I want to do something like this
<arc:set attr="scope">[encodedurl]\n[expiry]</arc:set>
I have tried using a multiline arc:set but without any luck
<arc:set attr="scope">
[encodedurl]
[expiry]
</arc:set>
Any ideas?
Solved
Arcscript: How do I put a linefeed in an attribute?
Best answer by James B
What context are you using the new scope attr in? Both of those statements will use a new line in the resulting value, which you can see if you test it in a Script connector for example:
<arc:set attr="encodedurl" value="http://someurl/" />
<arc:set attr="expiry" value="2020-01-01" />
<arc:set attr="scope">[encodedurl]\n[expiry]</arc:set>
<arc:throw code="x" desc="[scope]" />You can see the line break in the thrown exception:
And in the second case, you get the preceding and following line breaks:
<arc:set attr="encodedurl" value="http://someurl/" />
<arc:set attr="expiry" value="2020-01-01" />
<arc:set attr="scope">
[encodedurl]
[expiry]
</arc:set>
<arc:throw code="x" desc="[scope]" />
Of course, the context from which scope is evaluated is important here, because the exception here supports multiline data.
This topic has been closed for replies.
What context are you using the new scope attr in? Both of those statements will use a new line in the resulting value, which you can see if you test it in a Script connector for example:
<arc:set attr="encodedurl" value="http://someurl/" />
<arc:set attr="expiry" value="2020-01-01" />
<arc:set attr="scope">[encodedurl]\n[expiry]</arc:set>
<arc:throw code="x" desc="[scope]" />You can see the line break in the thrown exception:
And in the second case, you get the preceding and following line breaks:
<arc:set attr="encodedurl" value="http://someurl/" />
<arc:set attr="expiry" value="2020-01-01" />
<arc:set attr="scope">
[encodedurl]
[expiry]
</arc:set>
<arc:throw code="x" desc="[scope]" />
Of course, the context from which scope is evaluated is important here, because the exception here supports multiline data.
I’m using the scope and encoding it using HMACs.
I then pass it in the message header to a REST connector and use it in a HTTP Header
The REST Connector log shows these two headers being evaluated correctly.
Very similar to https://arc.cdata.com/kb/articles/arc-http-signature-auth.rst
Here’s my script
<arc:set attr="encIn0.data" value="[url]" />
<arc:set attr="encIn0.format" value="URL" />
<arc:call op="encEncode" in="encIn2" out="result0">
<!-- setting the output file data to be the encoded data returned from the operation -->
<arc:set attr="output.encodedurl">[result0.encodeddata]</arc:set>
</arc:call>
<arc:set attr="fixedtimestamp" value="03-02-2024"/>
<arc:set attr="expiry">[fixedtimestamp| todate('dd-MM-yyyy','U') |dateadd('day', 7)|datediff('second', '1970-01-01 00:00:00Z')]</arc:set>
<arc:set attr="scope">[output.encodedurl]\n[expiry]</arc:set>
<arc:set attr="encIn.data" value="[scope]" />
<arc:set attr="encIn.format" value="HMAC" />
<arc:set attr="encIn.hmackey" value="[azureprimary.key]" />
<arc:set attr="encIn.hmacalgorithm" value="SHA" />
<arc:set attr="encIn.hmacbits" value="256" />
<arc:set attr="encIn.outformat" value="BASE64" />
<arc:call op="encEncode" in="encIn" out="result">
<!-- setting the output file data to be the encoded data returned from the operation -->
<arc:set attr="output.hashb64">[result.encodeddata]</arc:set>
</arc:call>
<arc:set attr="encIn2.data" value="[output.hashb64]" />
<arc:set attr="encIn2.format" value="URL" />
<arc:call op="encEncode" in="encIn2" out="result2">
<!-- setting the output file data to be the encoded data returned from the operation -->
<arc:set attr="output.signatureUrlEncoded">[result2.encodeddata]</arc:set>
</arc:call>
<arc:set attr="sigheader">SharedAccessSignature sig=[output.signatureUrlEncoded]&se=[expiry]&skn=sas-tracking-events-topic&sr=[output.encodedurl]</arc:set>
<arc:set attr="outfile.FilePath" value="[FilePath]" />
<!-- debug -->
<arc:set attr="outfile.Header:expiry">[expiry]</arc:set>
<arc:set attr="outfile.Header:scope">[scope]</arc:set>
<arc:set attr="outfile.Header:signature">[output.hashb64]</arc:set>
<!-- debug end-->
<arc:set attr="outfile.Header:sigheader" value="[sigheader]" />
<arc:set attr="outfile.Header:brokerProperties">{"SessionId":"[guid()]"}</arc:set>
<arc:push item="outfile" />
The issues is with
<arc:set attr="encIn0.data" value="[url]" />
<arc:set attr="encIn0.format" value="URL" />
<arc:call op="encEncode" in="encIn0" out="result0">
<!-- setting the output file data to be the encoded data returned from the operation -->
<arc:set attr="output.encodedurl">[result0.encodeddata]</arc:set>
</arc:call>It’s encode //:, = etc to lowercase (%2f, %3d etc). I’m comparing this with Postman and Crypto JS which encodes to uppercase (and works)
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