[#1722] Use a vector<string> instead of a simgle string when init crypto attribute

sflphone-common/src/audio/audiortp/AudioSrtpSession.cpp

@@ -62,10 +62,12 @@ AudioSrtpSession::AudioSrtpSession (ManagerImpl * manager, SIPCall * sipcall) :
 }
 
  
-std::string AudioSrtpSession::getLocalCryptoInfo() {
+std::vector<std::string> AudioSrtpSession::getLocalCryptoInfo() {
 
     _debug("Get Cryptographic info from this rtp session");
 
+    std::vector<std::string> crypto_vector;
+
     // @TODO we should return a vector containing supported 
     // cryptographic context tagged 1, 2, 3...
     std::string tag = "1";
@@ -79,13 +81,15 @@ std::string AudioSrtpSession::getLocalCryptoInfo() {
     srtp_keys.append("|2^20|1:32");
 
     // generate crypto attribute
-    std::string crypto = tag.append(" ");
-    crypto += crypto_suite.append(" ");
-    crypto += srtp_keys;
+    std::string crypto_attr = tag.append(" ");
+    crypto_attr += crypto_suite.append(" ");
+    crypto_attr += srtp_keys;
+
+    _debug("%s", crypto_attr.c_str());
 
-    _debug("%s", crypto.c_str());
+    crypto_vector.push_back(crypto_attr);
 
-    return crypto;
+    return crypto_vector;
 }
 
 

sflphone-common/src/audio/audiortp/AudioSrtpSession.h

@@ -23,6 +23,7 @@
 #include "sip/SdesNegotiator.h"
 
 #include <ccrtp/CryptoContext.h>
+#include <vector>
 
 class SdesNegotiator;
 class ManagerImpl;
@@ -68,7 +69,7 @@ namespace sfl {
 
             AudioSrtpSession(ManagerImpl * manager, SIPCall * sipcall);
 
-	    std::string getLocalCryptoInfo(void);
+	    std::vector<std::string> getLocalCryptoInfo(void);
 
 	    void setRemoteCryptoInfo(sfl::SdesNegotiator& nego);
 

sflphone-common/src/sip/sdp.cpp

@@ -365,12 +365,16 @@ void Sdp::sdp_add_media_description()
 }
 
 // @TODO crypto should be a vector of string
-void Sdp::sdp_add_sdes_attribute (std::string crypto)
+void Sdp::sdp_add_sdes_attribute (std::vector<std::string>& crypto)
 {
 
     // temporary buffer used to store crypto attribute
     char tempbuf[256];
 
+    std::vector<std::string>::iterator iter = crypto.begin();
+
+    while(iter != crypto.end()) {
+
         // the attribute to add to sdp
         pjmedia_sdp_attr *attribute = (pjmedia_sdp_attr*) pj_pool_zalloc(_pool, sizeof(pjmedia_sdp_attr));
 
@@ -380,7 +384,7 @@ void Sdp::sdp_add_sdes_attribute (std::string crypto)
 
     
 	int len = pj_ansi_snprintf(tempbuf, sizeof(tempbuf),
-			       "%.*s",(int)crypto.size(), crypto.c_str());
+				   "%.*s",(int)(*iter).size(), (*iter).c_str());
  
 	attribute->value.slen = len;
 	attribute->value.ptr = (char*) pj_pool_alloc (_pool, attribute->value.slen+1);
@@ -398,6 +402,9 @@ void Sdp::sdp_add_sdes_attribute (std::string crypto)
 	    }
 	}
 
+
+	iter++;
+    }
 }
 
 

sflphone-common/src/sip/sdp.h

@@ -108,7 +108,7 @@ class Sdp {
 	/* Set the srtp _master_key
          * @param mk The Master Key of a srtp session.
          */
-        inline void set_srtp_crypto(const std::string& mk) { _srtp_crypto = mk; }
+        inline void set_srtp_crypto(const std::vector<std::string> lc) { _srtp_crypto = lc; }
         
         /*
          * On building an invite outside a dialog, build the local offer and create the
@@ -258,8 +258,8 @@ class Sdp {
 
         std::string _zrtp_hello_hash;
 
-	/** "a=crypto" sdes attribute obtained from AudioSrtpSession */
-	std::string _srtp_crypto;
+	/** "a=crypto" sdes local attributes obtained from AudioSrtpSession */
+	std::vector<std::string> _srtp_crypto;
         
         Sdp(const Sdp&); //No Copy Constructor
         Sdp& operator=(const Sdp&); //No Assignment Operator
@@ -355,7 +355,7 @@ class Sdp {
          *
          * @param media The media to add the srtp attribute to 
 	 */
-	void sdp_add_sdes_attribute(std::string crypto);
+	void sdp_add_sdes_attribute(std::vector<std::string>& crypto);
 
         /* 
          * Adds a zrtp-hash  attribute to