glib/gio/gosxappinfo.c

778 lines
19 KiB
C

/* GIO - GLib Input, Output and Streaming Library
*
* Copyright (C) 2014 Patrick Griffis
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
*/
#include "config.h"
#include "gappinfo.h"
#include "gosxappinfo.h"
#include "gcontenttype.h"
#include "gfile.h"
#include "gfileicon.h"
#include "gioerror.h"
#import <CoreFoundation/CoreFoundation.h>
#import <Foundation/Foundation.h>
#import <ApplicationServices/ApplicationServices.h>
/**
* SECTION:gosxappinfo
* @title: GOsxAppInfo
* @short_description: Application information from NSBundles
* @include: gio/gosxappinfo.h
*
* #GOsxAppInfo is an implementation of #GAppInfo based on NSBundle information.
*
* Note that `<gio/gosxappinfo.h>` is unique to OSX.
*/
static void g_osx_app_info_iface_init (GAppInfoIface *iface);
static const char *g_osx_app_info_get_id (GAppInfo *appinfo);
/**
* GOsxAppInfo:
*
* Information about an installed application from a NSBundle.
*/
struct _GOsxAppInfo
{
GObject parent_instance;
NSBundle *bundle;
/* Note that these are all NULL until first call
* to getter at which point they are cached here
*/
gchar *id;
gchar *name;
gchar *executable;
gchar *filename;
GIcon *icon;
};
G_DEFINE_TYPE_WITH_CODE (GOsxAppInfo, g_osx_app_info, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (G_TYPE_APP_INFO, g_osx_app_info_iface_init))
static GOsxAppInfo *
g_osx_app_info_new (NSBundle *bundle)
{
GOsxAppInfo *info = g_object_new (G_TYPE_OSX_APP_INFO, NULL);
info->bundle = [bundle retain];
return info;
}
static void
g_osx_app_info_init (GOsxAppInfo *info)
{
}
static void
g_osx_app_info_finalize (GObject *object)
{
GOsxAppInfo *info = G_OSX_APP_INFO (object);
g_free (info->id);
g_free (info->name);
g_free (info->executable);
g_free (info->filename);
g_clear_object (&info->icon);
[info->bundle release];
G_OBJECT_CLASS (g_osx_app_info_parent_class)->finalize (object);
}
static void
g_osx_app_info_class_init (GOsxAppInfoClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->finalize = g_osx_app_info_finalize;
}
static GAppInfo *
g_osx_app_info_dup (GAppInfo *appinfo)
{
GOsxAppInfo *info;
GOsxAppInfo *new_info;
g_return_val_if_fail (appinfo != NULL, NULL);
info = G_OSX_APP_INFO (appinfo);
new_info = g_osx_app_info_new ([info->bundle retain]);
return G_APP_INFO (new_info);
}
static gboolean
g_osx_app_info_equal (GAppInfo *appinfo1,
GAppInfo *appinfo2)
{
const gchar *str1, *str2;
g_return_val_if_fail (appinfo1 != NULL, FALSE);
g_return_val_if_fail (appinfo2 != NULL, FALSE);
str1 = g_osx_app_info_get_id (appinfo1);
str2 = g_osx_app_info_get_id (appinfo2);
return (g_strcmp0 (str1, str2) == 0);
}
/*< internal >
* get_bundle_string_value:
* @bundle: a #NSBundle
* @key: an #NSString key
*
* Returns a value from a bundles info.plist file.
* It will be utf8 encoded and it must be g_free()'d.
*
*/
static gchar *
get_bundle_string_value (NSBundle *bundle,
NSString *key)
{
NSString *value;
const gchar *cvalue;
gchar *ret;
g_return_val_if_fail (bundle != NULL, NULL);
value = (NSString *)[bundle objectForInfoDictionaryKey: key];
if (!value)
return NULL;
cvalue = [value cStringUsingEncoding: NSUTF8StringEncoding];
ret = g_strdup (cvalue);
return ret;
}
static CFStringRef
create_cfstring_from_cstr (const gchar *cstr)
{
return CFStringCreateWithCString (NULL, cstr, kCFStringEncodingUTF8);
}
static gchar *
create_cstr_from_cfstring (CFStringRef str)
{
const gchar *cstr;
CFIndex length = CFStringGetLength (str);
char *buffer = NULL;
if (str == NULL)
return NULL;
cstr = CFStringGetCStringPtr (str, kCFStringEncodingUTF8);
/* CFStringGetCStringPtr returns "NULL if the internal storage of
* theString does not allow [a pointer] to be returned efficiently".
* (Apple's docs don't say what that means). In that case we must
* use CFStringGetCString as a fallback.
*/
if (cstr != NULL)
{
CFRelease (str);
return g_strdup (cstr);
}
buffer = g_malloc0 (length + 1);
/* Start off with a buffer size sufficient for the most likely case
* that the CFString is ASCII so the UTF8 representation will be 1
* byte per code point. Keep trying up to 4 bytes per code point,
* the max allowed by RFC3629.
*/
for (int i = 1; i <= 4; ++i)
{
if (CFStringGetCString (str, buffer, length, kCFStringEncodingUTF8))
{
CFRelease (str);
return buffer;
}
length += length;
buffer = g_realloc (buffer, length + 1);
}
g_free (buffer);
CFRelease (str);
return NULL;
}
static char *
url_escape_hostname (const char *url)
{
char *host_start, *ret;
host_start = strstr (url, "://");
if (host_start != NULL)
{
char *host_end, *scheme, *host, *hostname;
scheme = g_strndup (url, host_start - url);
host_start += 3;
host_end = strchr (host_start, '/');
if (host_end != NULL)
host = g_strndup (host_start, host_end - host_start);
else
host = g_strdup (host_start);
hostname = g_hostname_to_ascii (host);
ret = g_strconcat (scheme, "://", hostname, host_end, NULL);
g_free (scheme);
g_free (host);
g_free (hostname);
return ret;
}
return g_strdup (url);
}
static CFURLRef
create_url_from_cstr (gchar *cstr,
gboolean is_file)
{
gchar *puny_cstr;
CFStringRef str;
CFURLRef url;
puny_cstr = url_escape_hostname (cstr);
str = CFStringCreateWithCString (NULL, puny_cstr ? puny_cstr : cstr, kCFStringEncodingUTF8);
if (is_file)
url = CFURLCreateWithFileSystemPath (NULL, str, kCFURLPOSIXPathStyle, FALSE);
else
url = CFURLCreateWithString (NULL, str, NULL);
if (!url)
g_debug ("Creating CFURL from %s %s failed!", cstr, is_file ? "file" : "uri");
g_free (puny_cstr);
CFRelease(str);
return url;
}
static CFArrayRef
create_url_list_from_glist (GList *uris,
gboolean are_files)
{
GList *lst;
int len = g_list_length (uris);
CFMutableArrayRef array;
if (!len)
return NULL;
array = CFArrayCreateMutable (NULL, len, &kCFTypeArrayCallBacks);
if (!array)
return NULL;
for (lst = uris; lst != NULL && lst->data; lst = lst->next)
{
CFURLRef url = create_url_from_cstr ((char*)lst->data, are_files);
if (url)
CFArrayAppendValue (array, url);
}
return (CFArrayRef)array;
}
static LSLaunchURLSpec *
create_urlspec_for_appinfo (GOsxAppInfo *info,
GList *uris,
gboolean are_files)
{
LSLaunchURLSpec *urlspec = g_new0 (LSLaunchURLSpec, 1);
gchar *app_cstr = g_osx_app_info_get_filename (info);
/* Strip file:// from app url but ensure filesystem url */
urlspec->appURL = create_url_from_cstr (app_cstr + 7, TRUE);
urlspec->launchFlags = kLSLaunchDefaults;
urlspec->itemURLs = create_url_list_from_glist (uris, are_files);
return urlspec;
}
static void
free_urlspec (LSLaunchURLSpec *urlspec)
{
if (urlspec->itemURLs)
{
CFArrayRemoveAllValues ((CFMutableArrayRef)urlspec->itemURLs);
CFRelease (urlspec->itemURLs);
}
CFRelease (urlspec->appURL);
g_free (urlspec);
}
static NSBundle *
get_bundle_for_url (CFURLRef app_url)
{
NSBundle *bundle = [NSBundle bundleWithURL: (NSURL*)app_url];
if (!bundle)
{
g_debug ("Bundle not found for url.");
return NULL;
}
return bundle;
}
static NSBundle *
get_bundle_for_id (CFStringRef bundle_id)
{
CFURLRef app_url;
NSBundle *bundle;
#ifdef AVAILABLE_MAC_OS_X_VERSION_10_10_AND_LATER
CFArrayRef urls = LSCopyApplicationURLsForBundleIdentifier (bundle_id, NULL);
if (urls)
{
/* TODO: if there's multiple, we should perhaps prefer one thats in $HOME,
* instead of just always picking the first.
*/
app_url = CFArrayGetValueAtIndex (urls, 0);
CFRetain (app_url);
CFRelease (urls);
}
else
#else
if (LSFindApplicationForInfo (kLSUnknownCreator, bundle_id, NULL, NULL, &app_url))
#endif
{
#ifdef G_ENABLE_DEBUG /* This can fail often, no reason to alloc strings */
gchar *id_str = create_cstr_from_cfstring (bundle_id);
g_debug ("Application not found for id \"%s\".", id_str);
g_free (id_str);
#endif
return NULL;
}
bundle = get_bundle_for_url (app_url);
CFRelease (app_url);
return bundle;
}
static const char *
g_osx_app_info_get_id (GAppInfo *appinfo)
{
GOsxAppInfo *info = G_OSX_APP_INFO (appinfo);
if (!info->id)
info->id = get_bundle_string_value (info->bundle, @"CFBundleIdentifier");
return info->id;
}
static const char *
g_osx_app_info_get_name (GAppInfo *appinfo)
{
GOsxAppInfo *info = G_OSX_APP_INFO (appinfo);
if (!info->name)
info->name = get_bundle_string_value (info->bundle, @"CFBundleName");
return info->name;
}
static const char *
g_osx_app_info_get_display_name (GAppInfo *appinfo)
{
return g_osx_app_info_get_name (appinfo);
}
static const char *
g_osx_app_info_get_description (GAppInfo *appinfo)
{
/* Bundles do not contain descriptions */
return NULL;
}
static const char *
g_osx_app_info_get_executable (GAppInfo *appinfo)
{
GOsxAppInfo *info = G_OSX_APP_INFO (appinfo);
if (!info->executable)
info->executable = get_bundle_string_value (info->bundle, @"CFBundleExecutable");
return info->executable;
}
char *
g_osx_app_info_get_filename (GOsxAppInfo *info)
{
g_return_val_if_fail (info != NULL, NULL);
if (!info->filename)
{
info->filename = g_strconcat ("file://", [[info->bundle bundlePath]
cStringUsingEncoding: NSUTF8StringEncoding],
NULL);
}
return info->filename;
}
static const char *
g_osx_app_info_get_commandline (GAppInfo *appinfo)
{
/* There isn't really a command line value */
return NULL;
}
static GIcon *
g_osx_app_info_get_icon (GAppInfo *appinfo)
{
GOsxAppInfo *info = G_OSX_APP_INFO (appinfo);
if (!info->icon)
{
gchar *icon_name, *app_uri, *icon_uri;
GFile *file;
icon_name = get_bundle_string_value (info->bundle, @"CFBundleIconFile");
if (!icon_name)
return NULL;
app_uri = g_osx_app_info_get_filename (info);
icon_uri = g_strconcat (app_uri + 7, "/Contents/Resources/", icon_name,
g_str_has_suffix (icon_name, ".icns") ? NULL : ".icns", NULL);
g_free (icon_name);
file = g_file_new_for_path (icon_uri);
info->icon = g_file_icon_new (file);
g_object_unref (file);
g_free (icon_uri);
}
return info->icon;
}
static gboolean
g_osx_app_info_launch_internal (GAppInfo *appinfo,
GList *uris,
gboolean are_files,
GError **error)
{
GOsxAppInfo *info = G_OSX_APP_INFO (appinfo);
LSLaunchURLSpec *urlspec = create_urlspec_for_appinfo (info, uris, are_files);
gint ret, success = TRUE;
if ((ret = LSOpenFromURLSpec (urlspec, NULL)))
{
/* TODO: Better error codes */
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Opening application failed with code %d", ret);
success = FALSE;
}
free_urlspec (urlspec);
return success;
}
static gboolean
g_osx_app_info_supports_uris (GAppInfo *appinfo)
{
return TRUE;
}
static gboolean
g_osx_app_info_supports_files (GAppInfo *appinfo)
{
return TRUE;
}
static gboolean
g_osx_app_info_launch (GAppInfo *appinfo,
GList *files,
GAppLaunchContext *launch_context,
GError **error)
{
return g_osx_app_info_launch_internal (appinfo, files, TRUE, error);
}
static gboolean
g_osx_app_info_launch_uris (GAppInfo *appinfo,
GList *uris,
GAppLaunchContext *launch_context,
GError **error)
{
return g_osx_app_info_launch_internal (appinfo, uris, FALSE, error);
}
static gboolean
g_osx_app_info_should_show (GAppInfo *appinfo)
{
/* Bundles don't have hidden attribute */
return TRUE;
}
static gboolean
g_osx_app_info_set_as_default_for_type (GAppInfo *appinfo,
const char *content_type,
GError **error)
{
return FALSE;
}
static const char **
g_osx_app_info_get_supported_types (GAppInfo *appinfo)
{
/* TODO: get CFBundleDocumentTypes */
return NULL;
}
static gboolean
g_osx_app_info_set_as_last_used_for_type (GAppInfo *appinfo,
const char *content_type,
GError **error)
{
/* Not supported. */
return FALSE;
}
static gboolean
g_osx_app_info_can_delete (GAppInfo *appinfo)
{
return FALSE;
}
static void
g_osx_app_info_iface_init (GAppInfoIface *iface)
{
iface->dup = g_osx_app_info_dup;
iface->equal = g_osx_app_info_equal;
iface->get_id = g_osx_app_info_get_id;
iface->get_name = g_osx_app_info_get_name;
iface->get_display_name = g_osx_app_info_get_display_name;
iface->get_description = g_osx_app_info_get_description;
iface->get_executable = g_osx_app_info_get_executable;
iface->get_commandline = g_osx_app_info_get_commandline;
iface->get_icon = g_osx_app_info_get_icon;
iface->get_supported_types = g_osx_app_info_get_supported_types;
iface->set_as_last_used_for_type = g_osx_app_info_set_as_last_used_for_type;
iface->set_as_default_for_type = g_osx_app_info_set_as_default_for_type;
iface->launch = g_osx_app_info_launch;
iface->launch_uris = g_osx_app_info_launch_uris;
iface->supports_uris = g_osx_app_info_supports_uris;
iface->supports_files = g_osx_app_info_supports_files;
iface->should_show = g_osx_app_info_should_show;
iface->can_delete = g_osx_app_info_can_delete;
}
GAppInfo *
g_app_info_create_from_commandline (const char *commandline,
const char *application_name,
GAppInfoCreateFlags flags,
GError **error)
{
return NULL;
}
GList *
g_osx_app_info_get_all_for_scheme (const char *cscheme)
{
CFArrayRef bundle_list;
CFStringRef scheme;
NSBundle *bundle;
GList *info_list = NULL;
gint i;
scheme = create_cfstring_from_cstr (cscheme);
bundle_list = LSCopyAllHandlersForURLScheme (scheme);
CFRelease (scheme);
if (!bundle_list)
return NULL;
for (i = 0; i < CFArrayGetCount (bundle_list); i++)
{
CFStringRef bundle_id = CFArrayGetValueAtIndex (bundle_list, i);
GAppInfo *info;
bundle = get_bundle_for_id (bundle_id);
if (!bundle)
continue;
info = G_APP_INFO (g_osx_app_info_new (bundle));
info_list = g_list_append (info_list, info);
}
return info_list;
}
GList *
g_app_info_get_all_for_type (const char *content_type)
{
gchar *mime_type;
CFArrayRef bundle_list;
CFStringRef type;
NSBundle *bundle;
GList *info_list = NULL;
gint i;
mime_type = g_content_type_get_mime_type (content_type);
if (g_str_has_prefix (mime_type, "x-scheme-handler/"))
{
gchar *scheme = strchr (mime_type, '/') + 1;
GList *ret = g_osx_app_info_get_all_for_scheme (scheme);
g_free (mime_type);
return ret;
}
g_free (mime_type);
type = create_cfstring_from_cstr (content_type);
bundle_list = LSCopyAllRoleHandlersForContentType (type, kLSRolesAll);
CFRelease (type);
if (!bundle_list)
return NULL;
for (i = 0; i < CFArrayGetCount (bundle_list); i++)
{
CFStringRef bundle_id = CFArrayGetValueAtIndex (bundle_list, i);
GAppInfo *info;
bundle = get_bundle_for_id (bundle_id);
if (!bundle)
continue;
info = G_APP_INFO (g_osx_app_info_new (bundle));
info_list = g_list_append (info_list, info);
}
return info_list;
}
GList *
g_app_info_get_recommended_for_type (const char *content_type)
{
return g_app_info_get_all_for_type (content_type);
}
GList *
g_app_info_get_fallback_for_type (const char *content_type)
{
return g_app_info_get_all_for_type (content_type);
}
GAppInfo *
g_app_info_get_default_for_type (const char *content_type,
gboolean must_support_uris)
{
gchar *mime_type;
CFStringRef type;
NSBundle *bundle;
#ifdef AVAILABLE_MAC_OS_X_VERSION_10_10_AND_LATER
CFURLRef bundle_id;
#else
CFStringRef bundle_id;
#endif
mime_type = g_content_type_get_mime_type (content_type);
if (g_str_has_prefix (mime_type, "x-scheme-handler/"))
{
gchar *scheme = strchr (mime_type, '/') + 1;
GAppInfo *ret = g_app_info_get_default_for_uri_scheme (scheme);
g_free (mime_type);
return ret;
}
g_free (mime_type);
type = create_cfstring_from_cstr (content_type);
#ifdef AVAILABLE_MAC_OS_X_VERSION_10_10_AND_LATER
bundle_id = LSCopyDefaultApplicationURLForContentType (type, kLSRolesAll, NULL);
#else
bundle_id = LSCopyDefaultRoleHandlerForContentType (type, kLSRolesAll);
#endif
CFRelease (type);
if (!bundle_id)
{
g_warning ("No default handler found for content type '%s'.", content_type);
return NULL;
}
#ifdef AVAILABLE_MAC_OS_X_VERSION_10_10_AND_LATER
bundle = get_bundle_for_url (bundle_id);
#else
bundle = get_bundle_for_id (bundle_id);
#endif
CFRelease (bundle_id);
if (!bundle)
return NULL;
return G_APP_INFO (g_osx_app_info_new (bundle));
}
GAppInfo *
g_app_info_get_default_for_uri_scheme (const char *uri_scheme)
{
CFStringRef scheme, bundle_id;
NSBundle *bundle;
scheme = create_cfstring_from_cstr (uri_scheme);
bundle_id = LSCopyDefaultHandlerForURLScheme (scheme);
CFRelease (scheme);
if (!bundle_id)
{
g_warning ("No default handler found for url scheme '%s'.", uri_scheme);
return NULL;
}
bundle = get_bundle_for_id (bundle_id);
CFRelease (bundle_id);
if (!bundle)
return NULL;
return G_APP_INFO (g_osx_app_info_new (bundle));
}
GList *
g_app_info_get_all (void)
{
/* There is no API for this afaict
* could manually do it...
*/
return NULL;
}
void
g_app_info_reset_type_associations (const char *content_type)
{
}