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2e160c9c65
Add support for command line variables. Set variables with --variable
name=content or --variable name@file (where "file" can be stdin if set
to a single dash (-)).
Variable content is expanded in option parameters using "{{name}}"
(without the quotes) if the option name is prefixed with
"--expand-". This gets the contents of the variable "name" inserted, or
a blank if the name does not exist as a variable. Insert "{{" verbatim
in the string by prefixing it with a backslash, like "\\{{".
Import an environment variable with --variable %name. It makes curl exit
with an error if the environment variable is not set. It can also rather
get a default value if the variable does not exist, using =content or
@file like shown above.
Example: get the USER environment variable into the URL:
--variable %USER
--expand-url = "https://example.com/api/{{USER}}/method"
When expanding variables, curl supports a set of functions that can make
the variable contents more convenient to use. It can trim leading and
trailing white space with "trim", output the contents as a JSON quoted
string with "json", URL encode it with "url" and base 64 encode it with
"b64". To apply functions to a variable expansion, add them colon
separated to the right side of the variable. They are then performed in
a left to right order.
Example: get the contents of a file called $HOME/.secret into a variable
called "fix". Make sure that the content is trimmed and percent-encoded
sent as POST data:
--variable %HOME=/home/default
--expand-variable fix@{{HOME}}/.secret
--expand-data "{{fix:trim:url}}"
https://example.com/
Documented. Many new test cases.
Co-brainstormed-by: Emanuele Torre
Assisted-by: Jat Satiro
Closes #11346
60 lines
1.1 KiB
Plaintext
60 lines
1.1 KiB
Plaintext
<testcase>
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<info>
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<keywords>
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HTTP
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variables
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</keywords>
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</info>
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#
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# Server-side
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<reply>
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<data crlf="yes">
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HTTP/1.1 200 OK
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Date: Tue, 09 Nov 2010 14:49:00 GMT
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Server: test-server/fake
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Last-Modified: Tue, 13 Jun 2000 12:10:00 GMT
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ETag: "21025-dc7-39462498"
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Accept-Ranges: bytes
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Content-Length: 6
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Connection: close
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Content-Type: text/html
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Funny-head: yesyes
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-foo-
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</data>
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</reply>
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#
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# Client-side
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<client>
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<server>
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http
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</server>
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<name>
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Variable from file that is JSON and URL encoded (with null byte)
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</name>
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<file name="%LOGDIR/junk">
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%hex[%01%02%03%00%04%05%06]hex%
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</file>
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<command>
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http://%HOSTIP:%HTTPPORT/%TESTNUMBER --variable what@%LOGDIR/junk --variable second=hello --variable second=again --expand-data "--{{what:trim:json}}22{{none}}--{{second}}{{what:trim:url}}"
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</command>
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</client>
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#
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# Verify data after the test has been "shot"
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<verify>
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<protocol crlf="yes" nonewline="yes">
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POST /%TESTNUMBER HTTP/1.1
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Host: %HOSTIP:%HTTPPORT
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User-Agent: curl/%VERSION
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Accept: */*
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Content-Length: 74
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Content-Type: application/x-www-form-urlencoded
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--\u0001\u0002\u0003\u0000\u0004\u0005\u000622--again%01%02%03%00%04%05%06
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</protocol>
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</verify>
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</testcase>
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