download-progress

Author: geof90

CodePush.h

@@ -1,12 +1,5 @@
 #import "RCTBridgeModule.h"
 
-@interface CodePush : NSObject<RCTBridgeModule>
-
-+ (NSURL *)getBundleUrl;
-+ (NSString *)getDocumentsDirectory;
-
-@end
-
 @interface CodePushConfig : NSObject
 
 + (void)setDeploymentKey:(NSString *)deploymentKey;
@@ -29,6 +22,31 @@
 
 @end
 
+@interface CodePushDownloadHandler : NSObject<NSURLConnectionDelegate>
+
+@property (nonatomic, strong) NSOutputStream *outputFileStream;
+@property long expectedContentLength;
+@property long receivedContentLength;
+@property (copy)void (^progressCallback)(long, long);
+@property (copy)void (^doneCallback)();
+@property (copy)void (^failCallback)(NSError *err);
+
+- (id)init:(NSString *)downloadFilePath
+progressCallback:(void (^)(long, long))progressCallback
+doneCallback:(void (^)())doneCallback
+failCallback:(void (^)(NSError *err))failCallback;
+
+- (void)download:(NSString*)url;
+
+@end
+
+@interface CodePush : NSObject<RCTBridgeModule>
+
++ (NSURL *)getBundleUrl;
++ (NSString *)getDocumentsDirectory;
+
+@end
+
 @interface CodePushPackage : NSObject
 
 + (void)applyPackage:(NSDictionary *)updatePackage
@@ -43,10 +61,11 @@
 
 + (NSString *)getPackageFolderPath:(NSString *)packageHash;
 
-
 + (void)downloadPackage:(NSDictionary *)updatePackage
-                            error:(NSError **)error;
+       progressCallback:(void (^)(long, long))progressCallback
+           doneCallback:(void (^)())doneCallback
+           failCallback:(void (^)(NSError *err))failCallback;
 
 + (void)rollbackPackage;
 
-@end
+@end

CodePush.m

@@ -1,4 +1,5 @@
 #import "RCTBridgeModule.h"
+#import "RCTEventDispatcher.h"
 #import "RCTRootView.h"
 #import "RCTUtils.h"
 #import "CodePush.h"
@@ -195,27 +196,33 @@ - (void)startRollbackTimer:(int)rollbackTimeout
 }
 
 RCT_EXPORT_METHOD(downloadUpdate:(NSDictionary*)updatePackage
-                  resolver:(RCTPromiseResolveBlock)resolve
-                  rejecter:(RCTPromiseRejectBlock)reject)
+                        resolver:(RCTPromiseResolveBlock)resolve
+                        rejecter:(RCTPromiseRejectBlock)reject)
 {
-    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
-        NSError *err;
-        [CodePushPackage downloadPackage:updatePackage
-                                   error:&err];
-        
-        if (err) {
-            return reject(err);
-        }
-        
-        NSDictionary *newPackage = [CodePushPackage getPackage:updatePackage[@"packageHash"]
-                                                         error:&err];
-        
-        if (err) {
-            return reject(err);
-        }
-        
-        resolve(newPackage);
-    });
+    [CodePushPackage downloadPackage:updatePackage
+                    progressCallback:^(long expectedContentLength, long receivedContentLength) {
+                        [self.bridge.eventDispatcher
+                         sendAppEventWithName:@"CodePushDownloadProgress"
+                         body:@{
+                                @"totalBytes":[NSNumber numberWithLong:expectedContentLength],
+                                @"receivedBytes":[NSNumber numberWithLong:receivedContentLength]
+                                }];
+                    }
+                        doneCallback:^{
+                            NSError *err;
+                            NSDictionary *newPackage = [CodePushPackage
+                                                        getPackage:updatePackage[@"packageHash"]
+                                                        error:&err];
+                            
+                            if (err) {
+                                return reject(err);
+                            }
+                            
+                            resolve(newPackage);
+                        }
+                        failCallback:^(NSError *err) {
+                            reject(err);
+                        }];
 }
 
 RCT_EXPORT_METHOD(getConfiguration:(RCTPromiseResolveBlock)resolve

CodePush.xcodeproj/project.pbxproj

@@ -8,6 +8,7 @@
 
 /* Begin PBXBuildFile section */
 		13BE3DEE1AC21097009241FE /* CodePush.m in Sources */ = {isa = PBXBuildFile; fileRef = 13BE3DED1AC21097009241FE /* CodePush.m */; };
+		54FFEDE01BF550630061DD23 /* CodePushDownloadHandler.m in Sources */ = {isa = PBXBuildFile; fileRef = 54FFEDDF1BF550630061DD23 /* CodePushDownloadHandler.m */; settings = {ASSET_TAGS = (); }; };
 		810D4E6D1B96935000B397E9 /* CodePushPackage.m in Sources */ = {isa = PBXBuildFile; fileRef = 810D4E6C1B96935000B397E9 /* CodePushPackage.m */; };
 		81D51F3A1B6181C2000DA084 /* CodePushConfig.m in Sources */ = {isa = PBXBuildFile; fileRef = 81D51F391B6181C2000DA084 /* CodePushConfig.m */; };
 /* End PBXBuildFile section */
@@ -28,6 +29,7 @@
 		134814201AA4EA6300B7C361 /* libCodePush.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = libCodePush.a; sourceTree = BUILT_PRODUCTS_DIR; };
 		13BE3DEC1AC21097009241FE /* CodePush.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = CodePush.h; sourceTree = "<group>"; };
 		13BE3DED1AC21097009241FE /* CodePush.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = CodePush.m; sourceTree = "<group>"; };
+		54FFEDDF1BF550630061DD23 /* CodePushDownloadHandler.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = CodePushDownloadHandler.m; sourceTree = "<group>"; };
 		810D4E6C1B96935000B397E9 /* CodePushPackage.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = CodePushPackage.m; sourceTree = "<group>"; };
 		81D51F391B6181C2000DA084 /* CodePushConfig.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = CodePushConfig.m; sourceTree = "<group>"; };
 /* End PBXFileReference section */
@@ -54,6 +56,7 @@
 		58B511D21A9E6C8500147676 = {
 			isa = PBXGroup;
 			children = (
+				54FFEDDF1BF550630061DD23 /* CodePushDownloadHandler.m */,
 				810D4E6C1B96935000B397E9 /* CodePushPackage.m */,
 				81D51F391B6181C2000DA084 /* CodePushConfig.m */,
 				13BE3DEC1AC21097009241FE /* CodePush.h */,
@@ -119,6 +122,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				81D51F3A1B6181C2000DA084 /* CodePushConfig.m in Sources */,
+				54FFEDE01BF550630061DD23 /* CodePushDownloadHandler.m in Sources */,
 				13BE3DEE1AC21097009241FE /* CodePush.m in Sources */,
 				810D4E6D1B96935000B397E9 /* CodePushPackage.m in Sources */,
 			);

CodePushDownloadHandler.m

@@ -0,0 +1,76 @@
+#import "CodePush.h"
+
+@implementation CodePushDownloadHandler
+
+- (id)init:(NSString *)downloadFilePath
+progressCallback:(void (^)(long, long))progressCallback
+doneCallback:(void (^)())doneCallback
+failCallback:(void (^)(NSError *err))failCallback {
+    self.outputFileStream = [NSOutputStream outputStreamToFileAtPath:downloadFilePath
+                                                              append:NO];
+    self.receivedContentLength = 0;
+    self.progressCallback = progressCallback;
+    self.doneCallback = doneCallback;
+    self.failCallback = failCallback;
+    return self;
+}
+
+-(void)download:(NSString*)url {
+    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:url]
+                                             cachePolicy:NSURLRequestUseProtocolCachePolicy
+                                         timeoutInterval:60.0];
+    
+    NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request
+                                                                  delegate:self
+                                                          startImmediately:NO];
+    [connection scheduleInRunLoop:[NSRunLoop mainRunLoop]
+                          forMode:NSDefaultRunLoopMode];
+    [connection start];
+}
+
+#pragma mark NSURLConnection Delegate Methods
+
+- (NSCachedURLResponse *)connection:(NSURLConnection *)connection
+                  willCacheResponse:(NSCachedURLResponse*)cachedResponse {
+    // Return nil to indicate not necessary to store a cached response for this connection
+    return nil;
+}
+
+-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
+    self.expectedContentLength = response.expectedContentLength;
+    [self.outputFileStream open];
+}
+
+-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
+    self.receivedContentLength = self.receivedContentLength + [data length];
+    
+    NSUInteger bytesLeft = [data length];
+    
+    do {
+        NSUInteger bytesWritten = [self.outputFileStream write:[data bytes]
+                                                     maxLength:bytesLeft];
+        if (bytesWritten == -1) {
+            break;
+        }
+        
+        bytesLeft -= bytesWritten;
+    } while (bytesLeft>0);
+    
+    self.progressCallback(self.expectedContentLength, self.receivedContentLength);
+    
+    if (bytesLeft) {
+        self.failCallback([self.outputFileStream streamError]);
+    }
+}
+
+- (void)connection:(NSURLConnection*)connection didFailWithError:(NSError*)error
+{
+    self.failCallback(error);
+}
+
+-(void)connectionDidFinishLoading:(NSURLConnection *)connection {
+    [self.outputFileStream close];
+    self.doneCallback();
+}
+
+@end

CodePushPackage.m

@@ -4,6 +4,17 @@ @implementation CodePushPackage
 
 NSString * const StatusFile = @"codepush.json";
 
++ (CodePushPackage*)sharedInstance {
+    static dispatch_once_t predicate = 0;
+    __strong static id sharedInstance = nil;
+    //static id sharedObject = nil;  //if you're not using ARC
+    dispatch_once(&predicate, ^{
+        sharedInstance = [[self alloc] init];
+        //sharedObject = [[[self alloc] init] retain]; // if you're not using ARC
+    });
+    return sharedInstance;
+}
+
 + (NSString *)getCodePushPath
 {
     return [[CodePush getDocumentsDirectory] stringByAppendingPathComponent:@"CodePush"];
@@ -149,50 +160,51 @@ + (NSString *)getPackageFolderPath:(NSString *)packageHash
 }
 
 + (void)downloadPackage:(NSDictionary *)updatePackage
-                            error:(NSError **)error
+       progressCallback:(void (^)(long, long))progressCallback
+           doneCallback:(void (^)())doneCallback
+           failCallback:(void (^)(NSError *err))failCallback
 {
-    NSString *packageFolderPath = [self getPackageFolderPath:updatePackage[@"packageHash"]];
+    NSString *packageFolderPath = [CodePushPackage getPackageFolderPath:updatePackage[@"packageHash"]];
 
+    NSError *error;
     if (![[NSFileManager defaultManager] fileExistsAtPath:packageFolderPath]) {
         [[NSFileManager defaultManager] createDirectoryAtPath:packageFolderPath
                                   withIntermediateDirectories:YES
                                                    attributes:nil
-                                                        error:error];
-    }
-    
-    if (*error) {
-        return;
-    }
-    
-    NSURL *url = [[NSURL alloc] initWithString:updatePackage[@"downloadUrl"]];
-    NSString *updateContents = [[NSString alloc] initWithContentsOfURL:url
-                                                              encoding:NSUTF8StringEncoding
-                                                                 error:error];
-    if (*error) {
-        return;
-    }
-    
-    [updateContents writeToFile:[packageFolderPath stringByAppendingPathComponent:@"app.jsbundle"]
-                     atomically:YES
-                       encoding:NSUTF8StringEncoding
-                          error:error];
-    if (*error) {
-        return;
-    }
-    
-    NSData *updateSerializedData = [NSJSONSerialization dataWithJSONObject:updatePackage
-                                                                   options:0
-                                                                     error:error];
-    
-    if (*error) {
-        return;
+                                                        error:&error];
     }
 
-    NSString *packageJsonString = [[NSString alloc] initWithData:updateSerializedData encoding:NSUTF8StringEncoding];
-    [packageJsonString writeToFile:[packageFolderPath stringByAppendingPathComponent:@"app.json"]
-                        atomically:YES
-                          encoding:NSUTF8StringEncoding
-                             error:error];
+    if (error) {
+        return failCallback(error);
+    }
+    
+    NSString *downloadFilePath = [packageFolderPath stringByAppendingPathComponent:@"app.jsbundle"];
+    
+    CodePushDownloadHandler *downloadHandler = [[CodePushDownloadHandler alloc]
+                       init:downloadFilePath
+                       progressCallback:progressCallback
+                       doneCallback:^{
+                           NSError *error;
+                           NSData *updateSerializedData = [NSJSONSerialization
+                                                           dataWithJSONObject:updatePackage
+                                                           options:0
+                                                           error:&error];
+                           NSString *packageJsonString = [[NSString alloc]
+                                                          initWithData:updateSerializedData encoding:NSUTF8StringEncoding];
+                           
+                           [packageJsonString writeToFile:[packageFolderPath stringByAppendingPathComponent:@"app.json"]
+                                               atomically:YES
+                                                 encoding:NSUTF8StringEncoding
+                                                    error:&error];
+                           if (error) {
+                               failCallback(error);
+                           } else {
+                               doneCallback();
+                           }
+                       }
+                       failCallback:failCallback];
+    
+    [downloadHandler download:updatePackage[@"downloadUrl"]];
 }
 
 + (void)applyPackage:(NSDictionary *)updatePackage
@@ -207,7 +219,7 @@ + (void)applyPackage:(NSDictionary *)updatePackage
 
     [info setValue:info[@"currentPackage"] forKey:@"previousPackage"];
     [info setValue:packageHash forKey:@"currentPackage"];
-
+    
     [self updateCurrentPackageInfo:info
                              error:error];
 }

Examples/CodePushDemoApp/iOS/Info.plist

@@ -44,6 +44,6 @@
 	<key>NSLocationWhenInUseUsageDescription</key>
 	<string></string>
 	<key>CodePushDeploymentKey</key>
-	<string>deployment-key-here</string>
+	<string>your-deployment-key</string>
 </dict>
 </plist>

Examples/CodePushDemoApp/index.ios.js

@@ -32,14 +32,23 @@ var CodePushDemoApp = React.createClass({
     return { update: false };
   },
   handlePress: function() {
-    this.state.update.download().done((localPackage) => {
+    this.state.update.download((progress) => {
+      this.setState({
+        progress:progress
+      });
+    }).done((localPackage) => {
       localPackage.apply().done();
     });
   },
 
   render: function() {
     var updateView;
-    if (this.state.update) {
+    
+    if (this.state.progress) {
+      updateView = (
+        <Text>{this.state.progress.receivedBytes} of {this.state.progress.totalBytes} bytes received</Text>
+      );
+    } else if (this.state.update) {
       updateView = (
         <View>
           <Text>Update Available: {'\n'} {this.state.update.scriptVersion} - {this.state.update.description}</Text>
@@ -49,6 +58,7 @@ var CodePushDemoApp = React.createClass({
         </View>
       );
     };
+    
     return (
       <View style={styles.container}>
         <Text style={styles.welcome}>