Where in their docs do you see to use the /1/token/approve endpoint? I didn't see it in this list: https://trello.com/docs/api/index.html or in the discussion about user tokens also - when you get this working you'll post a MIT licensed version for everyone to use right? ;) Tim Mackinnon wrote
Hi Paul - yes that ZnEasy call works fine - in my case I am trying to read some data from Trello.com and so you do an initial request with an application key and then you authorise an operation with some parameters to get back a token to use for private requests.
The sequence I am using is this:
| znc resp soup key sig |
(znc := ZnClient new) logToTranscript.
resp := znc url: 'https://trello.com/1/authorize'; queryAt: 'scope' put: 'read'; queryAt: 'expiration' put: '1day'; queryAt: 'name' put: 'Pharo App'; queryAt: 'response_type' put: 'token'; queryAt: âkey' put: 'xxxxxxx1d588819825d57da6dad4dd'; get; response.
soup := (Soup fromString: resp entity). key := soup findTag: [ :e | (e name = 'input') and: [ (e attributeAt: 'name' ifAbsent: ['']) = 'requestKey' ]]. sig := soup findTag: [ :e | (e name = 'input') and: [ (e attributeAt: 'name' ifAbsent: ['']) = 'signature' ]].
Transcript cr; cr; show: (key attributeAt: 'value'); cr; show: (sig attributeAt: 'value'); cr; cr.
resp := znc resetEntity; url: '/1/token/approve'; formAt: 'approve' put: 'Allow'; formAt: 'requestKey' put: (key attributeAt: 'value'); formAt: 'signature' put: (sig attributeAt: 'value'); post; response.
If I look at the logging in the transcript - the first part works fine:
2014-06-25 14:50:37 042813 I Wrote a ZnRequest(GET /1/authorize?response_type=token&key=xxxxxxxxxx1d588819825d57da6dad4dd&scope=read&name=Pharo%20App&expiration=1day) 2014-06-25 14:50:37 042813 D Sent headers Accept: */* User-Agent: Zinc HTTP Components 1.0 Host: trello.com
2014-06-25 14:50:37 042813 I Read a ZnResponse(200 OK text/html;charset=utf-8 2199B) â¦..
Its the next bit of the log which is doing something weird - and showing a resource moved - so I wonder if the server is expecting something extra? The transcript is showing I have extracted my key and signature to populate my form and then I see the 302 status code?
xxxxxx1bf70c02d829c9541f0c3c xxxxxx5437639/0f28401bf858e7f623c971a45b77291dc113988782
2014-06-25 14:50:37 042813 I Wrote a ZnRequest(POST /1/token/approve) 2014-06-25 14:50:37 042813 D Sent headers User-Agent: Zinc HTTP Components 1.0 Content-Length: 146 Host: trello.com Content-Type: application/x-www-form-urlencoded Accept: */*
2014-06-25 14:50:37 042813 I Read a ZnResponse(302 Moved Temporarily text/plain;charset=UTF-8 35B) 2014-06-25 14:50:37 042813 D Received headers X-Frame-Options: DENY Content-Length: 35 Content-Type: text/plain; charset=UTF-8 X-Powered-By: Express X-Content-Type-Options: nosniff Location: / Cache-Control: no-store, no-cache Strict-Transport-Security: max-age=15768000 Date: Wed, 25 Jun 2014 13:50:37 GMT X-Xss-Protection: 1; mode=block Vary: Accept, Accept-Encoding
2014-06-25 14:50:37 042813 D Redirecting to https://trello.com:443/ 2014-06-25 14:50:37 042813 I Wrote a ZnRequest(GET /) 2014-06-25 14:50:37 042813 D Sent headers User-Agent: Zinc HTTP Components 1.0 Host: trello.com Accept: */*
2014-06-25 14:50:38 042813 I Read a ZnResponse(200 OK text/html;charset=utf-8 147886B) 2014-06-25 14:50:38 042813 D Received headers X-Frame-Options: DENY Content-Length: 147886 Set-Cookie: sup=1; Path=/; Expires=Thu, 25 Jun 2015 13:50:37 GMT Content-Type: text/html; charset=utf-8 X-Powered-By: Express Etag: "579547792" X-Content-Type-Options: nosniff Date: Wed, 25 Jun 2014 13:50:37 GMT Cache-Control: no-store, no-cache Strict-Transport-Security: max-age=15768000 X-Xss-Protection: 1; mode=block Vary: Accept-Encoding
2014-06-25 14:50:38 042813 D Received cookie: sup=1; path=/; domain=trello.com; expires=Thu, 25 Jun 2015 13:50:37 GMT 2014-06-25 14:50:38 042813 D Received cookie: sup=1; path=/; domain=trello.com; expires=Thu, 25 Jun 2015 13:50:37 GMT 2014-06-25 14:50:38 042813 T GET / 200 147886B 1136ms
I think Iâm a bit out of my depth on this, so maybe I might have to find a different way of doing things.
I appreciate the help.
Tim
On 25 Jun 2014, at 14:41, Paul DeBruicker [via Smalltalk] <
ml-node+s1294792n4764717h7@.nabble
> wrote:
Are you able to get the contents of
ZnEasy get: 'https://www.google.com'
?
If so then is not an SSL issue. If not you'll need to use charles proxy (http://www.charlesproxy.com/) or an equivalent to see the decoded https requests. Wireshark only has encrypted packets.
Are you doing the #resetEntity prior to setting the url or other parameters when doing your POST?
Tim Mackinnon wrote Actually looking at this a bit more - #resetEntity does do what you suggest (my mistake) - but I still have some problem, possibly related to https? Not sure whats going on as it looks like the post call is sending out what I think it should - but somehow the receiving server is not happy and is redirecting to â/â?
Not really sure how to debug that - guess I might have to learn how to use wireshark.
Tim
On 25 Jun 2014, at 08:55, Tim Mackinnon <[hidden email]> wrote:
Hi Paul - thanks for your suggestions, #resetEntity doesn't seem to clear the parameters or have any effect (which I think makes sense given the name?).
The get portion and decoding parameters is all working perfectly, it's the post that has me confused.
If I inspect the request - it seems to be issuing to "/" - so it's like the URL: is not being honoured (and the response I get back is the contents of the / webpage).
I think I'm confused about the interaction of URL:, and setting request and form params. From the docs, it wasn't obvious to me that ordering is important - but it seems that it is (I was expecting #post or #get to assemble everything when invoked - but I'm not sure it works like that).
I guess I will have to debug through the code.
Tim
Sent from my iPhone
On 25 Jun 2014, at 05:12, "Paul DeBruicker [via Smalltalk]" <[hidden email]> wrote:
Do your query parameters from the initial GET get cleared from the request before the POST? If you're not sure send the client #resetEntity.
Is the response of the GET correct & are the keys decoded properly? if not can you get a valid signature and request key from somewhere else (e.g. web ui, or ....) to test the POST?
Is it important to reuse the connection? IF not add the #beOneShot method to both and see if that helps as it does some resetting.
The #post method is a convenience method that conjoins a send to #method: and #execute. You could separate them and use #method: at the top and #execute; before the #request line but I'd be surprised to learn that fixed things.
Good luck
Paul
Tim Mackinnon wrote Hi I'm a bit confused about how to send a get request to a resource and then post a response to it? I seem to fail on the post part, as it seems that my query is not being well formeed - or something is not being cleared when I reuse the connection I used in the get. My code looks as follows (and I'm sure there is a simple mistake).
It seems that in my post request, it doesn't formulate the post I expect - it shows a GET / msg, and as such my response doesn't give me the token I expect. If I move the "post" line up to the start, I seem to get a request header I expect, but still not the the result I expect. Can anyone offer any tips? Do I need to clear my Client in some way before the second post operation?
Tim
| znc resp |
(znc := ZnClient new) logToTranscript.
resp := znc url: 'https://trello.com/1/authorize'; queryAt: 'scope' put: 'read'; queryAt: 'expiration' put: '1day'; queryAt: 'name' put: 'Pharo App'; "queryAt: 'response_type' put: 'token';" queryAt: 'key' put: 'xxxxxx1d588819825d57da6dad4dd'; get; request; response.
soup := (Soup fromString: resp entity). sig := soup findTag: [ :e | (e name = 'input') and: [ (e attributeAt: 'name' ifAbsent: ['']) = 'signature' ]]. key := soup findTag: [ :e | (e name = 'input') and: [ (e attributeAt: 'name' ifAbsent: ['']) = 'requestKey' ]].
resp := znc url: 'https://trello.com/1/token/approve'; formAt: 'approve' put: 'Allow'; formAt: 'requestKey' put: (key attributeAt: 'value'); formAt: 'signature' put: (sig attributeAt: 'value'); post; request; response.
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