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-rw-r--r--src/Protocol/MojangAPI.cpp480
1 files changed, 480 insertions, 0 deletions
diff --git a/src/Protocol/MojangAPI.cpp b/src/Protocol/MojangAPI.cpp
new file mode 100644
index 000000000..45baa5a4f
--- /dev/null
+++ b/src/Protocol/MojangAPI.cpp
@@ -0,0 +1,480 @@
+
+// MojangAPI.cpp
+
+// Implements the cMojangAPI class representing the various API points provided by Mojang's webservices, and a cache for their results
+
+#include "Globals.h"
+#include "MojangAPI.h"
+#include "SQLiteCpp/Database.h"
+#include "SQLiteCpp/Statement.h"
+#include "inifile/iniFile.h"
+#include "json/json.h"
+#include "PolarSSL++/BlockingSslClientSocket.h"
+
+
+
+
+
+/** The maximum age for items to be kept in the cache. Any item older than this will be removed. */
+const Int64 MAX_AGE = 7 * 24 * 60 * 60; // 7 days ago
+
+/** The maximum number of names to send in a single query */
+const int MAX_PER_QUERY = 100;
+
+
+
+
+
+#define DEFAULT_NAME_TO_UUID_SERVER "api.mojang.com"
+#define DEFAULT_NAME_TO_UUID_ADDRESS "/profiles/minecraft"
+
+
+
+
+
+
+/** This is the data of the root certs for Starfield Technologies, the CA that signed sessionserver.mojang.com's cert:
+Downloaded from http://certs.starfieldtech.com/repository/ */
+static const AString & StarfieldCACert(void)
+{
+ static const AString Cert(
+ // G2 cert
+ "-----BEGIN CERTIFICATE-----\n"
+ "MIID3TCCAsWgAwIBAgIBADANBgkqhkiG9w0BAQsFADCBjzELMAkGA1UEBhMCVVMx\n"
+ "EDAOBgNVBAgTB0FyaXpvbmExEzARBgNVBAcTClNjb3R0c2RhbGUxJTAjBgNVBAoT\n"
+ "HFN0YXJmaWVsZCBUZWNobm9sb2dpZXMsIEluYy4xMjAwBgNVBAMTKVN0YXJmaWVs\n"
+ "ZCBSb290IENlcnRpZmljYXRlIEF1dGhvcml0eSAtIEcyMB4XDTA5MDkwMTAwMDAw\n"
+ "MFoXDTM3MTIzMTIzNTk1OVowgY8xCzAJBgNVBAYTAlVTMRAwDgYDVQQIEwdBcml6\n"
+ "b25hMRMwEQYDVQQHEwpTY290dHNkYWxlMSUwIwYDVQQKExxTdGFyZmllbGQgVGVj\n"
+ "aG5vbG9naWVzLCBJbmMuMTIwMAYDVQQDEylTdGFyZmllbGQgUm9vdCBDZXJ0aWZp\n"
+ "Y2F0ZSBBdXRob3JpdHkgLSBHMjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoC\n"
+ "ggEBAL3twQP89o/8ArFvW59I2Z154qK3A2FWGMNHttfKPTUuiUP3oWmb3ooa/RMg\n"
+ "nLRJdzIpVv257IzdIvpy3Cdhl+72WoTsbhm5iSzchFvVdPtrX8WJpRBSiUZV9Lh1\n"
+ "HOZ/5FSuS/hVclcCGfgXcVnrHigHdMWdSL5stPSksPNkN3mSwOxGXn/hbVNMYq/N\n"
+ "Hwtjuzqd+/x5AJhhdM8mgkBj87JyahkNmcrUDnXMN/uLicFZ8WJ/X7NfZTD4p7dN\n"
+ "dloedl40wOiWVpmKs/B/pM293DIxfJHP4F8R+GuqSVzRmZTRouNjWwl2tVZi4Ut0\n"
+ "HZbUJtQIBFnQmA4O5t78w+wfkPECAwEAAaNCMEAwDwYDVR0TAQH/BAUwAwEB/zAO\n"
+ "BgNVHQ8BAf8EBAMCAQYwHQYDVR0OBBYEFHwMMh+n2TB/xH1oo2Kooc6rB1snMA0G\n"
+ "CSqGSIb3DQEBCwUAA4IBAQARWfolTwNvlJk7mh+ChTnUdgWUXuEok21iXQnCoKjU\n"
+ "sHU48TRqneSfioYmUeYs0cYtbpUgSpIB7LiKZ3sx4mcujJUDJi5DnUox9g61DLu3\n"
+ "4jd/IroAow57UvtruzvE03lRTs2Q9GcHGcg8RnoNAX3FWOdt5oUwF5okxBDgBPfg\n"
+ "8n/Uqgr/Qh037ZTlZFkSIHc40zI+OIF1lnP6aI+xy84fxez6nH7PfrHxBy22/L/K\n"
+ "pL/QlwVKvOoYKAKQvVR4CSFx09F9HdkWsKlhPdAKACL8x3vLCWRFCztAgfd9fDL1\n"
+ "mMpYjn0q7pBZc2T5NnReJaH1ZgUufzkVqSr7UIuOhWn0\n"
+ "-----END CERTIFICATE-----\n\n"
+ // Original (G1) cert:
+ "-----BEGIN CERTIFICATE-----\n"
+ "MIIEDzCCAvegAwIBAgIBADANBgkqhkiG9w0BAQUFADBoMQswCQYDVQQGEwJVUzEl\n"
+ "MCMGA1UEChMcU3RhcmZpZWxkIFRlY2hub2xvZ2llcywgSW5jLjEyMDAGA1UECxMp\n"
+ "U3RhcmZpZWxkIENsYXNzIDIgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkwHhcNMDQw\n"
+ "NjI5MTczOTE2WhcNMzQwNjI5MTczOTE2WjBoMQswCQYDVQQGEwJVUzElMCMGA1UE\n"
+ "ChMcU3RhcmZpZWxkIFRlY2hub2xvZ2llcywgSW5jLjEyMDAGA1UECxMpU3RhcmZp\n"
+ "ZWxkIENsYXNzIDIgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkwggEgMA0GCSqGSIb3\n"
+ "DQEBAQUAA4IBDQAwggEIAoIBAQC3Msj+6XGmBIWtDBFk385N78gDGIc/oav7PKaf\n"
+ "8MOh2tTYbitTkPskpD6E8J7oX+zlJ0T1KKY/e97gKvDIr1MvnsoFAZMej2YcOadN\n"
+ "+lq2cwQlZut3f+dZxkqZJRRU6ybH838Z1TBwj6+wRir/resp7defqgSHo9T5iaU0\n"
+ "X9tDkYI22WY8sbi5gv2cOj4QyDvvBmVmepsZGD3/cVE8MC5fvj13c7JdBmzDI1aa\n"
+ "K4UmkhynArPkPw2vCHmCuDY96pzTNbO8acr1zJ3o/WSNF4Azbl5KXZnJHoe0nRrA\n"
+ "1W4TNSNe35tfPe/W93bC6j67eA0cQmdrBNj41tpvi/JEoAGrAgEDo4HFMIHCMB0G\n"
+ "A1UdDgQWBBS/X7fRzt0fhvRbVazc1xDCDqmI5zCBkgYDVR0jBIGKMIGHgBS/X7fR\n"
+ "zt0fhvRbVazc1xDCDqmI56FspGowaDELMAkGA1UEBhMCVVMxJTAjBgNVBAoTHFN0\n"
+ "YXJmaWVsZCBUZWNobm9sb2dpZXMsIEluYy4xMjAwBgNVBAsTKVN0YXJmaWVsZCBD\n"
+ "bGFzcyAyIENlcnRpZmljYXRpb24gQXV0aG9yaXR5ggEAMAwGA1UdEwQFMAMBAf8w\n"
+ "DQYJKoZIhvcNAQEFBQADggEBAAWdP4id0ckaVaGsafPzWdqbAYcaT1epoXkJKtv3\n"
+ "L7IezMdeatiDh6GX70k1PncGQVhiv45YuApnP+yz3SFmH8lU+nLMPUxA2IGvd56D\n"
+ "eruix/U0F47ZEUD0/CwqTRV/p2JdLiXTAAsgGh1o+Re49L2L7ShZ3U0WixeDyLJl\n"
+ "xy16paq8U4Zt3VekyvggQQto8PT7dL5WXXp59fkdheMtlb71cZBDzI0fmgAKhynp\n"
+ "VSJYACPq4xJDKVtHCN2MQWplBqjlIapBtJUhlbl90TSrE9atvNziPTnNvT51cKEY\n"
+ "WQPJIrSPnNVeKtelttQKbfi3QBFGmh95DmK/D5fs4C8fF5Q=\n"
+ "-----END CERTIFICATE-----\n"
+ );
+
+ return Cert;
+}
+
+
+
+
+
+////////////////////////////////////////////////////////////////////////////////
+// cMojangAPI:
+
+cMojangAPI::cMojangAPI(void) :
+ m_NameToUUIDServer(DEFAULT_NAME_TO_UUID_SERVER),
+ m_NameToUUIDAddress(DEFAULT_NAME_TO_UUID_ADDRESS)
+{
+}
+
+
+
+
+
+cMojangAPI::~cMojangAPI()
+{
+ SaveCachesToDisk();
+}
+
+
+
+
+
+void cMojangAPI::Start(cIniFile & a_SettingsIni)
+{
+ m_NameToUUIDServer = a_SettingsIni.GetValueSet("MojangAPI", "NameToUUIDServer", DEFAULT_NAME_TO_UUID_SERVER);
+ m_NameToUUIDAddress = a_SettingsIni.GetValueSet("MojangAPI", "NameToUUIDAddress", DEFAULT_NAME_TO_UUID_ADDRESS);
+ LoadCachesFromDisk();
+}
+
+
+
+
+
+AStringVector cMojangAPI::GetUUIDsFromPlayerNames(const AStringVector & a_PlayerNames, bool a_UseOnlyCached)
+{
+ // Convert all playernames to lowercase:
+ AStringVector PlayerNames;
+ for (AStringVector::const_iterator itr = a_PlayerNames.begin(), end = a_PlayerNames.end(); itr != end; ++itr)
+ {
+ AString Lower(*itr);
+ PlayerNames.push_back(StrToLower(Lower));
+ } // for itr - a_PlayerNames[]
+
+ // Request the cache to populate any names not yet contained:
+ if (!a_UseOnlyCached)
+ {
+ CacheNamesToUUIDs(PlayerNames);
+ }
+
+ // Retrieve from cache:
+ size_t idx = 0;
+ AStringVector res;
+ res.resize(PlayerNames.size());
+ cCSLock Lock(m_CSNameToUUID);
+ for (AStringVector::const_iterator itr = PlayerNames.begin(), end = PlayerNames.end(); itr != end; ++itr, ++idx)
+ {
+ cNameToUUIDMap::const_iterator itrN = m_NameToUUID.find(*itr);
+ if (itrN != m_NameToUUID.end())
+ {
+ res[idx] = itrN->second.m_UUID;
+ }
+ } // for itr - PlayerNames[]
+ return res;
+}
+
+
+
+
+
+void cMojangAPI::AddPlayerNameToUUIDMapping(const AString & a_PlayerName, const AString & a_UUID)
+{
+ AString lcName(a_PlayerName);
+ AString UUID = MakeUUIDShort(a_UUID);
+ Int64 Now = time(NULL);
+ cCSLock Lock(m_CSNameToUUID);
+ m_NameToUUID[StrToLower(lcName)] = sUUIDRecord(a_PlayerName, UUID, Now);
+}
+
+
+
+
+
+bool cMojangAPI::SecureRequest(const AString & a_ServerName, const AString & a_Request, AString & a_Response)
+{
+ // Connect the socket:
+ cBlockingSslClientSocket Socket;
+ Socket.SetTrustedRootCertsFromString(StarfieldCACert(), a_ServerName);
+ if (!Socket.Connect(a_ServerName, 443))
+ {
+ LOGWARNING("%s: Can't connect to %s: %s", __FUNCTION__, a_ServerName.c_str(), Socket.GetLastErrorText().c_str());
+ return false;
+ }
+
+ if (!Socket.Send(a_Request.c_str(), a_Request.size()))
+ {
+ LOGWARNING("%s: Writing SSL data failed: %s", __FUNCTION__, Socket.GetLastErrorText().c_str());
+ return false;
+ }
+
+ // Read the HTTP response:
+ int ret;
+ unsigned char buf[1024];
+
+ for (;;)
+ {
+ ret = Socket.Receive(buf, sizeof(buf));
+
+ if ((ret == POLARSSL_ERR_NET_WANT_READ) || (ret == POLARSSL_ERR_NET_WANT_WRITE))
+ {
+ // This value should never be returned, it is handled internally by cBlockingSslClientSocket
+ LOGWARNING("%s: SSL reading failed internally", __FUNCTION__);
+ return false;
+ }
+ if (ret == POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY)
+ {
+ break;
+ }
+ if (ret < 0)
+ {
+ LOGWARNING("%s: SSL reading failed: -0x%x", __FUNCTION__, -ret);
+ return false;
+ }
+ if (ret == 0)
+ {
+ break;
+ }
+
+ a_Response.append((const char *)buf, (size_t)ret);
+ }
+
+ Socket.Disconnect();
+ return true;
+}
+
+
+
+
+
+AString cMojangAPI::MakeUUIDShort(const AString & a_UUID)
+{
+ // Note: we only check the string's length, not the actual content
+ switch (a_UUID.size())
+ {
+ case 32:
+ {
+ // Already is a short UUID
+ return a_UUID;
+ }
+
+ case 36:
+ {
+ // Remove the dashes from the string:
+ AString res;
+ res.reserve(32);
+ res.append(a_UUID, 0, 8);
+ res.append(a_UUID, 9, 4);
+ res.append(a_UUID, 14, 4);
+ res.append(a_UUID, 19, 4);
+ res.append(a_UUID, 24, 12);
+ return res;
+ }
+ }
+ LOGWARNING("%s: Not an UUID: \"%s\".", __FUNCTION__, a_UUID.c_str());
+ return "";
+}
+
+
+
+
+
+AString cMojangAPI::MakeUUIDDashed(const AString & a_UUID)
+{
+ // Note: we only check the string's length, not the actual content
+ switch (a_UUID.size())
+ {
+ case 36:
+ {
+ // Already is a dashed UUID
+ return a_UUID;
+ }
+
+ case 32:
+ {
+ // Insert dashes at the proper positions:
+ AString res;
+ res.reserve(36);
+ res.append(a_UUID, 0, 8);
+ res.push_back('-');
+ res.append(a_UUID, 8, 4);
+ res.push_back('-');
+ res.append(a_UUID, 12, 4);
+ res.push_back('-');
+ res.append(a_UUID, 16, 4);
+ res.push_back('-');
+ res.append(a_UUID, 20, 12);
+ return res;
+ }
+ }
+ LOGWARNING("%s: Not an UUID: \"%s\".", __FUNCTION__, a_UUID.c_str());
+ return "";
+}
+
+
+
+
+
+void cMojangAPI::LoadCachesFromDisk(void)
+{
+ try
+ {
+ // Open up the SQLite DB:
+ SQLite::Database db("MojangAPI.sqlite", SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE);
+ db.exec("CREATE TABLE IF NOT EXISTS PlayerNameToUUID (PlayerName, UUID, DateTime)");
+
+ // Clean up old entries:
+ {
+ SQLite::Statement stmt(db, "DELETE FROM PlayerNameToUUID WHERE DateTime < ?");
+ Int64 LimitDateTime = time(NULL) - MAX_AGE;
+ stmt.bind(1, LimitDateTime);
+ stmt.exec();
+ }
+
+ // Retrieve all remaining entries::
+ SQLite::Statement stmt(db, "SELECT PlayerName, UUID, DateTime FROM PlayerNameToUUID");
+ while (stmt.executeStep())
+ {
+ AString PlayerName = stmt.getColumn(0);
+ AString UUID = stmt.getColumn(1);
+ Int64 DateTime = stmt.getColumn(2);
+ AString lcPlayerName = PlayerName;
+ m_NameToUUID[StrToLower(lcPlayerName)] = sUUIDRecord(PlayerName, UUID, DateTime);
+ }
+ }
+ catch (const SQLite::Exception & ex)
+ {
+ LOGINFO("Loading MojangAPI cache failed: %s", ex.what());
+ }
+}
+
+
+
+
+
+void cMojangAPI::SaveCachesToDisk(void)
+{
+ try
+ {
+ // Open up the SQLite DB:
+ SQLite::Database db("MojangAPI.sqlite", SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE);
+ db.exec("CREATE TABLE IF NOT EXISTS PlayerNameToUUID (PlayerName, UUID, DateTime)");
+
+ // Remove all entries:
+ db.exec("DELETE FROM PlayerNameToUUID");
+
+ // Save all cache entries:
+ SQLite::Statement stmt(db, "INSERT INTO PlayerNameToUUID(PlayerName, UUID, DateTime) VALUES (?, ?, ?)");
+ Int64 LimitDateTime = time(NULL) - MAX_AGE;
+ cCSLock Lock(m_CSNameToUUID);
+ for (cNameToUUIDMap::const_iterator itr = m_NameToUUID.begin(), end = m_NameToUUID.end(); itr != end; ++itr)
+ {
+ if (itr->second.m_DateTime < LimitDateTime)
+ {
+ // This item is too old, do not save
+ continue;
+ }
+ stmt.bind(1, itr->second.m_PlayerName);
+ stmt.bind(2, itr->second.m_UUID);
+ stmt.bind(3, itr->second.m_DateTime);
+ stmt.exec();
+ stmt.reset();
+ }
+ }
+ catch (const SQLite::Exception & ex)
+ {
+ LOGINFO("Saving MojangAPI cache failed: %s", ex.what());
+ }
+}
+
+
+
+
+
+void cMojangAPI::CacheNamesToUUIDs(const AStringVector & a_PlayerNames)
+{
+ // Create a list of names to query, by removing those that are already cached:
+ AStringVector NamesToQuery;
+ NamesToQuery.reserve(a_PlayerNames.size());
+ {
+ cCSLock Lock(m_CSNameToUUID);
+ for (AStringVector::const_iterator itr = a_PlayerNames.begin(), end = a_PlayerNames.end(); itr != end; ++itr)
+ {
+ if (m_NameToUUID.find(*itr) == m_NameToUUID.end())
+ {
+ NamesToQuery.push_back(*itr);
+ }
+ } // for itr - a_PlayerNames[]
+ } // Lock(m_CSNameToUUID)
+
+ while (!NamesToQuery.empty())
+ {
+ // Create the request body - a JSON containing up to MAX_PER_QUERY playernames:
+ Json::Value root;
+ int Count = 0;
+ AStringVector::iterator itr = NamesToQuery.begin(), end = NamesToQuery.end();
+ for (; (itr != end) && (Count < MAX_PER_QUERY); ++itr, ++Count)
+ {
+ Json::Value req(*itr);
+ root.append(req);
+ } // for itr - a_PlayerNames[]
+ NamesToQuery.erase(NamesToQuery.begin(), itr);
+ Json::FastWriter Writer;
+ AString RequestBody = Writer.write(root);
+
+ // Create the HTTP request:
+ AString Request;
+ Request += "POST " + m_NameToUUIDAddress + " HTTP/1.0\r\n"; // We need to use HTTP 1.0 because we don't handle Chunked transfer encoding
+ Request += "Host: " + m_NameToUUIDServer + "\r\n";
+ Request += "User-Agent: MCServer\r\n";
+ Request += "Connection: close\r\n";
+ Request += "Content-Type: application/json\r\n";
+ Request += Printf("Content-Length: %u\r\n", (unsigned)RequestBody.length());
+ Request += "\r\n";
+ Request += RequestBody;
+
+ // Get the response from the server:
+ AString Response;
+ if (!SecureRequest(m_NameToUUIDServer, Request, Response))
+ {
+ continue;
+ }
+
+ // Check the HTTP status line:
+ const AString Prefix("HTTP/1.1 200 OK");
+ AString HexDump;
+ if (Response.compare(0, Prefix.size(), Prefix))
+ {
+ LOGINFO("%s failed: bad HTTP status line received", __FUNCTION__);
+ LOGD("Response: \n%s", CreateHexDump(HexDump, Response.data(), Response.size(), 16).c_str());
+ continue;
+ }
+
+ // Erase the HTTP headers from the response:
+ size_t idxHeadersEnd = Response.find("\r\n\r\n");
+ if (idxHeadersEnd == AString::npos)
+ {
+ LOGINFO("%s failed: bad HTTP response header received", __FUNCTION__);
+ LOGD("Response: \n%s", CreateHexDump(HexDump, Response.data(), Response.size(), 16).c_str());
+ continue;
+ }
+ Response.erase(0, idxHeadersEnd + 4);
+
+ // Parse the returned string into Json:
+ Json::Reader reader;
+ if (!reader.parse(Response, root, false) || !root.isArray())
+ {
+ LOGWARNING("%s failed: Cannot parse received data (NameToUUID) to JSON!", __FUNCTION__);
+ LOGD("Response body:\n%s", CreateHexDump(HexDump, Response.data(), Response.size(), 16).c_str());
+ continue;
+ }
+
+ // Store the returned results into cache:
+ size_t JsonCount = root.size();
+ Int64 Now = time(NULL);
+ cCSLock Lock(m_CSNameToUUID);
+ for (size_t idx = 0; idx < JsonCount; ++idx)
+ {
+ Json::Value & Val = root[idx];
+ AString JsonName = Val.get("name", "").asString();
+ AString JsonUUID = MakeUUIDShort(Val.get("id", "").asString());
+ if (JsonUUID.empty())
+ {
+ continue;
+ }
+ AString lcName = JsonName;
+ m_NameToUUID[StrToLower(lcName)] = sUUIDRecord(JsonName, JsonUUID, Now);
+ } // for idx - root[]
+ } // while (!NamesToQuery.empty())
+}
+
+
+
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 14:46:55 +0100