LDAPAccountManager/lam/lib/pdf.inc

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<?php
/*
$Id$
This code is part of LDAP Account Manager (http://www.sourceforge.net/projects/lam)
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Copyright (C) 2003 - 2006 Michael Duergner
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
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/**
* LDAP Account Manager PDF printing library. It consists of lamPDF class,
* the createModulePDF() function that may be called by other pages
* and furthermore some helper functions.
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*
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* @author Michael Duergner
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* @package PDF
*/
/** PDF line width */
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define('LAMPDF_LINEWIDTH',190);
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/** XML functions */
include_once('xml_parser.inc');
/** access to PDF configuration files */
include_once('pdfstruct.inc');
$key = false;
$line_width = LAMPDF_LINEWIDTH;
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/**
* This function creates the PDF output of one or more accounts. At the moment
* this function can create a PDF page for user, group and host accounts. But
* this is not limited by the function itself but by the account types that are
* allowed in LAM and the exsisting PDF structure definitions.
*
* @param array $accounts A numbered array containing all accounts the PDF page should
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* be created for. The entries of the array must be AccountContainer objects.
* @param string $pdf_structure The filename of the structure definition that should be used
* to create the PDF page. If not submitted the 'default.user' structure definition
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* for the appropriate account type.
*/
function createModulePDF($accounts,$pdf_structure="default") {
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/** PDF generator class */
include_once("fpdf.php");
/** Unicode support for FPDF */
include_once("ufpdf.php");
/** LAM PDF generator class */
include_once("lamPDF.inc");
global $key;
// Get account type from account container if none was specified or
// if it is different to the submitted or previous stored
if($account_type == "" || $account_type != $accounts[0]->get_type()) {
$account_type = $accounts[0]->get_type();
}
// Get PDF structure from xml file
$load = loadPDFStructureDefinitions($account_type,$pdf_structure);
$structure = $load['structure'];
// The decimal separator must be a dot in order to write pdf-files
setlocale(LC_NUMERIC, "C");
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$fontName = "BitstreamVeraSans-Roman"; // TODO: load font name from XML file
// Create a new PDF file acording to the account type
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$pdf = new LamPDF($account_type,$load['page_definitions'],$fontName);
// Loop over each account and add a new page in the PDF file for it
foreach($accounts as $account) {
// Start a new page for each account
$pdf->AddPage();
// Get PDF entries for the current account
$entries = $account->get_pdfEntries();
// Now create the PDF file acording to the structure with the submitted values
foreach($structure as $entry) {
// We have a new section to start
if($entry['tag'] == "SECTION" && $entry['type'] == "open") {
$name = $entry['attributes']['NAME'];
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if(preg_match("/^_[a-zA-Z_]+/",$name)) {
$section_headline = getSectionHeadline($entries[substr($name,1)][0]);
}
else {
$section_headline = $name;
}
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$pdf->setFont($fontName,"B",10);
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$pdf->Write(0,$section_headline . ":");
$pdf->Ln(6);
}
// We have a section to end
elseif($entry['tag'] == "SECTION" && $entry['type'] == "close") {
$pdf->Ln(9);
}
// We have to include a static text.
elseif($entry['tag'] == "TEXT") {
// Load PDF text from structure array
$info_string = $entry['value'];
// Set font for text
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$pdf->setFont($fontName,"",10);
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$pdf->MultiCell(0,5,$info_string,0,"L",0);
// Print linebreak afterwards
$pdf->Ln(6);
}
// We have to include an entry from the account
elseif($entry['tag'] == "ENTRY") {
// Get name of current entry
$name = $entry['attributes']['NAME'];
// Get current entry
$value_entry = $entries[$name];
// Print entry only when module sumitted values for it
if(is_array($value_entry)) {
// Loop over all rows of this entry (most of the time this will be just one)
foreach($value_entry as $line) {
// Substitue XML syntax with valid FPDF methods
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$methods = processLine($line,true,$fontName);
// Call every method
foreach($methods as $method) {
call_user_func_array(array(&$pdf,$method[0]),$method[1]);
}
}
}
$key = false;
}
}
}
// Close PDF
$pdf->Close();
// Get relative url path
$fullpath = realpath('.');
$subdirs = explode('/', str_replace($_SESSION['lampath'], '', $fullpath));
for ($i=0; $i<count($subdirs); $i++ ) $filename .= '../';
// use timestamp and random number from ldap.inc as filename so it should be unique.
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$filename .= 'tmp/' . $_SESSION['ldap']->new_rand() . time() .'.pdf';
// Save PDF
$pdf->Output($filename);
// Output meta refresh to pdf-file
metaRefresh($filename);
// Return relative path of pdf-file
return $filename;
}
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/**
* Creates a section headline.
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*
* @param string $line section name
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*
* @return string XML code for headline
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*/
function getSectionHeadline($line) {
$headline_pattern = '/<block>.*<value>(.*)<\/value><\/block>/';
if(preg_match($headline_pattern,$line,$matches)) {
$valueStyle = processFormatTags($matches[1],'');
return $valueStyle[1];
}
else {
return '';
}
}
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/**
* Creates the XML code for an PDF entry.
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*
* @param string $line XML code of PDF entry
* @param boolean $first_td True if this is the first column
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*
* @return array XML codes
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*/
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function processLine($line,$first_td = true, $fontName) {
global $key, $line_width;
// PCRE matching <block> tag
$block_pattern = '/<block><\/block>/';
// PCRE matching a <key> tag
$key_pattern = '/(<block>)<key>(.+)<\/key>(.*<\/block>)/';
// PCRE matching a <value> tag
// !!FIXME!! value must contain at least one character
$value_pattern = '/(<block>.*)<value>(.*)<\/value>(<\/block>)/';
// PCRE matching a <td> tag
$td_pattern = '/(<block>.*?)<td(.*?)>(.+?)<\/td>(.*<\/block>)/';
// PCRE matching <tr> tag
$tr_pattern = '/<tr><\/tr>/';
// PCRE matching a <p> tag
$p_pattern = '/(<block>.*)<p>(.+)<\/p>(.*<\/block>)/';
// PCRE matching a <br> tag
$br_pattern = '/<br \/>/';
$return = array();
if(preg_match($key_pattern,$line,$matches)) {
$key = true;
$line_width = $line_width - 50;
$format = processFormatTags($matches[2],'B');
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$return[] = array('setFont',array($fontName,$format[0],7));
$return[] = array('Cell',array(50,5,$format[1] . ':',0,0,'R',0));
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$return[] = array('setFont',array($fontName,'',7));
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return array_merge($return,processLine($matches[1] . $matches[3],false,$fontName));
}
elseif(preg_match($value_pattern,$line,$matches)) {
$format = processFormatTags($matches[2],'');
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$return[] = array('setFont',array($fontName,$format[0],7));
$return[] = array('MultiCell',array(0,5,$format[1],0,'L',0));
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$return[] = array('setFont',array($fontName,'',7));
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return array_merge($return,processLine($matches[1] . $matches[3],true,$fontName));
}
elseif(preg_match($p_pattern,$line,$matches)) {
$format = processFormatTags($matches[2],'');
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$return[] = array('setFont',array($fontName,$format[0],7));
$return[] = array('Write',array(5,$format[1]));
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$return[] = array('setFont',array($fontName,'',7));
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return array_merge($return,processLine($matches[1] . $matches[3],true,$fontName));
}
elseif(preg_match($td_pattern,$line,$matches)) {
if($first_td && $key) {
$first_td = !$first_td;
$return[] = array('Cell',array(50,5,'',0,0,'L',0));
}
$format = processFormatTags($matches[3],'');
$attrs = processAttributes($matches[2],array('width' => $line_width,'height' => 5,'align' => 'L'));
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$return[] = array('setFont',array($fontName,$format[0],7));
$return[] = array('Cell',array($attrs['width'],$attrs['height'],$format[1],0,0,$attrs['align'],0));
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$return[] = array('setFont',array($fontName,'',7));
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return array_merge($return,processLine($matches[1] . $matches[4],$first_td,$fontName));
}
elseif(preg_match($br_pattern,$line,$matches)) {
return array(array('Ln',array(5)));
}
elseif(preg_match($block_pattern,$line,$matches)) {
$line_width = LAMPDF_LINEWIDTH;
return array();
}
elseif(preg_match($tr_pattern,$line,$matches)) {
$line_width = LAMPDF_LINEWIDTH;
return array(array('Ln',array(5)));
}
}
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/**
* Formats the XML code.
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*
* @param string $line XML code of PDF entry
* @param string $style style commands
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*
* @return array XML code
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*/
function processFormatTags($line,$style) {
// PCRE matching a <i> tag
$i_pattern = '/(.*)<i>(.+)<\/i>(.*)/';
// PCRE matching a <b> tag
$b_pattern = '/(.*)<b>(.+)<\/b>(.*)/';
// PCRE matching a <u> tag
$u_pattern = '/(.*)<u>(.+)<\/u>(.*)/';
// Replacement pattern when one of the above pattern matched
$replace = "\$1\$2\$3";
if(preg_match($i_pattern,$line,$matches)) {
$style .= "I";
$line = preg_replace($i_pattern,$replace,$line);
}
if(preg_match($b_pattern,$line,$matches)) {
$style .= "B";
$line = preg_replace($b_pattern,$replace,$line);
}
if(preg_match($u_pattern,$line,$matches)) {
$style .= "U";
$line = preg_replace($u_pattern,$replace,$line);
}
return array($style,$line);
}
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/**
* Processes width, height and alignment attributes.
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*
* @param string $attrs attributes
* @param array $return XML code
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*
* @return array XML code
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*/
function processAttributes($attrs,$return = array()) {
global $line_width;
// PCRE matching width attribute
$width_pattern = '/(.*)width\=\"(\\d+)(\%?)\"(.*)/';
// PCRE matching height attribute
$height_pattern = '/(.*)height\=\"(\\d+)\"(.*)/';
// PCRE matching align attribute
$align_pattern = '/(.*)align\=\"(L|R|C)\"(.*)/';
// Remove leading and trailing whitespaces
$attrs = trim($attrs);
if(preg_match($width_pattern,$attrs,$matches)) {
if($matches[3] == '%') {
$return['width'] = ceil($line_width * $matches[2] / 100);
}
else {
$return['width'] = ceil($matches[2]);
}
return processAttributes($matches[1] . $matches[4],$return);
}
elseif(preg_match($height_pattern,$attrs,$matches)) {
$return['height'] = $matches[2];
return processAttributes($matches[1] . $matches[3],$return);
}
elseif(preg_match($align_pattern,$attrs,$matches)) {
$return['align'] = $matches[2];
return processAttributes($matches[1] . $matches[3],$return);
}
else {
return $return;
}
}