From f672145138af24d238bc763001f5625da9525d88 Mon Sep 17 00:00:00 2001
From: ikeblaster <ike@thez.info>
Date: Thu, 20 Aug 2020 17:10:14 +0200
Subject: fixes #2549 (SkypeWeb cannot connect)

---
 protocols/SkypeWeb/src/requests/oauth.h | 17 +++++++++++-
 protocols/SkypeWeb/src/skype_oauth.cpp  | 47 +++++++++++++++++++++++++++++++++
 protocols/SkypeWeb/src/skype_proto.h    |  3 ++-
 3 files changed, 65 insertions(+), 2 deletions(-)

(limited to 'protocols/SkypeWeb/src')

diff --git a/protocols/SkypeWeb/src/requests/oauth.h b/protocols/SkypeWeb/src/requests/oauth.h
index f5bf8afd1b..32cee1ec76 100644
--- a/protocols/SkypeWeb/src/requests/oauth.h
+++ b/protocols/SkypeWeb/src/requests/oauth.h
@@ -31,7 +31,7 @@ struct OAuthRequest : public AsyncHttpRequest
 	}
 
 	OAuthRequest(const char *login, const char *password, const char *cookies, const char *ppft) :
-		AsyncHttpRequest(REQUEST_POST, HOST_OTHER, "https://login.live.com/ppsecure/post.srf", &CSkypeProto::OnOAuthAuthorize)
+		AsyncHttpRequest(REQUEST_POST, HOST_OTHER, "https://login.live.com/ppsecure/post.srf", &CSkypeProto::OnOAuthConfirm)
 	{
 		this << CHAR_PARAM("wa", "wsignin1.0") << CHAR_PARAM("wp", "MBI_SSL")
 			<< CHAR_PARAM("wreply", "https://lw.skype.com/login/oauth/proxy?site_name=lw.skype.com")
@@ -44,6 +44,21 @@ struct OAuthRequest : public AsyncHttpRequest
 		this << CHAR_PARAM("login", login) << CHAR_PARAM("passwd", password) << CHAR_PARAM("PPFT", ppft);
 	}
 
+	OAuthRequest(const char *cookies, const char* ppft, const char* opid) :
+		AsyncHttpRequest(REQUEST_POST, HOST_OTHER, "https://login.live.com/ppsecure/post.srf", &CSkypeProto::OnOAuthAuthorize)
+	{
+		this << CHAR_PARAM("wa", "wsignin1.0") << CHAR_PARAM("wp", "MBI_SSL")
+			<< CHAR_PARAM("wreply", "https://lw.skype.com/login/oauth/proxy?site_name=lw.skype.com")
+			<< CHAR_PARAM("cobrandid", "90010")
+			<< CHAR_PARAM("opid", opid);
+		m_szUrl.AppendFormat("?%s", m_szParam.c_str());
+		m_szParam.Empty();
+
+		AddHeader("Cookie", cookies);
+
+		this << CHAR_PARAM("type", "28") << CHAR_PARAM("PPFT", ppft);
+	}
+
 	OAuthRequest(const char *t) :
 		AsyncHttpRequest(REQUEST_POST, HOST_LOGIN, "/login/microsoft", &CSkypeProto::OnOAuthEnd)
 	{
diff --git a/protocols/SkypeWeb/src/skype_oauth.cpp b/protocols/SkypeWeb/src/skype_oauth.cpp
index 8a202bdf09..1e6737b5cf 100644
--- a/protocols/SkypeWeb/src/skype_oauth.cpp
+++ b/protocols/SkypeWeb/src/skype_oauth.cpp
@@ -53,9 +53,56 @@ void CSkypeProto::OnOAuthStart(NETLIBHTTPREQUEST *response, AsyncHttpRequest*)
 	ptrA password(getStringA(SKYPE_SETTINGS_PASSWORD));
 	CMStringA mscookies(FORMAT, "MSPRequ=%s;MSPOK=%s;CkTst=G%lld;", scookies["MSPRequ"].c_str(), scookies["MSPOK"].c_str(), time(NULL));
 
+	cookies["MSPRequ"] = scookies["MSPRequ"];
+
 	PushRequest(new OAuthRequest(login, password, mscookies.c_str(), PPTF.c_str()));
 }
 
+void CSkypeProto::OnOAuthConfirm(NETLIBHTTPREQUEST* response, AsyncHttpRequest*) {
+	if (response == nullptr || response->pData == nullptr) {
+		ProtoBroadcastAck(NULL, ACKTYPE_LOGIN, ACKRESULT_FAILED, NULL, LOGIN_ERROR_UNKNOWN);
+		SetStatus(ID_STATUS_OFFLINE);
+		return;
+	}
+
+	std::regex regex;
+	std::smatch match;
+	std::string content = response->pData;
+	std::map<std::string, std::string> scookies;
+	std::string PPTF;
+	std::string opid;
+
+	regex = "sFT:'(.+?)'";
+	if (!std::regex_search(content, match, regex)) {
+		ProtoBroadcastAck(NULL, ACKTYPE_LOGIN, ACKRESULT_FAILED, NULL, LOGIN_ERROR_UNKNOWN);
+		SetStatus(ID_STATUS_OFFLINE);
+		return;
+	}
+	PPTF = match[1];
+
+	regex = "&opid=(.+?)'";
+	if (!std::regex_search(content, match, regex)) {
+		ProtoBroadcastAck(NULL, ACKTYPE_LOGIN, ACKRESULT_FAILED, NULL, LOGIN_ERROR_UNKNOWN);
+		SetStatus(ID_STATUS_OFFLINE);
+		return;
+	}
+	opid = match[1];
+
+	for (int i = 0; i < response->headersCount; i++) {
+		if (mir_strcmpi(response->headers[i].szName, "Set-Cookie"))
+			continue;
+
+		content = response->headers[i].szValue;
+		regex = "^(.+?)=(.+?);";
+		if (std::regex_search(content, match, regex))
+			scookies[match[1]] = match[2];
+	}
+
+	CMStringA mscookies(FORMAT, "MSPRequ=%s;MSPOK=%s;PPAuth=%s;OParams=%s;", cookies["MSPRequ"].c_str(), scookies["MSPOK"].c_str(), scookies["PPAuth"].c_str(), scookies["OParams"].c_str());
+
+	PushRequest(new OAuthRequest(mscookies.c_str(), PPTF.c_str(), opid.c_str()));
+}
+
 void CSkypeProto::OnOAuthAuthorize(NETLIBHTTPREQUEST *response, AsyncHttpRequest*)
 {
 	if (response == nullptr || response->pData == nullptr) {
diff --git a/protocols/SkypeWeb/src/skype_proto.h b/protocols/SkypeWeb/src/skype_proto.h
index 2760c47f39..d16b8f55d3 100644
--- a/protocols/SkypeWeb/src/skype_proto.h
+++ b/protocols/SkypeWeb/src/skype_proto.h
@@ -122,7 +122,8 @@ public:
 
 	// oauth
 	void OnOAuthStart(NETLIBHTTPREQUEST *response, AsyncHttpRequest *pRequest);
-	void OnOAuthAuthorize(NETLIBHTTPREQUEST *response, AsyncHttpRequest *pRequest);
+	void OnOAuthConfirm(NETLIBHTTPREQUEST* response, AsyncHttpRequest* pRequest);
+	void OnOAuthAuthorize(NETLIBHTTPREQUEST* response, AsyncHttpRequest* pRequest);
 	void OnOAuthEnd(NETLIBHTTPREQUEST *response, AsyncHttpRequest *pRequest);
 
 	void OnASMObjectCreated(NETLIBHTTPREQUEST *response, AsyncHttpRequest *pRequest);
-- 
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