jenkins - Trigger parameterized build with curl and crumb

Question

I've seen similar posts to this on SO, but not quite exactly what I am trying to do (or at least no full examples of a command to run).

I am trying to remotely trigger a parameterized build on Jenkins using curl. I have 'Prevent Cross Site Request Forgery' enabled so I also need to pass a valid crumb.

The script I have is below:

#!/bin/bash

json="{"parameter": [{ "P1": "param1", "P2": "param2", "P3": "param3" }]}"
crumb=`curl "http://SERVER/crumbIssuer/api/xml?xpath=concat(//crumbRequestField,%22:%22,//crumb)"`

curl -v -H $crumb -X POST http://SERVER/job/JOB_NAME/buildWithParameters -d token=runme --data-urlencode json="$json"

I've also tried modifying the URL I'm passing to curl to either:

USERNAME:APITOKEN@SERVER

and

USERNAME:PASSWORD@SERVER

Output from curl is:

* About to connect() to SERVER port 8080 (#0)
*   Trying SERVER... connected
* Connected to SERVER (SERVER) port 8080 (#0)
* Server auth using Basic with user 'USERNAME'
> POST /job/JOB_NAME/buildWithParameters HTTP/1.1
> Authorization: Basic bjAwNjY5MjI6YWxLaW5kaTg=
> User-Agent: curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.13.1.0 zlib/1.2.3 libidn/1.18 libssh2/1.2.2
> Host: SERVER:8080
> Accept: */*
> .crumb:776eb589e8b930d9f06cfc2df885314c
> Content-Length: 168
> Content-Type: application/x-www-form-urlencoded
>
< HTTP/1.1 403 No valid crumb was included in the request
< Content-Type: text/html;charset=ISO-8859-1
< Cache-Control: must-revalidate,no-cache,no-store
< Content-Length: 1469
< Server: Jetty(8.y.z-SNAPSHOT)
<

So it looks like I'm not passing the crumb properly, but I'm not sure what the correct format of the command should be.

Answer 1

What worked for me:

SERVER=http://localhost:8080
CRUMB=$(curl --user $USER:$APITOKEN 
    $SERVER/crumbIssuer/api/xml?xpath=concat(//crumbRequestField,%22:%22,//crumb))

curl --user $USER:$APITOKEN -H "$CRUMB" -d "script=$GROOVYSCRIPT" $SERVER/script