Primer commit del sistema avantika sin cambios

2026-01-06 19:42:24 -06:00
commit 3ae4be5957
7127 changed files with 440072 additions and 0 deletions
--- a/pdf/include/page_cache.cls.php
+++ b/pdf/include/page_cache.cls.php
@@ -0,0 +1,159 @@
+<?php
+/**
+ * DOMPDF - PHP5 HTML to PDF renderer
+ *
+ * File: $RCSfile: page_cache.cls.php,v $
+ * Created on: 2004-07-23
+ *
+ * Copyright (c) 2004 - Benj Carson <benjcarson@digitaljunkies.ca>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library in the file LICENSE.LGPL; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307 USA
+ *
+ * Alternatively, you may distribute this software under the terms of the
+ * PHP License, version 3.0 or later.  A copy of this license should have
+ * been distributed with this file in the file LICENSE.PHP .  If this is not
+ * the case, you can obtain a copy at http://www.php.net/license/3_0.txt.
+ *
+ * The latest version of DOMPDF might be available at:
+ * http://www.dompdf.com/
+ *
+ * @link http://www.dompdf.com/
+ * @copyright 2004 Benj Carson
+ * @author Benj Carson <benjcarson@digitaljunkies.ca>
+ * @package dompdf
+
+ */
+
+/* $Id: page_cache.cls.php 216 2010-03-11 22:49:18Z ryan.masten $ */
+
+/**
+ * Caches individual rendered PDF pages
+ *
+ * Not totally implmented yet.  Use at your own risk ;)
+ * 
+ * @access private
+ * @package dompdf
+ * @static
+ */
+class Page_Cache {
+
+  const DB_USER = "dompdf_page_cache";
+  const DB_PASS = "some meaningful password";
+  const DB_NAME = "dompdf_page_cache";
+  
+  static private $__connection = null;
+  
+  function init() {
+    if ( is_null(self::$__connection) ) {
+      $con_str = "host=" . DB_HOST .
+        " dbname=" . self::DB_NAME .
+        " user=" . self::DB_USER .
+        " password=" . self::DB_PASS;
+      
+      if ( !self::$__connection = pg_connect($con_str) )
+        throw new Exception("Database connection failed.");
+    }
+  }
+  
+  function __construct() { throw new Exception("Can not create instance of Page_Class.  Class is static."); }
+
+  private static function __query($sql) {
+    if ( !($res = pg_query(self::$__connection, $sql)) )
+      throw new Exception(pg_last_error(self::$__connection));
+    return $res;
+  }
+  
+  static function store_page($id, $page_num, $data) {
+    $where = "WHERE id='" . pg_escape_string($id) . "' AND ".
+      "page_num=". pg_escape_string($page_num);
+
+    $res = self::__query("SELECT timestamp FROM page_cache ". $where);
+
+    $row = pg_fetch_assoc($res);
+    
+    if ( $row ) 
+      self::__query("UPDATE page_cache SET data='" . pg_escape_string($data) . "' " . $where);
+    else 
+      self::__query("INSERT INTO page_cache (id, page_num, data) VALUES ('" . pg_escape_string($id) . "', ".
+                     pg_escape_string($page_num) . ", ".
+                     "'". pg_escape_string($data) . "')");
+
+  }
+
+  static function store_fonts($id, $fonts) {
+    self::__query("BEGIN");
+    // Update the font information
+    self::__query("DELETE FROM page_fonts WHERE id='" . pg_escape_string($id) . "'");
+
+    foreach (array_keys($fonts) as $font)
+      self::__query("INSERT INTO page_fonts (id, font_name) VALUES ('" .
+                    pg_escape_string($id) . "', '" . pg_escape_string($font) . "')");
+    self::__query("COMMIT");
+  }
+  
+//   static function retrieve_page($id, $page_num) {
+
+//     $res = self::__query("SELECT data FROM page_cache WHERE id='" . pg_escape_string($id) . "' AND ".
+//                           "page_num=". pg_escape_string($page_num));
+
+//     $row = pg_fetch_assoc($res);
+
+//     return pg_unescape_bytea($row["data"]);
+    
+//   }
+
+  static function get_page_timestamp($id, $page_num) {
+    $res = self::__query("SELECT timestamp FROM page_cache WHERE id='" . pg_escape_string($id) . "' AND ".
+                          "page_num=". pg_escape_string($page_num));
+
+    $row = pg_fetch_assoc($res);
+
+    return $row["timestamp"];
+    
+  }
+
+  // Adds the cached document referenced by $id to the provided pdf
+  static function insert_cached_document(CPDF_Adapter $pdf, $id, $new_page = true) {
+    $res = self::__query("SELECT font_name FROM page_fonts WHERE id='" . pg_escape_string($id) . "'");
+
+    // Ensure that the fonts needed by the cached document are loaded into
+    // the pdf
+    while ($row = pg_fetch_assoc($res)) 
+      $pdf->get_cpdf()->selectFont($row["font_name"]);
+    
+    $res = self::__query("SELECT data FROM page_cache WHERE id='" . pg_escape_string($id) . "'");
+
+    if ( $new_page )
+      $pdf->new_page();
+
+    $first = true;
+    while ($row = pg_fetch_assoc($res)) {
+
+      if ( !$first ) 
+        $pdf->new_page();
+      else 
+        $first = false;        
+      
+      $page = $pdf->reopen_serialized_object($row["data"]);
+      //$pdf->close_object();
+      $pdf->add_object($page, "add");
+
+    }
+      
+  }
+}
+
+Page_Cache::init();