static function call(OkapiRequest $request)
{
require_once 'log_images_common.inc.php';
list($image_uuid, $log_internal_id) = LogImagesCommon::validate_image_uuid($request);
$image_uuid_escaped = Db::escape_string($image_uuid);
Db::execute('start transaction');
$image_row = Db::select_row("\n select id, node, url, local\n from pictures\n where uuid = '" . $image_uuid_escaped . "'\n ");
Db::execute("\n delete from pictures where uuid = '" . $image_uuid_escaped . "'\n ");
# Remember that OCPL picture sequence numbers are always 1, and
# OCDE sequence numbers may have gaps. So we do not need to adjust
# any numbers after deleting from table 'pictures'.
if (Settings::get('OC_BRANCH') == 'oc.de') {
# OCDE does all the housekeeping by triggers
} else {
Db::execute("\n INSERT INTO removed_objects (\n localID, uuid, type, removed_date, node\n )\n VALUES (\n " . $image_row['id'] . "\n '" . $image_uuid_escaped . "',\n 6,\n NOW(),\n " . $image_row['node'] . "\n )\n ");
# This will also update cache_logs.okapi_syncbase, so that replication
# can output the updated log entry with one image less. For OCDE
# that's done by DB trigges.
Db::execute("\n update cache_logs\n set\n picturescount = greatest(0, picturescount - 1),\n last_modified = NOW()\n where id = '" . Db::escape_string($log_internal_id) . "'\n ");
}
Db::execute('commit');
if ($image_row['local']) {
$filename = basename($image_row['url']);
unlink(Settings::get('IMAGES_DIR') . '/' . $filename);
}
$result = array('success' => true);
return Okapi::formatted_response($request, $result);
}
/**
* Edit an log entry image and return its (new) position.
* Throws CannotPublishException or BadRequest on errors.
*/
private static function _call(OkapiRequest $request)
{
# Developers! Please notice the fundamental difference between throwing
# CannotPublishException and the "standard" BadRequest/InvalidParam
# exceptions. CannotPublishException will be caught by the service's
# call() function and returns a message to be displayed to the user.
require_once 'log_images_common.inc.php';
# validate the 'image_uuid' parameter
list($image_uuid, $log_internal_id) = LogImagesCommon::validate_image_uuid($request);
# validate the 'caption', 'is_spoiler' and 'position' parameters
$caption = $request->get_parameter('caption');
if ($caption !== null && $caption == '') {
throw new CannotPublishException(sprintf(_("Please enter an image caption."), Okapi::get_normalized_site_name()));
}
$is_spoiler = $request->get_parameter('is_spoiler');
if ($is_spoiler !== null) {
if (!in_array($is_spoiler, array('true', 'false'))) {
throw new InvalidParam('is_spoiler');
}
}
$position = LogImagesCommon::validate_position($request);
if ($caption === null && $is_spoiler === null && $position === null) {
# If no-params were allowed, what would be the success message?
# It's more reasonable to assume that this was a developer's error.
throw new BadRequest("At least one of the parameters 'caption', 'is_spoiler' and 'position' must be supplied");
}
$image_uuid_escaped = Db::escape_string($image_uuid);
$log_entry_modified = false;
# update caption
if ($caption !== null) {
Db::execute("\n update pictures\n set title = '" . Db::escape_string($caption) . "'\n where uuid = '" . $image_uuid_escaped . "'\n ");
$log_entry_modified = true;
}
# update spoiler flag
if ($is_spoiler !== null) {
Db::execute("\n update pictures\n set spoiler = " . ($is_spoiler == 'true' ? 1 : 0) . "\n where uuid = '" . $image_uuid_escaped . "'\n ");
$log_entry_modified = true;
}
# update position
if ($position !== null) {
if (Settings::get('OC_BRANCH') == 'oc.pl') {
# OCPL as no arbitrary log picture ordering => ignore position parameter
# and return the picture's current position.
$image_uuids = Db::select_column("\n select uuid from pictures\n where object_type = 1 and object_id = '" . Db::escape_string($log_internal_id) . "'\n order by date_created\n ");
$position = array_search($image_uuid, $image_uuids);
} else {
list($position, $seq) = LogImagesCommon::prepare_position($log_internal_id, $position, 0);
# For OCDE the pictures table is write locked now.
$old_seq = DB::select_value("\n select seq from pictures where uuid = '" . $image_uuid_escaped . "'\n ");
if ($seq != $old_seq) {
# First move the edited picture to the end, to make space for rotating.
# Remember that we have no transactions at OC.de. If something goes wrong,
# the image will stay at the end of the list.
$max_seq = Db::select_value("\n select max(seq)\n from pictures\n where object_type = 1 and object_id = '" . Db::escape_string($log_internal_id) . "'\n ");
Db::query("\n update pictures\n set seq = '" . Db::escape_string($max_seq + 1) . "'\n where uuid = '" . $image_uuid_escaped . "'\n ");
# now move the pictures inbetween
if ($seq < $old_seq) {
Db::execute("\n update pictures\n set seq = seq + 1\n where\n object_type = 1\n and object_id = '" . Db::escape_string($log_internal_id) . "'\n and seq >= '" . Db::escape_string($seq) . "'\n and seq < '" . Db::escape_string($old_seq) . "'\n order by seq desc\n ");
} else {
Db::execute("\n update pictures\n set seq = seq - 1\n where\n object_type = 1\n and object_id = '" . Db::escape_string($log_internal_id) . "'\n and seq <= '" . Db::escape_string($seq) . "'\n and seq > '" . Db::escape_string($old_seq) . "'\n order by seq asc\n ");
}
# and finally move the edited picture into place
Db::query("\n update pictures\n set seq = '" . Db::escape_string($seq) . "'\n where uuid = '" . $image_uuid_escaped . "'\n ");
}
Db::execute('unlock tables');
$log_entry_modified = true;
}
}
if (Settings::get('OC_BRANCH') == 'oc.pl' && $log_entry_modified) {
# OCDE touches the log entry via trigger, OCPL needs an explicit update.
# This will also update okapi_syncbase.
Db::query("\n update cache_logs\n set last_modified = NOW()\n where id = '" . Db::escape_string($log_internal_id) . "'\n ");
# OCPL code currently does not update pictures.last_modified when
# editing, but that is a bug, see
# https://github.com/opencaching/opencaching-pl/issues/341.
}
return $position;
}
private static function db_insert_image($consumer_key, $user_id, $log_internal_id, $image_uuid, $position, $caption, $is_spoiler, $file_ext)
{
require_once 'log_images_common.inc.php';
list($position, $seq, $log_images_count) = LogImagesCommon::prepare_position($log_internal_id, $position, +1);
# For OCDE the pictures table is write locked now.
# Transactions do not work on OCDE MyISAM tables. However, the worst
# thing that can happen on OCDE is creating a sequence number gap,
# which is allowed.
#
# For OCPL InnoDB tables, the transactions DO and MUST work, because
# we write to two dependent tables.
Db::execute('start transaction');
# shift positions of existing images to make space for the new one
if ($position < $log_images_count && Settings::get('OC_BRANCH') == 'oc.de') {
Db::execute("\n update pictures\n set seq = seq + 1\n where\n object_type = 1\n and object_id = '" . Db::escape_string($log_internal_id) . "'\n and seq >= '" . Db::escape_string($seq) . "'\n order by seq desc\n ");
}
if (Settings::get('OC_BRANCH') == 'oc.de') {
$local_fields_SQL = "seq";
$local_values_escaped_SQL = "'" . Db::escape_string($seq) . "'";
# All other fields are set by trigger or defaults for OCDE.
} else {
# These are the additional fields that OCPL newpic.php supplies
# (seq is set from default):
$local_fields_SQL = "date_created, last_modified, description, desc_html, last_url_check, user_id";
$local_values_escaped_SQL = "NOW(), NOW(), '', 0, NOW(), '" . Db::escape_string($user_id) . "'";
}
Db::execute("\n insert into pictures (\n uuid, node, local, title, spoiler, url, object_type, object_id,\n unknown_format, display,\n " . $local_fields_SQL . "\n )\n values (\n '" . Db::escape_string($image_uuid) . "',\n '" . Db::escape_string(Settings::get('OC_NODE_ID')) . "',\n 1,\n '" . Db::escape_string($caption) . "',\n '" . ($is_spoiler == 'true' ? 1 : 0) . "',\n '" . Db::escape_string(Settings::get('IMAGES_URL') . $image_uuid . $file_ext) . "',\n 1,\n '" . Db::escape_string($log_internal_id) . "',\n 0,\n 1,\n " . $local_values_escaped_SQL . "\n )\n ");
$image_internal_id = Db::last_insert_id();
# update OCPL log entry properties; OCDE does everything necessary by triggers
if (Settings::get('OC_BRANCH') == 'oc.pl') {
# This will also update cache_logs.okapi_syncbase, so that replication
# can output the updated log entry with one image less. For OCDE
# that's done by DB triggers.
Db::execute("\n update cache_logs\n set\n picturescount = picturescount + 1,\n last_modified = NOW()\n where id = '" . Db::escape_string($log_internal_id) . "'\n ");
}
# Store information on the consumer_key which uploaded this image.
# (Maybe we'll want to display this somewhen later.)
Db::execute("\n insert into okapi_submitted_objects (object_type, object_id, consumer_key)\n values (\n '" . Okapi::OBJECT_TYPE_CACHE_LOG_IMAGE . "',\n '" . Db::escape_string($image_internal_id) . "',\n '" . Db::escape_string($consumer_key) . "'\n );\n ");
Db::execute('commit');
Db::execute('unlock tables');
return $position;
}
