITEM_TYPE));
item->type = PURPLE_DESKTOP_ITEM_TYPE_DIRECTORY;
} else {
item->type = PURPLE_DESKTOP_ITEM_TYPE_NULL;
}
g_free (base);
} else {
item->type = type_from_string (type);
}
}
static const char *
lookup_locale (const PurpleDesktopItem *item, const char *key, const char *locale)
{
if (locale == NULL ||
purple_strequal (locale, "C")) {
return lookup (item, key);
} else {
const char *ret;
char *full = g_strdup_printf ("%s[%s]", key, locale);
ret = lookup (item, full);
g_free (full);
return ret;
}
}
/**
* Fallback to find something suitable for C locale.
*
* @return A newly allocated string which should be g_freed by the caller.
*/
static char *
try_english_key (PurpleDesktopItem *item, const char *key)
{
char *str = NULL;
char *locales[] = { "en_US", "en_GB", "en_AU", "en", NULL };
int i;
for (i = 0; locales[i] != NULL && str == NULL; i++) {
str = g_strdup (lookup_locale (item, key, locales[i]));
}
if (str != NULL) {
/* We need a 7-bit ascii string, so whack all
* above 127 chars */
guchar *p;
for (p = (guchar *)str; *p != '\0'; p++) {
if (*p > 127)
*p = '?';
}
}
return str;
}
static void
sanitize (PurpleDesktopItem *item, const char *uri)
{
const char *type;
type = lookup (item, PURPLE_DESKTOP_ITEM_TYPE);
/* understand old gnome style url exec thingies */
if (purple_strequal(type, "URL")) {
const char *exec = lookup (item, PURPLE_DESKTOP_ITEM_EXEC);
set (item, PURPLE_DESKTOP_ITEM_TYPE, "Link");
if (exec != NULL) {
/* Note, this must be in this order */
set (item, PURPLE_DESKTOP_ITEM_URL, exec);
set (item, PURPLE_DESKTOP_ITEM_EXEC, NULL);
}
}
/* we make sure we have Name, Encoding and Version */
if (lookup (item, PURPLE_DESKTOP_ITEM_NAME) == NULL) {
char *name = try_english_key (item, PURPLE_DESKTOP_ITEM_NAME);
/* If no name, use the basename */
if (name == NULL && uri != NULL)
name = g_path_get_basename (uri);
/* If no uri either, use same default as gnome_desktop_item_new */
if (name == NULL)
name = g_strdup (_("No name"));
g_hash_table_replace (item->main_hash,
g_strdup (PURPLE_DESKTOP_ITEM_NAME),
name);
item->keys = g_list_prepend
(item->keys, g_strdup (PURPLE_DESKTOP_ITEM_NAME));
}
if (lookup (item, PURPLE_DESKTOP_ITEM_ENCODING) == NULL) {
/* We store everything in UTF-8 so write that down */
g_hash_table_replace (item->main_hash,
g_strdup (PURPLE_DESKTOP_ITEM_ENCODING),
g_strdup ("UTF-8"));
item->keys = g_list_prepend
(item->keys, g_strdup (PURPLE_DESKTOP_ITEM_ENCODING));
}
if (lookup (item, PURPLE_DESKTOP_ITEM_VERSION) == NULL) {
/* this is the version that we follow, so write it down */
g_hash_table_replace (item->main_hash,
g_strdup (PURPLE_DESKTOP_ITEM_VERSION),
g_strdup ("1.0"));
item->keys = g_list_prepend
(item->keys, g_strdup (PURPLE_DESKTOP_ITEM_VERSION));
}
}
enum {
FirstBrace,
OnSecHeader,
IgnoreToEOL,
IgnoreToEOLFirst,
KeyDef,
KeyDefOnKey,
KeyValue
};
static PurpleDesktopItem *
ditem_load (FILE *df,
gboolean no_translations,
const char *uri)
{
int state;
char CharBuffer [1024];
char *next = CharBuffer;
int c;
Encoding encoding;
PurpleDesktopItem *item;
Section *cur_section = NULL;
char *key = NULL;
gboolean old_kde = FALSE;
encoding = get_encoding (df);
if (encoding == ENCODING_UNKNOWN) {
fclose(df);
/* spec says, don't read this file */
printf ("Unknown encoding of .desktop file");
return NULL;
}
/* Rewind since get_encoding goes through the file */
if (fseek(df, 0L, SEEK_SET)) {
fclose(df);
/* spec says, don't read this file */
printf ("fseek() error on .desktop file");
return NULL;
}
item = _purple_desktop_item_new ();
item->modified = FALSE;
/* Note: location and mtime are filled in by the new_from_file
* function since it has those values */
#define PURPLE_DESKTOP_ITEM_OVERFLOW (next == &CharBuffer [sizeof(CharBuffer)-1])
state = FirstBrace;
while ((c = getc (df)) != EOF) {
if (c == '\r') /* Ignore Carriage Return */
continue;
switch (state) {
case OnSecHeader:
if (c == ']' || PURPLE_DESKTOP_ITEM_OVERFLOW) {
*next = '\0';
next = CharBuffer;
/* keys were inserted in reverse */
if (cur_section != NULL &&
cur_section->keys != NULL) {
cur_section->keys = g_list_reverse
(cur_section->keys);
}
if (purple_strequal (CharBuffer, "KDE Desktop Entry")) {
/* Main section */
cur_section = NULL;
old_kde = TRUE;
} else if (purple_strequal(CharBuffer, "Desktop Entry")) {
/* Main section */
cur_section = NULL;
} else {
cur_section = g_new0 (Section, 1);
cur_section->name =
g_strdup (CharBuffer);
cur_section->keys = NULL;
item->sections = g_list_prepend
(item->sections, cur_section);
}
state = IgnoreToEOL;
} else if (c == '[') {
/* FIXME: probably error out instead of ignoring this */
} else {
*next++ = c;
}
break;
case IgnoreToEOL:
case IgnoreToEOLFirst:
if (c == '\n'){
if (state == IgnoreToEOLFirst)
state = FirstBrace;
else
state = KeyDef;
next = CharBuffer;
}
break;
case FirstBrace:
case KeyDef:
case KeyDefOnKey:
if (c == '#') {
if (state == FirstBrace)
state = IgnoreToEOLFirst;
else
state = IgnoreToEOL;
break;
}
if (c == '[' && state != KeyDefOnKey){
state = OnSecHeader;
next = CharBuffer;
g_free (key);
key = NULL;
break;
}
/* On first pass, don't allow dangling keys */
if (state == FirstBrace)
break;
if ((c == ' ' && state != KeyDefOnKey) || c == '\t')
break;
if (c == '\n' || PURPLE_DESKTOP_ITEM_OVERFLOW) { /* Abort Definition */
next = CharBuffer;
state = KeyDef;
break;
}
if (c == '=' || PURPLE_DESKTOP_ITEM_OVERFLOW){
*next = '\0';
g_free (key);
key = g_strdup (CharBuffer);
state = KeyValue;
next = CharBuffer;
} else {
*next++ = c;
state = KeyDefOnKey;
}
break;
case KeyValue:
if (PURPLE_DESKTOP_ITEM_OVERFLOW || c == '\n'){
*next = '\0';
insert_key (item, cur_section, encoding,
key, CharBuffer, old_kde,
no_translations);
g_free (key);
key = NULL;
state = (c == '\n') ? KeyDef : IgnoreToEOL;
next = CharBuffer;
} else {
*next++ = c;
}
break;
} /* switch */
} /* while ((c = getc_unlocked (f)) != EOF) */
if (c == EOF && state == KeyValue) {
*next = '\0';
insert_key (item, cur_section, encoding,
key, CharBuffer, old_kde,
no_translations);
g_free (key);
key = NULL;
}
#undef PURPLE_DESKTOP_ITEM_OVERFLOW
/* keys were inserted in reverse */
if (cur_section != NULL &&
cur_section->keys != NULL) {
cur_section->keys = g_list_reverse (cur_section->keys);
}
/* keys were inserted in reverse */
item->keys = g_list_reverse (item->keys);
/* sections were inserted in reverse */
item->sections = g_list_reverse (item->sections);
/* sanitize some things */
sanitize (item, uri);
/* make sure that we set up the type */
setup_type (item, uri);
fclose (df);
return item;
}
static void
copy_string_hash (gpointer key, gpointer value, gpointer user_data)
{
GHashTable *copy = user_data;
g_hash_table_replace (copy,
g_strdup (key),
g_strdup (value));
}
static void
free_section (gpointer data, gpointer user_data)
{
Section *section = data;
g_free (section->name);
section->name = NULL;
g_list_foreach (section->keys, (GFunc)g_free, NULL);
g_list_free (section->keys);
section->keys = NULL;
g_free (section);
}
static Section *
dup_section (Section *sec)
{
GList *li;
Section *retval = g_new0 (Section, 1);
retval->name = g_strdup (sec->name);
retval->keys = g_list_copy (sec->keys);
for (li = retval->keys; li != NULL; li = li->next)
li->data = g_strdup (li->data);
return retval;
}
/**************************************************************************
* Public functions
**************************************************************************/
PurpleDesktopItem *
purple_desktop_item_new_from_file (const char *filename)
{
PurpleDesktopItem *retval;
FILE *dfile;
g_return_val_if_fail (filename != NULL, NULL);
dfile = g_fopen(filename, "r");
if (!dfile) {
printf ("Can't open %s: %s", filename, g_strerror(errno));
return NULL;
}
retval = ditem_load(dfile, FALSE, filename);
return retval;
}
PurpleDesktopItemType
purple_desktop_item_get_entry_type (const PurpleDesktopItem *item)
{
g_return_val_if_fail (item != NULL, 0);
g_return_val_if_fail (item->refcount > 0, 0);
return item->type;
}
const char *
purple_desktop_item_get_string (const PurpleDesktopItem *item,
const char *attr)
{
g_return_val_if_fail (item != NULL, NULL);
g_return_val_if_fail (item->refcount > 0, NULL);
g_return_val_if_fail (attr != NULL, NULL);
return lookup (item, attr);
}
PurpleDesktopItem *
purple_desktop_item_copy (const PurpleDesktopItem *item)
{
GList *li;
PurpleDesktopItem *retval;
g_return_val_if_fail (item != NULL, NULL);
g_return_val_if_fail (item->refcount > 0, NULL);
retval = _purple_desktop_item_new ();
retval->type = item->type;
retval->modified = item->modified;
retval->location = g_strdup (item->location);
retval->mtime = item->mtime;
/* Languages */
retval->languages = g_list_copy (item->languages);
for (li = retval->languages; li != NULL; li = li->next)
li->data = g_strdup (li->data);
/* Keys */
retval->keys = g_list_copy (item->keys);
for (li = retval->keys; li != NULL; li = li->next)
li->data = g_strdup (li->data);
/* Sections */
retval->sections = g_list_copy (item->sections);
for (li = retval->sections; li != NULL; li = li->next)
li->data = dup_section (li->data);
retval->main_hash = g_hash_table_new_full (g_str_hash, g_str_equal,
(GDestroyNotify) g_free,
(GDestroyNotify) g_free);
g_hash_table_foreach (item->main_hash,
copy_string_hash,
retval->main_hash);
return retval;
}
void
purple_desktop_item_unref (PurpleDesktopItem *item)
{
g_return_if_fail (item != NULL);
g_return_if_fail (item->refcount > 0);
item->refcount--;
if(item->refcount != 0)
return;
g_list_foreach (item->languages, (GFunc)g_free, NULL);
g_list_free (item->languages);
item->languages = NULL;
g_list_foreach (item->keys, (GFunc)g_free, NULL);
g_list_free (item->keys);
item->keys = NULL;
g_list_foreach (item->sections, free_section, NULL);
g_list_free (item->sections);
item->sections = NULL;
g_hash_table_destroy (item->main_hash);
item->main_hash = NULL;
g_free (item->location);
item->location = NULL;
g_free (item);
}
GType
purple_desktop_item_get_type (void)
{
static GType type = 0;
if (type == 0) {
type = g_boxed_type_register_static ("PurpleDesktopItem",
_purple_desktop_item_copy,
_purple_desktop_item_free);
}
return type;
}