Expressions for extracting segments of URLs

September 14, 2021

Contributed by:

S C S

You can extract URLs and portions of URLs, such as the host name, or a segment of the URL path. For example, the following expression identifies HTTP requests for image files by extracting image file suffixes from the URL:

http.req.url.suffix.eq("jpeg") || http.req.url.suffix.eq("gif")

Most expressions for URLs operate on text and are described in在HTTP请求和前缀表达式的文本Responses. This section discusses the GET operation. The GET operation extracts text when used with the following prefixes:

HTTP.REQ.URL.PATH
VPN.BASEURL.PATH
VPN.CLIENTLESS_BASEURL.PATH

The following table describes prefixes for HTTP URLs.

URL Prefix	Description
HTTP.REQ.URL.PATH.GET()	Returns a slash- (“/”) separated list from the URL path. For example, consider the following URL:. The following expression returns dir1 from this URL:. The following expression returns dir2: http.req.url.path.get(2)
HTTP.REQ.URL.PATH.GET_REVERSE()	Returns a slash- (“/”) separated list from the URL path, starting from the end of the path. For example, consider the following URL:. The following expression returns index.html from this URL:. The following expression returns dir3: http.req.url.path.get_reverse(1)

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Expressions for extracting segments of URLs

September 14, 2021

Contributed by:

S C S

September 14, 2021

Contributed by:

S C S

Expressions for extracting segments of URLs

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