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Arsse/lib/REST/NextCloudNews/V1_2.php
J. King 4a816f827b NCNv1 feed calls and other changes
- Implemented all but one feed-related function (it's more ofan item function)
- Fixed time conversion for input into SQL; dates in PM were previously wrong
- Added miscellaneous tentative functions to Database to help with peculiarities of NCNv1; these may change
- Tests to come soon
2017-05-18 23:03:33 -04:00

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No EOL
15 KiB
PHP

<?php
declare(strict_types=1);
namespace JKingWeb\Arsse\REST\NextCloudNews;
use JKingWeb\Arsse\Data;
use JKingWeb\Arsse\User;
use JKingWeb\Arsse\AbstractException;
use JKingWeb\Arsse\Db\ExceptionInput;
use JKingWeb\Arsse\Feed\Exception as FeedException;
use JKingWeb\Arsse\REST\Response;
class V1_2 extends \JKingWeb\Arsse\REST\AbstractHandler {
function __construct() {
}
function dispatch(\JKingWeb\Arsse\REST\Request $req): Response {
// try to authenticate
if(!Data::$user->authHTTP()) return new Response(401, "", "", ['WWW-Authenticate: Basic realm="NextCloud News API v1-2"']);
// only accept GET, POST, PUT, or DELETE
if(!in_array($req->method, ["GET", "POST", "PUT", "DELETE"])) return new Response(405, "", "", ['Allow: GET, POST, PUT, DELETE']);
// normalize the input
if($req->body) {
// if the entity body is not JSON according to content type, return "415 Unsupported Media Type"
if(!preg_match("<^application/json\b|^$>", $req->type)) return new Response(415, "", "", ['Accept: application/json']);
try {
$data = json_decode($req->body, true);
} catch(\Throwable $e) {
// if the body could not be parsed as JSON, return "400 Bad Request"
return new Response(400);
}
} else {
$data = [];
}
// FIXME: Do query parameters take precedence in NextCloud? Is there a conflict error when values differ?
$data = array_merge($data, $req->query);
// match the path
if(preg_match("<^/(items|folders|feeds|cleanup|version|status|user)(?:/([^/]+))?(?:/([^/]+))?(?:/([^/]+))?/?$>", $req->path, $url)) {
// clean up the path
$scope = $url[1];
unset($url[0]);
unset($url[1]);
$url = array_filter($url);
$url = array_values($url);
// decode any % sequences in the URL
$url = array_map(function($v){return rawurldecode($v);}, $url);
// check to make sure the requested function is implemented
$func = $scope.$req->method;
if(!method_exists($this, $func)) return new Response(501);
// dispatch
try {
Data::$db->dateFormatDefault("unix");
return $this->$func($url, $data);
} catch(Exception $e) {
// if there was a REST exception return 400
return new Response(400);
} catch(AbstractException $e) {
// if there was any other Arsse exception return 500
return new Response(500);
}
} else {
return new Response(404);
}
}
// list folders
protected function foldersGET(array $url, array $data): Response {
// if URL is more than '/folders' this is an error
if(sizeof($url)==1) return new Response(405, "", "", ['Allow: PUT, DELETE']);
if(sizeof($url) > 1) return new Response(404);
$folders = Data::$db->folderList(Data::$user->id, null, false)->getAll();
return new Response(200, ['folders' => $folders]);
}
// create a folder
protected function foldersPOST(array $url, array $data): Response {
// if URL is more than '/folders' this is an error
if(sizeof($url)==1) return new Response(405, "", "", ['Allow: PUT, DELETE']);
if(sizeof($url) > 1) return new Response(404);
try {
$folder = Data::$db->folderAdd(Data::$user->id, $data);
} catch(ExceptionInput $e) {
switch($e->getCode()) {
// folder already exists
case 10236: return new Response(409);
// folder name not acceptable
case 10231:
case 10232: return new Response(422);
// other errors related to input
default: return new Response(400);
}
}
$folder = Data::$db->folderPropertiesGet(Data::$user->id, $folder);
return new Response(200, ['folders' => [$folder]]);
}
// delete a folder
protected function foldersDELETE(array $url, array $data): Response {
// if URL is more or less than '/folders/$id' this is an error
if(sizeof($url) < 1) return new Response(405, "", "", ['Allow: GET, POST']);
if(sizeof($url) > 1) return new Response(404);
// folder ID must be integer
if(!$this->validateId($url[0])) return new Response(404);
// perform the deletion
try {
Data::$db->folderRemove(Data::$user->id, (int) $url[0]);
} catch(ExceptionInput $e) {
// folder does not exist
return new Response(404);
}
return new Response(204);
}
// rename a folder (also supports moving nesting folders, but this is not a feature of the API)
protected function foldersPUT(array $url, array $data): Response {
// if URL is more or less than '/folders/$id' this is an error
if(sizeof($url) < 1) return new Response(405, "", "", ['Allow: GET, POST']);
if(sizeof($url) > 1) return new Response(404);
// folder ID must be integer
if(!$this->validateId($url[0])) return new Response(404);
// there must be some change to be made
if(!sizeof($data)) return new Response(422);
// perform the edit
try {
Data::$db->folderPropertiesSet(Data::$user->id, (int) $url[0], $data);
} catch(ExceptionInput $e) {
switch($e->getCode()) {
// folder does not exist
case 10235: return new Response(404);
// folder already exists
case 10236: return new Response(409);
// folder name not acceptable
case 10231:
case 10232: return new Response(422);
// other errors related to input
default: return new Response(400);
}
}
return new Response(204);
}
// return the server version
protected function versionGET(array $url, array $data): Response {
// if URL is more than '/version' this is an error
if(sizeof($url)) return new Response(404);
return new Response(200, ['version' => \JKingWeb\Arsse\VERSION]);
}
// invalid function
protected function versionPOST(array $url, array $data): Response {
// if URL is more than '/version' this is an error
if(sizeof($url)) return new Response(404);
return new Response(405, "", "", ['Allow: GET']);
}
// invalid function
protected function versionPUT(array $url, array $data): Response {
// if URL is more than '/version' this is an error
if(sizeof($url)) return new Response(404);
return new Response(405, "", "", ['Allow: GET']);
}
// invalid function
protected function versionDELETE(array $url, array $data): Response {
// if URL is more than '/version' this is an error
if(sizeof($url)) return new Response(404);
return new Response(405, "", "", ['Allow: GET']);
}
protected function feedTranslate(array $feed, bool $overwrite = false): array {
// cast values
$feed = $this->mapFieldTypes($feed, [
'folder' => "int",
'pinned' => "bool",
]);
// map fields to proper names
$feed = $this->mapFieldNames($feed, [
'source' => "link",
'favicon' => "faviconLink",
'folder' => "folderId",
'unread' => "unreadCount",
'order_type' => "ordering",
'err_count' => "updateErrorCount",
'err_msg' => "lastUpdateError",
], $overwrite);
return $feed;
}
// return list of feeds for the logged-in user
// return list of feeds which should be refreshed
// refresh a feed
protected function feedsGET(array $url, array $data): Response {
// URL may be /feeds/[all|update] only
$args = sizeof($url);
if($args==2 && in_array($url[1], ["rename","move","read"])) return new Response(405, "", "", ['Allow: PUT, DELETE']);
if($args > 1) return new Response(404);
if($args==1 && !in_array($url[0], ["all","update"])) return new Response(405, "", "", ['Allow: PUT, DELETE']);
// valid action are listing owned subscriptions or (for admins) listing stale feeds or updating a feed
if($args==1) {
// listing stale feeds for updating and updating itself require admin rights per spec
if(Data::$user->rightsGet(Data::$user->id)==User::RIGHTS_NONE) return new Response(403);
if($url[0]=="all") {
// list stale feeds which should be checked for updates
$feeds = Data::$db->feedListStale();
$out = [];
foreach($feeds as $feed) {
// since in our implementation feeds don't belong the users, the 'userId' field will always be an empty string
$out[] = ['id' => $feed, 'userId' => ""];
}
return new Response(200, ['feeds' => $out]);
} elseif($url[0]=="update") {
// perform an update of a single feed
if(!array_key_exists("feedId", $data) || $data['feedId'] < 1) return new Response(422);
try {
Data::$db->feedUpdate($data['feedId']);
} catch(ExceptionInput $e) {
return new Response(404);
}
return new Response(200);
}
} else {
// list subscriptions for the logged-in user
$subs = Data::$db->subscriptionList(Data::$user->id);
$out = [];
foreach($subs as $sub) {
$sub = $this->feedTranslate($sub);
$out[] = $sub;
}
$out = ['feeds' => $out];
$out['starredCount'] = Data::$db->articleStarredCount(Data::$user->id);
$newest = Data::$db->editionLatest(Data::$user->id, ['subscription' => $id]);
if($newest) $out['newestItemId'] = $newest;
return new Response(200, $out);
}
}
// add a new feed
protected function feedsPOST(array $url, array $data): Response {
// if URL is more than '/feeds' this is an error
$args = sizeof($url);
if($args==1 && in_array($url[0], ["all","update"])) return new Response(405, "", "", ['Allow: GET']);
if($args==1) return new Response(405, "", "", ['Allow: PUT, DELETE']);
if($args==2 && in_array($url[1], ["rename","move","read"])) return new Response(405, "", "", ['Allow: PUT']);
if($args) return new Response(404);
// normalize the URL
if(!array_key_exists("url", $data)) {
$url = "";
} else {
$url = $data['url'];
}
// normalize the folder ID, if specified
if(!array_key_exists("folderId", $data)) {
$folder = null;
} else {
$folder = $data['folderId'];
$folder = $folder ? null : $folder;
}
// try to add the feed
$tr = Data::$db->begin();
try {
$id = Data::$db->subscriptionAdd(Data::$user->id, $url);
} catch(ExceptionInput $e) {
// feed already exists
return new Response(409);
} catch(FeedException $e) {
// feed could not be retrieved
return new Response(422);
}
// if a folder was specified, move the feed to the correct folder; silently ignore errors
if($folder) {
try {
Data::$db->subscriptionPropertiesSet(Data::$user->id, $id, ['folder' => $folder]);
} catch(ExceptionInput $e) {}
}
$tr->commit();
// fetch the feed's metadata and format it appropriately
$feed = Data::$db->subscriptionPropertiesGet(Data::$user->id, $id);
$feed = $this->feedTranslate($feed);
$out = ['feeds' => [$feed]];
$newest = Data::$db->editionLatest(Data::$user->id, ['subscription' => $id]);
if($newest) $out['newestItemId'] = $newest;
return new Response(200, $out);
}
// delete a feed
protected function feedsDELETE(array $url, array $data): Response {
// if URL is more or less than '/feeds/$id' this is an error
if(sizeof($url) < 1) return new Response(405, "", "", ['Allow: GET, POST']);
if(sizeof($url) > 1) return new Response(404);
// folder ID must be integer
if(!$this->validateId($url[0])) return new Response(404);
// perform the deletion
try {
Data::$db->subscriptionRemove(Data::$user->id, (int) $url[0]);
} catch(ExceptionInput $e) {
// feed does not exist
return new Response(404);
}
return new Response(204);
}
// rename a feed
// move a feed to a folder
// mark items from a feed as read
protected function feedsPUT(array $url, array $data): Response {
// URL may be /feeds/<id>/[rename|move|read]
$args = sizeof($url);
if(!$args) return new Response(405, "", "", ['Allow: GET, POST']);
if($args > 2) return new Response(404);
if(in_array($url[0], ["all", "update"])) {
if($args==1) return new Response(405, "", "", ['Allow: GET']);
return new Response(404);
}
if($args==2 && !in_array($url[1], ["rename","move","read"])) return new Response(404);
// if the feed ID is not an integer, this is also an error
if(!$this->validateId($url[0])) return new Response(404);
// normalize input for move and rename
$in = [];
if(array_key_exists("feedTitle", $data)) {
$in['title'] = $data['feedTitle'];
}
if(array_key_exists("folderId", $data)) {
$folder = $data['folderId'];
if(!$this->validateId($folder)) return new Response(422);
if(!$folder) $folder = null;
$in['folder'] = $folder;
}
// perform the move and/or rename
if($in) {
try {
Data::$db->subscriptionPropertiesSet(Data::$user->id, (int) $url[0], $in);
} catch(ExceptionInput $e) {
return new Response(404);
}
}
// mark items as read, if requested
if(array_key_exists("newestItemId", $data)) {
$newest = $data['newestItemId'];
if(!$this->validateId($newest)) return new Response(422);
// FIXME: do the marking as read
}
return new Response(204);
}
}