fix #372, support transform vhost of edge 2.0.155.

@@ -562,6 +562,7 @@ Supported operating systems and hardware:
 
 ### SRS 2.0 history
 
+* v2.0, 2015-03-30, for [#372](https://github.com/winlinvip/simple-rtmp-server/issues/372), support transform vhost of edge 2.0.155.
 * v2.0, 2015-03-30, for [#366](https://github.com/winlinvip/simple-rtmp-server/issues/366), config hls to disable cleanup of ts. 2.0.154.
 * v2.0, 2015-03-31, support server cycle handler. 2.0.153.
 * v2.0, 2015-03-31, support on_hls for http hooks. 2.0.152.

@@ -284,6 +284,17 @@ vhost same.edge.srs.com {
     token_traverse  off;
 }
 
+# vhost for edge, edge transform vhost to fetch from another vhost.
+vhost transform.edge.srs.com {
+    mode            remote;
+    origin          127.0.0.1:1935;
+    # the vhost to transform for edge,
+    # to fetch from the specified vhost at origin,
+    # if not specified, use the current vhost of edge in origin, the variable [vhost].
+    # default: [vhost]
+    vhost           same.edge.srs.com;
+}
+
 # vhost for dvr
 vhost dvr.srs.com {
     # dvr RTMP stream to file,

+# the config for srs origin-edge cluster
+# @see https://github.com/winlinvip/simple-rtmp-server/wiki/v2_CN_Edge#transform-vhost
+# @see full.conf for detail config.
+
+listen              1935;
+max_connections     1000;
+vhost __defaultVhost__ {
+}
+vhost source.srs.com {
+    ingest livestream {
+        enabled      on;
+        input {
+            type    file;
+            url     ./doc/source.200kbps.768x320.flv;
+        }
+        ffmpeg      ./objs/ffmpeg/bin/ffmpeg;
+        engine {
+            enabled          off;
+            output          rtmp://127.0.0.1:[port]/live?vhost=[vhost]/livestream;
+        }
+    }
+}
+vhost transform.srs.edge.com {
+    mode            remote;
+    origin          127.0.0.1:1935;
+    vhost           source.srs.com;
+}
\ No newline at end of file

@@ -1409,7 +1409,7 @@ int SrsConfig::check_config()
             SrsConfDirective* conf = vhost->at(i);
             string n = conf->name;
             if (n != "enabled" && n != "chunk_size"
-                && n != "mode" && n != "origin" && n != "token_traverse"
+                && n != "mode" && n != "origin" && n != "token_traverse" && n != "vhost"
                 && n != "dvr" && n != "ingest" && n != "hls" && n != "http_hooks"
                 && n != "gop_cache" && n != "queue_length"
                 && n != "refer" && n != "refer_publish" && n != "refer_play"
@@ -2517,12 +2517,12 @@ bool SrsConfig::get_vhost_is_edge(SrsConfDirective* vhost)
     SrsConfDirective* conf = vhost;
     
     if (!conf) {
-        return false;
+        return SRS_CONF_DEFAULT_EDGE_MODE;
     }
     
     conf = conf->get("mode");
     if (!conf || conf->arg0() != "remote") {
-        return false;
+        return SRS_CONF_DEFAULT_EDGE_MODE;
     }
     
     return true;
@@ -2544,17 +2544,33 @@ bool SrsConfig::get_vhost_edge_token_traverse(string vhost)
     SrsConfDirective* conf = get_vhost(vhost);
     
     if (!conf) {
-        return false;
+        return SRS_CONF_DEFAULT_EDGE_TOKEN_TRAVERSE;
     }
     
     conf = conf->get("token_traverse");
     if (!conf || conf->arg0() != "on") {
-        return false;
+        return SRS_CONF_DEFAULT_EDGE_TOKEN_TRAVERSE;
     }
     
     return true;
 }
 
+string SrsConfig::get_vhost_edge_transform_vhost(string vhost)
+{
+    SrsConfDirective* conf = get_vhost(vhost);
+    
+    if (!conf) {
+        return SRS_CONF_DEFAULT_EDGE_TRANSFORM_VHOST;
+    }
+    
+    conf = conf->get("vhost");
+    if (!conf || conf->arg0().empty()) {
+        return SRS_CONF_DEFAULT_EDGE_TRANSFORM_VHOST;
+    }
+    
+    return conf->arg0();
+}
+
 bool SrsConfig::get_security_enabled(string vhost)
 {
     SrsConfDirective* conf = get_vhost(vhost);

@@ -106,6 +106,10 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define SRS_CONF_DEFAULT_TRANSCODE_IFORMAT "flv"
 #define SRS_CONF_DEFAULT_TRANSCODE_OFORMAT "flv"
 
+#define SRS_CONF_DEFAULT_EDGE_MODE false
+#define SRS_CONF_DEFAULT_EDGE_TOKEN_TRAVERSE false
+#define SRS_CONF_DEFAULT_EDGE_TRANSFORM_VHOST "[vhost]"
+
 // hds default value
 #define SRS_CONF_DEFAULT_HDS_PATH       "./objs/nginx/html"
 #define SRS_CONF_DEFAULT_HDS_WINDOW     (60)
@@ -688,6 +692,11 @@ public:
     * all clients connected to edge must be tranverse to origin to verify.
     */
     virtual bool                get_vhost_edge_token_traverse(std::string vhost);
+    /**
+     * get the transformed vhost for edge,
+     * @see https://github.com/winlinvip/simple-rtmp-server/issues/372
+     */
+    virtual std::string         get_vhost_edge_transform_vhost(std::string vhost);
 // vhost security section
 public:
     /**

@@ -43,6 +43,7 @@ using namespace std;
 #include <srs_rtmp_msg_array.hpp>
 #include <srs_app_utility.hpp>
 #include <srs_rtmp_amf0.hpp>
+#include <srs_kernel_utility.hpp>
 
 // when error, edge ingester sleep for a while and retry.
 #define SRS_EDGE_INGESTER_SLEEP_US (int64_t)(1*1000*1000LL)
@@ -240,9 +241,18 @@ int SrsEdgeIngester::connect_app(string ep_server, string ep_port)
     std::string local_ip = ips[_srs_config->get_stats_network()];
     data->set("srs_server_ip", SrsAmf0Any::str(local_ip.c_str()));
     
+    // support vhost tranform for edge,
+    // @see https://github.com/winlinvip/simple-rtmp-server/issues/372
+    std::string vhost = _srs_config->get_vhost_edge_transform_vhost(req->vhost);
+    vhost = srs_string_replace(vhost, "[vhost]", req->vhost);
     // generate the tcUrl
     std::string param = "";
-    std::string tc_url = srs_generate_tc_url(ep_server, req->vhost, req->app, ep_port, param);
+    std::string tc_url = srs_generate_tc_url(ep_server, vhost, req->app, ep_port, param);
+    srs_trace("edge ingest from %s:%s at %s", ep_server.c_str(), ep_port.c_str(), tc_url.c_str());
+    
+    // replace the tcUrl in request,
+    // which will replace the tc_url in client.connect_app().
+    req->tcUrl = tc_url;
     
     // upnode server identity will show in the connect_app of client.
     // @see https://github.com/winlinvip/simple-rtmp-server/issues/160
@@ -662,9 +672,18 @@ int SrsEdgeForwarder::connect_app(string ep_server, string ep_port)
     std::string local_ip = ips[_srs_config->get_stats_network()];
     data->set("srs_server_ip", SrsAmf0Any::str(local_ip.c_str()));
     
+    // support vhost tranform for edge,
+    // @see https://github.com/winlinvip/simple-rtmp-server/issues/372
+    std::string vhost = _srs_config->get_vhost_edge_transform_vhost(req->vhost);
+    vhost = srs_string_replace(vhost, "[vhost]", req->vhost);
     // generate the tcUrl
     std::string param = "";
-    std::string tc_url = srs_generate_tc_url(ep_server, req->vhost, req->app, ep_port, param);
+    std::string tc_url = srs_generate_tc_url(ep_server, vhost, req->app, ep_port, param);
+    srs_trace("edge forward to %s:%s at %s", ep_server.c_str(), ep_port.c_str(), tc_url.c_str());
+    
+    // replace the tcUrl in request,
+    // which will replace the tc_url in client.connect_app().
+    req->tcUrl = tc_url;
     
     // upnode server identity will show in the connect_app of client.
     // @see https://github.com/winlinvip/simple-rtmp-server/issues/160

@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // current release version
 #define VERSION_MAJOR       2
 #define VERSION_MINOR       0
-#define VERSION_REVISION    154
+#define VERSION_REVISION    155
 
 // server info.
 #define RTMP_SIG_SRS_KEY "SRS"