ReadDocument.class.php
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<?php
/**
* File Name: ReadDocument.class.php
*/
namespace Org\Net;
class ReadDocument
{
public function __construct()
{}
/*
* get the type of the file
*/
private function getFileType($escapeFile)
{
if (empty($escapeFile)) {
echo "ERROR:no file input!\n";
exit();
}
$command = "file -i $escapeFile";
$fileMime = exec($command);
$matches = array();
preg_match('/: ((\w|\/)*?);/', $fileMime, $matches);
return $matches[1];
}
/*
* read the content in the File
* @inputPath: the file to be readed or written
* @operation: read or write
* @return the content of the file
*/
public function read($file, $type = null)
{
if (empty($type)) {
$type = $this->getFileType($file);
}
$content = "";
if ($type == "application/pdf") {
$content = $this->readPDF($file);
} else
if ($type == "application/msword") {
$content = $this->readDOC($file);
} else
if ($type == "application/vnd.openxmlformats-officedocument.wordprocessingml.document") {
$content = $this->readDOCX($file);
} else
if ($type == "application/zip") {
$content = $this->readZIP($file);
} else
if ($type == "inode/directory") {
$content = $this->readDIR($file);
} else
if ($type == "text/plain") {
$content = $this->readTXT($file);
}
return $content;
}
/*
* read txt document
*/
private function readTXT($file)
{
header("content-type:text/plain;charset=utf-8");
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $file);
curl_setopt($ch, CURLOPT_FILETIME, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$json_string = curl_exec($ch);
curl_close($ch);
$content = trim($json_string);
return $content;
}
/*
* read document in the directory
*/
private function readDIR($file)
{
$file = trim($file);
if ($file[strlen($file) - 1] != '/') {
$file .= '/';
}
$dir = opendir($file);
$content = "";
while (false !== ($document = readdir($dir))) {
if ($document[0] == '.') {
continue;
}
$name = $file . $document;
$result = $this->read($name);
$content[$document] = $result;
}
closedir($dir);
return $content;
}
/*
* read ms word with DOC suffix
*/
private function readDOC($file)
{
$escapeFile = escapeshellarg($file);
$command = "catdoc $escapeFile";
return $this->writeContent($command);
}
/*
* read ms word with DOCX suffix
*/
private function readDOCX($file)
{
$docxZip = new \ZipArchive();
$docxZipRes = $docxZip->open($file);
if ($docxZipRes === true) {
$content = $docxZip->getFromName('word/document.xml');
$content = preg_replace('/\<\/w\:p\>/', "\n", $content);
$content = strip_tags($content, "\n");
$docxZip->close($file);
} else {
echo "ERROR: $docxZipRes\n";
exit();
}
return $content;
}
/*
* read zip document
*/
private function readZIP($file)
{
$zip = new ZipArchive();
$zipRes = $zip->open($file);
$thisContent = array();
if ($zipRes === true) {
$zipLen = $zip->numFiles;
for ($index = 0; $index < $zipLen; ++ $index) {
$zipStat = $zip->statIndex($index);
if ($zipStat['comp_method'] == 0) // dir
{
continue;
}
$name = $zipStat['name'];
if (preg_match('/\.pdf|\.doc|\.xls\.xlsx/i', $name) > 0) {
$extract = $zip->extractTo('/tmp/rwDocument/', $name);
$thisFile = "/tmp/rwDocument/$name";
$content = $this->read($thisFile);
$thisContent[$name] = $content;
if (preg_match('/\.docx/', $name) > 0) {
++ $index;
$zipStat = $zip->statIndex($index);
while (preg_match('/\.xml|\.rels/', $zipStat['name']) > 0) {
++ $index;
$zipStat = $zip->statIndex($index);
}
-- $index;
}
} else {
$thisContent[$name] = $zip->getFromIndex($index);
}
}
$zip->close();
} else {
echo "ERROR: $zipRes\n";
exit();
}
return $this->zipStandize($thisContent);
}
/*
* standize the output_of zip content
*/
private function zipStandize($content)
{
$result = array();
foreach ($content as $name => $value) {
$nameArr = explode('/', $name);
$len = count($nameArr);
$i = $len - 1;
$temp = array();
$temp[$nameArr[$i --]] = $value;
while ($i >= 0) {
$temp2 = $temp;
$temp = array();
$temp[$nameArr[$i --]] = $temp2;
}
$result = array_merge_recursive($result, $temp);
}
return $result;
}
/*
* read PDF document
*/
private function readPDF($file)
{
$escapeFile = escapeshellarg($file);
$command = "pdftotext $escapeFile -";
$this->writeContent($command);
}
/*
* execute the $command and write the
*/
private function writeContent($command)
{
$output = array();
passthru($command, $output);
$content = implode("\n", $output);
return $content;
}
}