prompt user for http authentication info

in interactive mode, mercurial now asks the user for the username and
password when the server requires it. the previous behavior was to fail
with an http 401.

based on patch from eric jaffe <[e-mail]>.

mercurial/httprepo.py

@@ -11,6 +11,25 b' from i18n import gettext as _'
 from demandload import *
 demandload(globals(), "hg os urllib urllib2 urlparse zlib util httplib")
 
+class passwordmgr(urllib2.HTTPPasswordMgr):
+    def __init__(self, ui):
+        urllib2.HTTPPasswordMgr.__init__(self)
+        self.ui = ui
+
+    def find_user_password(self, realm, authuri):
+        authinfo = urllib2.HTTPPasswordMgr.find_user_password(
+            self, realm, authuri)
+        if authinfo != (None, None):
+            return authinfo
+
+        self.ui.write(_("http authorization required\n"))
+        self.ui.status(_("realm: %s\n") % realm)
+        user = self.ui.prompt(_("user:"), default=None)
+        passwd = self.ui.getpass()
+
+        self.add_password(realm, authuri, user, passwd)
+        return (user, passwd)
+
 class httprepository(remoterepository):
     def __init__(self, ui, path):
         # fix missing / after hostname
@@ -53,13 +72,21 b' class httprepository(remoterepository):'
         if host and not no_proxy:
             proxy_handler = urllib2.ProxyHandler({"http" : "http://" + host})
 
-        authinfo = None
+        proxyauthinfo = None
         if user and passwd:
             passmgr = urllib2.HTTPPasswordMgrWithDefaultRealm()
             passmgr.add_password(None, host, user, passwd)
-            authinfo = urllib2.ProxyBasicAuthHandler(passmgr)
+            proxyauthinfo = urllib2.ProxyBasicAuthHandler(passmgr)
 
-        opener = urllib2.build_opener(proxy_handler, authinfo)
+        if ui.interactive:
+            passmgr = passwordmgr(ui)
+            opener = urllib2.build_opener(
+                proxy_handler, proxyauthinfo,
+                urllib2.HTTPBasicAuthHandler(passmgr),
+                urllib2.HTTPDigestAuthHandler(passmgr))
+        else:
+            opener = urllib2.build_opener(proxy_handler, proxyauthinfo)
+
         # 1.0 here is the _protocol_ version
         opener.addheaders = [('User-agent', 'mercurial/proto-1.0')]
         urllib2.install_opener(opener)

mercurial/ui.py

@@ -8,7 +8,7 b''
 import ConfigParser
 from i18n import gettext as _
 from demandload import *
-demandload(globals(), "errno os re smtplib socket sys tempfile util")
+demandload(globals(), "errno getpass os re smtplib socket sys tempfile util")
 
 class ui(object):
     def __init__(self, verbose=False, debug=False, quiet=False,
@@ -224,15 +224,18 b' class ui(object):'
 
     def readline(self):
         return sys.stdin.readline()[:-1]
-    def prompt(self, msg, pat, default="y"):
+    def prompt(self, msg, pat=None, default="y"):
         if not self.interactive: return default
         while 1:
             self.write(msg, " ")
             r = self.readline()
-            if re.match(pat, r):
+            if not pat or re.match(pat, r):
                 return r
             else:
                 self.write(_("unrecognized response\n"))
+    def getpass(self, prompt=None, default=None):
+        if not self.interactive: return default
+        return getpass.getpass(prompt or _('password: '))
     def status(self, *msg):
         if not self.quiet: self.write(*msg)
     def warn(self, *msg):