513 lines
16 KiB
PHP
513 lines
16 KiB
PHP
<?php
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/**
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* COPS (Calibre OPDS PHP Server) class file
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*
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* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
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* @author Sébastien Lucas <sebastien@slucas.fr>
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*/
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define ("VERSION", "0.3.0");
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date_default_timezone_set($config['default_timezone']);
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function getURLParam ($name, $default = NULL) {
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if (!empty ($_GET) && isset($_GET[$name])) {
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return $_GET[$name];
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}
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return $default;
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}
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function getUrlWithVersion ($url) {
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return $url . "?v=" . VERSION;
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}
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/**
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* This method is a direct copy-paste from
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* http://tmont.com/blargh/2010/1/string-format-in-php
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*/
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function str_format($format) {
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$args = func_get_args();
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$format = array_shift($args);
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preg_match_all('/(?=\{)\{(\d+)\}(?!\})/', $format, $matches, PREG_OFFSET_CAPTURE);
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$offset = 0;
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foreach ($matches[1] as $data) {
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$i = $data[0];
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$format = substr_replace($format, @$args[$i], $offset + $data[1] - 1, 2 + strlen($i));
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$offset += strlen(@$args[$i]) - 2 - strlen($i);
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}
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return $format;
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}
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/**
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* This method is based on this page
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* http://www.mind-it.info/2010/02/22/a-simple-approach-to-localization-in-php/
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*/
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function localize($phrase, $count=-1) {
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if ($count == 0)
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$phrase .= ".none";
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if ($count == 1)
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$phrase .= ".one";
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if ($count > 1)
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$phrase .= ".many";
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/* Static keyword is used to ensure the file is loaded only once */
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static $translations = NULL;
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/* If no instance of $translations has occured load the language file */
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if (is_null($translations)) {
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$lang = "en";
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if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE']))
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{
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$lang = substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2);
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}
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$lang_file_en = NULL;
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$lang_file = 'lang/Localization_' . $lang . '.json';
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if (!file_exists($lang_file)) {
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$lang_file = 'lang/' . 'Localization_en.json';
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}
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elseif ($lang != "en") {
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$lang_file_en = 'lang/' . 'Localization_en.json';
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}
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$lang_file_content = file_get_contents($lang_file);
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/* Load the language file as a JSON object and transform it into an associative array */
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$translations = json_decode($lang_file_content, true);
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if ($lang_file_en)
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{
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$lang_file_content = file_get_contents($lang_file_en);
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$translations_en = json_decode($lang_file_content, true);
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$translations = array_merge ($translations_en, $translations);
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}
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}
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return $translations[$phrase];
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}
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class Link
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{
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const OPDS_THUMBNAIL_TYPE = "http://opds-spec.org/image/thumbnail";
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const OPDS_IMAGE_TYPE = "http://opds-spec.org/image";
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const OPDS_ACQUISITION_TYPE = "http://opds-spec.org/acquisition";
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const OPDS_NAVIGATION_TYPE = "application/atom+xml;profile=opds-catalog;kind=navigation";
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const OPDS_PAGING_TYPE = "application/atom+xml;profile=opds-catalog;kind=acquisition";
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public $href;
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public $type;
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public $rel;
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public $title;
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public $facetGroup;
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public $activeFacet;
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public function __construct($phref, $ptype, $prel = NULL, $ptitle = NULL, $pfacetGroup = NULL, $pactiveFacet = FALSE) {
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$this->href = $phref;
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$this->type = $ptype;
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$this->rel = $prel;
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$this->title = $ptitle;
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$this->facetGroup = $pfacetGroup;
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$this->activeFacet = $pactiveFacet;
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}
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public function hrefXhtml () {
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return str_replace ("&", "&", $this->href);
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}
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}
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class LinkNavigation extends Link
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{
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public function __construct($phref, $prel = NULL, $ptitle = NULL) {
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parent::__construct ($phref, Link::OPDS_NAVIGATION_TYPE, $prel, $ptitle);
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$this->href = $_SERVER["SCRIPT_NAME"] . $this->href;
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}
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}
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class LinkFacet extends Link
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{
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public function __construct($phref, $ptitle = NULL, $pfacetGroup = NULL, $pactiveFacet = FALSE) {
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parent::__construct ($phref, Link::OPDS_PAGING_TYPE, "http://opds-spec.org/facet", $ptitle, $pfacetGroup, $pactiveFacet);
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$this->href = $_SERVER["SCRIPT_NAME"] . $this->href;
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}
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}
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class Entry
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{
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public $title;
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public $id;
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public $content;
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public $contentType;
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public $linkArray;
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public $localUpdated;
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private static $updated = NULL;
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public static $icons = array(
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Author::ALL_AUTHORS_ID => 'images/author.png',
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Serie::ALL_SERIES_ID => 'images/serie.png',
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Book::ALL_RECENT_BOOKS_ID => 'images/recent.png',
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Tag::ALL_TAGS_ID => 'images/tag.png',
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"calibre:books$" => 'images/allbook.png',
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"calibre:books:letter" => 'images/allbook.png'
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);
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public function getUpdatedTime () {
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if (!is_null ($this->localUpdated)) {
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return date (DATE_ATOM, $this->localUpdated);
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}
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if (is_null (self::$updated)) {
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self::$updated = time();
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}
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return date (DATE_ATOM, self::$updated);
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}
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public function __construct($ptitle, $pid, $pcontent, $pcontentType, $plinkArray) {
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global $config;
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$this->title = $ptitle;
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$this->id = $pid;
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$this->content = $pcontent;
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$this->contentType = $pcontentType;
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$this->linkArray = $plinkArray;
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if ($config['cops_show_icons'] == 1)
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{
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foreach (self::$icons as $reg => $image)
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{
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if (preg_match ("/" . $reg . "/", $pid)) {
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array_push ($this->linkArray, new Link (getUrlWithVersion ($image), "image/png", Link::OPDS_THUMBNAIL_TYPE));
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break;
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}
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}
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}
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}
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}
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class EntryBook extends Entry
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{
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public $book;
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public function __construct($ptitle, $pid, $pcontent, $pcontentType, $plinkArray, $pbook) {
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parent::__construct ($ptitle, $pid, $pcontent, $pcontentType, $plinkArray);
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$this->book = $pbook;
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$this->localUpdated = $pbook->timestamp;
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}
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public function getCoverThumbnail () {
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foreach ($this->linkArray as $link) {
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if ($link->rel == Link::OPDS_THUMBNAIL_TYPE)
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return $link->hrefXhtml ();
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}
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return null;
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}
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public function getCover () {
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foreach ($this->linkArray as $link) {
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if ($link->rel == Link::OPDS_IMAGE_TYPE)
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return $link->hrefXhtml ();
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}
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return null;
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}
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}
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class Page
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{
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public $title;
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public $subtitle = "";
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public $idPage;
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public $idGet;
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public $query;
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public $favicon;
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public $n;
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public $totalNumber = -1;
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public $entryArray = array();
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public static function getPage ($pageId, $id, $query, $n)
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{
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switch ($pageId) {
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case Base::PAGE_ALL_AUTHORS :
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return new PageAllAuthors ($id, $query, $n);
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case Base::PAGE_AUTHORS_FIRST_LETTER :
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return new PageAllAuthorsLetter ($id, $query, $n);
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case Base::PAGE_AUTHOR_DETAIL :
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return new PageAuthorDetail ($id, $query, $n);
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case Base::PAGE_ALL_TAGS :
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return new PageAllTags ($id, $query, $n);
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case Base::PAGE_TAG_DETAIL :
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return new PageTagDetail ($id, $query, $n);
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case Base::PAGE_ALL_SERIES :
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return new PageAllSeries ($id, $query, $n);
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case Base::PAGE_ALL_BOOKS :
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return new PageAllBooks ($id, $query, $n);
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case Base::PAGE_ALL_BOOKS_LETTER:
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return new PageAllBooksLetter ($id, $query, $n);
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case Base::PAGE_ALL_RECENT_BOOKS :
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return new PageRecentBooks ($id, $query, $n);
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case Base::PAGE_SERIE_DETAIL :
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return new PageSerieDetail ($id, $query, $n);
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case Base::PAGE_OPENSEARCH_QUERY :
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return new PageQueryResult ($id, $query, $n);
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case Base::PAGE_BOOK_DETAIL :
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return new PageBookDetail ($id, $query, $n);
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default:
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$page = new Page ($id, $query, $n);
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$page->idPage = "cops:catalog";
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return $page;
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}
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}
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public function __construct($pid, $pquery, $pn) {
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global $config;
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$this->idGet = $pid;
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$this->query = $pquery;
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$this->n = $pn;
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$this->favicon = $config['cops_icon'];
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}
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public function InitializeContent ()
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{
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global $config;
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$this->title = $config['cops_title_default'];
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$this->subtitle = $config['cops_subtitle_default'];
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array_push ($this->entryArray, Author::getCount());
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array_push ($this->entryArray, Serie::getCount());
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array_push ($this->entryArray, Tag::getCount());
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$this->entryArray = array_merge ($this->entryArray, Book::getCount());
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}
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public function isPaginated ()
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{
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global $config;
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return ($config['cops_max_item_per_page'] != -1 &&
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$this->totalNumber != -1 &&
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$this->totalNumber > $config['cops_max_item_per_page']);
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}
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public function getNextLink ()
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{
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global $config;
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$currentUrl = $_SERVER['QUERY_STRING'];
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$currentUrl = preg_replace ("/\&n=.*?$/", "", "?" . $_SERVER['QUERY_STRING']);
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if (($this->n) * $config['cops_max_item_per_page'] < $this->totalNumber) {
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return new LinkNavigation ($currentUrl . "&n=" . ($this->n + 1), "next", "Page suivante");
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}
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return NULL;
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}
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public function getPrevLink ()
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{
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global $config;
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$currentUrl = $_SERVER['QUERY_STRING'];
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$currentUrl = preg_replace ("/\&n=.*?$/", "", "?" . $_SERVER['QUERY_STRING']);
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if ($this->n > 1) {
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return new LinkNavigation ($currentUrl . "&n=" . ($this->n - 1), "previous", "Page precedente");
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}
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return NULL;
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}
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public function getMaxPage ()
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{
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global $config;
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return ceil ($this->totalNumber / $config['cops_max_item_per_page']);
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}
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public function containsBook ()
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{
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if (count ($this->entryArray) == 0) return false;
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if (get_class ($this->entryArray [1]) == "EntryBook") return true;
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return false;
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}
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}
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class PageAllAuthors extends Page
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{
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public function InitializeContent ()
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{
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global $config;
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$this->title = localize("authors.title");
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if ($config['cops_author_split_first_letter'] == 1) {
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$this->entryArray = Author::getAllAuthorsByFirstLetter();
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}
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else {
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$this->entryArray = Author::getAllAuthors();
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}
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$this->idPage = Author::ALL_AUTHORS_ID;
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}
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}
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class PageAllAuthorsLetter extends Page
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{
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public function InitializeContent ()
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{
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global $config;
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$this->idPage = Author::getEntryIdByLetter ($this->idGet);
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$this->entryArray = Author::getAuthorsByStartingLetter ($this->idGet);
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$this->title = str_format (localize ("splitByLetter.letter"), str_format (localize ("authorword", count ($this->entryArray)), count ($this->entryArray)), $this->idGet);
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}
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}
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class PageAuthorDetail extends Page
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{
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public function InitializeContent ()
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{
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$author = Author::getAuthorById ($this->idGet);
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$this->idPage = $author->getEntryId ();
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$this->title = $author->name;
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list ($this->entryArray, $this->totalNumber) = Book::getBooksByAuthor ($this->idGet, $this->n);
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}
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}
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class PageAllTags extends Page
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{
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public function InitializeContent ()
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{
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$this->title = localize("tags.title");
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$this->entryArray = Tag::getAllTags();
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$this->idPage = Tag::ALL_TAGS_ID;
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}
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}
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class PageTagDetail extends Page
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{
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public function InitializeContent ()
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{
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$tag = Tag::getTagById ($this->idGet);
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$this->idPage = $tag->getEntryId ();
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$this->title = $tag->name;
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list ($this->entryArray, $this->totalNumber) = Book::getBooksByTag ($this->idGet, $this->n);
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}
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}
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class PageAllSeries extends Page
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{
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public function InitializeContent ()
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{
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$this->title = localize("series.title");
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$this->entryArray = Serie::getAllSeries();
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$this->idPage = Serie::ALL_SERIES_ID;
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}
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}
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class PageSerieDetail extends Page
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{
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public function InitializeContent ()
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{
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$serie = Serie::getSerieById ($this->idGet);
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$this->title = $serie->name;
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list ($this->entryArray, $this->totalNumber) = Book::getBooksBySeries ($this->idGet, $this->n);
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$this->idPage = $serie->getEntryId ();
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}
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}
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class PageAllBooks extends Page
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{
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public function InitializeContent ()
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{
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$this->title = localize ("allbooks.title");
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$this->entryArray = Book::getAllBooks ();
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$this->idPage = Book::ALL_BOOKS_ID;
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}
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}
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class PageAllBooksLetter extends Page
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{
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public function InitializeContent ()
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{
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list ($this->entryArray, $this->totalNumber) = Book::getBooksByStartingLetter ($this->idGet, $this->n);
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$this->idPage = Book::getEntryIdByLetter ($this->idGet);
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$count = $this->totalNumber;
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if ($count == -1)
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$count = count ($this->entryArray);
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$this->title = str_format (localize ("splitByLetter.letter"), str_format (localize ("bookword", $count), $count), $this->idGet);
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}
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}
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class PageRecentBooks extends Page
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{
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public function InitializeContent ()
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{
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$this->title = localize ("recent.title");
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$this->entryArray = Book::getAllRecentBooks ();
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$this->idPage = Book::ALL_RECENT_BOOKS_ID;
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}
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}
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class PageQueryResult extends Page
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{
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public function InitializeContent ()
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{
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$this->title = "Search result for query *" . $this->query . "*"; // TODO I18N
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list ($this->entryArray, $this->totalNumber) = Book::getBooksByQuery ($this->query, $this->n);
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}
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}
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class PageBookDetail extends Page
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{
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public function InitializeContent ()
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{
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$book = Book::getBookById ($this->idGet);
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$this->title = $book->title;
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}
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}
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abstract class Base
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{
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const PAGE_INDEX = "index";
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const PAGE_ALL_AUTHORS = "1";
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const PAGE_AUTHORS_FIRST_LETTER = "2";
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const PAGE_AUTHOR_DETAIL = "3";
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const PAGE_ALL_BOOKS = "4";
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const PAGE_ALL_BOOKS_LETTER = "5";
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const PAGE_ALL_SERIES = "6";
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const PAGE_SERIE_DETAIL = "7";
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const PAGE_OPENSEARCH = "8";
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const PAGE_OPENSEARCH_QUERY = "9";
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const PAGE_ALL_RECENT_BOOKS = "10";
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const PAGE_ALL_TAGS = "11";
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const PAGE_TAG_DETAIL = "12";
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const PAGE_BOOK_DETAIL = "13";
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const COMPATIBILITY_XML_ALDIKO = "aldiko";
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private static $db = NULL;
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public static function getDbFileName () {
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global $config;
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return $config['calibre_directory'] .'metadata.db';
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}
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public static function getDb () {
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global $config;
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if (is_null (self::$db)) {
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try {
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self::$db = new PDO('sqlite:'. self::getDbFileName ());
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} catch (Exception $e) {
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header("location: checkconfig.php?err=1");
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exit();
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}
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}
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return self::$db;
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}
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public static function executeQuery($query, $columns, $filter, $params, $n) {
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global $config;
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$totalResult = -1;
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if ($config['cops_max_item_per_page'] != -1 && $n != -1)
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{
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// First check total number of results
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$result = self::getDb ()->prepare (str_format ($query, "count(*)", $filter));
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$result->execute ($params);
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$totalResult = $result->fetchColumn ();
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// Next modify the query and params
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$query .= " limit ?, ?";
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array_push ($params, ($n - 1) * $config['cops_max_item_per_page'], $config['cops_max_item_per_page']);
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}
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$result = self::getDb ()->prepare(str_format ($query, $columns, $filter));
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$result->execute ($params);
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return array ($totalResult, $result);
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}
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}
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?>
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