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Add icons to the database upon feed update

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This commit is contained in:
J. King 2020-11-05 08:13:15 -05:00
parent c25782f98c
commit 7c40c81fb3
1 changed files with 62 additions and 12 deletions
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74
lib/Database.php
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@ -1091,8 +1091,23 @@ class Database {
'int'
);
}
// actually perform updates
// determine if the feed icon needs to be updated, and update it if appropriate
$tr = $this->db->begin();
$icon = null;
if ($feed->iconUrl) {
$icon = $this->iconGetByUrl($feed->iconUrl);
if ($icon) {
// update the existing icon if necessary
if ($feed->iconType !== $icon['type'] || $feed->iconData !== $icon['data']) {
$this->db->prepare("UPDATE arsse_icons set type = ?, data = ? where id = ?", "str", "blob", "int")->run($feed->iconType, $feed->iconData, $icon['id']);
}
$icon = $icon['id'];
} else {
// add the new icon to the cache
$icon = $this->db->prepare("INSERT INTO arsee_icons(url, type, data) values(?, ?, ?", "str", "str", "blob")->run($feed->iconUrl, $feed->iconType, $feed->iconData)->lastId();
}
}
// actually perform updates
foreach ($feed->newItems as $article) {
$articleID = $qInsertArticle->run(
$article->url,
@ -1142,13 +1157,14 @@ class Database {
}
// lastly update the feed database itself with updated information.
$this->db->prepare(
"UPDATE arsse_feeds SET title = ?, source = ?, updated = CURRENT_TIMESTAMP, modified = ?, etag = ?, err_count = 0, err_msg = '', next_fetch = ?, size = ? WHERE id = ?",
"UPDATE arsse_feeds SET title = ?, source = ?, updated = CURRENT_TIMESTAMP, modified = ?, etag = ?, err_count = 0, err_msg = '', next_fetch = ?, size = ?, icon = ? WHERE id = ?",
'str',
'str',
'datetime',
'strict str',
'datetime',
'int',
'int',
'int'
)->run(
$feed->data->title,
@ -1157,6 +1173,7 @@ class Database {
$feed->resource->getEtag(),
$feed->nextFetch,
sizeof($feed->data->items),
$icon,
$feedID
);
$tr->commit();
@ -1236,20 +1253,53 @@ class Database {
)->run($feedID, $vId, $vHashUT, $vHashUC, $vHashTC);
}
protected function iconList(string $user, bool $withData = true): Db\Result {
/** Retrieve a feed icon by URL, for use during feed refreshing
*
* @param string $url The URL of the icon to Retrieve
* @param bool $withData Whether to return the icon content along with the metadata
*/
protected function iconGetByUrl(string $url, bool $withData = true): array {
$data = $withData ? "data" : "null as data";
$out = $this->db->prepare("SELECT id, url, type, $data, next_fetch from arsse_icons")->run()->getRow();
if (!$out) {}
return $this->db->prepare("SELECT id, url, type, $data, next_fetch from arsse_icons where url = ?", "str")->run($id)->getRow();
}
/** Returns information about an icon for a feed to which a user is subscribed, with or without the binary content of the icon itself
*
* The returned information is:
*
* - "id": The umeric identifier of the icon (not the subscription)
* - "url": The URL of the icon
* - "type": The Content-Type of the icon e.g. "image/png"
* - "data": The icon itself, as a binary sring; if $withData is false this will be null
*
* @param string $user The user whose subscription icon is to be retrieved
* @param int $subscription The numeric identifier of the subscription with which the icon is associated
* @param bool $withData Whether to retrireve the icon content in addition to its metadata
*/
public function iconGet(string $user, int $subscrption, bool $withData = true): array {
if (!Arsse::$user->authorize($user, __FUNCTION__)) {
throw new User\ExceptionAuthz("notAuthorized", ["action" => __FUNCTION__, "user" => $user]);
}
$data = $withData ? "data" : "null as data";
$out = $this->db->prepare("SELECT i.id, i.url, i.type, $data from arsse_icons as i join arsse_feeds as f on i.id = f.icon join arsse_subscriptions as s on s.feed = f.id where s.owner = ? and s.id = ?", "str", "int")->run($user, $subscription)->getRow();
if (!$out) {
throw new Db\ExceptionInput("subjectMissing", ["action" => __FUNCTION__, "field" => "subscription", 'id' => $subscription]);
}
return $out;
}
protected function iconGet($id, bool $withData = true, bool $byUrl = false): array {
$field = $byUrl ? "url" : "id";
$type = $byUrl ? "str" : "int";
$data = $withData ? "data" : "null as data";
$out = $this->db->prepare("SELECT id, url, type, $data, next_fetch from arsse_icons where $field = ?", $type)->run($id)->getRow();
if (!$out) {}
return $out;
/** Lists icons for feeds to which a user is subscribed, with or without the binary content of the icon itself
*
* @param string $user The user whose subscription icons are to be retrieved
* @param bool $withData Whether to retrireve the icon content in addition to its metadata
*/
public function iconList(string $user, bool $withData = true): Db\Result {
if (!Arsse::$user->authorize($user, __FUNCTION__)) {
throw new User\ExceptionAuthz("notAuthorized", ["action" => __FUNCTION__, "user" => $user]);
}
$data = $withData ? "i.data" : "null as data";
return $this->db->prepare("SELECT i.id, i.url, i.type, $data from arsse_icons as i join arsse_feeds as f on i.id = f.icon join arsse_subscriptions as s on s.feed = f.id where s.owner = ?", "str")->run($user);
}
/** Returns an associative array of result column names and their SQL computations for article queries