(在线文库系统)centos nginx mysql php openoffice pdf2swf pdf2image
万高轩
(在线文库系统)centos+nginx+mysql+php+openoffice+pdf2swf+pdf2image架构方案
总体架构：
前端web服务器+数据库服务器+文件转换服务器+文件存储服务器
总体描述：
前端web页面上传文件，后端程序将数据写入mysql,并将文件发送到文件服务器，文件服务器定时查询mysql取出需要转换文件列表，用php脚本调用linux命令执行转换文件操作，转换完成后将数据库对应记录更新，并将文件发送到文件存储服务器。
一.将文件发送到文件转换服务器
- web端
php通过curl发送文件
- 文件转换服务器
搭建一个web服务，只需要2个东东：upload.php、uploads文件夹
upload.php代码如下：
<?php
define('MY_ROOT', str_replace('/upload.php', '', str_replace('\\', '/', __FILE__)));
if(isset($_FILES)){
if(isset($_FILES['file'])){
try {
move_uploaded_file($_FILES['file']['tmp_name'], MY_ROOT.'/uploads/'.$_FILES['file']['name']);
@unlink($GLOBALS[$_FILES['file']['tmp_name']]);
echo json_encode(array('success'=>TRUE,'error'=>''));
} catch (Exception $exc) {
//echo $exc->getTraceAsString();
echo json_encode(array('success'=>FALSE,'error'=>'移动文件失败'));
}
}
}
?>
二.文件转换php脚本核心代码如下
#!/usr/local/php.old/bin/php -q
<?php
date_default_timezone_set('PRC');
error_reporting(E_ALL);
/* 取得当前所在的根目录 */
define('MY_ROOT', str_replace('/setup.php', '', str_replace('\\', '/', __FILE__)));
include_once(MY_ROOT."/include/lib_mysql.php");//mysql操作类
require_once(MY_ROOT.'/include/aliyun/aliyun.php');
include_once(MY_ROOT."/config.php");
use \Aliyun\OSS\OSSClient;
$client = OSSClient::factory(array(
'AccessKeyId' => $AccessKeyId,
'AccessKeySecret' => $AccessKeySecret,
));
$db = new lib_mysql($db_host, $db_user, $db_pass, $db_name);
while (true){
$sql = "select aid,softlinks from t_addonbook where wwk=0 ";
$list = $db->getAll($sql);
//循环处理需要转换的文档
foreach($list as $item){
//获取源文档的上传路径
$local_path = $item['softlinks'];//{dede:link islocal='1' text='本地下载'} /uploads/userup/1088/9-30.xls {/dede:link}
$tmp_str = strpos($local_path, '}')+1;
$local_path = substr($local_path, $tmp_str);//去除 {dede:link islocal='1' text='本地下载'}
$tmp_str = strpos($local_path, '{/dede:link}');
$local_path = substr($local_path, 0, $tmp_str);//去除 {/dede:link}
$local_path = str_replace(" ", "", $local_path);
$local_file_name = basename($local_path);//文件名+扩展名
$file_name_arr = explode(".", $local_file_name);
$file_name = $file_name_arr[0];
$file_type = end($file_name_arr);
$file_type = strtolower($file_type);
$tmp_name_str = strpos($local_path, $local_file_name);
$local_path = substr($local_path, 0,$tmp_name_str);//去除文件名
if(file_exists($upload_path.$local_file_name)){
if(copy($upload_path.$local_file_name, $convert_path.$local_file_name)){//将文件
//将文件转换为pdf
$start = time();
if($file_type=='txt'){
if(!isUTF8($convert_path.$local_file_name)){//若不是UTF8编码，则转码
$temp = exec("enca -i ".$convert_path.$local_file_name);
if(strrpos($temp, '???') === false){//是gbk
exec("iconv -f gbk -t utf-8 ".$convert_path.$local_file_name." -o ".$convert_path.$local_file_name);//txt 转码
}else{
exec("iconv -f unicode -t utf-8 ".$convert_path.$local_file_name." -o ".$convert_path.$local_file_name);//txt 转码
}
}
}
if($file_type!='pdf'){
exec($openoffice_path." -f pdf ".$convert_path.$local_file_name);//转换为pdf
}
//生成缩略图
exec("cd ".$pdfimg_path);
$temp = exec("cd ".$pdfimg_path."&& ./pdf2img -f 1 -w 150 -h 200 ".$convert_path.$file_name.".pdf ".$convert_path.$file_name.".jpg");
//生成swf
$temp = exec($swftools_path." -f -T 9 -t ".$convert_path.$file_name.".pdf -o ".$convert_path.$file_name.".swf");
if(strrpos($temp, 'NOTICE') === false){//第一种那个方式转换失败
//第二种转换方式
$temp = exec($swftools_path." -f -T 9 -t -s poly2bitmap ".$convert_path.$file_name.".pdf -o ".$convert_path.$file_name.".swf");
}
echo "1->".$item['aid'].' : ';print_r($temp);echo "\n";
//获取pdf总页数
$pagenum = getPageTotal($convert_path.$file_name.".pdf");
if(!file_exists($convert_path.$file_name.".jpg")){//jpg
exec($mv_path."mv ".$convert_path.$file_name."0001.jpg ".$convert_path.$file_name.".jpg");
}
//将swf,jpg和源文件拷贝到文件服务器
/*上传swf*/
$client->putObject(array(
'Bucket' => 'bucket-wenku',
'Key' => $file_name.'.swf',
'Content' => fopen($convert_path.$file_name.'.swf', 'r'),
'ContentLength' => filesize($convert_path.$file_name.'.swf'),
));
/*上传jpg*/
$client->putObject(array(
'Bucket' => 'bucket-wenku',
'Key' => $file_name.'.jpg',
'Content' => fopen($convert_path.$file_name.'.jpg', 'r'),
'ContentLength' => filesize($convert_path.$file_name.'.jpg'),
));
/*上传源文件*/
$client->putObject(array(
'Bucket' => 'bucket-wenku',
'Key' => $local_file_name,
'Content' => fopen($convert_path.$local_file_name, 'r'),
'ContentLength' => filesize($convert_path.$local_file_name),
));
//写入数据库
//$onlineviewurl = '/swf/'.$file_name.'.swf';
$onlineviewurl = '/load.php?file='.$file_name.'.swf';
$sql = "update t_addonbook set onlineviewurl='$onlineviewurl',wwk=1,pagenumber=$pagenum where aid=$item[aid]";
$db->query($sql);
//$litpic = '/swf/'.$file_name.'.jpg';
$litpic = '/load.php?file='.$file_name.'.jpg';
$sql = "update t_archives set litpic='$litpic' where id=$item[aid]";
$db->query($sql);
//删除文件
exec("rm -rf ".$convert_path.$file_name."*");
//删除上传目录文件
exec("rm -rf ".$upload_path.$local_file_name);
}else{
//复制文件失败
}
}else{
//写入错误日志
}
sleep(1);
}
echo "5\n";
sleep(5);
}
/**
* 获取PDF的页数
*/
function getPageTotal($path){
// 打开文件
if (!$fp = @fopen($path,"r")) {
return false;
}
else {
$max=0;
while(!feof($fp)) {
$line = fgets($fp,255);
if (preg_match('/\/Count [0-9]+/', $line, $matches)){
preg_match('/[0-9]+/',$matches[0], $matches2);
if ($max<$matches2[0]) $max=$matches2[0];
}
}
fclose($fp);
// 返回页数
return $max;
}
}
function isUTF8($str)
{
$str1 = file_get_contents($str);
$code = chkCode($str1);
if($code=='UTF-8'){
return TRUE;
}else{
return FALSE;
}
}
function chkCode($string){
$code = array('UTF-8','GBK','GB18030','GB2312');
foreach($code as $c){
if( $string === iconv('UTF-8', $c, iconv($c, 'UTF-8', $string))){
return $c;
}
}
return "no";
}
?>
github上面看到也有其他方法： https://github.com/yoozi/swf-docs-generator
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