Merge pull request #1 from iodine/marc.add-post

Add support for post requests

Author: Marc Mendiola

Downloader.h

@@ -9,6 +9,8 @@ typedef void (^ProgressCallback)(NSNumber*, NSNumber*);
 
 @property (copy) NSString* fromUrl;
 @property (copy) NSString* toFile;
+@property (copy) NSString* method;
+@property (copy) NSString* postString;
 @property (copy) DownloaderCallback callback;         // Download has finished (data written)
 @property (copy) ErrorCallback errorCallback;         // Something went wrong
 @property (copy) BeginCallback beginCallback;         // Download has started (headers received)

Downloader.m

@@ -22,14 +22,19 @@ @implementation Downloader
 - (void)downloadFile:(DownloadParams*)params
 {
   _params = params;
-  
+
   _bytesWritten = 0;
 
   NSURL* url = [NSURL URLWithString:_params.fromUrl];
 
   NSMutableURLRequest* downloadRequest = [NSMutableURLRequest requestWithURL:url
                                                                  cachePolicy:NSURLRequestUseProtocolCachePolicy
                                                              timeoutInterval:30];
+  if ([_params.method isEqualToString: @"POST"]) {
+    [downloadRequest setHTTPMethod:_params.method];
+    NSString *postString = _params.postString;
+    [downloadRequest setHTTPBody:[postString dataUsingEncoding:NSUTF8StringEncoding]];
+  }
 
   [[NSFileManager defaultManager] createFileAtPath:_params.toFile contents:nil attributes:nil];
 
@@ -61,7 +66,7 @@ - (void)connection:(NSURLConnection*)connection didReceiveResponse:(NSURLRespons
 
   _statusCode = [NSNumber numberWithLong:httpUrlResponse.statusCode];
   _contentLength = [NSNumber numberWithLong: httpUrlResponse.expectedContentLength];
-  
+
   return _params.beginCallback(_statusCode, _contentLength, httpUrlResponse.allHeaderFields);
 }
 

FS.common.js

@@ -83,7 +83,7 @@ var RNFS = {
       })
       .catch(convertError);
   },
-  
+
   exists(filepath) {
     return _exists(filepath)
       .catch(convertError);
@@ -150,7 +150,7 @@ var RNFS = {
       .catch(convertError);
   },
 
-  downloadFile(fromUrl, toFile, begin, progress) {
+  downloadFile(fromUrl, toFile, method = 'GET', paramString = '', begin, progress) {
     var jobId = getJobId();
     var subscriptionIos, subscriptionAndroid;
 
@@ -173,7 +173,7 @@ var RNFS = {
         subscriptionAndroid = DeviceEventEmitter.addListener('DownloadProgress-' + jobId, progress);
     }
 
-    return _downloadFile(fromUrl, toFile, jobId)
+    return _downloadFile(fromUrl, toFile, method, paramString, jobId)
       .then(res => {
         if (subscriptionIos) subscriptionIos.remove();
         if (subscriptionAndroid) subscriptionAndroid.remove();
@@ -189,7 +189,6 @@ var RNFS = {
   MainBundlePath: RNFSManager.MainBundlePath,
   CachesDirectoryPath: RNFSManager.NSCachesDirectoryPath,
   DocumentDirectoryPath: RNFSManager.NSDocumentDirectoryPath,
-  ExternalDirectoryPath: RNFSManager.NSExternalDirectoryPath,
   LibraryDirectoryPath: RNFSManager.NSLibraryDirectoryPath,
   PicturesDirectoryPath: RNFSManager.NSPicturesDirectoryPath
 };

RNFSManager.m

@@ -174,6 +174,8 @@ - (dispatch_queue_t)methodQueue
 
 RCT_EXPORT_METHOD(downloadFile:(NSString *)urlStr
                   filepath:(NSString *)filepath
+                  method:(NSString *)method
+                  postString:(NSString *)postString
                   jobId:(nonnull NSNumber *)jobId
                   callback:(RCTResponseSenderBlock)callback)
 {
@@ -182,6 +184,8 @@ - (dispatch_queue_t)methodQueue
 
   params.fromUrl = urlStr;
   params.toFile = filepath;
+  params.method = method;
+  params.postString = postString;
 
   params.callback = ^(NSNumber* statusCode, NSNumber* bytesWritten) {
     NSMutableDictionary* result = [[NSMutableDictionary alloc] initWithDictionary: @{@"jobId": jobId,