From: "Kyle J. McKay" <mack...@gmail.com>

The <url> value is considered a match to a url if the <url> value
is either an exact match or a prefix of the url which ends on a
path component boundary ('/').  So "https://example.com/test"; will
match "https://example.com/test"; and "https://example.com/test/too";
but not "https://example.com/testextra";.

Longer matches take precedence over shorter matches with
environment variable settings taking precedence over all.

With this configuration:

[http]
        useragent = other-agent
        noEPSV = true
[http "https://example.com";]
        useragent = example-agent
        sslVerify = false
[http "https://example.com/path";]
        useragent = path-agent

The "https://other.example.com/"; url will have useragent
"other-agent" and sslVerify will be on.

The "https://example.com/"; url will have useragent
"example-agent" and sslVerify will be off.

The "https://example.com/path/sub"; url will have useragent
"path-agent" and sslVerify will be off.

All three of the examples will have noEPSV enabled.

Signed-off-by: Kyle J. McKay <mack...@gmail.com>
---

The credentials configuration values already support url-specific
configuration items in the form credential.<url>.*.  This patch
adds similar support for http configuration values.

 Documentation/config.txt |  11 ++++
 http.c                   | 140 +++++++++++++++++++++++++++++++++++++++++------
 2 files changed, 134 insertions(+), 17 deletions(-)

diff --git a/Documentation/config.txt b/Documentation/config.txt
index b4d4887..3731a3a 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -1531,6 +1531,17 @@ http.useragent::
        of common USER_AGENT strings (but not including those like git/1.7.1).
        Can be overridden by the 'GIT_HTTP_USER_AGENT' environment variable.
 
+http.<url>.*::
+       Any of the http.* options above can be applied selectively to some urls.
+       For example "http.https://example.com.useragent"; would set the user
+       agent only for https connections to example.com.  The <url> value
+       matches a url if it is an exact match or a prefix of the url matching
+       at a '/' boundary.  Longer <url> matches take precedence over shorter
+       ones with the environment variable settings taking precedence over all.
+       Note that <url> must match the url exactly (other than possibly being a
+       prefix).  This means any user, password and/or port setting that appears
+       in a url must also appear in <url> to have a successful match.
+
 i18n.commitEncoding::
        Character encoding the commit messages are stored in; Git itself
        does not care per se, but this information is necessary e.g. when
diff --git a/http.c b/http.c
index 2d086ae..68dc789 100644
--- a/http.c
+++ b/http.c
@@ -30,6 +30,34 @@ static CURL *curl_default;
 
 char curl_errorstr[CURL_ERROR_SIZE];
 
+enum http_option_type {
+       opt_post_buffer = 0,
+       opt_min_sessions,
+#ifdef USE_CURL_MULTI
+       opt_max_requests,
+#endif
+       opt_ssl_verify,
+       opt_ssl_try,
+       opt_ssl_cert,
+#if LIBCURL_VERSION_NUM >= 0x070903
+       opt_ssl_key,
+#endif
+#if LIBCURL_VERSION_NUM >= 0x070908
+       opt_ssl_capath,
+#endif
+       opt_ssl_cainfo,
+       opt_low_speed,
+       opt_low_time,
+       opt_no_epsv,
+       opt_http_proxy,
+       opt_cookie_file,
+       opt_user_agent,
+       opt_passwd_req,
+       opt_max
+};
+
+static int http_option_maxlen[opt_max];
+
 static int curl_ssl_verify = -1;
 static int curl_ssl_try;
 static const char *ssl_cert;
@@ -141,34 +169,99 @@ static void process_curl_messages(void)
 }
 #endif
 
+static int http_options_url_match_prefix(const char *url, const char 
*url_prefix)
+{
+       /*
+        * url_prefix matches url if url_prefix is an exact match for url or it
+        * is a prefix of url and the match ends on a path component boundary.
+        * url_prefix is considered to have an implicit '/' on the end for
+        * matching purposes if it does not already and it is shorter than url.
+        * the return value is the length of the match in characters (excluding
+        * any final '/') or 0 for no match.
+        */
+       size_t url_len, url_prefix_len = strlen(url_prefix);
+       if (!url_prefix_len || strncmp(url, url_prefix, url_prefix_len))
+               return 0;
+       url_len = strlen(url);
+       if (url_len == url_prefix_len || url[url_prefix_len - 1] == '/' || 
url[url_prefix_len] == '/')
+               return url[url_prefix_len - 1] == '/' ? url_prefix_len - 1 : 
url_prefix_len;
+       return 0;
+}
+
 static int http_options(const char *var, const char *value, void *cb)
 {
-       if (!strcmp("http.sslverify", var)) {
+/*
+ * Macro to ignore matches with a match length less than previously seen
+ * for the same option type and to remember the largest match length seen so
+ * far for each option type
+ */
+#define CHECK_MATCHLEN(opt) \
+       if (http_option_maxlen[opt] > matchlen) return 0; \
+       else http_option_maxlen[opt] = matchlen
+
+       const char *url = (const char *)cb;
+       const char *key, *dot;
+       int matchlen = 0;
+
+       key = skip_prefix(var, "http.");
+       if (!key)
+               return git_default_config(var, value, cb);
+
+       /*
+        * If the part following the leading "http." contains a '.' then check
+        * to see if the part between "http." and the last '.' is a match to
+        * url.  if it's not then ignore the setting.  Otherwise set key to
+        * point to the option which is the final part after the final '.' and
+        * use key in subsequent comparisons to determine the option type.
+        */
+       dot = strrchr(key, '.');
+       if (dot) {
+               char *config_url = xmemdupz(key, dot - key);
+               matchlen = http_options_url_match_prefix(url, config_url);
+               free(config_url);
+               if (!matchlen)
+                       return 0;
+               key = dot + 1;
+       }
+
+       if (!strcmp("sslverify", key)) {
+               CHECK_MATCHLEN(opt_ssl_verify);
                curl_ssl_verify = git_config_bool(var, value);
                return 0;
        }
-       if (!strcmp("http.sslcert", var))
+       if (!strcmp("sslcert", key)) {
+               CHECK_MATCHLEN(opt_ssl_cert);
                return git_config_string(&ssl_cert, var, value);
+       }
 #if LIBCURL_VERSION_NUM >= 0x070903
-       if (!strcmp("http.sslkey", var))
+       if (!strcmp("sslkey", key)) {
+               CHECK_MATCHLEN(opt_ssl_key);
                return git_config_string(&ssl_key, var, value);
+       }
 #endif
 #if LIBCURL_VERSION_NUM >= 0x070908
-       if (!strcmp("http.sslcapath", var))
+       if (!strcmp("sslcapath", key)) {
+               CHECK_MATCHLEN(opt_ssl_capath);
                return git_config_string(&ssl_capath, var, value);
+       }
 #endif
-       if (!strcmp("http.sslcainfo", var))
+       if (!strcmp("sslcainfo", key)) {
+               CHECK_MATCHLEN(opt_ssl_cainfo);
                return git_config_string(&ssl_cainfo, var, value);
-       if (!strcmp("http.sslcertpasswordprotected", var)) {
+       }
+       if (!strcmp("sslcertpasswordprotected", key)) {
+               CHECK_MATCHLEN(opt_passwd_req);
                if (git_config_bool(var, value))
                        ssl_cert_password_required = 1;
                return 0;
        }
-       if (!strcmp("http.ssltry", var)) {
+       if (!strcmp("ssltry", key)) {
+               CHECK_MATCHLEN(opt_ssl_try);
                curl_ssl_try = git_config_bool(var, value);
                return 0;
        }
-       if (!strcmp("http.minsessions", var)) {
+       if (!strcmp("minsessions", key)) {
+               CHECK_MATCHLEN(opt_min_sessions);
                min_curl_sessions = git_config_int(var, value);
 #ifndef USE_CURL_MULTI
                if (min_curl_sessions > 1)
@@ -177,42 +270,55 @@ static int http_options(const char *var, const char 
*value, void *cb)
                return 0;
        }
 #ifdef USE_CURL_MULTI
-       if (!strcmp("http.maxrequests", var)) {
+       if (!strcmp("maxrequests", key)) {
+               CHECK_MATCHLEN(opt_max_requests);
                max_requests = git_config_int(var, value);
                return 0;
        }
 #endif
-       if (!strcmp("http.lowspeedlimit", var)) {
+       if (!strcmp("lowspeedlimit", key)) {
+               CHECK_MATCHLEN(opt_low_speed);
                curl_low_speed_limit = (long)git_config_int(var, value);
                return 0;
        }
-       if (!strcmp("http.lowspeedtime", var)) {
+       if (!strcmp("lowspeedtime", key)) {
+               CHECK_MATCHLEN(opt_low_time);
                curl_low_speed_time = (long)git_config_int(var, value);
                return 0;
        }
 
-       if (!strcmp("http.noepsv", var)) {
+       if (!strcmp("noepsv", key)) {
+               CHECK_MATCHLEN(opt_no_epsv);
                curl_ftp_no_epsv = git_config_bool(var, value);
                return 0;
        }
-       if (!strcmp("http.proxy", var))
+       if (!strcmp("proxy", key)) {
+               CHECK_MATCHLEN(opt_http_proxy);
                return git_config_string(&curl_http_proxy, var, value);
+       }
 
-       if (!strcmp("http.cookiefile", var))
+       if (!strcmp("cookiefile", key)) {
+               CHECK_MATCHLEN(opt_cookie_file);
                return git_config_string(&curl_cookie_file, var, value);
+       }
 
-       if (!strcmp("http.postbuffer", var)) {
+       if (!strcmp("postbuffer", key)) {
+               CHECK_MATCHLEN(opt_post_buffer);
                http_post_buffer = git_config_int(var, value);
                if (http_post_buffer < LARGE_PACKET_MAX)
                        http_post_buffer = LARGE_PACKET_MAX;
                return 0;
        }
 
-       if (!strcmp("http.useragent", var))
+       if (!strcmp("useragent", key)) {
+               CHECK_MATCHLEN(opt_user_agent);
                return git_config_string(&user_agent, var, value);
+       }
 
        /* Fall back on the default ones */
        return git_default_config(var, value, cb);
+
+#undef CHECKLEN
 }
 
 static void init_curl_http_auth(CURL *result)
@@ -344,7 +450,7 @@ void http_init(struct remote *remote, const char *url, int 
proactive_auth)
 
        http_is_verbose = 0;
 
-       git_config(http_options, NULL);
+       git_config(http_options, (void *)url);
 
        curl_global_init(CURL_GLOBAL_ALL);
 
-- 
1.8.3

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