src/libgit2/transports/credential_helpers.c

   1 /*
   2  * Copyright (C) the libgit2 contributors. All rights reserved.
   3  *
   4  * This file is part of libgit2, distributed under the GNU GPL v2 with
   5  * a Linking Exception. For full terms see the included COPYING file.
   6  */
   7
   8 #include "common.h"
   9
  10 #include "git2/credential_helpers.h"
  11
  12 int git_credential_userpass(
  13                 git_credential **cred,
  14                 const char *url,
  15                 const char *user_from_url,
  16                 unsigned int allowed_types,
  17                 void *payload)
  18 {
  19         git_credential_userpass_payload *userpass = (git_credential_userpass_payload*)payload;
  20         const char *effective_username = NULL;
  21
  22         GIT_UNUSED(url);
  23
  24         if (!userpass || !userpass->password) return -1;
  25
  26         /* Username resolution: a username can be passed with the URL, the
  27          * credentials payload, or both. Here's what we do.  Note that if we get
  28          * this far, we know that any password the url may contain has already
  29          * failed at least once, so we ignore it.
  30          *
  31          * |  Payload    |   URL    |   Used    |
  32          * +-------------+----------+-----------+
  33          * |    yes      |   no     |  payload  |
  34          * |    yes      |   yes    |  payload  |
  35          * |    no       |   yes    |  url      |
  36          * |    no       |   no     |  FAIL     |
  37          */
  38         if (userpass->username)
  39                 effective_username = userpass->username;
  40         else if (user_from_url)
  41                 effective_username = user_from_url;
  42         else
  43                 return -1;
  44
  45         if (GIT_CREDENTIAL_USERNAME & allowed_types)
  46                 return git_credential_username_new(cred, effective_username);
  47
  48         if ((GIT_CREDENTIAL_USERPASS_PLAINTEXT & allowed_types) == 0 ||
  49                         git_credential_userpass_plaintext_new(cred, effective_username, userpass->password) < 0)
  50                 return -1;
  51
  52         return 0;
  53 }
  54
  55 /* Deprecated credential functions */
  56
  57 #ifndef GIT_DEPRECATE_HARD
  58 int git_cred_userpass(
  59         git_credential **out,
  60         const char *url,
  61         const char *user_from_url,
  62         unsigned int allowed_types,
  63         void *payload)
  64 {
  65         return git_credential_userpass(out, url, user_from_url,
  66                 allowed_types, payload);
  67 }
  68 #endif