HTTP protocol Debug Proxy tool fiddler

Fiddler is a Web debugging tool that records all client-to-server HTTP requests. When Fiddler starts, it will default to the 127.0.0.1:8888 of IE browser, and other browsers will be set manually.

Working principle:

fiddler is in the form of a proxy Web server, which uses proxy addresses: 127.0.0.1 port: 8888

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Fiddler Crawl HTTPS settings:

1. Start Fiddler, open the Tools>telerik Fiddler options in the menu bar, and Open the Fiddler Options dialog box.

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2. Set the Fiddler:

• 
  

  • Open the toolbar->tools->fiddler Options->https

  • Select Capture HTTPS connects (catch HTTPS connection)

  • Select decrypt HTTPS traffic (decrypt HTTPS communication)

  • In addition, set Fiddler to get HTTPS requests for all the processes in the machine, so the drop-down menu in the middle selects from all process,

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3. Configure Windows Trust this root certificate for fiddler to resolve security Warning: Trust root Certificate (Trusted root certificate)

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4.Fiddler main Menu Tools->fiddler Options->connections

• • Select Allow remote computers to connect (allows connection remotely)

  • Act as System Proxy on startup (as a system boot agent)

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5. Restart the fiddler to make the configuration effective (necessary)

Fiddler capturing Chrome's session:

1. Install the Switchyomega agent Chrome browser plugin

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2., set the proxy server to 127.0.0.1:8888

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3. Switch the set-up agent via the browser plugin

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Fiddler interface:

After the setup is complete, the native HTTP communication will pass through the 127.0.0.1:8888 proxy, and it will be intercepted by fiddler.

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The request section is detailed:

headers--displays the header of the HTTP request sent by the client to the server, displayed as a hierarchical view that contains WEB client information, cookies, transmission status, and so on. textview--displays the body part of the POST request as text. webforms--displays the requested GET parameters and the POST body contents. hexview--displays the request with hexadecimal data. auth--Displays the Proxy-authorization (proxy authentication) and Authorization (authorization) information in the response header. raw--displays the entire request as plain text. JSON-Displays the JSON format file. xml--if the body of the request is in XML format, it is displayed with a hierarchical XML tree.

The response (Response) section is detailed:

transformer--Displays the encoding information for the response. headers--displays the header of the response with a graduated view. The textview--uses text to display the corresponding body. imagevies--If the request is a picture resource, display a picture of the response. hexview--displays the response with hexadecimal data. The webview--responds to the preview effect in the Web browser. auth--Displays the Proxy-authorization (proxy authentication) and Authorization (authorization) information in the response header. caching--displays the cached information for this request. privacy--Displays the private (P3P) information for this request. raw--displays the entire response as plain text. JSON-Displays the JSON format file. xml--if the body of the response is in XML format, it is displayed with a hierarchical XML tree.

HTTP protocol Debug Proxy tool fiddler