ews: add ews schema version

Cherry-pick commit gromox-2.27-119-g9f500a39a .

exch/ews/context.cpp

@@ -322,13 +322,12 @@ void Cleaner::operator()(MESSAGE_CONTENT *x) {message_content_free(x);}
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
 EWSContext::EWSContext(int id, HTTP_AUTH_INFO ai, const char *data, uint64_t length,
-    const std::vector<uint16_t> &srvver, EWSPlugin &p) :
-	m_server_version(srvver),
+    EWSPlugin &p) :
 	m_ID(id),
 	m_orig(*get_request(id)),
 	m_auth_info(ai),
 	m_request(data, length),
-	m_response(m_server_version),
+	m_response(p.server_version()),
 	m_plugin(p)
 {
 	tinyxml2::XMLElement* imp = nullptr;

exch/ews/ews.cpp

@@ -348,8 +348,7 @@ http_status EWSPlugin::dispatch(int ctx_id, HTTP_AUTH_INFO& auth_info, const voi
 	using namespace std::string_literals;
 	auto &pc = contexts[ctx_id] =
 	           std::make_unique<EWSContext>(ctx_id,
-	           auth_info, static_cast<const char *>(data), len, m_server_version,
-	           *this);
+	           auth_info, static_cast<const char *>(data), len, *this);
 	EWSContext& context = *pc;
 	const XMLElement* request = context.request().body->FirstChildElement();
 	if(!request)
@@ -479,6 +478,7 @@ static constexpr cfg_directive ews_cfg_defaults[] = {
 	{"ews_pretty_response", "0", CFG_BOOL},
 	{"ews_request_logging", "0"},
 	{"ews_response_logging", "0"},
+	{"ews_schema_version", "V2017_07_11"},
 	{"smtp_server_ip", "::1", CFG_DEPRECATED},
 	{"smtp_server_port", "25", CFG_DEPRECATED},
 	CFG_TABLE_END,
@@ -501,9 +501,7 @@ void EWSPlugin::loadConfig()
 	}
 	auto str = gxcfg->get_value("reported_server_version");
 	auto &ver = m_server_version;
-	ver.clear();
-	ver.resize(4);
-	sscanf(str, "%hu.%hu.%hu.%hu", &ver[0], &ver[1], &ver[2], &ver[3]);
+	sscanf(str, "%hu.%hu.%hu.%hu", &ver.server[0], &ver.server[1], &ver.server[2], &ver.server[3]);
 
 	auto cfg = config_file_initd("exmdb_provider.cfg", get_config_path(), x500_defaults);
 	if(!cfg)
@@ -526,6 +524,7 @@ void EWSPlugin::loadConfig()
 	event_stream_interval = std::chrono::milliseconds(cfg->get_ll("ews_event_stream_interval"));
 	cache_embedded_instance_lifetime = std::chrono::milliseconds(cfg->get_ll("ews_cache_embedded_instance_lifetime"));
 	max_user_photo_size = cfg->get_ll("ews_max_user_photo_size");
+	ver.schema = cfg->get_value("ews_schema_version");
 
 	str = gxcfg->get_value("outgoing_smtp_url");
 	if (str != nullptr) {
@@ -654,7 +653,7 @@ int EWSContext::notify()
 
 	mGetStreamingEventsResponse data;
 	mGetStreamingEventsResponseMessage& msg = data.ResponseMessages.emplace_back();
-	SOAP::Envelope envelope(m_server_version);
+	SOAP::Envelope envelope(m_plugin.server_version());
 	tinyxml2::XMLElement* response = envelope.body->InsertNewChildElement("m:GetStreamingEventsResponse");
 	response->SetAttribute("xmlns:m", Structures::NS_EWS_Messages::NS_URL);
 	response->SetAttribute("xmlns:t", Structures::NS_EWS_Types::NS_URL);

exch/ews/ews.hpp

@@ -175,6 +175,8 @@ class EWSPlugin {
 	void unsubscribe(const detail::ExmdbSubscriptionKey&) const;
 	void wakeContext(int, std::chrono::milliseconds) const;
 
+	inline const SOAP::VersionInfo& server_version() const {return m_server_version;}
+
 	std::string x500_org_name; ///< organization name or empty string if not configured
 	std::string smtp_url;
 	std::string timestampFormat = " "; ///< format specification for log timestamps or empty to disable timestamps
@@ -219,7 +221,7 @@ class EWSPlugin {
 
 	std::unique_ptr<DebugCtx> debug;
 	std::vector<std::string> logFilters;
-	std::vector<uint16_t> m_server_version;
+	SOAP::VersionInfo m_server_version;
 	bool invertFilter = true;
 	bool teardown = false;
 
@@ -236,7 +238,7 @@ class EWSContext {
 
 	enum State : uint8_t {S_DEFAULT, S_WRITE, S_DONE, S_STREAM_NOTIFY};
 
-	EWSContext(int, HTTP_AUTH_INFO, const char *, uint64_t, const std::vector<uint16_t> &ver, EWSPlugin &);
+	EWSContext(int, HTTP_AUTH_INFO, const char *, uint64_t, EWSPlugin &);
 	~EWSContext();
 
 	EWSContext(const EWSContext&) = delete;
@@ -361,7 +363,6 @@ class EWSContext {
 
 	PROPERTY_NAME* getPropertyName(const std::string&, uint16_t) const;
 
-	std::vector<uint16_t> m_server_version;
 	int m_ID = 0;
 	http_status m_code = http_status::ok;
 	State m_state = S_DEFAULT;

exch/ews/soaputil.cpp

@@ -22,7 +22,7 @@ namespace gromox::EWS::SOAP
 /**
  * @brief      Generate empty SOAP Envelope
  */
-Envelope::Envelope(const std::vector<uint16_t> &ver)
+Envelope::Envelope(const VersionInfo &ver)
 {
 	auto decl = doc.NewDeclaration();
 	doc.InsertEndChild(decl);
@@ -36,11 +36,11 @@ Envelope::Envelope(const std::vector<uint16_t> &ver)
 
 	XMLElement* ServerVersionInfo = header->InsertNewChildElement("t:ServerVersionInfo");
 	ServerVersionInfo->SetAttribute("xmlns:t", NS_TYPS);
-	assert(ver.size() >= 4);
-	ServerVersionInfo->SetAttribute("MajorVersion", ver[0]);
-	ServerVersionInfo->SetAttribute("MinorVersion", ver[1]);
-	ServerVersionInfo->SetAttribute("MajorBuildNumber", ver[2]);
-	ServerVersionInfo->SetAttribute("MinorBuildNumber", ver[3]);
+	ServerVersionInfo->SetAttribute("MajorVersion", ver.server[0]);
+	ServerVersionInfo->SetAttribute("MinorVersion", ver.server[1]);
+	ServerVersionInfo->SetAttribute("MajorBuildNumber", ver.server[2]);
+	ServerVersionInfo->SetAttribute("MinorBuildNumber", ver.server[3]);
+	ServerVersionInfo->SetAttribute("Version", ver.schema.c_str());
 }
 
 /**

exch/ews/soaputil.hpp

@@ -3,9 +3,9 @@
 // This file is part of Gromox.
 
 #pragma once
+#include <array>
 #include <string>
 #include <tinyxml2.h>
-#include <vector>
 
 namespace gromox::EWS::SOAP
 {
@@ -15,13 +15,18 @@ static constexpr char NS_XSI[] = "http://www.w3.org/2001/XMLSchema-instance";
 static constexpr char NS_XSD[] = "http://www.w3.org/2001/XMLSchema";
 static constexpr char NS_TYPS[] = "http://schemas.microsoft.com/exchange/services/2006/types";
 
+struct VersionInfo {
+	std::array<uint16_t, 4> server; ///< Server version
+	std::string schema; ///< EWS schema version string
+};
+
 
 /**
  * @brief      Basic class to manage SOAP Envelopes
  */
 class Envelope {
 	public:
-	Envelope(const std::vector<uint16_t> &);
+	explicit Envelope(const VersionInfo &);
 	explicit Envelope(const char*, size_t=static_cast< size_t >(-1));
 
 	tinyxml2::XMLDocument doc; ///< XML document containing the envelope