ttrss/classes/plugin.php

696 lines
20 KiB
PHP

<?php
abstract class Plugin {
const API_VERSION_COMPAT = 1;
/** @var PDO $pdo */
protected $pdo;
/**
* @param PluginHost $host
*
* @return void
* */
abstract function init($host);
/** @return array<null|float|string|bool> */
abstract function about();
// return array(1.0, "plugin", "No description", "No author", false);
function __construct() {
$this->pdo = Db::pdo();
}
/** @return array<string,bool> */
function flags() {
/* associative array, possible keys:
needs_curl = boolean
*/
return array();
}
/**
* @param string $method
*
* @return bool */
function is_public_method($method) {
return false;
}
/**
* @param string $method
*
* @return bool */
function csrf_ignore($method) {
return false;
}
/** @return string */
function get_js() {
return "";
}
/** @return string */
function get_css() {
return "";
}
/** @return string */
function get_prefs_js() {
return "";
}
/** @return int */
function api_version() {
return Plugin::API_VERSION_COMPAT;
}
/* gettext-related helpers */
/**
* @param string $msgid
*
* @return string */
function __($msgid) {
/** @var Plugin $this -- this is a strictly template-related hack */
return _dgettext(PluginHost::object_to_domain($this), $msgid);
}
/**
* @param string $singular
* @param string $plural
* @param int $number
*
* @return string */
function _ngettext($singular, $plural, $number) {
/** @var Plugin $this -- this is a strictly template-related hack */
return _dngettext(PluginHost::object_to_domain($this), $singular, $plural, $number);
}
/** @return string */
function T_sprintf() {
$args = func_get_args();
$msgid = array_shift($args);
return vsprintf($this->__($msgid), $args);
}
/* plugin hook methods */
/* GLOBAL hooks are invoked in global context, only available to system plugins (loaded via .env for all users) */
/** Adds buttons for article (on the right) - e.g. mail, share, add note.
* @param array<string,mixed> $line
* @return string
* @see PluginHost::HOOK_ARTICLE_BUTTON
* @see Plugin::hook_article_left_button()
*/
function hook_article_button($line) {
user_error("Dummy method invoked.", E_USER_ERROR);
return "";
}
/** Allows plugins to alter article data as gathered from feed XML, i.e. embed images, get full text content, etc.
* @param array<string,mixed> $article
* @return array<string,mixed>
* @see PluginHost::HOOK_ARTICLE_FILTER
*/
function hook_article_filter($article) {
user_error("Dummy method invoked.", E_USER_ERROR);
return [];
}
/** Allow adding new UI elements (e.g. accordion panes) to (top) tab contents in Preferences
* @param string $tab
* @return void
* @see PluginHost::HOOK_PREFS_TAB
*/
function hook_prefs_tab($tab) {
user_error("Dummy method invoked.", E_USER_ERROR);
}
/** Allow adding new content to various sections of preferences UI (i.e. OPML import/export pane)
* @param string $section
* @return void
* @see PluginHost::HOOK_PREFS_TAB_SECTION
*/
function hook_prefs_tab_section($section) {
user_error("Dummy method invoked.", E_USER_ERROR);
}
/** Allows adding new (top) tabs in preferences UI
* @return void
* @see PluginHost::HOOK_PREFS_TABS
*/
function hook_prefs_tabs() {
user_error("Dummy method invoked.", E_USER_ERROR);
}
/** Invoked when feed XML is processed by FeedParser class
* @param FeedParser $parser
* @param int $feed_id
* @return void
* @see PluginHost::HOOK_FEED_PARSED
*/
function hook_feed_parsed($parser, $feed_id) {
user_error("Dummy method invoked.", E_USER_ERROR);
}
/** GLOBAL: Invoked when a feed update task finishes
* @param array<string,string> $cli_options
* @return void
* @see PluginHost::HOOK_UPDATE_TASK
*/
function hook_update_task($cli_options) {
user_error("Dummy method invoked.", E_USER_ERROR);
}
/** This is a pluginhost compatibility wrapper that invokes $this->authenticate(...$args) (Auth_Base)
* @param string $login
* @param string $password
* @param string $service
* @return int|false user_id
* @see PluginHost::HOOK_AUTH_USER
*/
function hook_auth_user($login, $password, $service = '') {
user_error("Dummy method invoked.", E_USER_ERROR);
return false;
}
/** IAuthModule only
* @param string $login
* @param string $password
* @param string $service
* @return int|false user_id
*/
function authenticate($login, $password, $service = '') {
user_error("Dummy method invoked.", E_USER_ERROR);
return false;
}
/** Allows plugins to modify global hotkey map (hotkey sequence -> action)
* @param array<string, string> $hotkeys
* @return array<string, string>
* @see PluginHost::HOOK_HOTKEY_MAP
* @see Plugin::hook_hotkey_info()
*/
function hook_hotkey_map($hotkeys) {
user_error("Dummy method invoked.", E_USER_ERROR);
return [];
}
/** Invoked when article is rendered by backend (before it gets passed to frontent JS code) - three panel mode
* @param array<string, mixed> $article
* @return array<string, mixed>
* @see PluginHost::HOOK_RENDER_ARTICLE
*/
function hook_render_article($article) {
user_error("Dummy method invoked.", E_USER_ERROR);
return [];
}
/** Invoked when article is rendered by backend (before it gets passed to frontent JS code) - combined mode
* @param array<string, mixed> $article
* @return array<string, mixed>
* @see PluginHost::HOOK_RENDER_ARTICLE_CDM
*/
function hook_render_article_cdm($article) {
user_error("Dummy method invoked.", E_USER_ERROR);
return [];
}
/** Invoked when raw feed XML data has been successfully downloaded (but not parsed yet)
* @param string $feed_data
* @param string $fetch_url
* @param int $owner_uid
* @param int $feed
* @return string
* @see PluginHost::HOOK_FEED_FETCHED
*/
function hook_feed_fetched($feed_data, $fetch_url, $owner_uid, $feed) {
user_error("Dummy method invoked.", E_USER_ERROR);
return "";
}
/** Invoked on article content when it is sanitized (i.e. potentially harmful tags removed)
* @param DOMDocument $doc
* @param string $site_url
* @param array<string> $allowed_elements
* @param array<string> $disallowed_attributes
* @param int $article_id
* @return DOMDocument|array<int,DOMDocument|array<string>>
* @see PluginHost::HOOK_SANITIZE
*/
function hook_sanitize($doc, $site_url, $allowed_elements, $disallowed_attributes, $article_id) {
user_error("Dummy method invoked.", E_USER_ERROR);
return $doc;
}
/** Invoked when article is rendered by backend (before it gets passed to frontent JS code) - exclusive to API clients
* @param array{'article': array<string,mixed>|null, 'headline': array<string,mixed>|null} $params
* @return array<string, string>
* @see PluginHost::HOOK_RENDER_ARTICLE_API
*/
function hook_render_article_api($params) {
user_error("Dummy method invoked.", E_USER_ERROR);
return [];
}
/** Allows adding new UI elements to tt-rss main toolbar (to the right, before Actions... dropdown)
* @return string
* @see PluginHost::HOOK_TOOLBAR_BUTTON
*/
function hook_toolbar_button() {
user_error("Dummy method invoked.", E_USER_ERROR);
return "";
}
/** Allows adding new items to tt-rss main Actions... dropdown menu
* @return string
* @see PluginHost::HOOK_ACTION_ITEM
*/
function hook_action_item() {
user_error("Dummy method invoked.", E_USER_ERROR);
return "";
}
/** Allows adding new UI elements to the toolbar area related to currently loaded feed headlines
* @param int $feed_id
* @param bool $is_cat
* @return string
* @see PluginHost::HOOK_HEADLINE_TOOLBAR_BUTTON
*/
function hook_headline_toolbar_button($feed_id, $is_cat) {
user_error("Dummy method invoked.", E_USER_ERROR);
return "";
}
/** Allows adding new hotkey action names and descriptions
* @param array<string, array<string, string>> $hotkeys
* @return array<string, array<string, string>>
* @see PluginHost::HOOK_HOTKEY_INFO
* @see Plugin::hook_hotkey_map()
*/
function hook_hotkey_info($hotkeys) {
user_error("Dummy method invoked.", E_USER_ERROR);
return [];
}
/** Adds per-article buttons on the left side
* @param array<string,mixed> $row
* @return string
* @see PluginHost::HOOK_ARTICLE_LEFT_BUTTON
* @see Plugin::hook_article_button()
*/
function hook_article_left_button($row) {
user_error("Dummy method invoked.", E_USER_ERROR);
return "";
}
/** Allows adding new UI elements to the "Plugins" tab of the feed editor UI
* @param int $feed_id
* @return void
* @see PluginHost::HOOK_PREFS_EDIT_FEED
*/
function hook_prefs_edit_feed($feed_id) {
user_error("Dummy method invoked.", E_USER_ERROR);
}
/** Invoked when data is saved in the feed editor
* @param int $feed_id
* @return void
* @see PluginHost::HOOK_PREFS_SAVE_FEED
*/
function hook_prefs_save_feed($feed_id) {
user_error("Dummy method invoked.", E_USER_ERROR);
}
/** Allows overriding built-in fetching mechanism for feeds, substituting received data if necessary
* (i.e. origin site doesn't actually provide any RSS feeds), or XML is invalid
* @param string $feed_data
* @param string $fetch_url
* @param int $owner_uid
* @param int $feed
* @param int $last_article_timestamp
* @param string $auth_login
* @param string $auth_pass
* @return string (possibly mangled feed data)
* @see PluginHost::HOOK_FETCH_FEED
*/
function hook_fetch_feed($feed_data, $fetch_url, $owner_uid, $feed, $last_article_timestamp, $auth_login, $auth_pass) {
user_error("Dummy method invoked.", E_USER_ERROR);
return "";
}
/** Invoked when headlines data ($row) has been retrieved from the database
* @param array<string,mixed> $row
* @param int $excerpt_length
* @return array<string,mixed>
* @see PluginHost::HOOK_QUERY_HEADLINES
*/
function hook_query_headlines($row, $excerpt_length) {
user_error("Dummy method invoked.", E_USER_ERROR);
return [];
}
/** This is run periodically by the update daemon when idle (available both to user and system plugins)
* @return void
* @see PluginHost::HOOK_HOUSE_KEEPING */
function hook_house_keeping() {
user_error("Dummy method invoked.", E_USER_ERROR);
}
/** Allows overriding built-in article search
* @param string $query
* @return array<int, string|array<string>> - list(SQL search query, highlight keywords)
* @see PluginHost::HOOK_SEARCH
*/
function hook_search($query) {
user_error("Dummy method invoked.", E_USER_ERROR);
return [];
}
/** Invoked when enclosures are rendered to HTML (when article itself is rendered)
* @param string $enclosures_formatted
* @param array<int, array<string, mixed>> $enclosures
* @param int $article_id
* @param bool $always_display_enclosures
* @param string $article_content
* @param bool $hide_images
* @return string|array<string,array<int, array<string, mixed>>> ($enclosures_formatted, $enclosures)
* @see PluginHost::HOOK_FORMAT_ENCLOSURES
*/
function hook_format_enclosures($enclosures_formatted, $enclosures, $article_id, $always_display_enclosures, $article_content, $hide_images) {
user_error("Dummy method invoked.", E_USER_ERROR);
return "";
}
/** Invoked during feed subscription (after data has been fetched)
* @param string $contents
* @param string $url
* @param string $auth_login
* @param string $auth_pass
* @return string (possibly mangled feed data)
* @see PluginHost::HOOK_SUBSCRIBE_FEED
*/
function hook_subscribe_feed($contents, $url, $auth_login, $auth_pass) {
user_error("Dummy method invoked.", E_USER_ERROR);
return "";
}
/**
* @param int $feed
* @param bool $is_cat
* @param array<string,mixed> $qfh_ret (headlines object)
* @return string
* @see PluginHost::HOOK_HEADLINES_BEFORE
*/
function hook_headlines_before($feed, $is_cat, $qfh_ret) {
user_error("Dummy method invoked.", E_USER_ERROR);
return "";
}
/**
* @param array<string,mixed> $entry
* @param int $article_id
* @param array<string,mixed> $rv
* @return string
* @see PluginHost::HOOK_RENDER_ENCLOSURE
*/
function hook_render_enclosure($entry, $article_id, $rv) {
user_error("Dummy method invoked.", E_USER_ERROR);
return "";
}
/**
* @param array<string,mixed> $article
* @param string $action
* @return array<string,mixed> ($article)
* @see PluginHost::HOOK_ARTICLE_FILTER_ACTION
*/
function hook_article_filter_action($article, $action) {
user_error("Dummy method invoked.", E_USER_ERROR);
return [];
}
/**
* @param array<string,mixed> $line
* @param int $feed
* @param bool $is_cat
* @param int $owner_uid
* @return array<string,mixed> ($line)
* @see PluginHost::HOOK_ARTICLE_EXPORT_FEED
*/
function hook_article_export_feed($line, $feed, $is_cat, $owner_uid) {
user_error("Dummy method invoked.", E_USER_ERROR);
return [];
}
/** Allows adding custom buttons to tt-rss main toolbar (left side)
* @return void
* @see PluginHost::HOOK_MAIN_TOOLBAR_BUTTON
*/
function hook_main_toolbar_button() {
user_error("Dummy method invoked.", E_USER_ERROR);
}
/** Invoked for every enclosure entry as article is being rendered
* @param array<string,string> $entry
* @param int $id
* @param array{'formatted': string, 'entries': array<int, array<string, mixed>>} $rv
* @return array<string,string> ($entry)
* @see PluginHost::HOOK_ENCLOSURE_ENTRY
*/
function hook_enclosure_entry($entry, $id, $rv) {
user_error("Dummy method invoked.", E_USER_ERROR);
return [];
}
/** Share plugins run this when article is being rendered as HTML for sharing
* @param string $html
* @param array<string,mixed> $row
* @return string ($html)
* @see PluginHost::HOOK_FORMAT_ARTICLE
*/
function hook_format_article($html, $row) {
user_error("Dummy method invoked.", E_USER_ERROR);
return "";
}
/** Invoked when basic feed information (title, site_url) is being collected, useful to override default if feed doesn't provide anything (or feed itself is synthesized)
* @param array{"title": string, "site_url": string} $basic_info
* @param string $fetch_url
* @param int $owner_uid
* @param int $feed_id
* @param string $auth_login
* @param string $auth_pass
* @return array{"title": string, "site_url": string}
* @see PluginHost::HOOK_FEED_BASIC_INFO
*/
function hook_feed_basic_info($basic_info, $fetch_url, $owner_uid, $feed_id, $auth_login, $auth_pass) {
user_error("Dummy method invoked.", E_USER_ERROR);
return $basic_info;
}
/** Invoked when file (e.g. cache entry, static data) is being sent to client, may override default mechanism
* using faster httpd-specific implementation (see nginx_xaccel)
* @param string $filename
* @return bool
* @see PluginHost::HOOK_SEND_LOCAL_FILE
*/
function hook_send_local_file($filename) {
user_error("Dummy method invoked.", E_USER_ERROR);
return false;
}
/** Invoked when user tries to unsubscribe from a feed, returning true would prevent any further default actions
* @param int $feed_id
* @param int $owner_uid
* @return bool
* @see PluginHost::HOOK_UNSUBSCRIBE_FEED
*/
function hook_unsubscribe_feed($feed_id, $owner_uid) {
user_error("Dummy method invoked.", E_USER_ERROR);
return false;
}
/** Invoked when mail is being sent (if no hooks are registered, tt-rss uses PHP mail() as a fallback)
* @param Mailer $mailer
* @param array<string,mixed> $params
* @return int
* @see PluginHost::HOOK_SEND_MAIL
*/
function hook_send_mail($mailer, $params) {
user_error("Dummy method invoked.", E_USER_ERROR);
return -1;
}
/** Invoked when filter is triggered on an article, may be used to implement logging for filters
* NOTE: $article_filters should be renamed $filter_actions because that's what this is
* @param int $feed_id
* @param int $owner_uid
* @param array<string,mixed> $article
* @param array<string,mixed> $matched_filters
* @param array<string,string|bool|int> $matched_rules
* @param array<string,string> $article_filters
* @return void
* @see PluginHost::HOOK_FILTER_TRIGGERED
*/
function hook_filter_triggered($feed_id, $owner_uid, $article, $matched_filters, $matched_rules, $article_filters) {
user_error("Dummy method invoked.", E_USER_ERROR);
}
/** Plugins may provide this to allow getting full article text (af_readbility implements this)
* @param string $url
* @return string|false
* @see PluginHost::HOOK_GET_FULL_TEXT
*/
function hook_get_full_text($url) {
user_error("Dummy method invoked.", E_USER_ERROR);
return "";
}
/** Invoked when article flavor image is being determined, allows overriding default selection logic
* @param array<string,string> $enclosures
* @param string $content
* @param string $site_url
* @param array<string,mixed> $article
* @return string|array<int,string>
* @see PluginHost::HOOK_ARTICLE_IMAGE
*/
function hook_article_image($enclosures, $content, $site_url, $article) {
user_error("Dummy method invoked.", E_USER_ERROR);
return "";
}
/** Allows adding arbitrary elements before feed tree
* @return string HTML
* @see PluginHost::HOOK_FEED_TREE
* */
function hook_feed_tree() {
user_error("Dummy method invoked.", E_USER_ERROR);
return "";
}
/** Invoked for every iframe to determine if it is allowed to be displayed
* @param string $url
* @return bool
* @see PluginHost::HOOK_IFRAME_WHITELISTED
*/
function hook_iframe_whitelisted($url) {
user_error("Dummy method invoked.", E_USER_ERROR);
return false;
}
/**
* @param object $enclosure
* @param int $feed
* @return object ($enclosure)
* @see PluginHost::HOOK_ENCLOSURE_IMPORTED
*/
function hook_enclosure_imported($enclosure, $feed) {
user_error("Dummy method invoked.", E_USER_ERROR);
return $enclosure;
}
/** Allows adding custom elements to headline sort dropdown (name -> caption)
* @return array<string,string>
* @see PluginHost::HOOK_HEADLINES_CUSTOM_SORT_MAP
*/
function hook_headlines_custom_sort_map() {
user_error("Dummy method invoked.", E_USER_ERROR);
return ["" => ""];
}
/** Allows overriding headline sorting (or provide custom sort methods)
* @param string $order
* @return array<int, string|bool> -- (query, skip_first_id)
* @see PluginHost::HOOK_HEADLINES_CUSTOM_SORT_OVERRIDE
*/
function hook_headlines_custom_sort_override($order) {
user_error("Dummy method invoked.", E_USER_ERROR);
return ["", false];
}
/** Allows adding custom elements to headlines Select... dropdown
* @deprecated removed, see Plugin::hook_headline_toolbar_select_menu_item2()
* @param int $feed_id
* @param int $is_cat
* @return string
* @see PluginHost::HOOK_HEADLINE_TOOLBAR_SELECT_MENU_ITEM
*/
function hook_headline_toolbar_select_menu_item($feed_id, $is_cat) {
user_error("Dummy method invoked.", E_USER_ERROR);
return "";
}
/** Allows adding custom elements to headlines Select... select dropdown (<option> format)
* @param int $feed_id
* @param int $is_cat
* @return string
* @see PluginHost::HOOK_HEADLINE_TOOLBAR_SELECT_MENU_ITEM2
*/
function hook_headline_toolbar_select_menu_item2($feed_id, $is_cat) {
user_error("Dummy method invoked.", E_USER_ERROR);
return "";
}
/** Invoked when user tries to subscribe to feed, may override information (i.e. feed URL) used afterwards
* @param string $url
* @param string $auth_login
* @param string $auth_pass
* @return bool
* @see PluginHost::HOOK_PRE_SUBSCRIBE
*/
function hook_pre_subscribe(&$url, $auth_login, $auth_pass) {
user_error("Dummy method invoked.", E_USER_ERROR);
return false;
}
/** Invoked after user logout, may override built-in behavior (redirect back to login page)
* @param string $login
* @param int $user_id
* @return array<mixed> - [0] - if set, url to redirect to
*/
function hook_post_logout($login, $user_id) {
return [""];
}
}