WAP CGI Environment Variables

When a WAP application makes a request, it is translated into HTTP, which carries some extra WAP-related headers. These are translated into corresponding HTTP_* environment variables in the CGI request. I list some of the interesting ones.

HTTP_ACCEPT = application/vnd.wap.wmlc, application/vnd.wap.wbxml, application/vnd.wap.wmlscriptc, application/xhtml+xml, application/vnd.wap.xhtml+xml, application/vnd.wap.mms-message, text/css, */*, text/x-wap.wml,text/vnd.wap.wml,text/x-hdml,text/vnd.wap.wmlscript, */* (a handy little list of the mime types which a random mobile accepts)
HTTP_ACCEPT_APPLICATION = 1, 2 (no idea what this is)
HTTP_BEARER_INDICATION = 0 (no idea what this is)
HTTP_PROFILE = http://wap.sonyericsson.com/UAprof/T68R502.xml (a link to a fairly tedious profile of the client's hardware)
HTTP_USER_AGENT = SonyEricssonT68/R502 UP.Link/5.1.1.3 (no great surprise here; UP.Link is the Openwave Mobile Access Gateway)
HTTP_X_FORWARDED_FOR = 10.59.94.236 (RFC 1918 reserves the 10.* IP address space for private use, indicating that this network is running its GPRS service as a NATted network, which is moderately sensible)
HTTP_X_UP_* (these are headers specific to the Openwave Mobile Browser)
HTTP_X_UP_DEVCAP_MAX_PDU = 3000 (i would guess that this is the size of the largest protocol data unit that the browser will accept; in particular, i would guess that this relates to the WAP side of things, so if you wanted, you could be careful to only emit WML stacks whose compiled size was less than this)
HTTP_X_UP_SUBNO = MMNCHKPGPDMPMGIA_uplink.one2one.net (looks like a subscriber identifier to me; if that underscore were an at, it would even be in classic email-address format; this could be very handy for figuring out who's calling (eg for authentication); i don't know where the identifier comes from, but if it's base64 encoded, it means 30c3421ca3c63c330f306200 in hex, which is not very meaningful in ASCII)
HTTP_X_UP_WAPPUSH_SECURE = uplink.one2one.net:9003/pap (related to WAP's push message facility)
HTTP_X_UP_WAPPUSH_UNSECURE = uplink.one2one.net:9002/pap (related to WAP's push message facility)

Well, there isn't anything terribly exciting in there. It would be nice if there were some kind of portable subscriber-ID, but there's only UP.Browser's UP-Subno.

Here are some specimen requests.

The first is from Wapsilon:

DOCUMENT_ROOT = /srv/www/urchin.earth.li/html
GATEWAY_INTERFACE = CGI/1.1
HTTP_ACCEPT = text/vnd.wap.wml
HTTP_ACCEPT_LANGUAGE = en,fr;q=0.5
HTTP_CONNECTION = TE, close
HTTP_HOST = urchin.earth.li
HTTP_RANGE = bytes=0-102399
HTTP_REFERER = http://q=1&f=1&t=w&u=http%3A%2F%2Furchin.earth.li%2Fcgi-bin%2Ftwic%2Fwml%2Fdump.py
HTTP_TE = deflate,gzip;q=0.3
HTTP_USER_AGENT = Wapsilon/2.3 (www.wapsilon.com)
HTTP_X_FORWARDED_FOR = 81.134.173.95
PATH = /bin:/usr/bin:/sbin:/usr/sbin
QUERY_STRING = 
REMOTE_ADDR = 217.71.121.96
REMOTE_HOST = wapsilon.com
REMOTE_PORT = 53068
REQUEST_METHOD = GET
REQUEST_URI = /cgi-bin/twic/wml/dump.py
SCRIPT_FILENAME = /srv/www/urchin.earth.li/cgi-bin/twic/wml/dump.py
SCRIPT_NAME = /cgi-bin/twic/wml/dump.py
SERVER_ADDR = 193.201.200.73
SERVER_ADMIN = webmaster@urchin.earth.li
SERVER_NAME = urchin.earth.li
SERVER_PORT = 80
SERVER_PROTOCOL = HTTP/1.1
SERVER_SIGNATURE = <ADDRESS>Apache/1.3.26 Server at urchin.earth.li Port 80</ADDRESS>
SERVER_SOFTWARE = Apache/1.3.26 (Unix) Debian GNU/Linux PHP/4.1.2 mod_perl/1.26
UNIQUE_ID = P2Nc1sHJyEkAAC@FMXE

The other is from my from my phone, via the T-Mobile gateway:

DOCUMENT_ROOT = /srv/www/urchin.earth.li/html
GATEWAY_INTERFACE = CGI/1.1
HTTP_ACCEPT = application/vnd.wap.wmlc, application/vnd.wap.wbxml, application/vnd.wap.wmlscriptc, application/xhtml+xml, application/vnd.wap.xhtml+xml, application/vnd.wap.mms-message, text/css, */*, text/x-wap.wml,text/vnd.wap.wml,text/x-hdml,text/vnd.wap.wmlscript, */*
HTTP_ACCEPT_APPLICATION = 1, 2
HTTP_ACCEPT_CHARSET = us-ascii, iso-8859-1, utf-8, iso-10646-ucs-2, UTF-8, *
HTTP_ACCEPT_LANGUAGE = en
HTTP_BEARER_INDICATION = 0
HTTP_CACHE_CONTROL = No-Cache
HTTP_CONNECTION = close
HTTP_ENCODING_VERSION = 1.3
HTTP_HOST = urchin.earth.li:80
HTTP_PROFILE = http://wap.sonyericsson.com/UAprof/T68R502.xml
HTTP_USER_AGENT = SonyEricssonT68/R502 UP.Link/5.1.1.3
HTTP_X_FORWARDED_FOR = 10.59.94.236
HTTP_X_UP_DEVCAP_CHARSET = us-ascii, iso-8859-1, utf-8, iso-10646-ucs-2
HTTP_X_UP_DEVCAP_MAX_PDU = 3000
HTTP_X_UP_FAX_ACCEPTS = none
HTTP_X_UP_FAX_LIMIT = 0
HTTP_X_UP_SUBNO = MMNCHKPGPDMPMGIA_uplink.one2one.net
HTTP_X_UP_UPLINK = uplink.one2one.net
HTTP_X_UP_WAPPUSH_SECURE = uplink.one2one.net:9003/pap
HTTP_X_UP_WAPPUSH_UNSECURE = uplink.one2one.net:9002/pap
PATH = /bin:/usr/bin:/sbin:/usr/sbin
QUERY_STRING = 
REMOTE_ADDR = 149.254.1.21
REMOTE_HOST = radius.one2one.net
REMOTE_PORT = 52026
REQUEST_METHOD = GET
REQUEST_URI = /cgi-bin/twic/wml/dump.py
SCRIPT_FILENAME = /srv/www/urchin.earth.li/cgi-bin/twic/wml/dump.py
SCRIPT_NAME = /cgi-bin/twic/wml/dump.py
SERVER_ADDR = 193.201.200.73
SERVER_ADMIN = webmaster@urchin.earth.li
SERVER_NAME = urchin.earth.li
SERVER_PORT = 80
SERVER_PROTOCOL = HTTP/1.1
SERVER_SIGNATURE = <ADDRESS>Apache/1.3.26 Server at urchin.earth.li Port 80</ADDRESS>
SERVER_SOFTWARE = Apache/1.3.26 (Unix) Debian GNU/Linux PHP/4.1.2 mod_perl/1.26
UNIQUE_ID = P2Nc@sHJyEkAACtOPuM