The clean & modern RSS server that doesn't give you any crap. https://thearsse.com/
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<?php
/** @license MIT
* Copyright 2017 J. King, Dustin Wilson et al.
* See LICENSE and AUTHORS files for details */
declare(strict_types=1);
namespace JKingWeb\Arsse\REST\TinyTinyRSS;
use JKingWeb\Arsse\Feed;
use JKingWeb\Arsse\Arsse;
use JKingWeb\Arsse\Database;
use JKingWeb\Arsse\User;
use JKingWeb\Arsse\Service;
use JKingWeb\Arsse\Misc\Date;
use JKingWeb\Arsse\Misc\Context;
use JKingWeb\Arsse\Misc\ValueInfo;
use JKingWeb\Arsse\AbstractException;
use JKingWeb\Arsse\ExceptionType;
use JKingWeb\Arsse\Db\ExceptionInput;
use JKingWeb\Arsse\Db\ResultEmpty;
use JKingWeb\Arsse\Feed\Exception as FeedException;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Message\ResponseInterface;
use Zend\Diactoros\Response\JsonResponse as Response;
use Zend\Diactoros\Response\EmptyResponse;
class API extends \JKingWeb\Arsse\REST\AbstractHandler {
const LEVEL = 14; // emulated API level
const VERSION = "17.4"; // emulated TT-RSS version
const LABEL_OFFSET = 1024; // offset below zero at which labels begin, counting down
const LIMIT_ARTICLES = 200; // maximum number of articles returned by getHeadlines
const LIMIT_EXCERPT = 100; // maximum length of excerpts in getHeadlines, counted in grapheme units
// special feeds
const FEED_ARCHIVED = 0;
const FEED_STARRED = -1;
const FEED_PUBLISHED = -2;
const FEED_FRESH = -3;
const FEED_ALL = -4;
const FEED_READ = -6;
// special categories
const CAT_UNCATEGORIZED = 0;
const CAT_SPECIAL = -1;
const CAT_LABELS = -2;
const CAT_NOT_SPECIAL = -3;
const CAT_ALL = -4;
// valid input
const VALID_INPUT = [
'op' => ValueInfo::T_STRING, // the function ("operation") to perform
'sid' => ValueInfo::T_STRING, // session ID
'seq' => ValueInfo::T_INT, // request number from client
'user' => ValueInfo::T_STRING | ValueInfo::M_STRICT, // user name for `login`
'password' => ValueInfo::T_STRING | ValueInfo::M_STRICT, // password for `login` and `subscribeToFeed`
'include_empty' => ValueInfo::T_BOOL | ValueInfo::M_DROP, // whether to include empty items in `getFeedTree` and `getCategories`
'unread_only' => ValueInfo::T_BOOL | ValueInfo::M_DROP, // whether to exclude items without unread articles in `getCategories` and `getFeeds`
'enable_nested' => ValueInfo::T_BOOL | ValueInfo::M_DROP, // whether to NOT show subcategories in `getCategories
'include_nested' => ValueInfo::T_BOOL | ValueInfo::M_DROP, // whether to include subcategories in `getFeeds` and the articles thereof in `getHeadlines`
'caption' => ValueInfo::T_STRING | ValueInfo::M_STRICT, // name for categories, feed, and labels
'parent_id' => ValueInfo::T_INT, // parent category for `addCategory` and `moveCategory`
'category_id' => ValueInfo::T_INT, // parent category for `subscribeToFeed` and `moveFeed`, and subject for category-modification functions
'cat_id' => ValueInfo::T_INT, // parent category for `getFeeds`
'label_id' => ValueInfo::T_INT, // label ID in label-related functions
'feed_url' => ValueInfo::T_STRING | ValueInfo::M_STRICT, // URL of feed in `subscribeToFeed`
'login' => ValueInfo::T_STRING | ValueInfo::M_STRICT, // remote user name in `subscribeToFeed`
'feed_id' => ValueInfo::T_INT, // feed, label, or category ID for various functions
'is_cat' => ValueInfo::T_BOOL | ValueInfo::M_DROP, // whether 'feed_id' refers to a category
'article_id' => ValueInfo::T_MIXED, // single article ID in `getLabels`; one or more (comma-separated) article IDs in `getArticle`
'article_ids' => ValueInfo::T_STRING, // one or more (comma-separated) article IDs in `updateArticle` and `setArticleLabel`
'assign' => ValueInfo::T_BOOL | ValueInfo::M_DROP, // whether to assign or clear (false) a label in `setArticleLabel`
'limit' => ValueInfo::T_INT, // maximum number of records returned in `getFeeds`, `getHeadlines`, and `getCompactHeadlines`
'offset' => ValueInfo::T_INT, // number of records to skip in `getFeeds`, for pagination
'skip' => ValueInfo::T_INT, // number of records to skip in `getHeadlines` and `getCompactHeadlines`, for pagination
'show_excerpt' => ValueInfo::T_BOOL | ValueInfo::M_DROP, // whether to include article excerpts in `getHeadlines`
'show_content' => ValueInfo::T_BOOL | ValueInfo::M_DROP, // whether to include article content in `getHeadlines`
'include_attachments' => ValueInfo::T_BOOL | ValueInfo::M_DROP, // whether to include article enclosures in `getHeadlines`
'view_mode' => ValueInfo::T_STRING, // various filters for `getHeadlines`
'since_id' => ValueInfo::T_INT, // cut-off article ID for `getHeadlines` and `getCompactHeadlines; returns only higher article IDs when specified
'order_by' => ValueInfo::T_STRING, // sort order for `getHeadlines`
'include_header' => ValueInfo::T_BOOL | ValueInfo::M_DROP, // whether to attach a header to the results of `getHeadlines`
'search' => ValueInfo::T_STRING, // search string for `getHeadlines` (not yet implemented)
'field' => ValueInfo::T_INT, // which state to change in `updateArticle`
'mode' => ValueInfo::T_INT, // whether to set, clear, or toggle the selected state in `updateArticle`
'data' => ValueInfo::T_STRING, // note text in `updateArticle` if setting a note
];
// generic error construct
const FATAL_ERR = [
'seq' => null,
'status' => 1,
'content' => ['error' => "MALFORMED_INPUT"],
];
public function __construct() {
}
public function dispatch(ServerRequestInterface $req): ResponseInterface {
if (!preg_match("<^(?:/(?:index\.php)?)?$>", $req->getRequestTarget())) {
// reject paths other than the index
return new EmptyResponse(404);
}
if ($req->getMethod()=="OPTIONS") {
// respond to OPTIONS rquests; the response is a fib, as we technically accept any type or method
return new EmptyResponse(204, [
'Allow' => "POST",
'Accept' => "application/json, text/json",
]);
}
$data = (string) $req->getBody();
if ($data) {
// only JSON entities are allowed, but Content-Type is ignored, as is request method
$data = @json_decode($data, true);
if (json_last_error() != \JSON_ERROR_NONE || !is_array($data)) {
return new Response(self::FATAL_ERR);
}
try {
// normalize input
try {
$data['seq'] = isset($data['seq']) ? $data['seq'] : 0;
$data = $this->normalizeInput($data, self::VALID_INPUT, "unix");
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} catch (ExceptionType $e) {
throw new Exception("INCORRECT_USAGE");
}
if ($req->getAttribute("authenticated", false)) {
// if HTTP authentication was successfully used, set the expected user ID
Arsse::$user->id = $req->getAttribute("authenticatedUser");
} elseif (Arsse::$conf->userHTTPAuthRequired || Arsse::$conf->userPreAuth || $req->getAttribute("authenticationFailed", false)) {
// otherwise if HTTP authentication failed or is required, deny access at the HTTP level
return new EmptyResponse(401);
}
if (strtolower((string) $data['op']) != "login") {
// unless logging in, a session identifier is required
$this->resumeSession((string) $data['sid']);
}
$method = "op".ucfirst($data['op']);
if (!method_exists($this, $method)) {
// TT-RSS operations are case-insensitive by dint of PHP method names being case-insensitive; this will only trigger if the method really doesn't exist
throw new Exception("UNKNOWN_METHOD", ['method' => $data['op']]);
}
return new Response([
'seq' => $data['seq'],
'status' => 0,
'content' => $this->$method($data),
]);
} catch (Exception $e) {
return new Response([
'seq' => $data['seq'],
'status' => 1,
'content' => $e->getData(),
]);
} catch (AbstractException $e) {
return new EmptyResponse(500);
}
} else {
// absence of a request body indicates an error
return new Response(self::FATAL_ERR);
}
}
protected function resumeSession(string $id): bool {
// if HTTP authentication was successful and sessions are not enforced, proceed unconditionally
if (isset(Arsse::$user->id) && !Arsse::$conf->userSessionEnforced) {
return true;
}
try {
// verify the supplied session is valid
$s = Arsse::$db->sessionResume($id);
} catch (\JKingWeb\Arsse\User\ExceptionSession $e) {
// if not throw an exception
throw new Exception("NOT_LOGGED_IN");
}
// resume the session (currently only the user name)
Arsse::$user->id = $s['user'];
return true;
}
public function opGetApiLevel(array $data): array {
return ['level' => self::LEVEL];
}
public function opGetVersion(array $data): array {
return [
'version' => self::VERSION,
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'arsse_version' => Arsse::VERSION,
];
}
public function opLogin(array $data): array {
$user = $data['user'] ?? "";
$pass = $data['password'] ?? "";
if (!Arsse::$conf->userSessionEnforced && isset(Arsse::$user->id)) {
// if HTTP authentication was previously successful and sessions
// are not enforced, create a session for the HTTP user regardless
// of which user the API call mentions
$id = Arsse::$db->sessionCreate(Arsse::$user->id);
} elseif ((!Arsse::$conf->userPreAuth && (Arsse::$user->auth($user, $pass) || Arsse::$user->auth($user, base64_decode($pass)))) || (Arsse::$conf->userPreAuth && Arsse::$user->id===$user)) {
// otherwise both cleartext and base64 passwords are accepted
// if pre-authentication is in use, just make sure the user names match
$id = Arsse::$db->sessionCreate($user);
} else {
throw new Exception("LOGIN_ERROR");
}
return [
'session_id' => $id,
'api_level' => self::LEVEL
];
}
public function opLogout(array $data): array {
Arsse::$db->sessionDestroy(Arsse::$user->id, $data['sid']);
return ['status' => "OK"];
}
public function opIsLoggedIn(array $data): array {
// session validity is already checked by the dispatcher, so we need only return true
return ['status' => true];
}
public function opGetConfig(array $data): array {
return [
'icons_dir' => "feed-icons",
'icons_url' => "feed-icons",
'daemon_is_running' => Service::hasCheckedIn(),
'num_feeds' => Arsse::$db->subscriptionCount(Arsse::$user->id),
];
}
public function opGetUnread(array $data): array {
// simply sum the unread count of each subscription
$out = 0;
foreach (Arsse::$db->subscriptionList(Arsse::$user->id) as $sub) {
$out += $sub['unread'];
}
return ['unread' => (string) $out]; // string cast to be consistent with TTRSS
}
public function opGetCounters(array $data): array {
$user = Arsse::$user->id;
$starred = Arsse::$db->articleStarred($user);
$fresh = Arsse::$db->articleCount($user, (new Context)->unread(true)->modifiedSince(Date::sub("PT24H")));
$countAll = 0;
$countSubs = 0;
$feeds = [];
$labels = [];
// do a first pass on categories: add the ID to a lookup table and set the unread counter to zero
$categories = Arsse::$db->folderList($user)->getAll();
$catmap = [];
for ($a = 0; $a < sizeof($categories); $a++) {
$catmap[(int) $categories[$a]['id']] = $a;
$categories[$a]['counter'] = 0;
}
// add the "Uncategorized" and "Labels" virtual categories to the list
$catmap[self::CAT_UNCATEGORIZED] = sizeof($categories);
$categories[] = ['id' => self::CAT_UNCATEGORIZED, 'name' => Arsse::$lang->msg("API.TTRSS.Category.Uncategorized"), 'parent' => 0, 'children' => 0, 'counter' => 0];
$catmap[self::CAT_LABELS] = sizeof($categories);
$categories[] = ['id' => self::CAT_LABELS, 'name' => Arsse::$lang->msg("API.TTRSS.Category.Labels"), 'parent' => 0, 'children' => 0, 'counter' => 0];
// prepare data for each subscription; we also add unread counts for their host categories
foreach (Arsse::$db->subscriptionList($user) as $f) {
// add the feed to the list of feeds
$feeds[] = ['id' => (string) $f['id'], 'updated' => Date::transform($f['updated'], "iso8601", "sql"),'counter' => (int) $f['unread'], 'has_img' => (int) (strlen((string) $f['favicon']) > 0)]; // ID is cast to string for consistency with TTRSS
// add the feed's unread count to the global unread count
$countAll += $f['unread'];
// add the feed's unread count to its category unread count
$categories[$catmap[(int) $f['folder']]]['counter'] += $f['unread'];
// increment the global feed count
$countSubs += 1;
}
// prepare data for each non-empty label
foreach (Arsse::$db->labelList($user, false) as $l) {
$unread = $l['articles'] - $l['read'];
$labels[] = ['id' => $this->labelOut($l['id']), 'counter' => $unread, 'auxcounter' => (int) $l['articles']];
$categories[$catmap[self::CAT_LABELS]]['counter'] += $unread;
}
// do a second pass on categories, summing descendant unread counts for ancestors
$cats = $categories;
$catCounts = [];
while ($cats) {
foreach ($cats as $c) {
if ($c['children']) {
// only act on leaf nodes
continue;
}
if ($c['parent']) {
// if the category has a parent, add its counter to the parent's counter, and decrement the parent's child count
$cats[$catmap[$c['parent']]]['counter'] += $c['counter'];
$cats[$catmap[$c['parent']]]['children'] -= 1;
}
$catCounts[$c['id']] = $c['counter'];
// remove the category from the input list
unset($cats[$catmap[$c['id']]]);
}
}
// do a third pass on categories, building a final category list; this is done so that the original sort order is retained
foreach ($categories as $c) {
$cats[] = ['id' => (int) $c['id'], 'kind' => "cat", 'counter' => $catCounts[$c['id']]];
}
// prepare data for the virtual feeds and other counters
$special = [
['id' => "global-unread", 'counter' => $countAll], //this should not count archived articles, but we do not have an archive
['id' => "subscribed-feeds", 'counter' => $countSubs],
['id' => self::FEED_ARCHIVED, 'counter' => 0, 'auxcounter' => 0], // Archived articles
['id' => self::FEED_STARRED, 'counter' => (int) $starred['unread'], 'auxcounter' => (int) $starred['total']], // Starred articles
['id' => self::FEED_PUBLISHED, 'counter' => 0, 'auxcounter' => 0], // Published articles
['id' => self::FEED_FRESH, 'counter' => $fresh, 'auxcounter' => 0], // Fresh articles
['id' => self::FEED_ALL, 'counter' => $countAll, 'auxcounter' => 0], // All articles
];
return array_merge($special, $labels, $feeds, $cats);
}
public function opGetFeedTree(array $data) : array {
$all = $data['include_empty'] ?? false;
$user = Arsse::$user->id;
$tSpecial = [
'type' => "feed",
'auxcounter' => 0,
'error' => "",
'updated' => "",
];
$out = [];
// get the lists of categories and feeds
$cats = Arsse::$db->folderList($user, null, true)->getAll();
$subs = Arsse::$db->subscriptionList($user)->getAll();
// start with the special feeds
$out[] = [
'name' => Arsse::$lang->msg("API.TTRSS.Category.Special"),
'id' => "CAT:".self::CAT_SPECIAL,
'bare_id' => self::CAT_SPECIAL,
'type' => "category",
'unread' => 0,
'items' => [
array_merge([ // All articles
'name' => Arsse::$lang->msg("API.TTRSS.Feed.All"),
'id' => "FEED:".self::FEED_ALL,
'bare_id' => self::FEED_ALL,
'icon' => "images/folder.png",
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'unread' => array_reduce($subs, function($sum, $value) {
return $sum + $value['unread'];
}, 0), // the sum of all feeds' unread is the total unread
], $tSpecial),
array_merge([ // Fresh articles
'name' => Arsse::$lang->msg("API.TTRSS.Feed.Fresh"),
'id' => "FEED:".self::FEED_FRESH,
'bare_id' => self::FEED_FRESH,
'icon' => "images/fresh.png",
'unread' => Arsse::$db->articleCount($user, (new Context)->unread(true)->modifiedSince(Date::sub("PT24H"))),
], $tSpecial),
array_merge([ // Starred articles
'name' => Arsse::$lang->msg("API.TTRSS.Feed.Starred"),
'id' => "FEED:".self::FEED_STARRED,
'bare_id' => self::FEED_STARRED,
'icon' => "images/star.png",
'unread' => (int) Arsse::$db->articleStarred($user)['unread'],
], $tSpecial),
array_merge([ // Published articles
'name' => Arsse::$lang->msg("API.TTRSS.Feed.Published"),
'id' => "FEED:".self::FEED_PUBLISHED,
'bare_id' => self::FEED_PUBLISHED,
'icon' => "images/feed.png",
'unread' => 0, // TODO: unread count should be populated if the Published feed is ever implemented
], $tSpecial),
array_merge([ // Archived articles
'name' => Arsse::$lang->msg("API.TTRSS.Feed.Archived"),
'id' => "FEED:".self::FEED_ARCHIVED,
'bare_id' => self::FEED_ARCHIVED,
'icon' => "images/archive.png",
'unread' => 0, // Article archiving is not exposed by the API, so this is always zero
], $tSpecial),
array_merge([ // Recently read
'name' => Arsse::$lang->msg("API.TTRSS.Feed.Read"),
'id' => "FEED:".self::FEED_READ,
'bare_id' => self::FEED_READ,
'icon' => "images/time.png",
'unread' => 0, // this is by definition zero; unread articles do not appear in this feed
], $tSpecial),
],
];
// next prepare labels
$items = [];
$unread = 0;
// add each label to a holding list (NOTE: the 'include_empty' parameter does not affect whether labels with zero total articles are shown: all labels are always shown)
foreach (Arsse::$db->labelList($user, true) as $l) {
$items[] = [
'name' => $l['name'],
'id' => "FEED:".$this->labelOut($l['id']),
'bare_id' => $this->labelOut($l['id']),
'unread' => 0,
'icon' => "images/label.png",
'type' => "feed",
'auxcounter' => 0,
'error' => "",
'updated' => "",
'fg_color' => "",
'bg_color' => "",
];
$unread += ($l['articles'] - $l['read']);
}
// if there are labels, all the label category,
if ($items) {
$out[] = [
'name' => Arsse::$lang->msg("API.TTRSS.Category.Labels"),
'id' => "CAT:".self::CAT_LABELS,
'bare_id' => self::CAT_LABELS,
'type' => "category",
'unread' => $unread,
'items' => $items,
];
}
// get the lists of categories and feeds
$cats = Arsse::$db->folderList($user, null, true)->getAll();
$subs = Arsse::$db->subscriptionList($user)->getAll();
// process all the top-level categories; their contents are gathered recursively in another function
$items = $this->enumerateCategories($cats, $subs, null, $all);
$out = array_merge($out, $items['list']);
// process uncategorized feeds; exclude the "Uncategorized" category if there are no orphan feeds and we're not displaying empties
$items = $this->enumerateFeeds($subs, null);
if ($items || !$all) {
$out[] = [
'name' => Arsse::$lang->msg("API.TTRSS.Category.Uncategorized"),
'id' => "CAT:".self::CAT_UNCATEGORIZED,
'bare_id' => self::CAT_UNCATEGORIZED,
'type' => "category",
'auxcounter' => 0,
'unread' => 0,
'child_unread' => 0,
'checkbox' => false,
'parent_id' => null,
'param' => Arsse::$lang->msg("API.TTRSS.FeedCount", sizeof($items)),
'items' => $items,
];
}
// return the result wrapped in some boilerplate
return ['categories' => ['identifier' => "id", 'label' => "name", 'items' => $out]];
}
protected function enumerateFeeds(array $subs, $parent = null): array {
$out = [];
foreach ($subs as $s) {
if ($s['folder'] != $parent) {
continue;
}
$out[] = [
'name' => $s['title'],
'id' => "FEED:".$s['id'],
'bare_id' => (int) $s['id'],
'icon' => $s['favicon'] ? "feed-icons/".$s['id'].".ico" : false,
'error' => (string) $s['err_msg'],
'param' => Date::transform($s['updated'], "iso8601", "sql"),
'unread' => 0,
'auxcounter' => 0,
'checkbox' => false,
// NOTE: feeds don't have a type property (even though both labels and special feeds do); don't ask me why
];
}
return $out;
}
protected function enumerateCategories(array $cats, array $subs, $parent = null, bool $all = false): array {
$out = [];
$feedTotal = 0;
foreach ($cats as $c) {
if ($c['parent'] != $parent || (!$all && !($c['children'] + $c['feeds']))) {
// if the category is the wrong level, or if it's empty and we're not including empties, skip it
continue;
}
$children = $c['children'] ? $this->enumerateCategories($cats, $subs, $c['id'], $all) : ['list' => [], 'feeds' => 0];
$feeds = $c['feeds'] ? $this->enumerateFeeds($subs, $c['id']) : [];
$count = sizeof($feeds) + $children['feeds'];
$out[] = [
'name' => $c['name'],
'id' => "CAT:".$c['id'],
'bare_id' => (int) $c['id'],
'parent_id' => (int) $c['parent'] ?: null, // top-level categories are not supposed to have this property; we deviated and have the property set to null because it's simpler that way
'type' => "category",
'auxcounter' => 0,
'unread' => 0,
'child_unread' => 0,
'checkbox' => false,
'param' => Arsse::$lang->msg("API.TTRSS.FeedCount", $count),
'items' => array_merge($children['list'], $feeds),
];
$feedTotal += $count;
}
return ['list' => $out, 'feeds' => $feedTotal];
}
public function opGetCategories(array $data): array {
// normalize input
$all = $data['include_empty'] ?? false;
$read = !($data['unread_only'] ?? false);
$deep = !($data['enable_nested'] ?? false);
$user = Arsse::$user->id;
// for each category, add the ID to a lookup table, set the number of unread to zero, and assign an increasing order index
$cats = Arsse::$db->folderList($user, null, $deep)->getAll();
$map = [];
for ($a = 0; $a < sizeof($cats); $a++) {
$cats[$a]['id'] = (string) $cats[$a]['id']; // real categories have IDs as strings in TTRSS
$map[$cats[$a]['id']] = $a;
$cats[$a]['unread'] = 0;
$cats[$a]['order'] = $a + 1;
}
// add the "Uncategorized", "Special", and "Labels" virtual categories to the list
$map[self::CAT_UNCATEGORIZED] = sizeof($cats);
$cats[] = ['id' => self::CAT_UNCATEGORIZED, 'name' => Arsse::$lang->msg("API.TTRSS.Category.Uncategorized"), 'children' => 0, 'unread' => 0, 'feeds' => 0];
$map[self::CAT_SPECIAL] = sizeof($cats);
$cats[] = ['id' => self::CAT_SPECIAL, 'name' => Arsse::$lang->msg("API.TTRSS.Category.Special"), 'children' => 0, 'unread' => 0, 'feeds' => 6];
$map[self::CAT_LABELS] = sizeof($cats);
$cats[] = ['id' => self::CAT_LABELS, 'name' => Arsse::$lang->msg("API.TTRSS.Category.Labels"), 'children' => 0, 'unread' => 0, 'feeds' => 0];
// for each subscription, add the unread count to its category, and increment the category's feed count
$subs = Arsse::$db->subscriptionList($user);
foreach ($subs as $sub) {
// note we use top_folder if we're in "nested" mode
$f = $map[(int) ($deep ? $sub['folder'] : $sub['top_folder'])];
$cats[$f]['unread'] += $sub['unread'];
if (!$cats[$f]['id']) {
$cats[$f]['feeds'] += 1;
}
}
// for each label, add the unread count to the labels category, and increment the labels category's feed count
$labels = Arsse::$db->labelList($user);
$f = $map[self::CAT_LABELS];
foreach ($labels as $label) {
$cats[$f]['unread'] += $label['articles'] - $label['read'];
$cats[$f]['feeds'] += 1;
}
// get the unread counts for the special feeds
// FIXME: this is pretty inefficient
$f = $map[self::CAT_SPECIAL];
$cats[$f]['unread'] += Arsse::$db->articleStarred($user)['unread']; // starred
$cats[$f]['unread'] += Arsse::$db->articleCount($user, (new Context)->unread(true)->modifiedSince(Date::sub("PT24H"))); // fresh
if (!$read) {
// if we're only including unread entries, remove any categories with zero unread items (this will by definition also exclude empties)
$count = sizeof($cats);
for ($a = 0; $a < $count; $a++) {
if (!$cats[$a]['unread']) {
unset($cats[$a]);
}
}
$cats = array_values($cats);
} elseif (!$all) {
// otherwise if we're not including empty entries, remove categories with no children and no feeds
$count = sizeof($cats);
for ($a = 0; $a < $count; $a++) {
if (($cats[$a]['children'] + $cats[$a]['feeds']) < 1) {
unset($cats[$a]);
}
}
$cats = array_values($cats);
}
// transform the result and return
$out = [];
for ($a = 0; $a < sizeof($cats); $a++) {
if ($cats[$a]['id']==-2) {
// the Labels category has its unread count as a string in TTRSS (don't ask me why)
settype($cats[$a]['unread'], "string");
}
$out[] = $this->fieldMapNames($cats[$a], [
'id' => "id",
'title' => "name",
'unread' => "unread",
'order_id' => "order",
]);
}
return $out;
}
public function opAddCategory(array $data) {
$in = [
'name' => $data['caption'],
'parent' => $data['parent_id'],
];
try {
return (string) Arsse::$db->folderAdd(Arsse::$user->id, $in); // output is a string in TTRSS
} catch (ExceptionInput $e) {
switch ($e->getCode()) {
case 10236: // folder already exists
// retrieve the ID of the existing folder; duplicating a folder silently returns the existing one
$folders = Arsse::$db->folderList(Arsse::$user->id, $in['parent'], false);
foreach ($folders as $folder) {
if ($folder['name']==$in['name']) {
return (string) ((int) $folder['id']); // output is a string in TTRSS
}
}
return false; // @codeCoverageIgnore
case 10235: // parent folder does not exist; this returns false as an ID
return false;
default: // other errors related to input
throw new Exception("INCORRECT_USAGE");
}
}
}
public function opRemoveCategory(array $data) {
if (!ValueInfo::id($data['category_id'])) {
// if the folder is invalid, throw an error
throw new Exception("INCORRECT_USAGE");
}
try {
// attempt to remove the folder
Arsse::$db->folderRemove(Arsse::$user->id, (int) $data['category_id']);
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} catch (ExceptionInput $e) {
// ignore all errors
}
return null;
}
public function opMoveCategory(array $data) {
if (!ValueInfo::id($data['category_id']) || !ValueInfo::id($data['parent_id'], true)) {
// if the folder or parent is invalid, throw an error
throw new Exception("INCORRECT_USAGE");
}
$in = [
'parent' => (int) $data['parent_id'],
];
try {
// try to move the folder
Arsse::$db->folderPropertiesSet(Arsse::$user->id, (int) $data['category_id'], $in);
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} catch (ExceptionInput $e) {
// ignore all errors
}
return null;
}
public function opRenameCategory(array $data) {
$info = ValueInfo::str($data['caption']);
if (!ValueInfo::id($data['category_id']) || !($info & ValueInfo::VALID) || ($info & ValueInfo::EMPTY) || ($info & ValueInfo::WHITE)) {
// if the folder or its new name are invalid, throw an error
throw new Exception("INCORRECT_USAGE");
}
$in = [
'name' => $data['caption'],
];
try {
// try to rename the folder
Arsse::$db->folderPropertiesSet(Arsse::$user->id, $data['category_id'], $in);
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} catch (ExceptionInput $e) {
// ignore all errors
}
return null;
}
public function opGetFeeds(array $data): array {
$user = Arsse::$user->id;
// normalize input
$cat = $data['cat_id'] ?? 0;
$unread = $data['unread_only'] ?? false;
$limit = $data['limit'] ?? 0;
$offset = $data['offset'] ?? 0;
$nested = $data['include_nested'] ?? false;
// if a special category was selected, nesting does not apply
if (!ValueInfo::id($cat)) {
$nested = false;
// if the All, Special, or Labels category was selected, pagination also does not apply
if (in_array($cat, [self::CAT_ALL, self::CAT_SPECIAL, self::CAT_LABELS])) {
$limit = 0;
$offset = 0;
}
}
// retrieve or build the list of relevant feeds
$out = [];
$subs = [];
$count = 0;
// if the category is the special Labels category or the special All category (which includes labels), add labels to the list
if ($cat==self::CAT_ALL || $cat==self::CAT_LABELS) {
// NOTE: unused labels are not included
foreach (Arsse::$db->labelList($user, false) as $l) {
if ($unread && !$l['unread']) {
continue;
}
$out[] = [
'id' => $this->labelOut($l['id']),
'title' => $l['name'],
'unread' => (string) $l['unread'], // the unread count of labels is output as a string in TTRSS
'cat_id' => self::CAT_LABELS,
];
}
}
// if the category is the special Special (!) category or the special All category (which includes "special" feeds), add those feeds to the list
if ($cat==self::CAT_ALL || $cat==self::CAT_SPECIAL) {
// gather some statistics
$starred = Arsse::$db->articleStarred($user)['unread'];
$fresh = Arsse::$db->articleCount($user, (new Context)->unread(true)->modifiedSince(Date::sub("PT24H")));
$global = Arsse::$db->articleCount($user, (new Context)->unread(true));
$published = 0; // TODO: if the Published feed is implemented, the getFeeds method needs to be adjusted accordingly
$archived = 0; // the archived feed is non-functional in the TT-RSS protocol itself
// build the list; exclude anything with zero unread if requested
if (!$unread || $starred) {
$out[] = [
'id' => self::FEED_STARRED,
'title' => Arsse::$lang->msg("API.TTRSS.Feed.Starred"),
'unread' => (string) $starred, // output is a string in TTRSS
'cat_id' => self::CAT_SPECIAL,
];
}
if (!$unread || $published) {
$out[] = [
'id' => self::FEED_PUBLISHED,
'title' => Arsse::$lang->msg("API.TTRSS.Feed.Published"),
'unread' => (string) $published, // output is a string in TTRSS
'cat_id' => self::CAT_SPECIAL,
];
}
if (!$unread || $fresh) {
$out[] = [
'id' => self::FEED_FRESH,
'title' => Arsse::$lang->msg("API.TTRSS.Feed.Fresh"),
'unread' => (string) $fresh, // output is a string in TTRSS
'cat_id' => self::CAT_SPECIAL,
];
}
if (!$unread || $global) {
$out[] = [
'id' => self::FEED_ALL,
'title' => Arsse::$lang->msg("API.TTRSS.Feed.All"),
'unread' => (string) $global, // output is a string in TTRSS
'cat_id' => self::CAT_SPECIAL,
];
}
if (!$unread) {
$out[] = [
'id' => self::FEED_READ,
'title' => Arsse::$lang->msg("API.TTRSS.Feed.Read"),
'unread' => 0, // zero by definition; this one is -NOT- a string in TTRSS
'cat_id' => self::CAT_SPECIAL,
];
}
if (!$unread || $archived) {
$out[] = [
'id' => self::FEED_ARCHIVED,
'title' => Arsse::$lang->msg("API.TTRSS.Feed.Archived"),
'unread' => (string) $archived, // output is a string in TTRSS
'cat_id' => self::CAT_SPECIAL,
];
}
}
// categories and real feeds have a sequential order index; we don't store this, so we just increment with each entry from here
$order = 0;
// if a "nested" list was requested, append the category's child categories to the putput
if ($nested) {
try {
// NOTE: the list is a flat one: it includes children, but not other descendents
foreach (Arsse::$db->folderList($user, $cat, false) as $c) {
// get the number of unread for the category and its descendents; those with zero unread are excluded in "unread-only" mode
$count = Arsse::$db->articleCount($user, (new Context)->unread(true)->folder((int) $c['id']));
if (!$unread || $count) {
$out[] = [
'id' => (int) $c['id'],
'title' => $c['name'],
'unread' => (int) $count,
'is_cat' => true,
'order_id' => ++$order,
];
}
}
} catch (ExceptionInput $e) {
// in case of errors (because the category does not exist) return the list so far (which should be empty)
return $out;
}
}
try {
if ($cat==self::CAT_NOT_SPECIAL || $cat==self::CAT_ALL) {
// if the "All" or "Not Special" categories were selected this returns all subscription, to any depth
$subs = Arsse::$db->subscriptionList($user, null, true);
} elseif ($cat==self::CAT_UNCATEGORIZED) {
// the "Uncategorized" special category returns subscriptions in the root, without going deeper
$subs = Arsse::$db->subscriptionList($user, null, false);
} else {
// other categories return their subscriptions, without going deeper
$subs = Arsse::$db->subscriptionList($user, $cat, false);
}
} catch (ExceptionInput $e) {
// in case of errors (invalid category), return what we have so far
return $out;
}
// append subscriptions to the output
$order = 0;
$count = 0;
foreach ($subs as $s) {
$order++;
if ($unread && !$s['unread']) {
// ignore any subscriptions with zero unread in "unread-only" mode
continue;
} elseif ($offset > 0) {
// skip as many subscriptions as necessary to remove any requested offset
$offset--;
continue;
} elseif ($limit && $count >= $limit) {
// if we've reached the requested limit, stop
// NOTE: TT-RSS blindly accepts negative limits and returns an empty array
break;
}
// otherwise, append the subscription
$out[] = [
'id' => (int) $s['id'],
'title' => $s['title'],
'unread' => (int) $s['unread'],
'cat_id' => (int) $s['folder'],
'feed_url' => $s['url'],
'has_icon' => (bool) $s['favicon'],
'last_updated' => (int) Date::transform($s['updated'], "unix", "sql"),
'order_id' => $order,
];
$count++;
}
return $out;
}
protected function feedError(FeedException $e): array {
// N.B.: we don't return code 4 (multiple feeds discovered); we simply pick the first feed discovered
switch ($e->getCode()) {
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case 10502: // invalid URL
return ['code' => 2, 'message' => $e->getMessage()];
case 10521: // no feeds discovered
return ['code' => 3, 'message' => $e->getMessage()];
case 10511:
case 10512:
case 10522: // malformed data
return ['code' => 6, 'message' => $e->getMessage()];
default: // unable to download
return ['code' => 5, 'message' => $e->getMessage()];
}
}
public function opSubscribeToFeed(array $data): array {
if (!$data['feed_url'] || !ValueInfo::id($data['category_id'], true)) {
// if the feed URL or the category ID is invalid, throw an error
throw new Exception("INCORRECT_USAGE");
}
$url = (string) $data['feed_url'];
$folder = (int) $data['category_id'];
$fetchUser = (string) $data['login'];
$fetchPassword = (string) $data['password'];
// check to make sure the requested folder exists before doing anything else, if one is specified
if ($folder) {
try {
Arsse::$db->folderPropertiesGet(Arsse::$user->id, $folder);
} catch (ExceptionInput $e) {
// folder does not exist: TT-RSS is a bit weird in this case and returns a feed ID of 0. It checks the feed first, but we do not
return ['code' => 1, 'feed_id' => 0];
}
}
try {
$id = Arsse::$db->subscriptionAdd(Arsse::$user->id, $url, $fetchUser, $fetchPassword);
} catch (ExceptionInput $e) {
// subscription already exists; retrieve the existing ID and return that with the correct code
for ($triedDiscovery = 0; $triedDiscovery <= 1; $triedDiscovery++) {
$subs = Arsse::$db->subscriptionList(Arsse::$user->id);
$id = false;
foreach ($subs as $sub) {
if ($sub['url']===$url) {
$id = (int) $sub['id'];
break;
}
}
if ($id) {
break;
} elseif (!$triedDiscovery) {
// if we didn't find the ID we perform feed discovery for the next iteration; this is pretty messy: discovery ends up being done twice because it was already done in $db->subscriptionAdd()
try {
$url = Feed::discover($url, $fetchUser, $fetchPassword);
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} catch (FeedException $e) {
// feed errors (handled above)
return $this->feedError($e);
}
}
}
return ['code' => 0, 'feed_id' => $id];
} catch (FeedException $e) {
// feed errors (handled above)
return $this->feedError($e);
}
// if all went well, move the new subscription to the requested folder (if one was requested)
try {
Arsse::$db->subscriptionPropertiesSet(Arsse::$user->id, $id, ['folder' => $folder]);
} catch (ExceptionInput $e) {
// ignore errors
}
return ['code' => 1, 'feed_id' => $id];
}
public function opUnsubscribeFeed(array $data): array {
try {
// attempt to remove the feed
Arsse::$db->subscriptionRemove(Arsse::$user->id, (int) $data['feed_id']);
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} catch (ExceptionInput $e) {
throw new Exception("FEED_NOT_FOUND");
}
return ['status' => "OK"];
}
public function opMoveFeed(array $data) {
if (!ValueInfo::id($data['feed_id']) || !isset($data['category_id']) || !ValueInfo::id($data['category_id'], true)) {
// if the feed or folder is invalid, throw an error
throw new Exception("INCORRECT_USAGE");
}
$in = [
'folder' => $data['category_id'],
];
try {
// try to move the feed
Arsse::$db->subscriptionPropertiesSet(Arsse::$user->id, $data['feed_id'], $in);
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} catch (ExceptionInput $e) {
// ignore all errors
}
return null;
}
public function opRenameFeed(array $data) {
$info = ValueInfo::str($data['caption']);
if (!ValueInfo::id($data['feed_id']) || !($info & ValueInfo::VALID) || ($info & ValueInfo::EMPTY) || ($info & ValueInfo::WHITE)) {
// if the feed ID or name is invalid, throw an error
throw new Exception("INCORRECT_USAGE");
}
$in = [
'title' => $data['caption'],
];
try {
// try to rename the feed
Arsse::$db->subscriptionPropertiesSet(Arsse::$user->id, $data['feed_id'], $in);
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} catch (ExceptionInput $e) {
// ignore all errors
}
return null;
}
public function opUpdateFeed(array $data): array {
if (!isset($data['feed_id']) || !ValueInfo::id($data['feed_id'])) {
// if the feed is invalid, throw an error
throw new Exception("INCORRECT_USAGE");
}
try {
Arsse::$db->feedUpdate(Arsse::$db->subscriptionPropertiesGet(Arsse::$user->id, $data['feed_id'])['feed']);
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} catch (ExceptionInput $e) {
throw new Exception("FEED_NOT_FOUND");
}
return ['status' => "OK"];
}
protected function labelIn($id, bool $throw = true): int {
if (!(ValueInfo::int($id) & ValueInfo::NEG) || $id > (-1 - self::LABEL_OFFSET)) {
if ($throw) {
throw new Exception("INCORRECT_USAGE");
} else {
return 0;
}
}
return (abs($id) - self::LABEL_OFFSET);
}
protected function labelOut($id): int {
return ((int) $id * -1 - self::LABEL_OFFSET);
}
public function opGetLabels(array $data): array {
// this function doesn't complain about invalid article IDs
$article = ValueInfo::id($data['article_id']) ? $data['article_id'] : 0;
try {
$list = $article ? Arsse::$db->articleLabelsGet(Arsse::$user->id, $article) : [];
} catch (ExceptionInput $e) {
$list = [];
}
$out = [];
foreach (Arsse::$db->labelList(Arsse::$user->id) as $l) {
$out[] = [
'id' => $this->labelOut($l['id']),
'caption' => $l['name'],
'fg_color' => "",
'bg_color' => "",
'checked' => in_array($l['id'], $list),
];
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}
return $out;
}
public function opAddLabel(array $data) {
$in = [
'name' => (string) $data['caption'],
];
try {
return $this->labelOut(Arsse::$db->labelAdd(Arsse::$user->id, $in));
} catch (ExceptionInput $e) {
switch ($e->getCode()) {
case 10236: // label already exists
// retrieve the ID of the existing label; duplicating a label silently returns the existing one
return $this->labelOut(Arsse::$db->labelPropertiesGet(Arsse::$user->id, $in['name'], true)['id']);
default: // other errors related to input
throw new Exception("INCORRECT_USAGE");
}
}
}
public function opRemoveLabel(array $data) {
// normalize the label ID; missing or invalid IDs are rejected
$id = $this->labelIn($data['label_id']);
try {
// attempt to remove the label
Arsse::$db->labelRemove(Arsse::$user->id, $id);
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} catch (ExceptionInput $e) {
// ignore all errors
}
return null;
}
public function opRenameLabel(array $data) {
// normalize input; missing or invalid IDs are rejected
$id = $this->labelIn($data['label_id']);
$name = (string) $data['caption'];
try {
// try to rename the folder
Arsse::$db->labelPropertiesSet(Arsse::$user->id, $id, ['name' => $name]);
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} catch (ExceptionInput $e) {
if ($e->getCode()==10237) {
// if the supplied ID was invalid, report an error; other errors are to be ignored
throw new Exception("INCORRECT_USAGE");
}
}
return null;
}
public function opSetArticleLabel(array $data): array {
$label = $this->labelIn($data['label_id']);
$articles = explode(",", (string) $data['article_ids']);
$assign = $data['assign'] ?? false;
$out = 0;
$in = array_chunk($articles, 50);
for ($a = 0; $a < sizeof($in); $a++) {
// initialize the matching context
$c = new Context;
$c->articles($in[$a]);
try {
$out += Arsse::$db->labelArticlesSet(Arsse::$user->id, $label, $c, !$assign);
} catch (ExceptionInput $e) {
}
}
return ['status' => "OK", 'updated' => $out];
}
public function opCatchUpFeed(array $data): array {
$id = $data['feed_id'] ?? self::FEED_ARCHIVED;
$cat = $data['is_cat'] ?? false;
$out = ['status' => "OK"];
// first prepare the context; unsupported contexts simply return early
$c = new Context;
if ($cat) { // categories
switch ($id) {
case self::CAT_SPECIAL:
case self::CAT_NOT_SPECIAL:
case self::CAT_ALL:
// not valid
return $out;
case self::CAT_UNCATEGORIZED:
// this requires a shallow context since in TTRSS the zero/null folder ("Uncategorized") is apart from the tree rather than at the root
$c->folderShallow(0);
break;
case self::CAT_LABELS:
$c->labelled(true);
break;
default:
// any actual category
$c->folder($id);
break;
}
} else { // feeds
if ($this->labelIn($id, false)) { // labels
$c->label($this->labelIn($id));
} else {
switch ($id) {
case self::FEED_ARCHIVED:
// not implemented (also, evidently, not implemented in TTRSS)
return $out;
case self::FEED_STARRED:
$c->starred(true);
break;
case self::FEED_PUBLISHED:
// not implemented
// TODO: if the Published feed is implemented, the catchup function needs to be modified accordingly
return $out;
case self::FEED_FRESH:
$c->modifiedSince(Date::sub("PT24H"));
break;
case self::FEED_ALL:
// no context needed here
break;
case self::FEED_READ:
// everything in the Recently read feed is, by definition, already read
return $out;
default:
// any actual feed
$c->subscription($id);
}
}
}
// perform the marking
try {
Arsse::$db->articleMark(Arsse::$user->id, ['read' => true], $c);
} catch (ExceptionInput $e) {
// ignore all errors
}
// return boilerplate output
return $out;
}
public function opUpdateArticle(array $data): array {
// normalize input
$articles = array_filter(ValueInfo::normalize(explode(",", (string) $data['article_ids']), ValueInfo::T_INT | ValueInfo::M_ARRAY), [ValueInfo::class, "id"]);
if (!$articles) {
// if there are no valid articles this is an error
throw new Exception("INCORRECT_USAGE");
}
$out = 0;
$tr = Arsse::$db->begin();
switch ($data['field']) {
case 0: // starred
switch ($data['mode']) {
case 0: // set false
case 1: // set true
$out += Arsse::$db->articleMark(Arsse::$user->id, ['starred' => (bool) $data['mode']], (new Context)->articles($articles));
break;
case 2: //toggle
$on = array_column(Arsse::$db->articleList(Arsse::$user->id, (new Context)->articles($articles)->starred(true), ["id"])->getAll(), "id");
$off = array_column(Arsse::$db->articleList(Arsse::$user->id, (new Context)->articles($articles)->starred(false), ["id"])->getAll(), "id");
if ($off) {
$out += Arsse::$db->articleMark(Arsse::$user->id, ['starred' => true], (new Context)->articles($off));
}
if ($on) {
$out += Arsse::$db->articleMark(Arsse::$user->id, ['starred' => false], (new Context)->articles($on));
}
break;
default:
throw new Exception("INCORRECT_USAGE");
}
break;
case 1: // published
switch ($data['mode']) {
case 0: // set false
case 1: // set true
case 2: //toggle
// TODO: the Published feed is not yet implemeted; once it is the updateArticle operation must be amended accordingly
break;
default:
throw new Exception("INCORRECT_USAGE");
}
break;
case 2: // unread
// NOTE: we use a "read" flag rather than "unread", so the booleans are swapped
switch ($data['mode']) {
case 0: // set false
case 1: // set true
$out += Arsse::$db->articleMark(Arsse::$user->id, ['read' => !$data['mode']], (new Context)->articles($articles));
break;
case 2: //toggle
$on = array_column(Arsse::$db->articleList(Arsse::$user->id, (new Context)->articles($articles)->unread(true), ["id"])->getAll(), "id");
$off = array_column(Arsse::$db->articleList(Arsse::$user->id, (new Context)->articles($articles)->unread(false), ["id"])->getAll(), "id");
if ($off) {
$out += Arsse::$db->articleMark(Arsse::$user->id, ['read' => false], (new Context)->articles($off));
}
if ($on) {
$out += Arsse::$db->articleMark(Arsse::$user->id, ['read' => true], (new Context)->articles($on));
}
break;
default:
throw new Exception("INCORRECT_USAGE");
}
break;
case 3: // article note
$out += Arsse::$db->articleMark(Arsse::$user->id, ['note' => (string) $data['data']], (new Context)->articles($articles));
break;
default:
throw new Exception("INCORRECT_USAGE");
}
$tr->commit();
return ['status' => "OK", 'updated' => $out];
}
public function opGetArticle(array $data): array {
// normalize input
$articles = array_filter(ValueInfo::normalize(explode(",", (string) $data['article_id']), ValueInfo::T_INT | ValueInfo::M_ARRAY), [ValueInfo::class, "id"]);
if (!$articles) {
// if there are no valid articles this is an error
throw new Exception("INCORRECT_USAGE");
}
$tr = Arsse::$db->begin();
// retrieve the list of label names for the user
$labels = [];
foreach (Arsse::$db->labelList(Arsse::$user->id, false) as $label) {
$labels[$label['id']] = $label['name'];
}
// retrieve the requested articles
$out = [];
$columns = [
"id",
"guid",
"title",
"url",
"unread",
"starred",
"edited_date",
"subscription",
"subscription_title",
"note",
"content",
"media_url",
"media_type",
];
foreach (Arsse::$db->articleList(Arsse::$user->id, (new Context)->articles($articles), $columns) as $article) {
$out[] = [
'id' => (string) $article['id'], // string cast to be consistent with TTRSS
'guid' => $article['guid'] ? "SHA256:".$article['guid'] : null,
'title' => $article['title'],
'link' => $article['url'],
'labels' => $this->articleLabelList($labels, $article['id']),
'unread' => (bool) $article['unread'],
'marked' => (bool) $article['starred'],
'published' => false, // TODO: if the Published feed is implemented, the getArticle operation should be amended accordingly
'comments' => "", // FIXME: What is this?
'author' => $article['author'],
'updated' => Date::transform($article['edited_date'], "unix", "sql"),
'feed_id' => (string) $article['subscription'], // string cast to be consistent with TTRSS
'feed_title' => $article['subscription_title'],
'attachments' => $article['media_url'] ? [[
'id' => (string) 0, // string cast to be consistent with TTRSS; nonsense ID because we don't use them for enclosures
'content_url' => $article['media_url'],
'content_type' => $article['media_type'],
'title' => "",
'duration' => "",
'width' => "",
'height' => "",
'post_id' => (string) $article['id'], // string cast to be consistent with TTRSS
]] : [], // TODO: We need to support multiple enclosures
'score' => 0, // score is not implemented as it is not modifiable from the TTRSS API
'note' => strlen((string) $article['note']) ? $article['note'] : null,
'lang' => "", // FIXME: picoFeed should be able to retrieve this information
'content' => $article['content'],
];
}
return $out;
}
protected function articleLabelList(array $labels, $id): array {
$out = [];
if (!$labels) {
return $out;
}
foreach (Arsse::$db->articleLabelsGet(Arsse::$user->id, (int) $id) as $label) {
$out[] = [
$this->labelOut($label), // ID
$labels[$label], // name
"", // foreground colour
"", // background colour
];
}
return $out;
}
public function opGetCompactHeadlines(array $data): array {
// getCompactHeadlines supports fewer features than getHeadlines
$data = [
'feed_id' => $data['feed_id'],
'view_mode' => $data['view_mode'],
'since_id' => $data['since_id'],
'limit' => $data['limit'],
'skip' => $data['skip'],
];
$data = $this->normalizeInput($data, self::VALID_INPUT, "unix");
// fetch the list of IDs
$out = [];
try {
foreach ($this->fetchArticles($data, ["id"]) as $row) {
$out[] = ['id' => (int) $row['id']];
}
} catch (ExceptionInput $e) {
// ignore database errors (feeds/categories that don't exist)
}
return $out;
}
public function opGetHeadlines(array $data): array {
// normalize input
$data['limit'] = max(min(!$data['limit'] ? self::LIMIT_ARTICLES : $data['limit'], self::LIMIT_ARTICLES), 0); // at most 200; not specified/zero yields 200; negative values yield no limit
$tr = Arsse::$db->begin();
// retrieve the list of label names for the user
$labels = [];
foreach (Arsse::$db->labelList(Arsse::$user->id, false) as $label) {
$labels[$label['id']] = $label['name'];
}
// retrieve the requested articles
$out = [];
try {
$columns = [
"id",
"guid",
"title",
"url",
"unread",
"starred",
"edited_date",
"published_date",
"subscription",
"subscription_title",
"note",
($data['show_content'] || $data['show_excerpt']) ? "content" : "",
($data['include_attachments']) ? "media_url": "",
($data['include_attachments']) ? "media_type": "",
];
foreach ($this->fetchArticles($data, $columns) as $article) {
$row = [
'id' => (int) $article['id'],
'guid' => $article['guid'] ? "SHA256:".$article['guid'] : "",
'title' => $article['title'],
'link' => $article['url'],
'labels' => $this->articleLabelList($labels, $article['id']),
'unread' => (bool) $article['unread'],
'marked' => (bool) $article['starred'],
'published' => false, // TODO: if the Published feed is implemented, the getHeadlines operation should be amended accordingly
'author' => $article['author'],
'updated' => Date::transform($article['edited_date'], "unix", "sql"),
'is_updated' => ($article['published_date'] < $article['edited_date']),
'feed_id' => (string) $article['subscription'], // string cast to be consistent with TTRSS
'feed_title' => $article['subscription_title'],
'score' => 0, // score is not implemented as it is not modifiable from the TTRSS API
'note' => strlen((string) $article['note']) ? $article['note'] : null,
'lang' => "", // FIXME: picoFeed should be able to retrieve this information
'tags' => Arsse::$db->articleCategoriesGet(Arsse::$user->id, $article['id']),
'comments_count' => 0,
'comments_link' => "",
6 years ago
'always_display_attachments' => false,
];
if ($data['show_content']) {
$row['content'] = $article['content'];
}
if ($data['show_excerpt']) {
// prepare an excerpt from the content
$text = strip_tags($article['content']); // get rid of all tags; elements with problematic content (e.g. script, style) should already be gone thanks to sanitization
$text = html_entity_decode($text, \ENT_QUOTES | \ENT_HTML5, "UTF-8");
$text = trim($text); // trim whitespace at ends
$text = preg_replace("<\s+>s", " ", $text); // replace runs of whitespace with a single space
$row['excerpt'] = grapheme_substr($text, 0, self::LIMIT_EXCERPT).(grapheme_strlen($text) > self::LIMIT_EXCERPT ? "…" : ""); // add an ellipsis if the string is longer than N characters
}
if ($data['include_attachments']) {
$row['attachments'] = $article['media_url'] ? [[
'id' => (string) 0, // string cast to be consistent with TTRSS; nonsense ID because we don't use them for enclosures
'content_url' => $article['media_url'],
'content_type' => $article['media_type'],
'title' => "",
'duration' => "",
'width' => "",
'height' => "",
'post_id' => (string) $article['id'], // string cast to be consistent with TTRSS
]] : []; // TODO: We need to support multiple enclosures
}
$out[] = $row;
}
} catch (ExceptionInput $e) {
// ignore database errors (feeds/categories that don't exist)
// ensure that if using a header the database is not needlessly queried again
$data['skip'] = null;
}
if ($data['include_header']) {
if ($data['skip'] > 0 && $data['order_by'] != "date_reverse") {
// when paginating the header returns the latest ("first") item ID in the full list; we get this ID here
$data['skip'] = 0;
$data['limit'] = 1;
$firstID = ($this->fetchArticles($data, ["id"])->getRow() ?? ['id' => 0])['id'];
} elseif ($data['order_by']=="date_reverse") {
// the "date_reverse" sort order doesn't get a first ID because it's meaningless for ascending-order pagination (pages doesn't go stale)
$firstID = 0;
} else {
// otherwise just use the ID of the first item in the list we've already computed
$firstID = ($out) ? $out[0]['id'] : 0;
}
// wrap the output with (but after) the header
$out = [
[
'id' => (int) $data['feed_id'],
'is_cat' => $data['is_cat'] ?? false,
'first_id' => (int) $firstID,
],
$out,
];
}
return $out;
}
protected function fetchArticles(array $data, array $fields): \JKingWeb\Arsse\Db\Result {
// normalize input
if (is_null($data['feed_id'])) {
throw new Exception("INCORRECT_USAGE");
}
$id = $data['feed_id'];
$cat = $data['is_cat'] ?? false;
$shallow = !($data['include_nested'] ?? false);
$viewMode = in_array($data['view_mode'], ["all_articles", "adaptive", "unread", "marked", "has_note", "published"]) ? $data['view_mode'] : "all_articles";
// prepare the context; unsupported, invalid, or inherently empty contexts return synthetic empty result sets
$c = new Context;
$tr = Arsse::$db->begin();
// start with the feed or category ID
if ($cat) { // categories
switch ($id) {
case self::CAT_SPECIAL:
// not valid
return new ResultEmpty;
case self::CAT_NOT_SPECIAL:
case self::CAT_ALL:
// no context needed here
break;
case self::CAT_UNCATEGORIZED:
// this requires a shallow context since in TTRSS the zero/null folder ("Uncategorized") is apart from the tree rather than at the root
$c->folderShallow(0);
break;
case self::CAT_LABELS:
$c->labelled(true);
break;
default:
// any actual category
if ($shallow) {
$c->folderShallow($id);
} else {
$c->folder($id);
}
break;
}
} else { // feeds
if ($this->labelIn($id, false)) { // labels
$c->label($this->labelIn($id));
} else {
switch ($id) {
case self::FEED_ARCHIVED:
// not implemented
return new ResultEmpty;
case self::FEED_STARRED:
$c->starred(true);
break;
case self::FEED_PUBLISHED:
// not implemented
// TODO: if the Published feed is implemented, the headline function needs to be modified accordingly
return new ResultEmpty;
case self::FEED_FRESH:
$c->modifiedSince(Date::sub("PT24H"))->unread(true);
break;
case self::FEED_ALL:
// no context needed here
break;
case self::FEED_READ:
$c->markedSince(Date::sub("PT24H"))->unread(false); // FIXME: this selects any recently touched article which is read, not necessarily a recently read one
break;
default:
// any actual feed
$c->subscription($id);
break;
}
}
}
// next handle the view mode
switch ($viewMode) {
case "all_articles":
// no context needed here
break;
case "adaptive":
// adaptive means "return only unread unless there are none, in which case return all articles"
if ($c->unread !== false && Arsse::$db->articleCount(Arsse::$user->id, (clone $c)->unread(true))) {
$c->unread(true);
}
break;
case "unread":
if ($c->unread !== false) {
$c->unread(true);
} else {
// unread mode in the "Recently Read" feed is a no-op
return new ResultEmpty;
}
break;
case "marked":
$c->starred(true);
break;
case "has_note":
$c->annotated(true);
break;
case "published":
// not implemented
// TODO: if the Published feed is implemented, the headline function needs to be modified accordingly
return new ResultEmpty;
default:
throw new \JKingWeb\Arsse\Exception("constantUnknown", $viewMode); // @codeCoverageIgnore
}
// TODO: implement searching
// handle sorting
switch ($data['order_by']) {
case "date_reverse":
// sort oldest first
$c->reverse(false);
break;
case "feed_dates":
// sort newest first
$c->reverse(true);
break;
default:
// in TT-RSS the default sort order is unusual for some of the special feeds; we do not implement this
$c->reverse(true);
break;
}
// set the limit and offset
if ($data['limit'] > 0) {
$c->limit($data['limit']);
}
if ($data['skip'] > 0) {
$c->offset($data['skip']);
}
// set the minimum article ID
if ($data['since_id'] > 0) {
$c->oldestArticle($data['since_id'] + 1);
}
// return results
return Arsse::$db->articleList(Arsse::$user->id, $c, $fields);
}
}