From: Daniel Lenski <dlenski@gmail.com>
Date: Mon, 23 Mar 2020 06:19:21 +0000 (-0700)
Subject: include clientos in output command-lines and environment variables
X-Git-Url: https://code.communitydata.science/nu-vpn-proxy.git/commitdiff_plain/66438abc7cf5d17c1093610266fcc9b8319cd9d6?ds=inline;hp=6bbbe479043b1a5d5f75a7c6bbc88eada5ccd126

include clientos in output command-lines and environment variables
---

diff --git a/README.md b/README.md
index aa94778..03d7d66 100644
--- a/README.md
+++ b/README.md
@@ -32,16 +32,19 @@ $ pip install requests
 How to use
 ==========
 
-Specify the GlobalProtect server URL (portal or gateway) and optional arguments.
+Specify the GlobalProtect server URL (portal or gateway) and optional
+arguments, such as `--clientos=Windows` (because many GlobalProtect
+servers don't require SAML login, but apparently omit it in their configuration
+for OSes other than Windows).
 
 This script will pop up a [GTK WebKit2 WebView](https://webkitgtk.org/) window.
 After you succesfully complete the SAML login via web forms, the script will output
-`HOST`, `USER`, and `COOKIE` variables in a form that can be used by
+`HOST`, `USER`, `COOKIE`, and `OS` variables in a form that can be used by
 [OpenConnect](http://www.infradead.org/openconnect/juniper.html)
 (similar to the output of `openconnect --authenticate`):
 
 ```sh
-$ eval $( gp-saml-gui.py -v vpn.company.com )
+$ eval $( gp-saml-gui.py --clientos=Windows vpn.company.com )
 Got SAML POST content, opening browser...
 Finished loading about:blank...
 Finished loading https://company.okta.com/app/panw_globalprotect/deadbeefFOOBARba1234/sso/saml...
@@ -52,14 +55,15 @@ Got SAML relevant headers, done: {'prelogin-cookie': 'blahblahblah', 'saml-usern
 SAML response converted to OpenConnect command line invocation:
 
     echo 'blahblahblah' |
-        openconnect --protocol=gp --user='foo12345@corp.company.com' --usergroup=prelogin-cookie:gateway --passwd-on-stdin vpn.company.com
+        openconnect --protocol=gp --user='foo12345@corp.company.com' --os=win --usergroup=prelogin-cookie:gateway --passwd-on-stdin vpn.company.com
 
-$ echo $HOST; echo $USER; echo $COOKIE
+$ echo $HOST; echo $USER; echo $COOKIE; echo $OS
 https://vpn.company.com/gateway:prelogin-cookie
 foo12345@corp.company.com
-blahblahblah'
+blahblahblah
+win
 
-$ echo "$COOKIE" | openconnect --protocol=gp -u "$USER" --passwd-on-stdin "$HOST"
+$ echo "$COOKIE" | openconnect --protocol=gp -u "$USER" --os="$OS" --passwd-on-stdin "$HOST"
 ```
 
 TODO
diff --git a/gp-saml-gui.py b/gp-saml-gui.py
index 4029a09..09f0faa 100755
--- a/gp-saml-gui.py
+++ b/gp-saml-gui.py
@@ -122,8 +122,9 @@ class SAMLLoginView:
             Gtk.main_quit()
 
 def parse_args(args = None):
-    clientos_map = dict(linux='Linux', darwin='Mac', win32='Windows', cygwin='Windows')
-    default_clientos = clientos_map.get(platform, 'Windows')
+    pf2clientos = dict(linux='Linux', darwin='Mac', win32='Windows', cygwin='Windows')
+    clientos2ocos = dict(Linux='linux-64', Mac='mac-intel', Windows='win')
+    default_clientos = pf2clientos.get(platform, 'Windows')
 
     p = argparse.ArgumentParser()
     p.add_argument('server', help='GlobalProtect server (portal or gateway)')
@@ -145,10 +146,11 @@ def parse_args(args = None):
     g.add_argument('-v','--verbose', default=0, action='count')
     g.add_argument('-x','--external', action='store_true', help='Launch external browser (for debugging)')
     g.add_argument('-u','--uri', action='store_true', help='Treat server as the complete URI of the SAML entry point, rather than GlobalProtect server')
-    g.add_argument('--clientos', choices=set(clientos_map.values()), default=default_clientos, help="clientos value to send (default is %(default)s)")
+    g.add_argument('--clientos', choices=set(pf2clientos.values()), default=default_clientos, help="clientos value to send (default is %(default)s)")
     p.add_argument('extra', nargs='*', help='Extra form field(s) to pass to include in the login query string (e.g. "magic-cookie-value=deadbeef01234567")')
     args = p.parse_args(args = None)
 
+    args.ocos = clientos2ocos[args.clientos]
     args.extra = dict(x.split('=', 1) for x in args.extra)
 
     if args.cookies:
@@ -261,14 +263,14 @@ if __name__ == "__main__":
                   '''that's associated with the {} interface. You should probably try both.\n'''.format(args.interface, ifh),
                   file=stderr)
         print('''\nSAML response converted to OpenConnect command line invocation:\n''', file=stderr)
-        print('''    echo {} |\n        openconnect --protocol=gp --user={} --usergroup={}:{} --passwd-on-stdin {}'''.format(
-            quote(cv), quote(un), quote(ifh), quote(cn), quote(server)), file=stderr)
+        print('''    echo {} |\n        openconnect --protocol=gp --user={} --os={} --usergroup={}:{} --passwd-on-stdin {}'''.format(
+            quote(cv), quote(un), quote(args.ocos), quote(ifh), quote(cn), quote(server)), file=stderr)
 
         print('''\nSAML response converted to test-globalprotect-login.py invocation:\n''', file=stderr)
-        print('''    test-globalprotect-login.py --user={} -p '' \\\n         https://{}/{} {}={}\n'''.format(
-            quote(un), quote(server), quote(if2auth[ifh]), quote(cn), quote(cv)), file=stderr)
+        print('''    test-globalprotect-login.py --user={} --clientos={} -p '' \\\n         https://{}/{} {}={}\n'''.format(
+            quote(un), quote(args.clientos), quote(server), quote(if2auth[ifh]), quote(cn), quote(cv)), file=stderr)
     varvals = {
-        'HOST': quote('https://%s/%s:%s' % (server, if2auth[ifh], cn)),
-        'USER': quote(un), 'COOKIE': quote(cv),
+        'HOST': quote('https://%s/%s:%s' % (server, if2auth[args.interface], cn)),
+        'USER': quote(un), 'COOKIE': quote(cv), 'OS': quote(args.ocos),
     }
     print('\n'.join('%s=%s' % pair for pair in varvals.items()))