chpwd: Set default config file from environment variable `CHPWD_CONFIG'.

[chopwood] / chpwd

diff --git a/chpwd b/chpwd
index 1e4248b7f075be7cd295f209cdc583ad18527458..4d70fa8c28b27951269d396ed98dbd30cb7135db 100755 (executable)
--- a/chpwd
+++ b/chpwd
@@ -71,7 +71,8 @@ for short, long, props in [
     'help': 'run commands with the given CONTEXT' }),
   ('-f', '--config-file', {
     'metavar': 'FILE', 'dest': 'config',
-    'default': OS.path.join(HOME, 'chpwd.conf'),
+    'default': ENV.get('CHPWD_CONFIG',
+                       OS.path.join(HOME, 'chpwd.conf')),
     'help': 'read configuration from FILE.' }),
   ('-s', '--ssl', {
     'dest': 'sslp', 'action': 'store_true',
@@ -87,6 +88,7 @@ for short, long, props in [
 ## The special variables, to be picked out by `cgiparse'.
 CGI.SPECIAL['%act'] = None
 CGI.SPECIAL['%nonce'] = None
+CGI.SPECIAL['%user'] = None
 
 ## We don't want to parse arguments until we've settled on a context; but
 ## issuing redirects in the early setup phase fails because we don't know
@@ -143,6 +145,14 @@ def dispatch_cgi():
   ## `cgi-noauth'.
   if ctx != 'cgi-noauth':
 
+    ## The next part of the URL should be the user name, so that caches don't
+    ## cross things over.
+    expuser = CGI.SPECIAL['%user']
+    if expuser is None:
+      if i >= np: raise U.ExpectedError, (404, 'Missing user name')
+      expuser = CGI.PATH[i]
+      i += 1
+
     ## If there's no token cookie, then we have to bail.
     try: token = CGI.COOKIE['chpwd-token']
     except KeyError:
@@ -166,6 +176,8 @@ def dispatch_cgi():
     except HA.AuthenticationFailed, e:
       CGI.redirect(CGI.action('login', why = e.why))
       return
+    if CU.USER != expuser: raise U.ExpectedError, (401, 'User mismatch')
+    CGI.STATE.kw['user'] = CU.USER
 
   ## Invoke the subcommand handler.
   c.cgi(CGI.PARAM, CGI.PATH[i:])