]> git.lizzy.rs Git - minetest.git/blobdiff - src/client.cpp
dofile error reporting for syntax errors
[minetest.git] / src / client.cpp
index ceea56ba0b4886c7d4a62a6bb68c351b14be94c4..de813187574ddba26ca117e42467d074e98f37dc 100644 (file)
@@ -22,10 +22,12 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include <sstream>
 #include <IFileSystem.h>
 #include "jthread/jmutexautolock.h"
+#include "util/auth.h"
 #include "util/directiontables.h"
 #include "util/pointedthing.h"
 #include "util/serialize.h"
 #include "util/string.h"
+#include "util/srp.h"
 #include "client.h"
 #include "network/clientopcodes.h"
 #include "filesys.h"
@@ -255,6 +257,8 @@ Client::Client(
        m_highlighted_pos(0,0,0),
        m_map_seed(0),
        m_password(password),
+       m_chosen_auth_mech(AUTH_MECHANISM_NONE),
+       m_auth_data(NULL),
        m_access_denied(false),
        m_itemdef_received(false),
        m_nodedef_received(false),
@@ -404,10 +408,13 @@ void Client::step(float dtime)
                        memset(pName, 0, PLAYERNAME_SIZE * sizeof(char));
                        memset(pPassword, 0, PASSWORD_SIZE * sizeof(char));
 
+                       std::string hashed_password = translatePassword(myplayer->getName(), m_password);
                        snprintf(pName, PLAYERNAME_SIZE, "%s", myplayer->getName());
-                       snprintf(pPassword, PASSWORD_SIZE, "%s", m_password.c_str());
+                       snprintf(pPassword, PASSWORD_SIZE, "%s", hashed_password.c_str());
 
                        sendLegacyInit(pName, pPassword);
+                       if (LATEST_PROTOCOL_VERSION >= 25)
+                               sendInit(myplayer->getName());
                }
 
                // Not connected, return
@@ -943,6 +950,39 @@ void Client::interact(u8 action, const PointedThing& pointed)
        Send(&pkt);
 }
 
+void Client::deleteAuthData()
+{
+       if (!m_auth_data)
+               return;
+
+       switch (m_chosen_auth_mech) {
+               case AUTH_MECHANISM_FIRST_SRP:
+                       break;
+               case AUTH_MECHANISM_SRP:
+               case AUTH_MECHANISM_LEGACY_PASSWORD:
+                       srp_user_delete((SRPUser *) m_auth_data);
+                       m_auth_data = NULL;
+                       break;
+               case AUTH_MECHANISM_NONE:
+                       break;
+       }
+}
+
+
+AuthMechanism Client::choseAuthMech(const u32 mechs)
+{
+       if (mechs & AUTH_MECHANISM_SRP)
+               return AUTH_MECHANISM_SRP;
+
+       if (mechs & AUTH_MECHANISM_FIRST_SRP)
+               return AUTH_MECHANISM_FIRST_SRP;
+
+       if (mechs & AUTH_MECHANISM_LEGACY_PASSWORD)
+               return AUTH_MECHANISM_LEGACY_PASSWORD;
+
+       return AUTH_MECHANISM_NONE;
+}
+
 void Client::sendLegacyInit(const char* playerName, const char* playerPassword)
 {
        NetworkPacket pkt(TOSERVER_INIT_LEGACY,
@@ -956,6 +996,71 @@ void Client::sendLegacyInit(const char* playerName, const char* playerPassword)
        Send(&pkt);
 }
 
+void Client::sendInit(const std::string &playerName)
+{
+       NetworkPacket pkt(TOSERVER_INIT, 1 + 2 + 2 + (1 + playerName.size()));
+
+       // we don't support network compression yet
+       u16 supp_comp_modes = NETPROTO_COMPRESSION_NONE;
+       pkt << (u8) SER_FMT_VER_HIGHEST_READ << (u16) supp_comp_modes;
+       pkt << (u16) CLIENT_PROTOCOL_VERSION_MIN << (u16) CLIENT_PROTOCOL_VERSION_MAX;
+       pkt << playerName;
+
+       Send(&pkt);
+}
+
+void Client::startAuth(AuthMechanism chosen_auth_mechanism)
+{
+       m_chosen_auth_mech = chosen_auth_mechanism;
+
+       switch (chosen_auth_mechanism) {
+               case AUTH_MECHANISM_FIRST_SRP: {
+                       // send srp verifier to server
+                       NetworkPacket resp_pkt(TOSERVER_FIRST_SRP, 0);
+                       char *salt, *bytes_v;
+                       std::size_t len_salt, len_v;
+                       salt = NULL;
+                       getSRPVerifier(getPlayerName(), m_password,
+                               &salt, &len_salt, &bytes_v, &len_v);
+                       resp_pkt
+                               << std::string((char*)salt, len_salt)
+                               << std::string((char*)bytes_v, len_v)
+                               << (u8)((m_password == "") ? 1 : 0);
+                       free(salt);
+                       free(bytes_v);
+                       Send(&resp_pkt);
+                       break;
+               }
+               case AUTH_MECHANISM_SRP:
+               case AUTH_MECHANISM_LEGACY_PASSWORD: {
+                       u8 based_on = 1;
+
+                       if (chosen_auth_mechanism == AUTH_MECHANISM_LEGACY_PASSWORD) {
+                               m_password = translatePassword(getPlayerName(), m_password);
+                               based_on = 0;
+                       }
+
+                       std::string playername_u = lowercase(getPlayerName());
+                       m_auth_data = srp_user_new(SRP_SHA256, SRP_NG_2048,
+                               getPlayerName().c_str(), playername_u.c_str(),
+                               (const unsigned char *) m_password.c_str(),
+                               m_password.length(), NULL, NULL);
+                       char *bytes_A = 0;
+                       size_t len_A = 0;
+                       srp_user_start_authentication((struct SRPUser *) m_auth_data,
+                               NULL, NULL, 0, (unsigned char **) &bytes_A, &len_A);
+
+                       NetworkPacket resp_pkt(TOSERVER_SRP_BYTES_A, 0);
+                       resp_pkt << std::string(bytes_A, len_A) << based_on;
+                       free(bytes_A);
+                       Send(&resp_pkt);
+                       break;
+               }
+               case AUTH_MECHANISM_NONE:
+                       break; // not handled in this method
+       }
+}
+
 void Client::sendDeletedBlocks(std::vector<v3s16> &blocks)
 {
        NetworkPacket pkt(TOSERVER_DELETEDBLOCKS, 1 + sizeof(v3s16) * blocks.size());
@@ -997,7 +1102,7 @@ void Client::sendRemovedSounds(std::vector<s32> &soundList)
 }
 
 void Client::sendNodemetaFields(v3s16 p, const std::string &formname,
-               const std::map<std::string, std::string> &fields)
+               const StringMap &fields)
 {
        size_t fields_size = fields.size();
 
@@ -1007,10 +1112,10 @@ void Client::sendNodemetaFields(v3s16 p, const std::string &formname,
 
        pkt << p << formname << (u16) (fields_size & 0xFFFF);
 
-       for(std::map<std::string, std::string>::const_iterator
-                       i = fields.begin(); i != fields.end(); i++) {
-               const std::string &name = i->first;
-               const std::string &value = i->second;
+       StringMap::const_iterator it;
+       for (it = fields.begin(); it != fields.end(); ++it) {
+               const std::string &name = it->first;
+               const std::string &value = it->second;
                pkt << name;
                pkt.putLongString(value);
        }
@@ -1019,7 +1124,7 @@ void Client::sendNodemetaFields(v3s16 p, const std::string &formname,
 }
 
 void Client::sendInventoryFields(const std::string &formname,
-               const std::map<std::string, std::string> &fields)
+               const StringMap &fields)
 {
        size_t fields_size = fields.size();
        FATAL_ERROR_IF(fields_size > 0xFFFF, "Unsupported number of inventory fields");
@@ -1027,10 +1132,10 @@ void Client::sendInventoryFields(const std::string &formname,
        NetworkPacket pkt(TOSERVER_INVENTORY_FIELDS, 0);
        pkt << formname << (u16) (fields_size & 0xFFFF);
 
-       for(std::map<std::string, std::string>::const_iterator
-                       i = fields.begin(); i != fields.end(); i++) {
-               const std::string &name  = i->first;
-               const std::string &value = i->second;
+       StringMap::const_iterator it;
+       for (it = fields.begin(); it != fields.end(); ++it) {
+               const std::string &name  = it->first;
+               const std::string &value = it->second;
                pkt << name;
                pkt.putLongString(value);
        }
@@ -1066,24 +1171,30 @@ void Client::sendChangePassword(const std::string &oldpassword,
         const std::string &newpassword)
 {
        Player *player = m_env.getLocalPlayer();
-       if(player == NULL)
+       if (player == NULL)
                return;
 
        std::string playername = player->getName();
-       std::string oldpwd = translatePassword(playername, oldpassword);
-       std::string newpwd = translatePassword(playername, newpassword);
+       if (m_proto_ver >= 25) {
+               // get into sudo mode and then send new password to server
+               m_password = oldpassword;
+               m_new_password = newpassword;
+               startAuth(choseAuthMech(m_sudo_auth_methods));
+       } else {
+               std::string oldpwd = translatePassword(playername, oldpassword);
+               std::string newpwd = translatePassword(playername, newpassword);
 
-       NetworkPacket pkt(TOSERVER_PASSWORD_LEGACY, 2 * PASSWORD_SIZE);
+               NetworkPacket pkt(TOSERVER_PASSWORD_LEGACY, 2 * PASSWORD_SIZE);
 
-       for(u8 i = 0; i < PASSWORD_SIZE; i++) {
-               pkt << (u8) (i < oldpwd.length() ? oldpwd[i] : 0);
-       }
+               for (u8 i = 0; i < PASSWORD_SIZE; i++) {
+                       pkt << (u8) (i < oldpwd.length() ? oldpwd[i] : 0);
+               }
 
-       for(u8 i = 0; i < PASSWORD_SIZE; i++) {
-               pkt << (u8) (i < newpwd.length() ? newpwd[i] : 0);
+               for (u8 i = 0; i < PASSWORD_SIZE; i++) {
+                       pkt << (u8) (i < newpwd.length() ? newpwd[i] : 0);
+               }
+               Send(&pkt);
        }
-
-       Send(&pkt);
 }
 
 
@@ -1630,6 +1741,9 @@ void Client::afterContentReceived(IrrlichtDevice *device)
        text = wgettext("Initializing nodes...");
        draw_load_screen(text, device, guienv, 0, 72);
        m_nodedef->updateAliases(m_itemdef);
+       std::string texture_path = g_settings->get("texture_path");
+       if (texture_path != "" && fs::IsDir(texture_path))
+               m_nodedef->applyTextureOverrides(texture_path + DIR_DELIM + "override.txt");
        m_nodedef->setNodeRegistrationStatus(true);
        m_nodedef->runNodeResolveCallbacks();
        delete[] text;
@@ -1804,14 +1918,13 @@ ParticleManager* Client::getParticleManager()
 
 scene::IAnimatedMesh* Client::getMesh(const std::string &filename)
 {
-       std::map<std::string, std::string>::const_iterator i =
-                       m_mesh_data.find(filename);
-       if(i == m_mesh_data.end()){
-               errorstream<<"Client::getMesh(): Mesh not found: \""<<filename<<"\""
-                               <<std::endl;
+       StringMap::const_iterator it = m_mesh_data.find(filename);
+       if (it == m_mesh_data.end()) {
+               errorstream << "Client::getMesh(): Mesh not found: \"" << filename
+                       << "\"" << std::endl;
                return NULL;
        }
-       const std::string &data    = i->second;
+       const std::string &data    = it->second;
        scene::ISceneManager *smgr = m_device->getSceneManager();
 
        // Create the mesh, remove it from cache and return it