一.日志監(jiān)控

I.自己寫API調(diào)用

II.定義宏替換

 #define NSLog(frmt,...) LogAPI(frmt,##__VA_ARGS__)
 （##__VA_ARGS__可變參數(shù)宏贼陶，##去掉只有一個(gè)參數(shù)時(shí)的,號(hào)）

III.使用官方提供的框架

ASL apple system log （已棄用）ios(8.0,10.0)
NSLog：
Logs an error message to the Apple System Log facility.

IIII.fishhook

fishhook可以將我們Mach-O的庫的符號(hào)表重新綁定
hook掉NSLog函數(shù),這邊采用這種方式

static void (* orig_nslog)(NSString *format, ...);
void redirect_nslog(NSString *format, ...) {
    // 可以在這里先進(jìn)行自己的處理
    // 繼續(xù)執(zhí)行原 NSLog
    orig_nslog(@"%@",[format stringByAppendingString:@"被HOOK了"]);
    va_list va;
    va_start(va, format);
    NSLogv(format, va);
    va_end(va);
}
- (void)openLogRecord
{
    struct rebinding nsLog;
    nsLog.name = "NSLog";
    nsLog.replacement = redirect_nslog;
    nsLog.replaced = (void *)&orig_nslog;
    struct rebinding rebinds[1] = {nsLog};
    rebind_symbols(rebinds, 1);
}

二.網(wǎng)絡(luò)監(jiān)控

I.NSURLProtocol

@class NSURLProtocol
@abstract NSURLProtocol is an abstract class which provides the
basic structure for performing protocol-specific loading of URL
data. Concrete subclasses handle the specifics associated with one
or more protocols or URL schemes.

抽象類，需要實(shí)現(xiàn)一個(gè)子類

+ (BOOL)canInitWithRequest:(NSURLRequest *)request
{
    if ([NSURLProtocol propertyForKey:request.URL.absoluteString.md5String inRequest:request]) {
        return NO;
    }
    
    NSString *url = request.URL.absoluteString;
    
    // 如果url以https開頭躲雅，則進(jìn)行攔截處理近弟，否則不處理
    if ([url hasPrefix:@"https"] ||[url hasPrefix:@"http"]) {
        return YES;
    }
    return NO;

}


/**
 * 如果需要對請求進(jìn)行重定向避除，添加指定頭部等操作，可以在該方法中進(jìn)行
 */
+ (NSURLRequest *)canonicalRequestForRequest:(NSURLRequest *)request {
    NSMutableURLRequest *req = [request mutableCopy];
    [NSURLProtocol setProperty:@(YES) forKey:request.URL.absoluteString.md5String inRequest:req];
    return req;
}

II.WKURLSchemeHandler

調(diào)用wkwebview的方法setURLSchemeHandler:forURLScheme:

    WKWebViewConfiguration *configuration = [[WKWebViewConfiguration alloc] init];
    if (@available(iOS 11.0, *)) {
        URLSchemeHandler *handler = [URLSchemeHandler new];
        [configuration setURLSchemeHandler:handler forURLScheme:@"https"];
        [configuration setURLSchemeHandler:handler forURLScheme:@"http"];
    } else {
        // Fallback on earlier versions
    }

聲明http辰斋，https需要攔截
直接攔截會(huì)導(dǎo)致崩潰退子，需要方法交換一下

+ (void)load {
  static dispatch_once_t onceToken;
  dispatch_once(&onceToken, ^{
    Method handlesURLScheme = class_getClassMethod(self, @selector(handlesURLScheme:));
    Method ssshandlesURLScheme = class_getClassMethod(self, @selector(ssshandlesURLScheme:));
    method_exchangeImplementations(handlesURLScheme, sshandlesURLScheme);
  });
}

+ (BOOL)ssshandlesURLScheme:(NSString *)urlScheme {
    if(DailyRecordManager.shared.type&DailyRecordAll ||
       DailyRecordManager.shared.type&DailyRecordRequest
       ){
        //返回NO,否則可能會(huì)中斷言， 'http' is a URL scheme that WKWebView handles natively
      if ([urlScheme isEqualToString:@"http"] || [urlScheme isEqualToString:@"https"]) {
        return NO;
      } else {
        return [self ssshandlesURLScheme:urlScheme];
      }
    }else{
        return [self ssshandlesURLScheme:urlScheme];
    }

}

//對于NSURLSession發(fā)起的網(wǎng)絡(luò)請求切端，我們發(fā)現(xiàn)通過shared得到的session發(fā)起的網(wǎng)絡(luò)請求都能夠監(jiān)聽到彻坛，但是通過方法sessionWithConfiguration:delegate:delegateQueue:得到的session，我們是不能監(jiān)聽到的踏枣，原因就出在NSURLSessionConfiguration上昌屉，我們進(jìn)到NSURLSessionConfiguration里面看一下，他有一個(gè)屬性 @property(nullable, copy)NSArray<Class>*protocolClasses;復(fù)制代碼
//我們能夠看出茵瀑，這是一個(gè)NSURLProtocol數(shù)組间驮，上面我們提到了，我們監(jiān)控網(wǎng)絡(luò)是通過注冊NSURLProtocol來進(jìn)行網(wǎng)絡(luò)監(jiān)控的马昨，但是通過sessionWithConfiguration:delegate:delegateQueue:得到的session竞帽，他的configuration中已經(jīng)有一個(gè)NSURLProtocol，所以他不會(huì)走我們的protocol來鸿捧，怎么解決這個(gè)問題呢屹篓？ 其實(shí)很簡單，我們將NSURLSessionConfiguration的屬性protocolClasses的get方法hook掉匙奴，通過返回我們自己的protocol堆巧，這樣，我們就能夠監(jiān)控到通過sessionWithConfiguration:delegate:delegateQueue:得到的session的網(wǎng)絡(luò)請求
//https://juejin.cn/post/6844903473671077895

因?yàn)榈谌絪dk有可能對wkwebview有封裝
所以直接hook掉wkwebview的configuration

+ (void)load {
  static dispatch_once_t onceToken;
  dispatch_once(&onceToken, ^{
      Method setConfiguration = class_getInstanceMethod(self, @selector(configuration));
    Method setSSSConfiguration = class_getInstanceMethod(self, @selector(SSSConfiguration));
    method_exchangeImplementations(setConfiguration, setSSSConfiguration);
      Method con = class_getInstanceMethod(self, @selector(initWithFrame:configuration:));
      Method ssscon = class_getInstanceMethod(self, @selector(sssinitWithFrame:configuration:));
    method_exchangeImplementations(setConfiguration, setSSSConfiguration);
      method_exchangeImplementations(con, ssscon);

  });
}

III.查看NSURLSession的請求連接開始時(shí)間結(jié)束時(shí)間重定向次數(shù)等具體信息泼菌，iOS10之后可以使用代理方法谍肤，iOS10之前可以使用libcurl

-(void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task didFinishCollectingMetrics:(NSURLSessionTaskMetrics *)metrics API_AVAILABLE(macosx(10.12), ios(10.0), watchos(3.0), tvos(10.0));
http://www.reibang.com/p/32935af04593
http://www.reibang.com/p/f146f8fdadbf

IIII.攔截console.log

使用js注入的方式

        [configuration.userContentController addScriptMessageHandler:self name:@"logger"];//js打印事件
          NSString *printContent = @"console.log = function(message){window.webkit.messageHandlers['logger'].postMessage(message)};";
          WKUserScript *userScript = [[WKUserScript alloc] initWithSource:printContent injectionTime:WKUserScriptInjectionTimeAtDocumentEnd forMainFrameOnly:YES];
          [configuration.userContentController addUserScript:userScript];

http://www.reibang.com/p/840e049741bc

https://juejin.cn/post/6844903552385564679#comment

三.崩潰監(jiān)控

NSSetUncaughtExceptionHandler();//設(shè)置崩潰時(shí)走的函數(shù)
NSGetUncaughtExceptionHandler();//獲取崩潰處理函數(shù)

ios崩潰分類：

1.未捕獲異常分類
2.底層信號(hào)崩潰

未捕獲異常處理：

static NSUncaughtExceptionHandler *oldUncaughtExceptionHandler = nil;

void uncaughtExceptionHandler(NSException *exception) {
    //記錄日志等操作 舊崩潰函數(shù)處理
    // Internal error reporting
}

oldUncaughtExceptionHandler  =  NSGetUncaughtExceptionHandler();
    NSGetUncaughtExceptionHandler(&uncaughtExceptionHandler);//獲取崩潰處理函數(shù)

底層信號(hào)崩潰

void SignalExceptionHandler(int signal){
    NSLog(@"signal: %d", signal);
    [DailyRecordManager.shared logType:(DailyRecordCrash) message:@(signal)];

}

- (void)crashSingleHandler{
    signal(SIGABRT, SignalExceptionHandler);
    signal(SIGILL, SignalExceptionHandler);
    signal(SIGSEGV, SignalExceptionHandler);
    signal(SIGFPE, SignalExceptionHandler);
    signal(SIGBUS, SignalExceptionHandler);

}

[https://blog.csdn.net/u012390519/article/details/51682951]
(https://blog.csdn.net/u012390519/article/details/51682951)
https://segmentfault.com/a/1190000039111381