From 3eca9a7653498e3c2f16e4bdcb43bcfe6aaa8ebb Mon Sep 17 00:00:00 2001
From: George Hazan <ghazan@miranda.im>
Date: Sun, 19 Jun 2022 21:11:12 +0300
Subject: Jabber: HTTP autodetect

---
 protocols/JabberG/src/jabber_iqid.cpp | 74 +++++++++++++++++++++++++++++++++++
 protocols/JabberG/src/jabber_proto.h  |  2 +
 2 files changed, 76 insertions(+)

(limited to 'protocols/JabberG')

diff --git a/protocols/JabberG/src/jabber_iqid.cpp b/protocols/JabberG/src/jabber_iqid.cpp
index 3438bb9087..640bc13752 100644
--- a/protocols/JabberG/src/jabber_iqid.cpp
+++ b/protocols/JabberG/src/jabber_iqid.cpp
@@ -29,6 +29,71 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "jabber_caps.h"
 #include "jabber_privacy.h"
 
+void CJabberProto::OnIqResultServerItemsInfo(const TiXmlElement *iqNode, CJabberIqInfo *pInfo)
+{
+	if (iqNode == nullptr)
+		return;
+
+	if (pInfo->GetIqType() != JABBER_IQ_TYPE_RESULT)
+		return;
+
+	const char *from = XmlGetAttr(iqNode, "from");
+	if (!from)
+		return;
+
+	// HTTP Upload
+	auto query = XmlGetChildByTag(iqNode, "query", "xmlns", JABBER_FEAT_DISCO_INFO);
+
+	if (XmlGetChildByTag(query, "feature", "var", JABBER_FEAT_UPLOAD) || XmlGetChildByTag(query, "feature", "var", JABBER_FEAT_UPLOAD0)) {
+		for (auto *x : TiXmlFilter(query, "x")) {
+			if (mir_strcmp(XmlGetAttr(x, "type"), "result"))
+				continue;
+			if (mir_strcmp(XmlGetAttr(x, "xmlns"), JABBER_FEAT_DATA_FORMS))
+				continue;
+
+			int iVersion = -1, iMaxSize = -1;
+			for (auto *field : TiXmlFilter(x, "field")) {
+				const char *var = XmlGetAttr(field, "var");
+				const char *value = XmlGetChildText(field, "value");
+				if (!mir_strcmp(var, "FORM_TYPE")) {
+					if (!mir_strcmp(value, JABBER_FEAT_UPLOAD0))
+						iVersion = 0;
+					if (!mir_strcmp(value, JABBER_FEAT_UPLOAD))
+						iVersion = 1;
+				}
+
+				if (!mir_strcmp(var, "max-file-size"))
+					iMaxSize = atoi(value);
+			}
+
+			if (iVersion > 0) {
+				m_bUseHttpUpload = true;
+				setString("HttpUpload", from);
+				setByte("HttpUploadVer", iVersion);
+				if (iMaxSize > 0)
+					setDword("HttpUploadMaxSize", iMaxSize);
+				break;
+			}
+		}
+	}
+}
+
+void CJabberProto::OnIqResultServerDiscoItems(const TiXmlElement *iqNode, CJabberIqInfo *pInfo)
+{
+	if (iqNode == nullptr)
+		return;
+
+	if (pInfo->GetIqType() == JABBER_IQ_TYPE_RESULT) {
+		for (auto *item : TiXmlFilter(XmlGetChildByTag(iqNode, "query", "xmlns", JABBER_FEAT_DISCO_ITEMS), "item")) {
+			const char *szJid = XmlGetAttr(item, "jid");
+
+			XmlNodeIq iq(AddIQ(&CJabberProto::OnIqResultServerItemsInfo, JABBER_IQ_TYPE_GET));
+			iq << XATTR("from", m_ThreadInfo->fullJID) << XATTR("to", szJid) << XQUERY(JABBER_FEAT_DISCO_INFO);
+			m_ThreadInfo->send(iq);
+		}
+	}
+}
+
 void CJabberProto::OnIqResultServerDiscoInfo(const TiXmlElement *iqNode, CJabberIqInfo *pInfo)
 {
 	if (iqNode == nullptr)
@@ -94,6 +159,15 @@ void CJabberProto::OnIqResultServerDiscoInfo(const TiXmlElement *iqNode, CJabber
 		m_ThreadInfo->jabberServerCaps |= jcb;
 
 	OnProcessLoginRq(m_ThreadInfo, JABBER_LOGIN_SERVERINFO);
+
+	// http upload autodetect
+	if ((char)getByte("HttpUploadVer", -1) == -1) {
+		setByte("HttpUploadVer", 0); // not to call autodetect twice
+
+		XmlNodeIq iq(AddIQ(&CJabberProto::OnIqResultServerDiscoItems, JABBER_IQ_TYPE_GET));
+		iq << XATTR("from", m_ThreadInfo->fullJID) << XATTR("to", m_ThreadInfo->conn.server) << XCHILDNS("query", JABBER_FEAT_DISCO_ITEMS);
+		m_ThreadInfo->send(iq);
+	}
 }
 
 void CJabberProto::OnIqResultNestedRosterGroups(const TiXmlElement *iqNode, CJabberIqInfo *pInfo)
diff --git a/protocols/JabberG/src/jabber_proto.h b/protocols/JabberG/src/jabber_proto.h
index bc1c604c9c..b6b0754d6e 100644
--- a/protocols/JabberG/src/jabber_proto.h
+++ b/protocols/JabberG/src/jabber_proto.h
@@ -564,6 +564,8 @@ struct CJabberProto : public PROTO<CJabberProto>, public IJabberInterface
 	void       OnIqResultMucGetVoiceList(const TiXmlElement *iqNode, CJabberIqInfo *pInfo);
 	void       OnIqResultNestedRosterGroups(const TiXmlElement *iqNode, CJabberIqInfo *pInfo);
 	void       OnIqResultNotes(const TiXmlElement *iqNode, CJabberIqInfo *pInfo);
+	void       OnIqResultServerDiscoItems(const TiXmlElement *iqNode, CJabberIqInfo *pInfo);
+	void       OnIqResultServerItemsInfo(const TiXmlElement *iqNode, CJabberIqInfo *pInfo);
 	void       OnIqResultSession(const TiXmlElement *iqNode, CJabberIqInfo *pInfo);
 	void       OnIqResultSetAuth(const TiXmlElement *iqNode, CJabberIqInfo *pInfo);
 	void       OnIqResultSetBookmarks(const TiXmlElement *iqNode, CJabberIqInfo *pInfo);
-- 
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