今天本來在寫一個接口,上傳圖片,然后保存,數據庫中記住路徑,這樣的一個任務
搗鼓了半天,上傳圖片代碼寫好了
- (void)uploadFile {
NSString *path = @"/Users/apple/Desktop/acc.png";
NSString *urlStr = @"http://www.cry.com/uploadFile.php";
NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:urlStr parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> _Nonnull formData) {
NSError *error;
[formData appendPartWithFileURL:[NSURL fileURLWithPath:path] name:@"file" fileName:@"acc.png" mimeType:@"image/png" error:&error];
NSLog(@"%@",error);
} error:nil];
AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
NSURLSessionUploadTask *task = [manager uploadTaskWithStreamedRequest:request progress:^(NSProgress * _Nonnull uploadProgress) {
NSLog(@"%@",uploadProgress);
} completionHandler:^(NSURLResponse * _Nonnull response, id _Nullable responseObject, NSError * _Nullable error) {
NSLog(@"response: %@",response);
NSLog(@"responseobj: %@",responseObject);
NSLog(@"%@",responseObject[@"status"]);
NSLog(@"error: %@",error);
}];
[task resume];
}
虛擬機服務器的php代碼也寫了(簡陋的代碼),只是想試試傳圖片的流程
<?php
header("Content-Type:application/json");
/** * Created by PhpStorm. * User: apple * Date: 16/11/10 * Time: 上午9:45 */
$tmpfilename = $_FILES['file']['tmp_name'];
$name = $_FILES['file']['name'];
$path = "images/$name";
$json_arr ['newPath'] = $path;
if (is_uploaded_file($tmpfilename)) {
$json_arr["isULfile"] = "是上傳文件";
} else {
$json_arr["isULfile"] = "不是上傳文件";
}
$isSucc = move_uploaded_file($tmpfilename,$path);
if ($isSucc) { $json_arr["status"] = "上傳成功";
} else {
$json_arr["status"] = "上傳失敗";
$json_arr["desc"] = $isSucc;
}
$json_arr += $_FILES;
echo json_encode($json_arr,JSON_PRETTY_PRINT);
?>
然而,后臺服務器接受到了圖片,臨時文件已經有了
每次給我輸出的都是
p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Menlo}span.s1 {font-variant-ligatures: no-common-ligatures}
responseobj: {
file = {
error = 0;
name = "acc.png";
size = 707;
"tmp_name" = "/tmp/phpw095q1";
type = "image/png";
};
isULfile = "是上傳文件";(php里的is_uploaded_file()函數)
newPath = "/var/www/cry.com/images/acc.png";(寫入的路徑)
status = "\U4e0a\U4f20\U6210\U529f";
}
2016-11-10 19:41:10.289 OC32[89155:5771018] 上傳失敗
status里的那串就是"上傳失敗"
然后我登入虛擬機,查看日志/var/log/httpd/error_log,因為PHP就是以模塊的形式集成在Apache上運行的,日志在httpd里(apache就是httpd)
Thu Nov 10 18:17:16.452810 2016] [:error] [pid 6019] [client 192.168.1.219:61588] PHP Warning: move_uploaded_file(/var/www/cry.com/images/acc.png): failed to open stream: Permission denied in /var/www/cry.com/uploadFile.php on line 21
Thu Nov 10 18:17:16.498295 2016] [:error] [pid 6019] [client 192.168.1.219:61588] PHP Warning: move_uploaded_file(): Unable to move '/tmp/phpj5KtFB' to '/var/www/cry.com/images/acc.png' in /var/www/cry.com/uploadFile.php on line 21
???Permission denied???,這是沒權限的意思嗎
查看了很多,什么chown修改,chmod 777修改,各種權限,都還是上傳失敗.
最后發現是SELinux在搞鬼
SELinux 更能遵從最小權限的理念。在缺省的 enforcing 情況下，一切均被拒絕，接著有一系列例外的政策來允許系統的每個元素（服務、程序、用戶）運作時所需的訪問權。當一項服務、程序或用戶嘗試訪問或修改一個它不須用的文件或資源時，它的請求會遭拒絕，而這個行動會被記錄下來
所以,我們可以在/etc/selinux/config修改SELinux配置,關掉它
但是,肯定還有別的方法
看到有段文字說所有進程及文件都擁有一個 SELinux 的安全性脈絡,可以用ls -Z查看
-rwxr-xr-x. apache apache system_u:object_r:httpd_sys_content_t:s0 uploadFile.php
-rw-r--r--. apache apache unconfined_u:object_r:httpd_sys_content_t:s0 images
httpd_sys_content_t 這是apache的權限角色
雖然英文一般,但是看到了關鍵字wirete to those path
http://newscentral.exsees.com/item/5b6cccab6ed05ce053bc09f70dc9386e-99c0b81ebd43e7b6848a00939f39b855 里面博主說
sudo chcon -R -t httpd_sys_rw_content_t /var/www/cry.com/images
把我準備寫入的文件夾的權限角色從httpd_sys_content_t
改成httpd_sys_rw_content_t
run~
就這樣,看起來好像解決了
參考:
http://newscentral.exsees.com/item/5b6cccab6ed05ce053bc09f70dc9386e-99c0b81ebd43e7b6848a00939f39b855
有更好的方法,可以留言~
