Troubleshooting of curl errors: Difference between revisions
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When I tried to crawl the web resource but met the error message: "Error 405 Method Not Allowed" | When I tried to crawl the web resource but met the error message: "Error 405 Method Not Allowed" | ||
Solution: | Solution: Make sure using the correct HTTP request method<ref>[https://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html HTTP/1.1: Method Definitions]</ref> e.g. {{kbd | key=GET}} or {{kbd | key=POST}} to access the web resource. | ||
== How to resolve Error 415 Unsupported Media Type == | == How to resolve Error 415 Unsupported Media Type == | ||
Revision as of 19:13, 29 May 2020
cUrl "is used in command lines or scripts to transfer data."[1] (alternative library to achive sampe purpose: (1) PHP naive Client URL Library (2) cURL class for PHP (3) Installing cURL on Cygwin on Windows)
How to resolve cUrl error (#5): Unsupported proxy syntax
Condition: the username of socks5 proxy contains @ symbol such as [email protected]
curl_setopt($ch, CURLOPT_PROXY, 'socks5://username:password@localhost:12345'); // result is ok curl_setopt($ch, CURLOPT_PROXY, 'socks5://[email protected]:password@localhost:12345'); // met cUrl error (#5): Unsupported proxy syntax
Solution: Escape the special symbol[1] using URL Encode and Decode - Online or urlencode function
curl_setopt($ch, CURLOPT_PROXY, 'socks5://bob%40email.com:password@localhost:12345'); // result is ok
How to resolve cUrl error (#56): OpenSSL SSL_read: No error.
Condition: The curl vesion 7.67.0 on windows met problem. Result of curl_version returned:
version: Array
(
[version_number] => 475904
[age] => 5
[features] => 2953117
[ssl_version_number] => 0
[version] => 7.67.0
[host] => x86_64-pc-win32
[ssl_version] => OpenSSL/1.1.1d
[libz_version] => 1.2.11
)
Solution: Use other version of curl command or curl on Cygwin or cURL class for PHP.
Related articles
How to resolve Error 405 Method Not Allowed
When I tried to crawl the web resource but met the error message: "Error 405 Method Not Allowed"
Solution: Make sure using the correct HTTP request method[2] e.g. GET or POST to access the web resource.
How to resolve Error 415 Unsupported Media Type
When I tried to POST JSON (as payload) but met the error message: "Error 415 Unsupported Media Type"
Solution: Set the cUrl with the header Content-Type: application/json[3]
curl -X POST --header "Content-Type: application/json" --data '{"user" : "your_user_name", "token" : "your_token"}' "https://example.com/"
References
Troubleshooting of ...
- PHP, cUrl, Python, selenium, HTTP status code errors
- Database: SQL syntax debug, MySQL errors, MySQLTuner errors or PostgreSQL errors
- HTML/Javascript: Troubleshooting of javascript, XPath
- Software: Mediawiki, Docker, FTP problems, online conference software
- Test connectivity for the web service, Web Ping, Network problem, Web user behavior, Web scrape troubleshooting
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