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iOS：根據日志去定位網絡請求發生的錯誤是由於服務端造成的，還是客戶端造成的？

本文轉載自   查看原文   2016-12-26 00:52   1644    iOS高級

一、介紹

在項目開發中，服務端和客戶端的協作尤為重要，而連接它們的最重要的環節之一就是網絡請求，對於服務端而言，如果這個環節出現了錯誤，那么安全性就無從談起，同時對於客戶端而言，如果這個模塊出現了錯誤，那么后續的開發就無法繼續進行下去。誠然，當網絡請求真的出現了問題，快速定位問題的源頭就顯得迫在眉睫了。本博文提供三種定位問題源頭的方法，判斷是服務端的原因，還是客戶端的原因，避免大家找問題浪費大量的無用功。

 

二、ATS

一個配置網絡請求方式的配置字段，NSAppTranportSecurity下的 Allow Arbitrary Loads，設置為NO，默認所有的網絡請求都必須走HTTPS(SSL/TLS)協議；如果設置為YES，即是全局設置，既可以走HTTP協議，也可以走HTPPS(SSL/TLS)協議。

 

三、問題定位方式(查看網絡請求的詳細log日志)

第一種方式：配置CFNETWORK_DIAGNOSTICS=1

步驟：打開xcode的項目，找到edit scheme中的run，然后選擇Arguments,給Envaironment Variables添加CFNETWORK_DIAGNOSTICS=1，最后運行程序發送網絡請求即可。此時在consolelog控制器會給出網絡請求詳細的log日志文件路徑，根據路徑找到就OK了。配置如圖：

點擊按鈕測試發送請求，我以我公司的官方來測試（本公司服務端已做了https配置） 

//  ViewController.m
//  RequestDemo
//  Created by 夏遠全 on 16/12/25.
//  Copyright © 2016年 廣州市東德網絡科技有限公司. All rights reserved.
#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor whiteColor];
    
    //發送請求
    UIButton *requestBtn = [[UIButton alloc] initWithFrame:CGRectMake(140, 200, 200, 80)];
    requestBtn.backgroundColor = [UIColor redColor];
    [requestBtn setTitle:@"requestSend" forState:UIControlStateNormal];
    [requestBtn setTitleColor:[UIColor greenColor] forState:UIControlStateNormal];
    [requestBtn addTarget:self action:@selector(requestSend) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:requestBtn];
}

//發送請求
-(void)requestSend{
    
    NSURL *URL = [NSURL URLWithString:@"https://www.biaojiepay.com"];
    NSURLRequest *request = [NSURLRequest requestWithURL:URL];
    [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue currentQueue] completionHandler:^(NSURLResponse * _Nullable response, NSData * _Nullable data, NSError * _Nullable connectionError) {
        NSLog(@"complete");
    }];
}
@end

打印的顯示log日志文件路徑如下：

2016-12-26 00:29:26.910 RequestDemo[966:51790] CFNetwork diagnostics log file created at: /Users/FanLei/Library/Developer/CoreSimulator/Devices/C4192179-66A1-40C6-B09B-095C1248F68E/data/Containers/Data/Application/FE58F06E-B7BC-428E-82AE-0ED0A567ACD1/Library/Logs/CrashReporter/CFNetwork_com.biaojiepay.RequestDemo_966.nwlrb.log
2016-12-26 00:29:27.049 RequestDemo[966:50107] complete

此時按照提供的路徑去訪問該文件查看，里面記錄了網絡請求的詳細日志信息

Dec 26 00:29:26  RequestDemo[966] <Notice>: CFNetwork Diagnostics [1:1] 00:29:26.910 {
    LoaderWhatToDo
        Request: <CFURL 0x7ff8ea816690 [0x10420ba40]>{string = https://www.biaojiepay.com/, encoding = 134217984, base = (null)}
    CachePolicy: 0
       WhatToDo: originload
    CreateToNow: 0.02034s
    } [1:1]
Dec 26 00:29:26  RequestDemo[966] <Notice>: CFNetwork Diagnostics [1:2] 00:29:26.912 {
    AddCookies Continue: request GET https://www.biaojiepay.com/ HTTP/1.1
           HTTPProtocol: Task: e8ca1fd0
    } [1:2]
Dec 26 00:29:26  RequestDemo[966] <Notice>: CFNetwork Diagnostics [1:3] 00:29:26.912 {
    DiskCookieStorage Construction: Binary{ Disk Cookies: { /Users/FanLei/Library/Developer/CoreSimulator/Devices/C4192179-66A1-40C6-B09B-095C1248F68E/data/Containers/Data/Application/FE58F06E-B7BC-428E-82AE-0ED0A567ACD1/Library/Cookies/com.biaojiepay.RequestDemo.binarycookies, <0 cookies in 0 domains> clean not writing } }
                         Accessing: <CFURL 0x7ff8e8ead9f0 [0x10420ba40]>{string = file:///Users/FanLei/Library/Developer/CoreSimulator/Devices/C4192179-66A1-40C6-B09B-095C1248F68E/data/Containers/Data/Application/FE58F06E-B7BC-428E-82AE-0ED0A567ACD1/Library/Cookies/com.biaojiepay.RequestDemo.binarycookies, encoding = 134217984, base = (null)}
                              Path: /Users/FanLei/Library/Developer/CoreSimulator/Devices/C4192179-66A1-40C6-B09B-095C1248F68E/data/Containers/Data/Application/FE58F06E-B7BC-428E-82AE-0ED0A567ACD1/Library/Cookies/com.biaojiepay.RequestDemo.binarycookies
                    Read from disk: <0 cookies in 0 domains>
                             Dirty: NO
                           Writing: NO
                            Policy: 2
    } [1:3]
Dec 26 00:29:26  RequestDemo[966] <Notice>: CFNetwork Diagnostics [1:4] 00:29:26.913 {
    DiskCookieStorage Journaling On: Binary{ Disk Cookies: { /Users/FanLei/Library/Developer/CoreSimulator/Devices/C4192179-66A1-40C6-B09B-095C1248F68E/data/Containers/Data/Application/FE58F06E-B7BC-428E-82AE-0ED0A567ACD1/Library/Cookies/com.biaojiepay.RequestDemo.binarycookies, <0 cookies in 0 domains> clean not writing } }
                               File: <CFURL 0x7ff8e8caa490 [0x10420ba40]>{string = file:///Users/FanLei/Library/Developer/CoreSimulator/Devices/C4192179-66A1-40C6-B09B-095C1248F68E/data/Containers/Data/Application/FE58F06E-B7BC-428E-82AE-0ED0A567ACD1/Library/Cookies/com.biaojiepay.RequestDemo.binarycookies, encoding = 134217984, base = (null)}
    } [1:4]
Dec 26 00:29:26  RequestDemo[966] <Notice>: CFNetwork Diagnostics [1:5] 00:29:26.913 {
    Protocol Enqueue: request GET https://www.biaojiepay.com/ HTTP/1.1
             Request: <CFURLRequest 0x7ff8ea816700 [0x10420ba40]> {url = https://www.biaojiepay.com/, cs = 0x0}
             Message: GET https://www.biaojiepay.com/ HTTP/1.1
    } [1:5]
Dec 26 00:29:27  RequestDemo[966] <Notice>: CFNetwork Diagnostics [1:6] 00:29:27.001 {
    Peer certificate
    Subject Sum: www.biaojiepay.com
        Summary: Symantec Basic DV SSL CA - G1
    } [1:6]
Dec 26 00:29:27  RequestDemo[966] <Notice>: CFNetwork Diagnostics [1:7] 00:29:27.008 {
    Authentication Challenge
       Loader: <CFURLRequest 0x7ff8e8c9ba60 [0x10420ba40]> {url = https://www.biaojiepay.com, cs = 0x0}
    Challenge: challenge space https://www.biaojiepay.com:443/, ServerTrustEvaluationRequested (Hash c4e968442f77296)
    } [1:7]
Dec 26 00:29:27  RequestDemo[966] <Notice>: CFNetwork Diagnostics [1:8] 00:29:27.008 {
    Use Credential
        Loader: <CFURLRequest 0x7ff8e8c9ba60 [0x10420ba40]> {url = https://www.biaojiepay.com, cs = 0x0}
    Credential: null
    } [1:8]
Dec 26 00:29:27  RequestDemo[966] <Notice>: CFNetwork Diagnostics [1:9] 00:29:27.009 {
     touchConnection
              Loader: <CFURLRequest 0x7ff8e8c9ba60 [0x10420ba40]> {url = https://www.biaojiepay.com, cs = 0x0}
    Timeout Interval: 60.000 seconds
    } [1:9]
Dec 26 00:29:27  RequestDemo[966] <Notice>: CFNetwork Diagnostics [1:10] 00:29:27.046 {
    Protocol Received: request GET https://www.biaojiepay.com/ HTTP/1.1
             Response: HTTP/1.1 200 OK
    } [1:10]
Dec 26 00:29:27  RequestDemo[966] <Notice>: CFNetwork Diagnostics [1:11] 00:29:27.046 {
     touchConnection
              Loader: <CFURLRequest 0x7ff8e8c9ba60 [0x10420ba40]> {url = https://www.biaojiepay.com, cs = 0x0}
    Timeout Interval: 60.000 seconds
    } [1:11]
Dec 26 00:29:27  RequestDemo[966] <Notice>: CFNetwork Diagnostics [1:12] 00:29:27.046 {
    destroyReadStream: request GET https://www.biaojiepay.com/ HTTP/1.1
              Request: <CFURLRequest 0x7ff8ea816700 [0x10420ba40]> {url = https://www.biaojiepay.com/, cs = 0x0}
                 sent: <CFNumber 0xb000000000000c53 [0x10420ba40]>{value = +197, type = kCFNumberSInt64Type}
             received: <CFNumber 0xb00000000000d213 [0x10420ba40]>{value = +3361, type = kCFNumberSInt64Type}
            cell sent: <CFNumber 0xb000000000000003 [0x10420ba40]>{value = +0, type = kCFNumberSInt64Type}
        cell received: <CFNumber 0xb000000000000003 [0x10420ba40]>{value = +0, type = kCFNumberSInt64Type}
    } [1:12]
Dec 26 00:29:27  RequestDemo[966] <Notice>: CFNetwork Diagnostics [1:13] 00:29:27.047 {
     touchConnection
              Loader: <CFURLRequest 0x7ff8e8c9ba60 [0x10420ba40]> {url = https://www.biaojiepay.com, cs = 0x0}
    Timeout Interval: 60.000 seconds
    } [1:13]
Dec 26 00:29:27  RequestDemo[966] <Notice>: CFNetwork Diagnostics [1:14] 00:29:27.047 {
    Response Complete
    Request: <CFURLRequest 0x7ff8ea816700 [0x10420ba40]> {url = https://www.biaojiepay.com/, cs = 0x0}
    } [1:14]
Dec 26 00:29:27  RequestDemo[966] <Notice>: CFNetwork Diagnostics [1:15] 00:29:27.047 {
             Did Finish
                 Loader: <CFURLRequest 0x7ff8e8c9ba60 [0x10420ba40]> {url = https://www.biaojiepay.com, cs = 0x0}
    init to origin load: 0.021334s
             total time: 0.15739s
            total bytes: 10656
    } [1:15]
Dec 26 00:29:27  RequestDemo[966] <Notice>: CFNetwork Diagnostics [1:16] 00:29:27.048 {
     touchConnection
              Loader: <CFURLRequest 0x7ff8e8c9ba60 [0x10420ba40]> {url = https://www.biaojiepay.com, cs = 0x0}
    Timeout Interval: 60.000 seconds
    } [1:16]
Dec 26 00:29:27  RequestDemo[966] <Notice>: CFNetwork Diagnostics [1:17] 00:29:27.048 {
    ~HTTPProtocol: nullptr request
          Request: null
             sent: 197
         received: 3361
        cell sent: 0
    cell received: 0
    } [1:17]
Dec 26 00:29:28  RequestDemo[966] <Notice>: CFNetwork Diagnostics [1:18] 00:29:28.914 {
    DiskCookieStorage Sync Request
       Forced: no
      isDirty: no
    isWriting: no
         File: <CFURL 0x7ff8e8eb0cb0 [0x10420ba40]>{string = file:///Users/FanLei/Library/Developer/CoreSimulator/Devices/C4192179-66A1-40C6-B09B-095C1248F68E/data/Containers/Data/Application/FE58F06E-B7BC-428E-82AE-0ED0A567ACD1/Library/Cookies/com.biaojiepay.RequestDemo.binarycookies, encoding = 134217984, base = (null)}
      Journal: yes
    Mutations: 0
    } [1:18]
View Code

 

第二種方式：采用mac自帶的命令行查看網絡請求日志，即/usr/bin/nscurl --ats-diagnostics --verbose https://www.biaojiepay.com(這個是帶上的測試網址)

使用該命令行發送請求測試，我以我公司的官方來測試（本公司服務端已做了https配置，所有驗證都會通過Pass）

終端運行結果如下：可以看到全都支持，所以pass通過

Last login: Sun Dec 25 23:55:12 on ttys003
FanLeideMacBook-Pro:~ FanLei$ /usr/bin/nscurl --ats-diagnostics --verbose https://www.biaojiepay.com
Starting ATS Diagnostics

Configuring ATS Info.plist keys and displaying the result of HTTPS loads to https://www.biaojiepay.com.
A test will "PASS" if URLSession:task:didCompleteWithError: returns a nil error.
================================================================================

Default ATS Secure Connection
---
ATS Default Connection
ATS Dictionary:
{
}
Result : PASS
---

================================================================================

Allowing Arbitrary Loads

---
Allow All Loads
ATS Dictionary:
{
    NSAllowsArbitraryLoads = true;
}
Result : PASS
---

================================================================================

Configuring TLS exceptions for www.biaojiepay.com

---
TLSv1.2
ATS Dictionary:
{
    NSExceptionDomains =     {
        "www.biaojiepay.com" =         {
            NSExceptionMinimumTLSVersion = "TLSv1.2";
        };
    };
}
Result : PASS
---

---
TLSv1.1
ATS Dictionary:
{
    NSExceptionDomains =     {
        "www.biaojiepay.com" =         {
            NSExceptionMinimumTLSVersion = "TLSv1.1";
        };
    };
}
Result : PASS
---

---
TLSv1.0
ATS Dictionary:
{
    NSExceptionDomains =     {
        "www.biaojiepay.com" =         {
            NSExceptionMinimumTLSVersion = "TLSv1.0";
        };
    };
}
Result : PASS
---

================================================================================

Configuring PFS exceptions for www.biaojiepay.com

---
Disabling Perfect Forward Secrecy
ATS Dictionary:
{
    NSExceptionDomains =     {
        "www.biaojiepay.com" =         {
            NSExceptionRequiresForwardSecrecy = false;
        };
    };
}
Result : PASS
---

================================================================================

Configuring PFS exceptions and allowing insecure HTTP for www.biaojiepay.com

---
Disabling Perfect Forward Secrecy and Allowing Insecure HTTP
ATS Dictionary:
{
    NSExceptionDomains =     {
        "www.biaojiepay.com" =         {
            NSExceptionAllowsInsecureHTTPLoads = true;
            NSExceptionRequiresForwardSecrecy = false;
        };
    };
}
Result : PASS
---

================================================================================

Configuring TLS exceptions with PFS disabled for www.biaojiepay.com

---
TLSv1.2 with PFS disabled
ATS Dictionary:
{
    NSExceptionDomains =     {
        "www.biaojiepay.com" =         {
            NSExceptionMinimumTLSVersion = "TLSv1.2";
            NSExceptionRequiresForwardSecrecy = false;
        };
    };
}
Result : PASS
---

---
TLSv1.1 with PFS disabled
ATS Dictionary:
{
    NSExceptionDomains =     {
        "www.biaojiepay.com" =         {
            NSExceptionMinimumTLSVersion = "TLSv1.1";
            NSExceptionRequiresForwardSecrecy = false;
        };
    };
}
Result : PASS
---

---
TLSv1.0 with PFS disabled
ATS Dictionary:
{
    NSExceptionDomains =     {
        "www.biaojiepay.com" =         {
            NSExceptionMinimumTLSVersion = "TLSv1.0";
            NSExceptionRequiresForwardSecrecy = false;
        };
    };
}
Result : PASS
---

================================================================================

Configuring TLS exceptions with PFS disabled and insecure HTTP allowed for www.biaojiepay.com

---
TLSv1.2 with PFS disabled and insecure HTTP allowed
ATS Dictionary:
{
    NSExceptionDomains =     {
        "www.biaojiepay.com" =         {
            NSExceptionAllowsInsecureHTTPLoads = true;
            NSExceptionMinimumTLSVersion = "TLSv1.2";
            NSExceptionRequiresForwardSecrecy = false;
        };
    };
}
Result : PASS
---

---
TLSv1.1 with PFS disabled and insecure HTTP allowed
ATS Dictionary:
{
    NSExceptionDomains =     {
        "www.biaojiepay.com" =         {
            NSExceptionAllowsInsecureHTTPLoads = true;
            NSExceptionMinimumTLSVersion = "TLSv1.1";
            NSExceptionRequiresForwardSecrecy = false;
        };
    };
}
Result : PASS
---

---
TLSv1.0 with PFS disabled and insecure HTTP allowed
ATS Dictionary:
{
    NSExceptionDomains =     {
        "www.biaojiepay.com" =         {
            NSExceptionAllowsInsecureHTTPLoads = true;
            NSExceptionMinimumTLSVersion = "TLSv1.0";
            NSExceptionRequiresForwardSecrecy = false;
        };
    };
}
Result : PASS
---

================================================================================

FanLeideMacBook-Pro:~ FanLei$
View Code

 

第三種方式：如果是服務端的問題，可以采用TLSTool來幫助你定位。（坑：TSLTool不能再Xcode8下編譯）

下載鏈接：https://developer.apple.com/library/content/samplecode/sc1236/Introduction/Intro.html#//apple_ref/doc/uid/DTS40014927

先下載工具編譯后，再在終端測試示例：我以我公司的官方來測試，端口443（本公司服務端已做了https配置，所有驗證都會通過Pass）

./TLSTool s_client -connect  www.biaojiepay.com:443

GET https://www.biaojiepay.com  HTTP/1.1

Host: www.biajiepay.com

 


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