/**
* as_screenshot_get_image_for_locale:
* @screenshot: a #AsScreenshot instance.
* @locale: locale, or %NULL
* @width: target width
* @height: target height
*
* Gets the AsImage closest to the target size with the specified locale.
* The #AsImage may not actually be the requested size, and the application may
* have to pad / rescale the image to make it fit.
*
* FIXME: This function assumes the images are ordered in preference order, e.g.
* "en_GB -> en -> NULL"
*
* Returns: (transfer none): an #AsImage, or %NULL
*
* Since: 0.5.14
**/
AsImage *
as_screenshot_get_image_for_locale (AsScreenshot *screenshot,
const gchar *locale,
guint width, guint height)
{
AsImage *im;
AsImage *im_best = NULL;
AsScreenshotPrivate *priv = GET_PRIVATE (screenshot);
gint64 best_size = G_MAXINT64;
guint i;
gint64 tmp;
g_return_val_if_fail (AS_IS_SCREENSHOT (screenshot), NULL);
for (i = 0; i < priv->images->len; i++) {
im = g_ptr_array_index (priv->images, i);
if (!as_utils_locale_is_compatible (as_image_get_locale (im), locale))
continue;
tmp = ABS ((gint64) (width * height) -
(gint64) (as_image_get_width (im) * as_image_get_height (im)));
if (tmp < best_size) {
best_size = tmp;
im_best = im;
}
}
return im_best;
}
/**
* gs_appstream_are_screenshots_perfect:
*/
static gboolean
gs_appstream_are_screenshots_perfect (AsApp *app)
{
AsImage *image;
AsScreenshot *screenshot;
GPtrArray *screenshots;
guint height;
guint i;
guint width;
screenshots = as_app_get_screenshots (app);
if (screenshots->len == 0)
return FALSE;
for (i = 0; i < screenshots->len; i++) {
/* get the source image as the thumbs will be resized & padded */
screenshot = g_ptr_array_index (screenshots, i);
image = as_screenshot_get_source (screenshot);
if (image == NULL)
return FALSE;
width = as_image_get_width (image);
height = as_image_get_height (image);
/* too small */
if (width < AS_IMAGE_LARGE_WIDTH || height < AS_IMAGE_LARGE_HEIGHT)
return FALSE;
/* too large */
if (width > AS_IMAGE_LARGE_WIDTH * 2 || height > AS_IMAGE_LARGE_HEIGHT * 2)
return FALSE;
/* not 16:9 */
if ((width / 16) * 9 != height)
return FALSE;
}
return TRUE;
}
static gboolean
ai_app_validate_image_check (AsImage *im, AsAppValidateHelper *helper)
{
AsImageAlphaFlags alpha_flags;
const gchar *url;
gboolean require_correct_aspect_ratio = FALSE;
gdouble desired_aspect = 1.777777778;
gdouble screenshot_aspect;
guint status_code;
guint screenshot_height;
guint screenshot_width;
guint ss_size_height_max = 900;
guint ss_size_height_min = 351;
guint ss_size_width_max = 1600;
guint ss_size_width_min = 624;
g_autoptr(GdkPixbuf) pixbuf = NULL;
g_autoptr(GInputStream) stream = NULL;
g_autoptr(SoupMessage) msg = NULL;
g_autoptr(SoupURI) base_uri = NULL;
/* make the requirements more strict */
if ((helper->flags & AS_APP_VALIDATE_FLAG_STRICT) > 0) {
require_correct_aspect_ratio = TRUE;
}
/* relax the requirements a bit */
if ((helper->flags & AS_APP_VALIDATE_FLAG_RELAX) > 0) {
ss_size_height_max = 1800;
ss_size_height_min = 150;
ss_size_width_max = 3200;
ss_size_width_min = 300;
}
/* have we got network access */
if ((helper->flags & AS_APP_VALIDATE_FLAG_NO_NETWORK) > 0)
return TRUE;
/* GET file */
url = as_image_get_url (im);
g_debug ("checking %s", url);
base_uri = soup_uri_new (url);
if (!SOUP_URI_VALID_FOR_HTTP (base_uri)) {
ai_app_validate_add (helper,
AS_PROBLEM_KIND_URL_NOT_FOUND,
"<screenshot> url not valid [%s]", url);
return FALSE;
}
msg = soup_message_new_from_uri (SOUP_METHOD_GET, base_uri);
if (msg == NULL) {
g_warning ("Failed to setup message");
return FALSE;
}
/* send sync */
status_code = soup_session_send_message (helper->session, msg);
if (SOUP_STATUS_IS_TRANSPORT_ERROR(status_code)) {
ai_app_validate_add (helper,
AS_PROBLEM_KIND_URL_NOT_FOUND,
"<screenshot> failed to connect: %s [%s]",
soup_status_get_phrase(status_code), url);
return FALSE;
} else if (status_code != SOUP_STATUS_OK) {
ai_app_validate_add (helper,
AS_PROBLEM_KIND_URL_NOT_FOUND,
"<screenshot> failed to download (HTTP %d: %s) [%s]",
status_code, soup_status_get_phrase(status_code), url);
return FALSE;
}
/* check if it's a zero sized file */
if (msg->response_body->length == 0) {
ai_app_validate_add (helper,
AS_PROBLEM_KIND_FILE_INVALID,
"<screenshot> url is a zero length file [%s]",
url);
return FALSE;
}
/* create a buffer with the data */
stream = g_memory_input_stream_new_from_data (msg->response_body->data,
(gssize) msg->response_body->length,
NULL);
if (stream == NULL) {
ai_app_validate_add (helper,
AS_PROBLEM_KIND_URL_NOT_FOUND,
"<screenshot> failed to load data [%s]",
url);
return FALSE;
}
/* load the image */
pixbuf = gdk_pixbuf_new_from_stream (stream, NULL, NULL);
if (pixbuf == NULL) {
ai_app_validate_add (helper,
AS_PROBLEM_KIND_FILE_INVALID,
"<screenshot> failed to load [%s]",
url);
return FALSE;
}
/* check width matches */
screenshot_width = (guint) gdk_pixbuf_get_width (pixbuf);
screenshot_height = (guint) gdk_pixbuf_get_height (pixbuf);
if (as_image_get_width (im) != 0 &&
as_image_get_width (im) != screenshot_width) {
ai_app_validate_add (helper,
AS_PROBLEM_KIND_ATTRIBUTE_INVALID,
"<screenshot> width did not match specified [%s]",
url);
}
/* check height matches */
if (as_image_get_height (im) != 0 &&
as_image_get_height (im) != screenshot_height) {
ai_app_validate_add (helper,
AS_PROBLEM_KIND_ATTRIBUTE_INVALID,
"<screenshot> height did not match specified [%s]",
url);
}
/* check size is reasonable */
if (screenshot_width < ss_size_width_min) {
ai_app_validate_add (helper,
AS_PROBLEM_KIND_ATTRIBUTE_INVALID,
"<screenshot> width too small [%s] minimum is %upx",
url, ss_size_width_min);
}
if (screenshot_height < ss_size_height_min) {
ai_app_validate_add (helper,
AS_PROBLEM_KIND_ATTRIBUTE_INVALID,
"<screenshot> height too small [%s] minimum is %upx",
url, ss_size_height_min);
}
if (screenshot_width > ss_size_width_max) {
ai_app_validate_add (helper,
AS_PROBLEM_KIND_ATTRIBUTE_INVALID,
"<screenshot> width too large [%s] maximum is %upx",
url, ss_size_width_max);
}
if (screenshot_height > ss_size_height_max) {
ai_app_validate_add (helper,
AS_PROBLEM_KIND_ATTRIBUTE_INVALID,
"<screenshot> height too large [%s] maximum is %upx",
url, ss_size_height_max);
}
/* check padding */
as_image_set_pixbuf (im, pixbuf);
alpha_flags = as_image_get_alpha_flags (im);
if ((alpha_flags & AS_IMAGE_ALPHA_FLAG_TOP) > 0||
(alpha_flags & AS_IMAGE_ALPHA_FLAG_BOTTOM) > 0) {
ai_app_validate_add (helper,
AS_PROBLEM_KIND_STYLE_INCORRECT,
"<image> has vertical padding [%s]",
url);
}
if ((alpha_flags & AS_IMAGE_ALPHA_FLAG_LEFT) > 0||
(alpha_flags & AS_IMAGE_ALPHA_FLAG_RIGHT) > 0) {
ai_app_validate_add (helper,
AS_PROBLEM_KIND_STYLE_INCORRECT,
"<image> has horizontal padding [%s]",
url);
}
/* check aspect ratio */
if (require_correct_aspect_ratio) {
screenshot_aspect = (gdouble) screenshot_width / (gdouble) screenshot_height;
if (ABS (screenshot_aspect - 1.777777777) > 0.1) {
g_debug ("got aspect %.2f, wanted %.2f",
screenshot_aspect, desired_aspect);
ai_app_validate_add (helper,
AS_PROBLEM_KIND_ASPECT_RATIO_INCORRECT,
"<screenshot> aspect ratio not 16:9 [%s]",
url);
}
}
return TRUE;
}
/**
* ai_app_validate_image_check:
*/
static gboolean
ai_app_validate_image_check (AsImage *im, AsAppValidateHelper *helper)
{
const gchar *url;
gboolean require_correct_aspect_ratio = FALSE;
gdouble desired_aspect = 1.777777778;
gdouble screenshot_aspect;
gint status_code;
guint screenshot_height;
guint screenshot_width;
guint ss_size_height_max = 900;
guint ss_size_height_min = 351;
guint ss_size_width_max = 1600;
guint ss_size_width_min = 624;
_cleanup_object_unref_ GdkPixbuf *pixbuf = NULL;
_cleanup_object_unref_ GInputStream *stream = NULL;
_cleanup_object_unref_ SoupMessage *msg = NULL;
_cleanup_uri_unref_ SoupURI *base_uri = NULL;
/* make the requirements more strict */
if ((helper->flags & AS_APP_VALIDATE_FLAG_STRICT) > 0) {
require_correct_aspect_ratio = TRUE;
}
/* relax the requirements a bit */
if ((helper->flags & AS_APP_VALIDATE_FLAG_RELAX) > 0) {
ss_size_height_max = 1800;
ss_size_height_min = 150;
ss_size_width_max = 3200;
ss_size_width_min = 300;
}
/* have we got network access */
if ((helper->flags & AS_APP_VALIDATE_FLAG_NO_NETWORK) > 0)
return TRUE;
/* GET file */
url = as_image_get_url (im);
g_debug ("checking %s", url);
base_uri = soup_uri_new (url);
if (base_uri == NULL) {
ai_app_validate_add (helper->probs,
AS_PROBLEM_KIND_URL_NOT_FOUND,
"<screenshot> url not valid");
return FALSE;
}
msg = soup_message_new_from_uri (SOUP_METHOD_GET, base_uri);
if (msg == NULL) {
g_warning ("Failed to setup message");
return FALSE;
}
/* send sync */
status_code = soup_session_send_message (helper->session, msg);
if (status_code != SOUP_STATUS_OK) {
ai_app_validate_add (helper->probs,
AS_PROBLEM_KIND_URL_NOT_FOUND,
"<screenshot> url not found");
return FALSE;
}
/* check if it's a zero sized file */
if (msg->response_body->length == 0) {
ai_app_validate_add (helper->probs,
AS_PROBLEM_KIND_FILE_INVALID,
"<screenshot> url is a zero length file");
return FALSE;
}
/* create a buffer with the data */
stream = g_memory_input_stream_new_from_data (msg->response_body->data,
msg->response_body->length,
NULL);
if (stream == NULL) {
ai_app_validate_add (helper->probs,
AS_PROBLEM_KIND_URL_NOT_FOUND,
"<screenshot> failed to load data");
return FALSE;
}
/* load the image */
pixbuf = gdk_pixbuf_new_from_stream (stream, NULL, NULL);
if (pixbuf == NULL) {
ai_app_validate_add (helper->probs,
AS_PROBLEM_KIND_FILE_INVALID,
"<screenshot> failed to load image");
return FALSE;
}
/* check width matches */
screenshot_width = gdk_pixbuf_get_width (pixbuf);
screenshot_height = gdk_pixbuf_get_height (pixbuf);
if (as_image_get_width (im) != 0 &&
as_image_get_width (im) != screenshot_width) {
ai_app_validate_add (helper->probs,
AS_PROBLEM_KIND_ATTRIBUTE_INVALID,
"<screenshot> width did not match specified");
}
/* check height matches */
if (as_image_get_height (im) != 0 &&
as_image_get_height (im) != screenshot_height) {
ai_app_validate_add (helper->probs,
AS_PROBLEM_KIND_ATTRIBUTE_INVALID,
"<screenshot> height did not match specified");
}
/* check size is reasonable */
if (screenshot_width < ss_size_width_min) {
ai_app_validate_add (helper->probs,
AS_PROBLEM_KIND_ATTRIBUTE_INVALID,
"<screenshot> width was too small");
}
if (screenshot_height < ss_size_height_min) {
ai_app_validate_add (helper->probs,
AS_PROBLEM_KIND_ATTRIBUTE_INVALID,
"<screenshot> height was too small");
}
if (screenshot_width > ss_size_width_max) {
ai_app_validate_add (helper->probs,
AS_PROBLEM_KIND_ATTRIBUTE_INVALID,
"<screenshot> width was too large");
}
if (screenshot_height > ss_size_height_max) {
ai_app_validate_add (helper->probs,
AS_PROBLEM_KIND_ATTRIBUTE_INVALID,
"<screenshot> height was too large");
}
/* check aspect ratio */
if (require_correct_aspect_ratio) {
screenshot_aspect = (gdouble) screenshot_width / (gdouble) screenshot_height;
if (ABS (screenshot_aspect - 1.777777777) > 0.1) {
g_debug ("got aspect %.2f, wanted %.2f",
screenshot_aspect, desired_aspect);
ai_app_validate_add (helper->probs,
AS_PROBLEM_KIND_ASPECT_RATIO_INCORRECT,
"<screenshot> aspect ratio was not 16:9");
}
}
return TRUE;
}