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chamilo-lms
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Fix absolute image paths when exporting docs/certs to pdf - refs BT#13856

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pull/2458/head
Angel Fernando Quiroz Campos 8 years ago
parent cfac7f38ee
commit ef44f61a2f
1 changed files with 101 additions and 76 deletions
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  1. 177
      main/inc/lib/pdf.lib.php

177
main/inc/lib/pdf.lib.php
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@ -298,7 +298,6 @@ class PDF
if (!empty($course_data['path'])) { if (!empty($course_data['path'])) {
$document_html = str_replace('../', '', $document_html); $document_html = str_replace('../', '', $document_html);
$document_path = api_get_path(SYS_COURSE_PATH).$course_data['path'].'/document/';
// Fix app/upload links convert web to system paths // Fix app/upload links convert web to system paths
$document_html = str_replace( $document_html = str_replace(
@ -306,83 +305,9 @@ class PDF
api_get_path(SYS_UPLOAD_PATH), api_get_path(SYS_UPLOAD_PATH),
$document_html $document_html
); );
$doc = new DOMDocument();
$result = @$doc->loadHTML($document_html);
// Fixing only images @todo do the same thing with other elements
$elements = $doc->getElementsByTagName('img');
$protocol = api_get_protocol();
if (!empty($elements)) {
foreach ($elements as $item) {
$old_src = $item->getAttribute('src');
$old_src = trim($old_src);
if (strpos($old_src, $protocol) === false) {
if (strpos($old_src, '/main/default_course_document') === false) {
$old_src_fixed = '';
if (strpos($old_src, '/main/img') === false) {
if (api_get_path(REL_PATH) != '/') {
$old_src_fixed = str_replace(
api_get_path(REL_PATH).'courses/'.$course_data['path'].'/document/',
'',
$old_src
);
// Try with the dirname if exists
if ($old_src_fixed == $old_src) {
if (file_exists($dirName.'/'.$old_src)) {
$document_path = '';
$old_src_fixed = $dirName.'/'.$old_src;
}
}
} else {
if (strpos($old_src, 'courses/'.$course_data['path'].'/document/') !== false) {
$old_src_fixed = str_replace('courses/'.$course_data['path'].'/document/', '', $old_src);
} else {
// Try with the dirname if exists
if (file_exists($dirName.'/'.$old_src)) {
$document_path = '';
$old_src_fixed = $dirName.'/'.$old_src;
} else {
$document_path = '';
$old_src_fixed = $old_src;
}
}
}
$new_path = $document_path.$old_src_fixed;
} else {
$new_path = str_replace(
'/main/img/',
api_get_path(SYS_CODE_PATH).'img/',
$old_src
);
}
$item->setAttribute('src', $new_path);
} else {
$new_path = str_replace(
'/main/default_course_document',
api_get_path(SYS_CODE_PATH).'default_course_document',
$old_src
);
$item->setAttribute('src', $new_path);
}
} else {
//Check if this is a complete URL
/*if (strpos($old_src, 'courses/'.$course_data['path'].'/document/') === false) {
} else {
$old_src_fixed = str_replace(api_get_path(SYS_COURSE_PATH).$course_data['path'].'/document/', '', $old_src);
$new_path = $document_path.$old_src_fixed;
$document_html= str_replace($old_src, $new_path, $document_html);
}*/
}
}
}
} }
$document_html = $doc->saveHTML(); $document_html = self::fixImagesPaths($document_html, $course_data, $dirName);
api_set_encoding_html($document_html, 'UTF-8'); // The library mPDF expects UTF-8 encoded input data. api_set_encoding_html($document_html, 'UTF-8'); // The library mPDF expects UTF-8 encoded input data.
// TODO: Maybe it is better idea the title to be passed through // TODO: Maybe it is better idea the title to be passed through
@ -414,6 +339,106 @@ class PDF
exit; exit;
} }
/**
* Fix images source paths to allow export to pdf
* @param string $documentHtml
* @param array $courseInfo
* @param string $dirName
* @return string
*/
private static function fixImagesPaths($documentHtml, array $courseInfo, $dirName = '')
{
$doc = new DOMDocument();
@$doc->loadHTML($documentHtml);
$elements = $doc->getElementsByTagName('img');
if (empty($elements)) {
return $doc->saveHTML();
}
$protocol = api_get_protocol();
$sysCodePath = api_get_path(SYS_CODE_PATH);
$sysCoursePath = api_get_path(SYS_COURSE_PATH);
$sysUploadPath = api_get_path(SYS_UPLOAD_PATH);
$documentPath = $courseInfo ? $sysCoursePath.$courseInfo['path'].'/document/' : '';
/** @var \DOMElement $element */
foreach ($elements as $element) {
$src = $element->getAttribute('src');
$src = trim($src);
if (strpos($src, $protocol) !== false) {
continue;
}
if (strpos($src, '/main/default_course_document') === 0) {
$element->setAttribute(
'src',
str_replace('/main/default_course_document', $sysCodePath.'default_course_document', $src)
);
continue;
}
if (strpos($src, '/main/img') === 0) {
$element->setAttribute(
'src',
str_replace('/main/img/', $sysCodePath.'img/', $src)
);
continue;
}
if (strpos($src, '/app/upload/') === 0) {
$element->setAttribute(
'src',
str_replace('/app/upload/', $sysUploadPath, $src)
);
continue;
}
if (empty($courseInfo)) {
continue;
}
if (api_get_path(REL_PATH) != '/') {
$oldSrcFixed = str_replace(
api_get_path(REL_PATH).'courses/'.$courseInfo['path'].'/document/',
'',
$src
);
// Try with the dirname if exists
if ($oldSrcFixed == $src) {
if (file_exists($dirName.'/'.$src)) {
$documentPath = '';
$oldSrcFixed = $dirName.'/'.$src;
}
}
} else {
if (strpos($src, 'courses/'.$courseInfo['path'].'/document/') !== false) {
$oldSrcFixed = str_replace('courses/'.$courseInfo['path'].'/document/', '', $src);
} else {
// Try with the dirname if exists
if (file_exists($dirName.'/'.$src)) {
$documentPath = '';
$oldSrcFixed = $dirName.'/'.$src;
} else {
$documentPath = '';
$oldSrcFixed = $src;
}
}
}
$element->setAttribute('src', $documentPath.$oldSrcFixed);
}
return $doc->saveHTML();
}
/** /**
* Converts an html string to PDF * Converts an html string to PDF
* @param string $document_html valid html * @param string $document_html valid html

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