HTTP: Support HTTP header in creating order. v5.0.68

trunk/doc/CHANGELOG.md

@@ -7,6 +7,7 @@ The changelog for SRS.
 
 ## SRS 5.0 Changelog
 
+* v5.0, 2022-09-30, HTTP: Support HTTP header in creating order. v5.0.68
 * v5.0, 2022-09-27, For [#2899](https://github.com/ossrs/srs/issues/2899): API: Support exporter for Prometheus. v5.0.67
 * v5.0, 2022-09-27, For [#3167](https://github.com/ossrs/srs/issues/3167): WebRTC: Refine sequence jitter algorithm. v5.0.66
 * v5.0, 2022-09-22, Fix [#3164](https://github.com/ossrs/srs/issues/3164): SRT: Choppy when audio ts gap is too large. v5.0.65

trunk/src/core/srs_core_version5.hpp

@@ -9,6 +9,6 @@
 
 #define VERSION_MAJOR       5
 #define VERSION_MINOR       0
-#define VERSION_REVISION    67
+#define VERSION_REVISION    68
 
 #endif

trunk/src/protocol/srs_protocol_http_stack.cpp

@@ -152,6 +152,10 @@ void SrsHttpHeader::set(string key, string value)
         pchar = ch;
     }
 
+    if (headers.find(key) == headers.end()) {
+        keys_.push_back(key);
+    }
+
     headers[key] = value;
 }
 
@@ -169,10 +173,19 @@ string SrsHttpHeader::get(string key)
 
 void SrsHttpHeader::del(string key)
 {
+    if (true) {
+        vector<string>::iterator it = std::find(keys_.begin(), keys_.end(), key);
+        if (it != keys_.end()) {
+            it = keys_.erase(it);
+        }
+    }
+
+    if (true) {
         map<string, string>::iterator it = headers.find(key);
         if (it != headers.end()) {
             headers.erase(it);
         }
+    }
 }
 
 int SrsHttpHeader::count()
@@ -182,10 +195,11 @@ int SrsHttpHeader::count()
 
 void SrsHttpHeader::dumps(SrsJsonObject* o)
 {
-    map<string, string>::iterator it;
-    for (it = headers.begin(); it != headers.end(); ++it) {
-        string v = it->second;
-        o->set(it->first, SrsJsonAny::str(v.c_str()));
+    vector<string>::iterator it;
+    for (it = keys_.begin(); it != keys_.end(); ++it) {
+        const string& key = *it;
+        const string& value = headers[key];
+        o->set(key, SrsJsonAny::str(value.c_str()));
     }
 }
 
@@ -217,9 +231,11 @@ void SrsHttpHeader::set_content_type(string ct)
 
 void SrsHttpHeader::write(stringstream& ss)
 {
-    map<string, string>::iterator it;
-    for (it = headers.begin(); it != headers.end(); ++it) {
-        ss << it->first << ": " << it->second << SRS_HTTP_CRLF;
+    vector<string>::iterator it;
+    for (it = keys_.begin(); it != keys_.end(); ++it) {
+        const string& key = *it;
+        const string& value = headers[key];
+        ss << key << ": " << value << SRS_HTTP_CRLF;
     }
 }
 
@@ -657,7 +673,7 @@ void SrsHttpServeMux::unhijack(ISrsHttpMatchHijacker* h)
     if (it == hijackers.end()) {
         return;
     }
-    hijackers.erase(it);
+    it = hijackers.erase(it);
 }
 
 srs_error_t SrsHttpServeMux::handle(std::string pattern, ISrsHttpHandler* handler)

trunk/src/protocol/srs_protocol_http_stack.hpp

@@ -93,6 +93,8 @@ private:
     // header fields, and ending with the entity-header fields.
     // @doc https://tools.ietf.org/html/rfc2616#section-4.2
     std::map<std::string, std::string> headers;
+    // Store keys to keep fields in order.
+    std::vector<std::string> keys_;
 public:
     SrsHttpHeader();
     virtual ~SrsHttpHeader();

trunk/src/utest/srs_utest_http.cpp

@@ -608,6 +608,58 @@ VOID TEST(ProtocolHTTPTest, HTTPHeader)
     srs_freep(o);
 }
 
+VOID TEST(ProtocolHTTPTest, HTTPHeaderOrder)
+{
+    SrsHttpHeader h;
+    h.set("User-Agent", RTMP_SIG_SRS_SERVER);
+    h.set("Server", "SRS");
+    h.set("Connection", "Close");
+
+    if (true) {
+        SrsJsonObject* o = SrsJsonObject::object();
+        SrsAutoFree(SrsJsonObject, o);
+        h.dumps(o);
+
+        ASSERT_EQ(3, o->count());
+        EXPECT_STREQ("User-Agent", o->key_at(0).c_str());
+        EXPECT_STREQ("Server", o->key_at(1).c_str());
+        EXPECT_STREQ("Connection", o->key_at(2).c_str());
+    }
+
+    if (true) {
+        h.del("User-Agent");
+
+        SrsJsonObject* o = SrsJsonObject::object();
+        SrsAutoFree(SrsJsonObject, o);
+        h.dumps(o);
+
+        ASSERT_EQ(2, o->count());
+        EXPECT_STREQ("Server", o->key_at(0).c_str());
+        EXPECT_STREQ("Connection", o->key_at(1).c_str());
+    }
+
+    if (true) {
+        h.del("Server");
+
+        SrsJsonObject* o = SrsJsonObject::object();
+        SrsAutoFree(SrsJsonObject, o);
+        h.dumps(o);
+
+        ASSERT_EQ(1, o->count());
+        EXPECT_STREQ("Connection", o->key_at(0).c_str());
+    }
+
+    if (true) {
+        h.del("Connection");
+
+        SrsJsonObject* o = SrsJsonObject::object();
+        SrsAutoFree(SrsJsonObject, o);
+        h.dumps(o);
+
+        ASSERT_EQ(0, o->count());
+    }
+}
+
 VOID TEST(ProtocolHTTPTest, HTTPServerMuxerVhost)
 {
     srs_error_t err;