Ruby：检查 URI 是否为 HTTPS？

发布于 2024-08-20 20:49:36 字数 516 浏览 5 评论 0原文

我想检查 URI 是否需要 SSL 身份验证：

url = URI.parse("http://www.google.com")

# [some code]

if url.instance_of? URI::HTTPS
   http.use_ssl=true
   http.verify_mode = OpenSSL::SSL::VERIFY_NONE
end

但是，这几行会抛出以下错误。

/usr/lib/ruby/1.8/uri/common.rb:436:in `split': bad URI(is not URI?): HTTPS (URI::InvalidURIError)
    from /usr/lib/ruby/1.8/uri/common.rb:485:in `parse'
    from /usr/lib/ruby/1.8/uri/common.rb:608:in `URI'
    from links.rb:18

为什么会发生这种情况？

原文

I would like to check if the URI will need SSL authentication:

url = URI.parse("http://www.google.com")

# [some code]

if url.instance_of? URI::HTTPS
   http.use_ssl=true
   http.verify_mode = OpenSSL::SSL::VERIFY_NONE
end

However, those few lines throw the following error..

/usr/lib/ruby/1.8/uri/common.rb:436:in `split': bad URI(is not URI?): HTTPS (URI::InvalidURIError)
    from /usr/lib/ruby/1.8/uri/common.rb:485:in `parse'
    from /usr/lib/ruby/1.8/uri/common.rb:608:in `URI'
    from links.rb:18

Why is it happening?

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自演自醉 2024-08-27 20:49:36

>> uri = URI.parse("http://www.google.com")
=> #<URI::HTTP:0x1014ca458 URL:http://www.google.com>
>> uri.scheme
=> "http"
>> uri = URI.parse("https://mail.google.com")
=> #<URI::HTTPS:0x1014c2e60 URL:https://mail.google.com>
>> uri.scheme
=> "https"

因此，您可以根据简单的“https”字符串检查 uri 的方案。

>> uri = URI.parse("http://www.google.com")
=> #<URI::HTTP:0x1014ca458 URL:http://www.google.com>
>> uri.scheme
=> "http"
>> uri = URI.parse("https://mail.google.com")
=> #<URI::HTTPS:0x1014c2e60 URL:https://mail.google.com>
>> uri.scheme
=> "https"

So you could check uri's scheme against simple "https" string.

回复收藏 0 原文

无妨# 2024-08-27 20:49:36

如上一个答案所示，HTTP 和 HTTPS 是不同的类。
特别是，HTTPS 是 HTTP 类的子类。因此您可以使用 instance_of? 进行检查。

http  = URI.parse "http://example.com"
https = URI.parse "https://example.com"

http.instance_of?  URI::HTTPS  #=> false
https.instance_of? URI::HTTPS  #=> true

但如果这个层次结构发生改变，那么你的代码可能会崩溃，因此上面的答案可能更适合未来。

as shown in the previous answer, HTTP and HTTPS are different classes.
in particular, HTTPS is a subclass of the HTTP class. thus you could check with instance_of?.

http  = URI.parse "http://example.com"
https = URI.parse "https://example.com"

http.instance_of?  URI::HTTPS  #=> false
https.instance_of? URI::HTTPS  #=> true

but if this hierarchy ever gets changed, then your code could break, thus the above answer might be more future-proof.

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~没有更多了~