server implementation

Brokenithm-iOS.xcodeproj/project.pbxproj

@@ -12,6 +12,7 @@
 		1968E72C24086C2200784829 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 1968E72A24086C2200784829 /* Main.storyboard */; };
 		1968E72E24086C2B00784829 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 1968E72D24086C2B00784829 /* Assets.xcassets */; };
 		1968E73424086C2B00784829 /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 1968E73324086C2B00784829 /* main.m */; };
+		19F13E2A240A6F2200809B83 /* SocketDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 19F13E29240A6F2200809B83 /* SocketDelegate.m */; };
 		D023549DD3B09C46EBA2E321 /* libPods-Brokenithm-iOS.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 5A7EE02147010843456A2152 /* libPods-Brokenithm-iOS.a */; };
 /* End PBXBuildFile section */
 
@@ -25,6 +26,8 @@
 		1968E72D24086C2B00784829 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		1968E73224086C2B00784829 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		1968E73324086C2B00784829 /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = "<group>"; };
+		19F13E22240A683200809B83 /* SocketDelegate.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = SocketDelegate.h; sourceTree = "<group>"; };
+		19F13E29240A6F2200809B83 /* SocketDelegate.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = SocketDelegate.m; sourceTree = "<group>"; };
 		259804D4CC006A58255BC938 /* Pods-Brokenithm-iOS.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Brokenithm-iOS.release.xcconfig"; path = "Pods/Target Support Files/Pods-Brokenithm-iOS/Pods-Brokenithm-iOS.release.xcconfig"; sourceTree = "<group>"; };
 		5A7EE02147010843456A2152 /* libPods-Brokenithm-iOS.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = "libPods-Brokenithm-iOS.a"; sourceTree = BUILT_PRODUCTS_DIR; };
 		B78B36B35C6A90E4F71F84B4 /* Pods-Brokenithm-iOS.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Brokenithm-iOS.debug.xcconfig"; path = "Pods/Target Support Files/Pods-Brokenithm-iOS/Pods-Brokenithm-iOS.debug.xcconfig"; sourceTree = "<group>"; };
@@ -71,6 +74,8 @@
 				1968E72D24086C2B00784829 /* Assets.xcassets */,
 				1968E73224086C2B00784829 /* Info.plist */,
 				1968E73324086C2B00784829 /* main.m */,
+				19F13E22240A683200809B83 /* SocketDelegate.h */,
+				19F13E29240A6F2200809B83 /* SocketDelegate.m */,
 			);
 			path = "Brokenithm-iOS";
 			sourceTree = "<group>";
@@ -186,6 +191,7 @@
 				1968E72924086C2200784829 /* ViewController.m in Sources */,
 				1968E73424086C2B00784829 /* main.m in Sources */,
 				1968E72624086C2200784829 /* AppDelegate.m in Sources */,
+				19F13E2A240A6F2200809B83 /* SocketDelegate.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

Brokenithm-iOS/SocketDelegate.h

@@ -0,0 +1,26 @@
+//
+//  SocketDelegate.h
+//  Brokenithm-iOS
+//
+//  Created by ester on 2020/2/29.
+//  Copyright © 2020 esterTion. All rights reserved.
+//
+
+#ifndef SocketDelegate_h
+#define SocketDelegate_h
+
+@class ViewController;
+
+#import <UIKit/UIKit.h>
+#import <CocoaAsyncSocket/GCDAsyncSocket.h>
+#import "ViewController.h"
+
+@interface SocketDelegate : NSObject {
+    GCDAsyncSocket *server;
+    NSMutableArray *connectedSockets;
+}
+@property ViewController *parentVc;
+
+@end
+
+#endif /* SocketDelegate_h */

Brokenithm-iOS/SocketDelegate.m

@@ -0,0 +1,78 @@
+//
+//  SocketDelegate.m
+//  Brokenithm-iOS
+//
+//  Created by ester on 2020/2/29.
+//  Copyright © 2020 esterTion. All rights reserved.
+//
+
+#import "SocketDelegate.h"
+
+@interface SocketDelegate ()
+@end
+
+@implementation SocketDelegate
+
+- (id)init {
+    server = [[GCDAsyncSocket alloc] initWithDelegate:(id)self delegateQueue:dispatch_get_main_queue()];
+    {
+        NSError *error = nil;
+        if (![server acceptOnPort:24864 error:&error]) {
+            NSLog(@"error creating server: %@", error);
+            return nil;
+        }
+    }
+    connectedSockets = [[NSMutableArray alloc] initWithCapacity:1];
+    return [super init];
+}
+
+- (void)socket:(GCDAsyncSocket *)sock didAcceptNewSocket:(GCDAsyncSocket *)newSocket {
+    @synchronized(connectedSockets)
+    {
+        [connectedSockets addObject:newSocket];
+    }
+    NSLog(@"got connection");
+    NSString *initResponse = @"\x03WEL";
+    NSData *initResp = [initResponse dataUsingEncoding:NSASCIIStringEncoding];
+    [newSocket writeData:initResp withTimeout:-1 tag:0];
+    [newSocket readDataToLength:1 withTimeout:5 tag:0];
+}
+- (void)socket:(GCDAsyncSocket *)sock didWriteDataWithTag:(long)tag {}
+- (void)socket:(GCDAsyncSocket *)sock didReadData:(NSData *)data withTag:(long)tag {
+    switch (tag) {
+        case 0: {
+            // length
+            [sock readDataToLength:((uint8_t*)data.bytes)[0] withTimeout:1 tag:1];
+            break;
+        }
+        case 1: {
+            // data
+            if (data.length < 3) {
+                [sock disconnect];
+                return;
+            }
+            NSData *msgData = [data subdataWithRange:NSMakeRange(0, 3)];
+            NSString *message = [[NSString alloc] initWithData:msgData encoding:NSASCIIStringEncoding];
+            if ([message isEqualToString:@"LED"] && data.length >= 99) {
+                NSLog(@"received led update");
+                NSData *led = [data subdataWithRange:NSMakeRange(3, 96)];
+                [self.parentVc updateLed:led];
+            }
+            
+            [sock readDataToLength:1 withTimeout:5 tag:0];
+        }
+    }
+}
+- (void)socketDidDisconnect:(GCDAsyncSocket *)sock withError:(NSError *)err {
+    if (sock != server)
+    {
+        NSLog(@"connection ended");
+        @synchronized(connectedSockets)
+        {
+            [connectedSockets removeObject:sock];
+        }
+    }
+}
+
+@end
+

Brokenithm-iOS/ViewController.h

@@ -6,10 +6,21 @@
 //  Copyright © 2020 esterTion. All rights reserved.
 //
 
+#pragma once
+
+@class SocketDelegate;
+
 #import <UIKit/UIKit.h>
+#import <CocoaAsyncSocket/GCDAsyncSocket.h>
+#import "SocketDelegate.h"
 
-@interface ViewController : UIViewController
+@interface ViewController : UIViewController {
+    SocketDelegate *server;
+}
+@property UIView *airIOView;
+@property UIView *sliderIOView;
+@property CAGradientLayer *ledBackground;
 
+-(void)updateLed:(NSData*)rgbData;
 
 @end
-

Brokenithm-iOS/ViewController.m

@@ -10,17 +10,21 @@
 
 @interface ViewController ()
 
-@property UIView *airIOView;
-@property UIView *sliderIOView;
-@property CAGradientLayer *ledBackground;
-
 @end
 
 @implementation ViewController
 
 - (void)viewDidLoad {
     [super viewDidLoad];
-    // Do any additional setup after loading the view, typically from a nib.
+    
+    // network permission
+    {
+        NSURLRequest *req = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://captive.apple.com/"]];
+        [NSURLConnection sendAsynchronousRequest:req
+                                           queue:[NSOperationQueue mainQueue]
+                               completionHandler:^(NSURLResponse *resp, NSData *data, NSError *error) {}];
+    }
+    
     CGRect screenSize = [UIScreen mainScreen].bounds;
     float screenWidth = screenSize.size.width;
     float screenHeight = screenSize.size.height;
@@ -30,8 +34,6 @@
     self.sliderIOView = [[UIView alloc] initWithFrame:CGRectMake(0, offsetY, screenWidth, sliderHeight)];
     [self.view addSubview:self.airIOView];
     [self.view addSubview:self.sliderIOView];
-    //self.airIOView.backgroundColor = [UIColor blueColor];
-    //self.sliderIOView.backgroundColor = [UIColor redColor];
     self.ledBackground = [CAGradientLayer layer];
     self.ledBackground.frame = CGRectMake(0, 0, screenWidth, sliderHeight);
     [self.sliderIOView.layer addSublayer:self.ledBackground];
@@ -67,11 +69,15 @@
         [self.sliderIOView addSubview:sliderInput];
     }
     
+    server = [[SocketDelegate alloc] init];
+    server.parentVc = self;
+    NSLog(@"server created");
     
     dispatch_async(dispatch_get_main_queue(), ^(){
         char ledDataChar[32*3] = {0,254,254,0,254,254,0,254,254,0,0,0,254,254,254,254,254,254,254,254,254,0,0,0,10,10,10,10,10,10,10,10,10,0,0,0,0,254,128,0,254,128,0,254,128,0,254,128,0,254,128,0,254,128,0,254,128,0,0,0,0,0,254,0,0,254,0,0,254,0,0,254,0,0,254,0,0,0,0,0,254,0,0,254,0,0,254,0,0,254,0,0,254,0,0,0};
         NSData *ledData = [NSData dataWithBytes:ledDataChar length:32*3];
         [self updateLed:ledData];
+        NSLog(@"displayed demo led");
     });
 }