Allow stdin data with password prompt; added tests

Closes #70

README.rst

@@ -118,6 +118,7 @@ Flags
 ^^^^^
 Most of the flags mirror the arguments understood by ``requests.request``. See ``http -h`` for more details::
 
+    $ http --help
     usage: http [-h] [--version] [--json | --form] [--traceback]
                 [--pretty | --ugly]
                 [--print OUTPUT_OPTIONS | --verbose | --headers | --body]
@@ -147,13 +148,15 @@ Most of the flags mirror the arguments understood by ``requests.request``. See `
     optional arguments:
       -h, --help            show this help message and exit
       --version             show program's version number and exit
-      --json, -j            (default) Data items are serialized as a JSON object.
-                            The Content-Type and Accept headers are set to
-                            application/json (if not set via the command line).
-      --form, -f            Data items are serialized as form fields. The Content-
-                            Type is set to application/x-www-form-urlencoded (if
-                            not specifid). The presence of any file fields results
-                            into a multipart/form-data request.
+      --json, -j            (default) Data items from the command line are
+                            serialized as a JSON object. The Content-Type and
+                            Accept headers are set to application/json (if not
+                            specified).
+      --form, -f            Data items from the command line are serialized as
+                            form fields. The Content-Type is set to application/x
+                            -www-form-urlencoded (if not specified). The presence
+                            of any file fields results into a multipart/form-data
+                            request.
       --traceback           Print exception traceback should one occur.
       --pretty              If stdout is a terminal, the response is prettified by
                             default (colorized and indented if it is JSON). This
@@ -180,8 +183,8 @@ Most of the flags mirror the arguments understood by ``requests.request``. See `
                             make sure that the $TERM environment variable is set
                             to "xterm-256color" or similar (e.g., via `export TERM
                             =xterm-256color' in your ~/.bashrc).
-      --auth AUTH, -a AUTH  username:password. If the password is omitted, HTTPie
-                            will prompt for it.
+      --auth AUTH, -a AUTH  username:password. If the password is omitted (-a
+                            username), HTTPie will prompt for it.
       --auth-type {basic,digest}
                             The authentication mechanism to be used. Defaults to
                             "basic".
@@ -223,7 +226,10 @@ Changelog
 ---------
 
 * `0.2.3dev <https://github.com/jkbr/httpie/compare/0.2.2...master>`_
+    * --auth now prompts for a password if none is provided.
     * Added support for request payloads from a file path with automatic ``Content-Type`` (``http URL @/path``).
+    * Fixed missing query string when displaing the request headers via ``--verbose``.
+    * Fixed Content-Type for requests with no data.
 * `0.2.2 <https://github.com/jkbr/httpie/compare/0.2.1...0.2.2>`_ (2012-06-24)
     * The ``METHOD`` positional argument can now be omitted (defaults to ``GET``, or to ``POST`` with data).
     * Fixed --verbose --form.

httpie/cli.py

@@ -123,10 +123,10 @@ parser.add_argument(
 
 # ``requests.request`` keyword arguments.
 parser.add_argument(
-    '--auth', '-a', type=cliparse.AuthCredentials(cliparse.SEP_COMMON),
+    '--auth', '-a', type=cliparse.AuthCredentialsType(cliparse.SEP_COMMON),
     help=_('''
         username:password.
-        If the password is omitted, HTTPie will prompt for it.
+        If the password is omitted (-a username), HTTPie will prompt for it.
     '''),
 )
 

httpie/cliparse.py

@@ -8,9 +8,7 @@ import re
 import json
 import argparse
 import mimetypes
-
-from collections import namedtuple
-from getpass import getpass
+import getpass
 
 try:
     from collections import OrderedDict
@@ -54,13 +52,22 @@ class Parser(argparse.ArgumentParser):
     def parse_args(self, args=None, namespace=None,
                    stdin=sys.stdin,
                    stdin_isatty=sys.stdin.isatty()):
+
         args = super(Parser, self).parse_args(args, namespace)
+
         self._validate_output_options(args)
         self._validate_auth_options(args)
         self._guess_method(args, stdin_isatty)
         self._parse_items(args)
+
         if not stdin_isatty:
             self._body_from_file(args, stdin)
+
+        if args.auth and not args.auth.has_password():
+            # stdin has already been read (if not a tty) so
+            # it's save to prompt now.
+            args.auth.prompt_password()
+
         return args
 
     def _body_from_file(self, args, f):
@@ -161,12 +168,24 @@ class ParseError(Exception):
     pass
 
 
-KeyValue = namedtuple('KeyValue', ['key', 'value', 'sep', 'orig'])
+class KeyValue(object):
+    """Base key-value pair parsed from CLI."""
+
+    def __init__(self, key, value, sep, orig):
+        self.key = key
+        self.value = value
+        self.sep = sep
+        self.orig = orig
+
+    def __eq__(self, other):
+        return self.__dict__ == other.__dict__
 
 
 class KeyValueType(object):
     """A type used with `argparse`."""
 
+    key_value_class = KeyValue
+
     def __init__(self, *separators):
         self.separators = separators
         self.escapes = ['\\\\' + sep for sep in separators]
@@ -202,21 +221,43 @@ class KeyValueType(object):
         for sepstr in self.separators:
             key = key.replace('\\' + sepstr, sepstr)
             value = value.replace('\\' + sepstr, sepstr)
-        return KeyValue(key=key, value=value, sep=sep, orig=string)
+        return self.key_value_class(key=key, value=value, sep=sep, orig=string)
 
 
-class AuthCredentials(KeyValueType):
+class AuthCredentials(KeyValue):
+    """
+    Represents parsed credentials.
+
+    """
+    def _getpass(self, prompt):
+        return getpass.getpass(prompt)
+
+    def has_password(self):
+        return self.value is not None
+
+    def prompt_password(self):
+        try:
+            self.value = self._getpass("Password for user '%s': " % self.key)
+        except (EOFError, KeyboardInterrupt):
+            sys.stderr.write('\n')
+            sys.exit(0)
+
+
+class AuthCredentialsType(KeyValueType):
+
+    key_value_class = AuthCredentials
+
     def __call__(self, string):
         try:
-            return super(AuthCredentials, self).__call__(string)
+            return super(AuthCredentialsType, self).__call__(string)
         except argparse.ArgumentTypeError:
-            try:
-                password = getpass("Password for user '%s': " % string)
-            except (EOFError, KeyboardInterrupt):
-                sys.stderr.write('\n')
-                sys.exit(0)
-            return KeyValue(key=string, value=password, sep=SEP_COMMON,
-                            orig=string)
+            # No password provided, will prompt for it later.
+            return self.key_value_class(
+                key=string,
+                value=None,
+                sep=SEP_COMMON,
+                orig=string
+            )
 
 
 def parse_items(items, data=None, headers=None, files=None):

tests/tests.py

@@ -286,6 +286,16 @@ class AuthTest(BaseTestCase):
         self.assertIn('"authenticated": true', r)
         self.assertIn('"user": "user"', r)
 
+    def test_password_prompt(self):
+        cliparse.AuthCredentials._getpass = lambda self, prompt: 'password'
+
+        r = http('--auth', 'user',
+                 'GET', 'httpbin.org/basic-auth/user/password')
+
+        self.assertIn('HTTP/1.1 200', r)
+        self.assertIn('"authenticated": true', r)
+        self.assertIn('"user": "user"', r)
+
 
 #################################################################
 # CLI argument parsing related tests.