$blobid = @$qa_request_lc_parts[1];
$size = (int) qa_get('s');
$cachetype = 'i_' . $size;
qa_base_db_connect('qa_blob_image_db_fail_handler');
$content = qa_db_cache_get($cachetype, $blobid);
// see if we've cached the scaled down version
header('Cache-Control: max-age=2592000, public');
// allows browsers and proxies to cache images too
if (isset($content)) {
header('Content-Type: image/jpeg');
echo $content;
} else {
require_once QA_INCLUDE_DIR . 'qa-app-options.php';
require_once QA_INCLUDE_DIR . 'qa-db-blobs.php';
require_once QA_INCLUDE_DIR . 'qa-util-image.php';
$blob = qa_db_blob_read($blobid);
if (isset($blob)) {
if ($size > 0) {
$content = qa_image_constrain_data($blob['content'], $width, $height, $size);
} else {
$content = $blob['content'];
}
if (isset($content)) {
header('Content-Type: image/jpeg');
echo $content;
if (strlen($content) && $size > 0) {
$cachesizes = qa_get_options(array('avatar_profile_size', 'avatar_users_size', 'avatar_q_page_q_size', 'avatar_q_page_a_size', 'avatar_q_page_c_size', 'avatar_q_list_size'));
// to prevent cache being filled with inappropriate sizes
if (array_search($size, $cachesizes)) {
qa_db_cache_set($cachetype, $blobid, $content);
}
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.
More about this license: http://www.question2answer.org/license.php
*/
// Ensure no PHP errors are shown in the Ajax response
@ini_set('display_errors', 0);
// Load the QA base file which sets up a bunch of crucial functions
require 'qa-base.php';
// Output the blob in question
require_once QA_INCLUDE_DIR . 'qa-db-blobs.php';
$blob = qa_db_blob_read(qa_get('qa_blobid'));
header('Cache-Control: max-age=2592000, public');
// allows browsers and proxies to cache the blob
switch ($blob['format']) {
case 'jpeg':
case 'jpg':
header('Content-Type: image/jpeg');
break;
case 'gif':
header('Content-Type: image/gif');
break;
case 'png':
header('Content-Type: image/png');
break;
case 'swf':
header('Content-Type: application/x-shockwave-flash');
function qa_delete_blob($blobid)
{
if (qa_to_override(__FUNCTION__)) {
$args = func_get_args();
return qa_call_override(__FUNCTION__, $args);
}
require_once QA_INCLUDE_DIR . 'db/blobs.php';
if (defined('QA_BLOBS_DIRECTORY')) {
$blob = qa_db_blob_read($blobid);
if (isset($blob) && !isset($blob['content'])) {
unlink(qa_get_blob_filename($blobid, $blob['format']));
}
}
qa_db_blob_delete($blobid);
}
