Unrecognized image file type - php

Question

I'm creating an iOS application using AFMultipartFormData AFNetworking to upload an image onto Wordpress site. On the Wordpress server side, the following data was received when I echoed $_FILES:
media = {
error = (
0
);
name = (
"IMG_0004.JPG"
);
"tmp_name" = (
"C:\\Windows\\Temp\\phpF010.tmp"
);
type = (
"image/jpeg"
);
};
Somehow, Wordpress doesn't recognize my file as a valid image file in wp_check_filetype_and_ext() as I'm getting the following error back:
Error Domain=com.alamofire.error.serialization.response Code=-1011 "Request failed: unsupported media type (415)"
Here is my Wordpress function to handle the file uploaded and insert it into the media directory:
function ldp_image_upload( $request ) {
if ( empty($_FILES) ) {
return new WP_Error( 'Bad Request', 'Missing media file', array( 'status' => 400 ) );
}
$overrides = array('test_form' => false);
$uploaded_file = $_FILES['media'];
$wp_filetype = wp_check_filetype_and_ext( $uploaded_file['tmp_name'], $uploaded_file['name'] );
if ( ! wp_match_mime_types( 'image', $wp_filetype['type'] ) )
return new WP_Error( 'Unsupported Media Type', 'Invalid image file', array( 'status' => 415 ) );
$file = wp_handle_upload($uploaded_file, $overrides);
if ( isset($file['error']) )
return new WP_Error( 'Internal Server Error', 'Image upload error', array( 'status' => 500 ) );
$url = $file['url'];
$type = $file['type'];
$file = $file['file'];
$filename = basename($file);
// Construct the object array
$object = array(
'post_title' => $filename,
'post_content' => $url,
'post_mime_type' => $type,
'guid' => $url,
);
// Save the data
$id = wp_insert_attachment($object, $file);
if ( !is_wp_error($id) ) {
// Add the meta-data such as thumbnail
wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $file ) );
}
// Create the response object
$response = new WP_REST_Response( array('result' => 'OK'));
return $response;
}
Here is the code on the front-end to send the image:
- (void)createMedia:(RemoteMedia *)media
forBlogID:(NSNumber *)blogID
progress:(NSProgress **)progress
success:(void (^)(RemoteMedia *remoteMedia))success
failure:(void (^)(NSError *error))failure
{
NSProgress *localProgress = [NSProgress progressWithTotalUnitCount:2];
NSString *path = media.localURL;
NSString *type = media.mimeType;
NSString *filename = media.file;
NSString *apiPath = [NSString stringWithFormat:#"sites/%#/media/new", blogID];
NSString *requestUrl = [self pathForEndpoint:apiPath
withVersion:ServiceRemoteRESTApibbPressExtVersion_1_0];
NSMutableURLRequest *request = [self.api.requestSerializer multipartFormRequestWithMethod:#"POST"
URLString:[[NSURL URLWithString:requestUrl relativeToURL:self.api.baseURL] absoluteString]
parameters:nil
constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
NSURL *url = [[NSURL alloc] initFileURLWithPath:path];
[formData appendPartWithFileURL:url name:#"media[]" fileName:filename mimeType:type error:nil];
} error:nil];
AFHTTPRequestOperation *operation = [self.api HTTPRequestOperationWithRequest:request success:^(AFHTTPRequestOperation * operation, id responseObject) {
NSDictionary *response = (NSDictionary *)responseObject;
NSArray * errorList = response[#"error"];
NSArray * mediaList = response[#"media"];
if (mediaList.count > 0){
RemoteMedia * remoteMedia = [self remoteMediaFromJSONDictionary:mediaList[0]];
if (success) {
success(remoteMedia);
}
localProgress.completedUnitCount=localProgress.totalUnitCount;
} else {
DDLogDebug(#"Error uploading file: %#", errorList);
localProgress.totalUnitCount=0;
localProgress.completedUnitCount=0;
NSError * error = nil;
if (errorList.count > 0){
NSDictionary * errorDictionary = #{NSLocalizedDescriptionKey: errorList[0]};
error = [NSError errorWithDomain:WordPressRestApiErrorDomain code:WPRestErrorCodeMediaNew userInfo:errorDictionary];
}
if (failure) {
failure(error);
}
}
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
DDLogDebug(#"Error uploading file: %#", [error localizedDescription]);
localProgress.totalUnitCount=0;
localProgress.completedUnitCount=0;
if (failure) {
failure(error);
}
}];
// Setup progress object
[operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) {
localProgress.completedUnitCount +=bytesWritten;
}];
unsigned long long size = [[request valueForHTTPHeaderField:#"Content-Length"] longLongValue];
// Adding some extra time because after the upload is done the backend takes some time to process the data sent
localProgress.totalUnitCount = size+1;
localProgress.cancellable = YES;
localProgress.pausable = NO;
localProgress.cancellationHandler = ^(){
[operation cancel];
};
if (progress) {
*progress = localProgress;
}
[self.api.operationQueue addOperation:operation];
}
As far as the mimes type is concern, image/jpeg should be supported by wordpress. Unless C:\\Windows\\Temp\\phpF010.tmp is not a true image, then AFNetworking is sending a corrupted file?
Can anyone offer advice on this? Thanks in advance.

Answer 1

Does $wp_filetype['proper_filename'] return something? I haven't tried this but I think this should return the filename as it should be (i.e. with an extension). If it does, you should move the uploaded file to another location and then rename it with the new filename, the upload should then succeed.