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Function to add a feed without a subscription

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This commit is contained in:
J. King 2019-04-21 14:07:36 -04:00
parent ceecd58393
commit 2af223753d
1 changed files with 35 additions and 20 deletions
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55
lib/Database.php
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@ -706,26 +706,8 @@ class Database {
if (!Arsse::$user->authorize($user, __FUNCTION__)) {
throw new User\ExceptionAuthz("notAuthorized", ["action" => __FUNCTION__, "user" => $user]);
}
// check to see if the feed exists
$check = $this->db->prepare("SELECT id from arsse_feeds where url = ? and username = ? and password = ?", "str", "str", "str");
$feedID = $check->run($url, $fetchUser, $fetchPassword)->getValue();
if ($discover && is_null($feedID)) {
// if the feed doesn't exist, first perform discovery if requested and check for the existence of that URL
$url = Feed::discover($url, $fetchUser, $fetchPassword);
$feedID = $check->run($url, $fetchUser, $fetchPassword)->getValue();
}
if (is_null($feedID)) {
// if the feed still doesn't exist in the database, add it to the database; we do this unconditionally so as to lock SQLite databases for as little time as possible
$feedID = $this->db->prepare('INSERT INTO arsse_feeds(url,username,password) values(?,?,?)', 'str', 'str', 'str')->run($url, $fetchUser, $fetchPassword)->lastId();
try {
// perform an initial update on the newly added feed
$this->feedUpdate($feedID, true);
} catch (\Throwable $e) {
// if the update fails, delete the feed we just added
$this->db->prepare('DELETE from arsse_feeds where id = ?', 'int')->run($feedID);
throw $e;
}
}
// get the ID of the underlying feed, or add it if it's not yet in the database
$feedID = $this->feedAdd($url, $fetchUser, $fetchPassword, $discover);
// Add the feed to the user's subscriptions and return the new subscription's ID.
return $this->db->prepare('INSERT INTO arsse_subscriptions(owner,feed) values(?,?)', 'str', 'int')->run($user, $feedID)->lastId();
}
@ -983,6 +965,39 @@ class Database {
return $out;
}
/** Adds a newsfeed to the database without adding any subscriptions, and returns the numeric identifier of the added feed
*
* If the feed already exists in the database, the existing ID is returned
*
* @param string $url The URL of the newsfeed or discovery source
* @param string $fetchUser The user name required to access the newsfeed, if applicable
* @param string $fetchPassword The password required to fetch the newsfeed, if applicable; this will be stored in cleartext
* @param boolean $discover Whether to perform newsfeed discovery if $url points to an HTML document
*/
public function feedAdd(string $url, string $fetchUser = "", string $fetchPassword = "", bool $discover = true): int {
// check to see if the feed already exists
$check = $this->db->prepare("SELECT id from arsse_feeds where url = ? and username = ? and password = ?", "str", "str", "str");
$feedID = $check->run($url, $fetchUser, $fetchPassword)->getValue();
if ($discover && is_null($feedID)) {
// if the feed doesn't exist, first perform discovery if requested and check for the existence of that URL
$url = Feed::discover($url, $fetchUser, $fetchPassword);
$feedID = $check->run($url, $fetchUser, $fetchPassword)->getValue();
}
if (is_null($feedID)) {
// if the feed still doesn't exist in the database, add it to the database; we do this unconditionally so as to lock SQLite databases for as little time as possible
$feedID = $this->db->prepare('INSERT INTO arsse_feeds(url,username,password) values(?,?,?)', 'str', 'str', 'str')->run($url, $fetchUser, $fetchPassword)->lastId();
try {
// perform an initial update on the newly added feed
$this->feedUpdate($feedID, true);
} catch (\Throwable $e) {
// if the update fails, delete the feed we just added
$this->db->prepare('DELETE from arsse_feeds where id = ?', 'int')->run($feedID);
throw $e;
}
}
return (int) $feedID;
}
/** Returns an indexed array of numeric identifiers for newsfeeds which should be refreshed */
public function feedListStale(): array {
$feeds = $this->db->query("SELECT id from arsse_feeds where next_fetch <= CURRENT_TIMESTAMP")->getAll();