Improve these comments a bit.

[nmh] / sbr / oauth.c

diff --git a/sbr/oauth.c b/sbr/oauth.c
index 3433fba0545b714d4d21ada77cfb1f942ffe0dac..0cc95e4e3c2ccf0f073a8dd05aefbb520bd088cd 100755 (executable)
--- a/sbr/oauth.c
+++ b/sbr/oauth.c
@@ -26,13 +26,13 @@
 
 #define JSON_TYPE "application/json"
 
-/* We pretend access tokens expire 30 seconds earlier than they actually do to
+/* We pretend access tokens expire 60 seconds earlier than they actually do to
  * allow for separate processes to use and refresh access tokens.  The process
  * that uses the access token (post) has an error if the token is expired; the
  * process that refreshes the access token (send) must have already refreshed if
  * the expiration is close.
  *
- * 30s is arbitrary, and hopefully is enough to allow for clock skew.
+ * 60s is arbitrary, and hopefully is enough to allow for clock skew.
  * Currently only Gmail supports XOAUTH2, and seems to always use a token
  * life-time of 3600s, but that is not guaranteed.  It is possible for Gmail to
  * issue an access token with a life-time so short that even after send
@@ -44,7 +44,7 @@
  * (not counting header and not null-terminated) */
 #define RESPONSE_BODY_MAX 8192
 
-/* Maxium size for URLs and URI-encoded query strings, null-terminated.
+/* Maximum size for URLs and URI-encoded query strings, null-terminated.
  *
  * Actual maximum we need is based on the size of tokens (limited by
  * RESPONSE_BODY_MAX), code user copies from a web page (arbitrarily large), and
@@ -127,17 +127,16 @@ static boolean get_json_strings(const char *, size_t, FILE *, ...);
 static boolean make_query_url(char *, size_t, CURL *, const char *, ...);
 static boolean post(struct curl_ctx *, const char *, const char *);
 
-char *
-mh_oauth_do_xoauth(const char *user, const char *svc, FILE *log)
+int
+mh_oauth_do_xoauth(const char *user, const char *svc, unsigned char **oauth_res,
+                  size_t *oauth_res_len, FILE *log)
 {
     mh_oauth_ctx *ctx;
     mh_oauth_cred *cred;
     char *fn;
     int failed_to_lock = 0;
     FILE *fp;
-    size_t client_res_len;
     char *client_res;
-    char *client_res_b64;
 
     if (!mh_oauth_new (&ctx, svc)) adios(NULL, mh_oauth_get_err_string(ctx));
 
@@ -183,18 +182,14 @@ mh_oauth_do_xoauth(const char *user, const char *svc, FILE *log)
     free(fn);
 
     /* XXX writeBase64raw modifies the source buffer!  make a copy */
-    client_res = getcpy(mh_oauth_sasl_client_response(&client_res_len, user,
+    client_res = getcpy(mh_oauth_sasl_client_response(oauth_res_len, user,
                                                       cred));
     mh_oauth_cred_free(cred);
     mh_oauth_free(ctx);
-    client_res_b64 = mh_xmalloc(((((client_res_len) + 2) / 3 ) * 4) + 1);
-    if (writeBase64raw((unsigned char *)client_res, client_res_len,
-                       (unsigned char *)client_res_b64) != OK) {
-        adios(NULL, "base64 encoding of XOAUTH2 client response failed");
-    }
-    free(client_res);
 
-    return client_res_b64;
+    *oauth_res = (unsigned char *) client_res;
+
+    return OK;
 }
 
 static boolean