mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-17 13:33:15 +01:00
285 lines
8.6 KiB
PHP
285 lines
8.6 KiB
PHP
<?php
|
|
/**************************************************************************\
|
|
* eGroupWare API - Palm Database Access *
|
|
* This file written by Miles Lott <milos@groupwhere.org> *
|
|
* Access to palm OS database structures (?) *
|
|
* -------------------------------------------------------------------------*
|
|
* Portions of code from ToPTIP *
|
|
* Copyright (C) 2000-2001 Pierre Dittgen *
|
|
* This file is a translation of the txt2pdbdoc tool *
|
|
* written in C Paul J. Lucas (plj@best.com) *
|
|
* -------------------------------------------------------------------------*
|
|
* This library may be part of the eGroupWare API *
|
|
* ------------------------------------------------------------------------ *
|
|
* 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 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; if not, write to the Free Software Foundation, *
|
|
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
|
|
\**************************************************************************/
|
|
|
|
/* $Id$ */
|
|
|
|
// ONLY THE FETCH FUNCTION SHOULD BE CALLED AT THIS TIME:
|
|
// $pdb = CreateObject('addressbook.pdb');
|
|
// $pdb->fetch($content, $title, $document);
|
|
//
|
|
// This will force a download of the pdb file.
|
|
//
|
|
// READ DOES NOT WORK
|
|
// FORMAT OF FILE IS A DOC, NOT A TRUE PALM ADDRESS BOOK
|
|
class pdb
|
|
{
|
|
var $record_size = 4096; // Size of text record
|
|
var $pdb_header_size = 78; // Size of the file header (don't touch!)
|
|
var $pdb_record_header_size = 8; // Size of a text record header (don't touch either!)
|
|
|
|
/**
|
|
* Convert a integer value to a two bytes value string
|
|
*/
|
|
function int2($value)
|
|
{
|
|
return sprintf("%c%c", $value / 256, $value % 256);
|
|
}
|
|
|
|
/**
|
|
* Convert a integer value to a four bytes value string
|
|
*/
|
|
function int4($value)
|
|
{
|
|
for ($i=0; $i<4; $i++)
|
|
{
|
|
$b[$i] = $value % 256;
|
|
$value = (int)(($value - $b[$i]) / 256);
|
|
}
|
|
return sprintf("%c%c%c%c", $b[3], $b[2], $b[1], $b[0]);
|
|
}
|
|
|
|
/**
|
|
* Writes the header of the pdb file containing the title of the document
|
|
* and different parameters including its size
|
|
*/
|
|
function write_header($fd, $title, $content_length)
|
|
{
|
|
// ============ File header =========================================
|
|
// Title of the document, it's limited to 31 characters
|
|
if (strlen($title) > 31)
|
|
{
|
|
$title = substr($title, 0, 31);
|
|
}
|
|
fwrite($fd, $title);
|
|
|
|
// Completion with null '\0' characters
|
|
for ($i=0; $i<32-strlen($title); $i++)
|
|
{
|
|
fwrite($fd, sprintf("%c", 0), 1);
|
|
}
|
|
|
|
// attributes & version fields
|
|
fwrite($fd, $this->int2(0));
|
|
fwrite($fd, $this->int2(0));
|
|
|
|
// create & modify time
|
|
fwrite($fd, sprintf("%c%c%c%c", 6, 209, 68, 174), 4);
|
|
fwrite($fd, sprintf("%c%c%c%c", 6, 209, 68, 174), 4);
|
|
|
|
// backup time, modification number, app Info Id, sort info Id
|
|
fwrite($fd, $this->int4(0));
|
|
fwrite($fd, $this->int4(0));
|
|
fwrite($fd, $this->int4(0));
|
|
fwrite($fd, $this->int4(0));
|
|
|
|
// Type & creator
|
|
fwrite($fd, 'TEXt', 4);
|
|
fwrite($fd, 'REAd', 4);
|
|
|
|
// Id seed & next record list
|
|
fwrite($fd, $this->int4(0));
|
|
fwrite($fd, $this->int4(0));
|
|
|
|
// Number of text records
|
|
$full_tr = (int)($content_length / $this->record_size);
|
|
$notfull_tr = $content_length % $this->record_size;
|
|
$num_records = $full_tr;
|
|
if ($notfull_tr != 0)
|
|
{
|
|
$num_records++;
|
|
}
|
|
|
|
// + 1 cause of record 0
|
|
fwrite($fd, $this->int2($num_records + 1));
|
|
|
|
// From here...
|
|
$num_offsets = $num_records + 1;
|
|
$offset = $this->pdb_header_size + $this->pdb_record_header_size * $num_offsets;
|
|
$index = 0x40 << 24 | 0x6F8000; // Why not!
|
|
|
|
fwrite($fd, $this->int4($offset));
|
|
fwrite($fd, $this->int4($index++));
|
|
|
|
$val = 110 + ($num_offsets - 2) * 8;
|
|
while (--$num_offsets != 0)
|
|
{
|
|
fwrite($fd, $this->int4($val));
|
|
$val += 4096;
|
|
fwrite($fd, $this->int4($index++));
|
|
}
|
|
// To here
|
|
// Don't ask me how it works ;-)
|
|
|
|
// ====== Write record 0 ============
|
|
fwrite($fd, $this->int2(1)); // Version
|
|
fwrite($fd, $this->int2(0)); // Reserved1
|
|
fwrite($fd, $this->int4($content_length)); // doc size
|
|
fwrite($fd, $this->int2($num_records)); // num records
|
|
fwrite($fd, $this->int2($this->record_size)); // record size
|
|
fwrite($fd, $this->int4(0)); // Reserved2
|
|
|
|
}
|
|
|
|
/**
|
|
* Writes the given text, title on the given file descriptor
|
|
* Note: It's saved as uncompressed doc
|
|
* Note2: File descriptor is not closed at the end of the function
|
|
*/
|
|
function write($fd, $content, $title)
|
|
{
|
|
// Write header
|
|
$this->write_header($fd, $title, strlen($content));
|
|
|
|
// Write content
|
|
fwrite($fd, $content);
|
|
|
|
// And flushes all
|
|
flush($fd);
|
|
}
|
|
|
|
/**
|
|
* Reads the header of the pdb file
|
|
* and different parameters including its size
|
|
*/
|
|
function read_header($fd)
|
|
{
|
|
// ============ File header =========================================
|
|
// Title of the document, it's limited to 31 characters
|
|
$title = fread(31,$fd);
|
|
|
|
// Completion with null '\0' characters
|
|
for ($i=0; $i<32-strlen($title); $i++)
|
|
{
|
|
fwrite($fd, sprintf("%c", 0), 1);
|
|
}
|
|
|
|
// attributes & version fields
|
|
fwrite($fd, $this->int2(0));
|
|
fwrite($fd, $this->int2(0));
|
|
|
|
// create & modify time
|
|
fwrite($fd, sprintf("%c%c%c%c", 6, 209, 68, 174), 4);
|
|
fwrite($fd, sprintf("%c%c%c%c", 6, 209, 68, 174), 4);
|
|
|
|
// backup time, modification number, app Info Id, sort info Id
|
|
fwrite($fd, $this->int4(0));
|
|
fwrite($fd, $this->int4(0));
|
|
fwrite($fd, $this->int4(0));
|
|
fwrite($fd, $this->int4(0));
|
|
|
|
// Type & creator
|
|
fwrite($fd, 'TEXt', 4);
|
|
fwrite($fd, 'REAd', 4);
|
|
|
|
// Id seed & next record list
|
|
fwrite($fd, $this->int4(0));
|
|
fwrite($fd, $this->int4(0));
|
|
|
|
// Number of text records
|
|
$full_tr = (int)($content_length / $this->record_size);
|
|
$notfull_tr = $content_length % $this->record_size;
|
|
$num_records = $full_tr;
|
|
if ($notfull_tr != 0)
|
|
{
|
|
$num_records++;
|
|
}
|
|
|
|
// + 1 cause of record 0
|
|
fwrite($fd, $this->int2($num_records + 1));
|
|
|
|
// From here...
|
|
$num_offsets = $num_records + 1;
|
|
$offset = $this->pdb_header_size + $this->pdb_record_header_size * $num_offsets;
|
|
$index = 0x40 << 24 | 0x6F8000; // Why not!
|
|
|
|
fwrite($fd, $this->int4($offset));
|
|
fwrite($fd, $this->int4($index++));
|
|
|
|
$val = 110 + ($num_offsets - 2) * 8;
|
|
while (--$num_offsets != 0)
|
|
{
|
|
fwrite($fd, $this->int4($val));
|
|
$val += 4096;
|
|
fwrite($fd, $this->int4($index++));
|
|
}
|
|
// To here
|
|
// Don't ask me how it works ;-)
|
|
|
|
// ====== Write record 0 ============
|
|
fwrite($fd, $this->int2(1)); // Version
|
|
fwrite($fd, $this->int2(0)); // Reserved1
|
|
fwrite($fd, $this->int4($content_length)); // doc size
|
|
fwrite($fd, $this->int2($num_records)); // num records
|
|
fwrite($fd, $this->int2($this->record_size)); // record size
|
|
fwrite($fd, $this->int4(0)); // Reserved2
|
|
}
|
|
|
|
/**
|
|
* Reads a pdb from the given file descriptor
|
|
* Note2: File descriptor is not closed at the end of the function
|
|
*/
|
|
function read($fd)
|
|
{
|
|
// Read header
|
|
$header = $this->read_header($fd);
|
|
|
|
// Read content
|
|
$content = fread($fd);
|
|
|
|
// And flushes all
|
|
flush($fd);
|
|
}
|
|
|
|
/**
|
|
* Creates a palmdoc and force the user to download it
|
|
*/
|
|
function fetch($content, $title, $document)
|
|
{
|
|
// Creates a temp file to put the current doc
|
|
$tempfile = tempnam(".", "palm");
|
|
|
|
// Creates the doc from the content
|
|
$fd = fopen($tempfile, 'w');
|
|
$this->write($fd, $content, $title);
|
|
fclose($fd);
|
|
|
|
// Forces the download
|
|
header("Content-Type: application/force-download");
|
|
header("Content-Disposition: attachment; filename=\"$document\"");
|
|
|
|
// And writes the file content on stdout
|
|
$fd = fopen("$tempfile", 'r');
|
|
$content = fread($fd, filesize($tempfile));
|
|
fclose($fd);
|
|
print($content);
|
|
|
|
// Cleaning
|
|
unlink($tempfile);
|
|
exit;
|
|
}
|
|
}
|
|
?>
|