Language Tracking with Server-Side Google Analytics - google-app-engine

Question

I've ported the google analytics server side code over into my Python GAE application. Everything is working great, except for language tracking. I'm wondering if anyone here who has used google analytics on the server side has had success tracking languages.
The relevant bit of code is:
utm_url = utm_gif_location + "?" + \
"utmwv=" + GA_VERSION + \
"&utmn=" + str(randint(0, 0x7fffffff)) + \
"&utmhn=" + urllib.quote(domain) + \
"&utmsr=" + '-' + \
"&utme=" + '-' + \
"&utmr=" + urllib.quote(document_referer) + \
"&utmp=" + path + \
"&utmac=" + GA_ACCOUNT + \
"&utmcc=__utma%3D999.999.999.999.999.1%3B" + \
"&utmvid=" + visitor_id + \
"&utmip=" + ip
headers = {
'User-Agent': req.get('ua'),
'Accept-Language': req.get('lang')
}
httpresp = urlfetch.fetch(
url = utm_url,
method = urlfetch.GET,
headers = headers
)
if httpresp.status_code == 200:
logging.info("GA success: %s(%s)\n%s" % (utm_url, headers, httpresp.headers) )
else:
logging.warning("GA fail: %s %d" % (utm_url, httpresp.status_code) )
And here is a little debugging output which shows that I'm sending the Accept-Language header:
GA success: http://www.google-analytics.com/__utm.gif?utmwv=4.4sh&utmn=1306014991&utmhn=XXXXXXXXXXXXX.com&utmsr=-&utme=-&utmr=-&utmp=XXXXXXXXXXXXXXXXXXXXXXXXXX&utmac=MO-XXXXX-XX&utmcc=__utma%3D999.999.999.999.999.1%3B&utmvid=XXXXXXXXXXXXXXXXXX&utmip=XXX.XXX.XX.XX({'Accept-Language': u'en-us', 'User-Agent': u'Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Mobile/9A405'})
{'content-length': '35', 'x-google-cache-control': 'remote-fetch', 'x-content-type-options': 'nosniff', 'age': '93451', 'expires': 'Wed, 19 Apr 2000 11:43:00 GMT', 'server': 'GFE/2.0', 'last-modified': 'Wed, 21 Jan 2004 19:51:30 GMT', 'via': 'HTTP/1.1 GWA', 'pragma': 'no-cache', 'cache-control': 'private, no-cache, no-cache=Set-Cookie, proxy-revalidate', 'date': 'Wed, 22 Feb 2012 16:25:04 GMT', 'content-type': 'image/gif'}
(I've XXXX'd stuff to protect the innocent).
As I said, everything is working great (locations, hit count, user agent), except languages. They are all being counted as "not set".
Any ideas?

Answer 1

The language attribute that Google Analytics tracks isn't from headers.
Rather, it's passed directly in the URL request to __utm.gif as the utmul attribute.
So, my computer sets utmul=en-us, using the navigator.language or navigator.browserLanguage attributes (which it seems like it makes lower case.)
In your case, that means you just need to add this line to your __utm.gif constructions:
"&utmul=" + req.get('lang')