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copied!<p>This is a question I have answered myself.</p> <p>Summary of process </p> <ul> <li>use a HTTP proxy sniffer to determine the format of the URL - see below</li> <li>using py-ntlm, connect to TFS server, using a known format of URL to get the "full" report page,</li> <li>parse the report page to get the image url, down load that again through py-ntlm, and store.</li> </ul> <p>There is no direct URL ie I cannot ask for reportserver/myteam/burndownchart/20110815 (nice and restful) but there is a param style request for the wrapper "report" to the image I want. Sadly there is no easy way to find it just browsing in VS2010 extension - I used Charles debugger proxy to see what VS2010 is sending.</p> <p>The url you will need to directly visit the report for your team is similar to <a href="http://tfs.example.com/reportserver?/TfsReports/ExampleCompany/ExampleProject/Sprint+Burndown+Chart&rc:toolbar=false&pReleaseWorkStreamPath=" rel="nofollow">http://tfs.example.com/reportserver?/TfsReports/ExampleCompany/ExampleProject/Sprint+Burndown+Chart&rc:toolbar=false&pReleaseWorkStreamPath=</a>\Release01\&pSprintTeam=\Release02\Sprint01\Team01</p> <p>There is some Session based obfuscation going on with the actual image URL, meaning I must call then parse the report page, to find the URL of the image, and then download it. On top of that I needed to get Python to work with Windows Authentication, and generally fiddled around a great deal</p> <p>The below <em>process</em> is sound but the code is brittle and I just recommend it as a starting point</p> <h2>Identify the URL of the report</h2> <p>Install py-ntlm (http://code.google.com/p/python-ntlm/)</p> <p>(a) You need to create a hash of user pass and requested url each time (this is invisible by browser usually) (b) THen pass that as a urllib2 handler to urllib2 (c) process the url as usual through urllib2</p> <pre><code>import urllib2 from ntlm import HTTPNtlmAuthHandler # passman = urllib2.HTTPPasswordMgrWithDefaultRealm() passman.add_password(None, url, user, password) ## (a) auth_NTLM = HTTPNtlmAuthHandler.HTTPNtlmAuthHandler(passman) #(b) opener = urllib2.build_opener(auth_NTLM) urllib2.install_opener(opener) # (c) response = urllib2.urlopen(url_moi) html = response.read() </code></pre> <p>SO that gets me the standard report web page, with image in it. I now need to extract that image url, for which I used a regex to get all IMG tags and took the second one in the list. Professional and not at all brittle :-)</p> <p>We then rebuild the nltm hash (I have downloaded the HTML report page, now I want the JPG image in it), call the URL above and write the output to local disk.</p> <p>I hope that helps. </p> <p>YMMV</p>

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