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/*
Minetest
Copyright (C) 2010-2014 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "wieldmesh.h"
#include "settings.h"
#include "shader.h"
#include "inventory.h"
#include "client.h"
#include "itemdef.h"
#include "nodedef.h"
#include "mesh.h"
#include "content_mapblock.h"
#include "mapblock_mesh.h"
#include "client/meshgen/collector.h"
#include "client/tile.h"
#include "log.h"
#include "util/numeric.h"
#include <map>
#include <IMeshManipulator.h>
#define WIELD_SCALE_FACTOR 30.0
#define WIELD_SCALE_FACTOR_EXTRUDED 40.0
#define MIN_EXTRUSION_MESH_RESOLUTION 16
#define MAX_EXTRUSION_MESH_RESOLUTION 512
static scene::IMesh *createExtrusionMesh(int resolution_x, int resolution_y)
{
const f32 r = 0.5;
scene::IMeshBuffer *buf = new scene::SMeshBuffer();
video::SColor c(255,255,255,255);
v3f scale(1.0, 1.0, 0.1);
// Front and back
{
video::S3DVertex vertices[8] = {
// z-
video::S3DVertex(-r,+r,-r, 0,0,-1, c, 0,0),
video::S3DVertex(+r,+r,-r, 0,0,-1, c, 1,0),
video::S3DVertex(+r,-r,-r, 0,0,-1, c, 1,1),
video::S3DVertex(-r,-r,-r, 0,0,-1, c, 0,1),
// z+
video::S3DVertex(-r,+r,+r, 0,0,+1, c, 0,0),
video::S3DVertex(-r,-r,+r, 0,0,+1, c, 0,1),
video::S3DVertex(+r,-r,+r, 0,0,+1, c, 1,1),
video::S3DVertex(+r,+r,+r, 0,0,+1, c, 1,0),
};
u16 indices[12] = {0,1,2,2,3,0,4,5,6,6,7,4};
buf->append(vertices, 8, indices, 12);
}
f32 pixelsize_x = 1 / (f32) resolution_x;
f32 pixelsize_y = 1 / (f32) resolution_y;
for (int i = 0; i < resolution_x; ++i) {
f32 pixelpos_x = i * pixelsize_x - 0.5;
f32 x0 = pixelpos_x;
f32 x1 = pixelpos_x + pixelsize_x;
f32 tex0 = (i + 0.1) * pixelsize_x;
f32 tex1 = (i + 0.9) * pixelsize_x;
video::S3DVertex vertices[8] = {
// x-
video::S3DVertex(x0,-r,-r, -1,0,0, c, tex0,1),
video::S3DVertex(x0,-r,+r, -1,0,0, c, tex1,1),
video::S3DVertex(x0,+r,+r, -1,0,0, c, tex1,0),
video::S3DVertex(x0,+r,-r, -1,0,0, c, tex0,0),
// x+
video::S3DVertex(x1,-r,-r, +1,0,0, c, tex0,1),
video::S3DVertex(x1,+r,-r, +1,0,0, c, tex0,0),
video::S3DVertex(x1,+r,+r, +1,0,0, c, tex1,0),
video::S3DVertex(x1,-r,+r, +1,0,0, c, tex1,1),
};
u16 indices[12] = {0,1,2,2,3,0,4,5,6,6,7,4};
buf->append(vertices, 8, indices, 12);
}
for (int i = 0; i < resolution_y; ++i) {
f32 pixelpos_y = i * pixelsize_y - 0.5;
f32 y0 = -pixelpos_y - pixelsize_y;
f32 y1 = -pixelpos_y;
f32 tex0 = (i + 0.1) * pixelsize_y;
f32 tex1 = (i + 0.9) * pixelsize_y;
video::S3DVertex vertices[8] = {
// y-
video::S3DVertex(-r,y0,-r, 0,-1,0, c, 0,tex0),
video::S3DVertex(+r,y0,-r, 0,-1,0, c, 1,tex0),
video::S3DVertex(+r,y0,+r, 0,-1,0, c, 1,tex1),
video::S3DVertex(-r,y0,+r, 0,-1,0, c, 0,tex1),
// y+
video::S3DVertex(-r,y1,-r, 0,+1,0, c, 0,tex0),
video::S3DVertex(-r,y1,+r, 0,+1,0, c, 0,tex1),
video::S3DVertex(+r,y1,+r, 0,+1,0, c, 1,tex1),
video::S3DVertex(+r,y1,-r, 0,+1,0, c, 1,tex0),
};
u16 indices[12] = {0,1,2,2,3,0,4,5,6,6,7,4};
buf->append(vertices, 8, indices, 12);
}
// Create mesh object
scene::SMesh *mesh = new scene::SMesh();
mesh->addMeshBuffer(buf);
buf->drop();
scaleMesh(mesh, scale); // also recalculates bounding box
return mesh;
}
/*
Caches extrusion meshes so that only one of them per resolution
is needed. Also caches one cube (for convenience).
E.g. there is a single extrusion mesh that is used for all
16x16 px images, another for all 256x256 px images, and so on.
WARNING: Not thread safe. This should not be a problem since
rendering related classes (such as WieldMeshSceneNode) will be
used from the rendering thread only.
*/
class ExtrusionMeshCache: public IReferenceCounted
{
public:
// Constructor
ExtrusionMeshCache()
{
for (int resolution = MIN_EXTRUSION_MESH_RESOLUTION;
resolution <= MAX_EXTRUSION_MESH_RESOLUTION;
resolution *= 2) {
m_extrusion_meshes[resolution] =
createExtrusionMesh(resolution, resolution);
}
m_cube = createCubeMesh(v3f(1.0, 1.0, 1.0));
}
// Destructor
virtual ~ExtrusionMeshCache()
{
for (auto &extrusion_meshe : m_extrusion_meshes) {
extrusion_meshe.second->drop();
}
m_cube->drop();
}
// Get closest extrusion mesh for given image dimensions
// Caller must drop the returned pointer
scene::IMesh* create(core::dimension2d<u32> dim)
{
// handle non-power of two textures inefficiently without cache
if (!is_power_of_two(dim.Width) || !is_power_of_two(dim.Height)) {
return createExtrusionMesh(dim.Width, dim.Height);
}
int maxdim = MYMAX(dim.Width, dim.Height);
std::map<int, scene::IMesh*>::iterator
it = m_extrusion_meshes.lower_bound(maxdim);
if (it == m_extrusion_meshes.end()) {
// no viable resolution found; use largest one
it = m_extrusion_meshes.find(MAX_EXTRUSION_MESH_RESOLUTION);
sanity_check(it != m_extrusion_meshes.end());
}
scene::IMesh *mesh = it->second;
mesh->grab();
return mesh;
}
// Returns a 1x1x1 cube mesh with one meshbuffer (material) per face
// Caller must drop the returned pointer
scene::IMesh* createCube()
{
m_cube->grab();
return m_cube;
}
private:
std::map<int, scene::IMesh*> m_extrusion_meshes;
scene::IMesh *m_cube;
};
ExtrusionMeshCache *g_extrusion_mesh_cache = NULL;
WieldMeshSceneNode::WieldMeshSceneNode(scene::ISceneManager *mgr, s32 id, bool lighting):
scene::ISceneNode(mgr->getRootSceneNode(), mgr, id),
m_material_type(video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF),
m_lighting(lighting)
{
m_enable_shaders = g_settings->getBool("enable_shaders");
m_anisotropic_filter = g_settings->getBool("anisotropic_filter");
m_bilinear_filter = g_settings->getBool("bilinear_filter");
m_trilinear_filter = g_settings->getBool("trilinear_filter");
// If this is the first wield mesh scene node, create a cache
// for extrusion meshes (and a cube mesh), otherwise reuse it
if (!g_extrusion_mesh_cache)
g_extrusion_mesh_cache = new ExtrusionMeshCache();
else
g_extrusion_mesh_cache->grab();
// Disable bounding box culling for this scene node
// since we won't calculate the bounding box.
setAutomaticCulling(scene::EAC_OFF);
// Create the child scene node
scene::IMesh *dummymesh = g_extrusion_mesh_cache->createCube();
m_meshnode = SceneManager->addMeshSceneNode(dummymesh, this, -1);
m_meshnode->setReadOnlyMaterials(false);
m_meshnode->setVisible(false);
dummymesh->drop(); // m_meshnode grabbed it
}
WieldMeshSceneNode::~WieldMeshSceneNode()
{
sanity_check(g_extrusion_mesh_cache);
if (g_extrusion_mesh_cache->drop())
g_extrusion_mesh_cache = nullptr;
}
void WieldMeshSceneNode::setCube(const ContentFeatures &f,
v3f wield_scale)
{
scene::IMesh *cubemesh = g_extrusion_mesh_cache->createCube();
scene::SMesh *copy = cloneMesh(cubemesh);
cubemesh->drop();
postProcessNodeMesh(copy, f, false, true, &m_material_type, &m_colors, true);
changeToMesh(copy);
copy->drop();
m_meshnode->setScale(wield_scale * WIELD_SCALE_FACTOR);
}
void WieldMeshSceneNode::setExtruded(const std::string &imagename,
const std::string &overlay_name, v3f wield_scale, ITextureSource *tsrc,
u8 num_frames)
{
video::ITexture *texture = tsrc->getTexture(imagename);
if (!texture) {
changeToMesh(nullptr);
return;
}
video::ITexture *overlay_texture =
overlay_name.empty() ? NULL : tsrc->getTexture(overlay_name);
core::dimension2d<u32> dim = texture->getSize();
// Detect animation texture and pull off top frame instead of using entire thing
if (num_frames > 1) {
u32 frame_height = dim.Height / num_frames;
dim = core::dimension2d<u32>(dim.Width, frame_height);
}
scene::IMesh *original = g_extrusion_mesh_cache->create(dim);
scene::SMesh *mesh = cloneMesh(original);
original->drop();
//set texture
mesh->getMeshBuffer(0)->getMaterial().setTexture(0,
tsrc->getTexture(imagename));
if (overlay_texture) {
scene::IMeshBuffer *copy = cloneMeshBuffer(mesh->getMeshBuffer(0));
copy->getMaterial().setTexture(0, overlay_texture);
mesh->addMeshBuffer(copy);
copy->drop();
}
changeToMesh(mesh);
mesh->drop();
m_meshnode->setScale(wield_scale * WIELD_SCALE_FACTOR_EXTRUDED);
// Customize materials
for (u32 layer = 0; layer < m_meshnode->getMaterialCount(); layer++) {
video::SMaterial &material = m_meshnode->getMaterial(layer);
material.TextureLayer[0].TextureWrapU = video::ETC_CLAMP_TO_EDGE;
material.TextureLayer[0].TextureWrapV = video::ETC_CLAMP_TO_EDGE;
material.MaterialType = m_material_type;
material.MaterialTypeParam = 0.5f;
material.setFlag(video::EMF_BACK_FACE_CULLING, true);
// Enable bi/trilinear filtering only for high resolution textures
if (dim.Width > 32) {
material.setFlag(video::EMF_BILINEAR_FILTER, m_bilinear_filter);
material.setFlag(video::EMF_TRILINEAR_FILTER, m_trilinear_filter);
} else {
material.setFlag(video::EMF_BILINEAR_FILTER, false);
material.setFlag(video::EMF_TRILINEAR_FILTER, false);
}
material.setFlag(video::EMF_ANISOTROPIC_FILTER, m_anisotropic_filter);
// mipmaps cause "thin black line" artifacts
#if (IRRLICHT_VERSION_MAJOR >= 1 && IRRLICHT_VERSION_MINOR >= 8) || IRRLICHT_VERSION_MAJOR >= 2
material.setFlag(video::EMF_USE_MIP_MAPS, false);
#endif
if (m_enable_shaders) {
material.setTexture(2, tsrc->getShaderFlagsTexture(false));
}
}
}
scene::SMesh *createSpecialNodeMesh(Client *client, content_t id, std::vector<ItemPartColor> *colors)
{
MeshMakeData mesh_make_data(client, false, false);
MeshCollector collector;
mesh_make_data.setSmoothLighting(false);
MapblockMeshGenerator gen(&mesh_make_data, &collector);
gen.renderSingle(id);
colors->clear();
scene::SMesh *mesh = new scene::SMesh();
for (auto &prebuffers : collector.prebuffers)
for (PreMeshBuffer &p : prebuffers) {
if (p.layer.material_flags & MATERIAL_FLAG_ANIMATION) {
const FrameSpec &frame = (*p.layer.frames)[0];
p.layer.texture = frame.texture;
p.layer.normal_texture = frame.normal_texture;
}
for (video::S3DVertex &v : p.vertices)
v.Color.setAlpha(255);
scene::SMeshBuffer *buf = new scene::SMeshBuffer();
buf->Material.setTexture(0, p.layer.texture);
p.layer.applyMaterialOptions(buf->Material);
mesh->addMeshBuffer(buf);
buf->append(&p.vertices[0], p.vertices.size(),
&p.indices[0], p.indices.size());
buf->drop();
colors->push_back(
ItemPartColor(p.layer.has_color, p.layer.color));
}
return mesh;
}
void WieldMeshSceneNode::setItem(const ItemStack &item, Client *client, bool check_wield_image)
{
ITextureSource *tsrc = client->getTextureSource();
IItemDefManager *idef = client->getItemDefManager();
IShaderSource *shdrsrc = client->getShaderSource();
const NodeDefManager *ndef = client->getNodeDefManager();
const ItemDefinition &def = item.getDefinition(idef);
const ContentFeatures &f = ndef->get(def.name);
content_t id = ndef->getId(def.name);
scene::SMesh *mesh = nullptr;
if (m_enable_shaders) {
u32 shader_id = shdrsrc->getShader("wielded_shader", TILE_MATERIAL_BASIC, NDT_NORMAL);
m_material_type = shdrsrc->getShaderInfo(shader_id).material;
}
// Color-related
m_colors.clear();
m_base_color = idef->getItemstackColor(item, client);
// If wield_image needs to be checked and is defined, it overrides everything else
if (!def.wield_image.empty() && check_wield_image) {
setExtruded(def.wield_image, def.wield_overlay, def.wield_scale, tsrc,
1);
m_colors.emplace_back();
// overlay is white, if present
m_colors.emplace_back(true, video::SColor(0xFFFFFFFF));
return;
}
// Handle nodes
// See also CItemDefManager::createClientCached()
if (def.type == ITEM_NODE) {
if (f.mesh_ptr[0]) {
// e.g. mesh nodes and nodeboxes
mesh = cloneMesh(f.mesh_ptr[0]);
postProcessNodeMesh(mesh, f, m_enable_shaders, true,
&m_material_type, &m_colors);
changeToMesh(mesh);
mesh->drop();
// mesh is pre-scaled by BS * f->visual_scale
m_meshnode->setScale(
def.wield_scale * WIELD_SCALE_FACTOR
/ (BS * f.visual_scale));
} else {
switch (f.drawtype) {
case NDT_AIRLIKE: {
changeToMesh(nullptr);
break;
}
case NDT_PLANTLIKE: {
setExtruded(tsrc->getTextureName(f.tiles[0].layers[0].texture_id),
tsrc->getTextureName(f.tiles[0].layers[1].texture_id),
def.wield_scale, tsrc,
f.tiles[0].layers[0].animation_frame_count);
// Add color
const TileLayer &l0 = f.tiles[0].layers[0];
m_colors.emplace_back(l0.has_color, l0.color);
const TileLayer &l1 = f.tiles[0].layers[1];
m_colors.emplace_back(l1.has_color, l1.color);
break;
}
case NDT_PLANTLIKE_ROOTED: {
setExtruded(tsrc->getTextureName(f.special_tiles[0].layers[0].texture_id),
"", def.wield_scale, tsrc,
f.special_tiles[0].layers[0].animation_frame_count);
// Add color
const TileLayer &l0 = f.special_tiles[0].layers[0];
m_colors.emplace_back(l0.has_color, l0.color);
break;
}
case NDT_NORMAL:
case NDT_ALLFACES:
case NDT_LIQUID:
case NDT_FLOWINGLIQUID: {
setCube(f, def.wield_scale);
break;
}
default: {
mesh = createSpecialNodeMesh(client, id, &m_colors);
changeToMesh(mesh);
mesh->drop();
m_meshnode->setScale(
def.wield_scale * WIELD_SCALE_FACTOR
/ (BS * f.visual_scale));
}
}
}
u32 material_count = m_meshnode->getMaterialCount();
for (u32 i = 0; i < material_count; ++i) {
video::SMaterial &material = m_meshnode->getMaterial(i);
material.MaterialType = m_material_type;
material.MaterialTypeParam = 0.5f;
material.setFlag(video::EMF_BACK_FACE_CULLING, true);
material.setFlag(video::EMF_BILINEAR_FILTER, m_bilinear_filter);
material.setFlag(video::EMF_TRILINEAR_FILTER, m_trilinear_filter);
}
return;
}
else if (!def.inventory_image.empty()) {
setExtruded(def.inventory_image, def.inventory_overlay, def.wield_scale,
tsrc, 1);
m_colors.emplace_back();
// overlay is white, if present
m_colors.emplace_back(true, video::SColor(0xFFFFFFFF));
return;
}
// no wield mesh found
changeToMesh(nullptr);
}
void WieldMeshSceneNode::setColor(video::SColor c)
{
assert(!m_lighting);
scene::IMesh *mesh = m_meshnode->getMesh();
if (!mesh)
return;
u8 red = c.getRed();
u8 green = c.getGreen();
u8 blue = c.getBlue();
u32 mc = mesh->getMeshBufferCount();
for (u32 j = 0; j < mc; j++) {
video::SColor bc(m_base_color);
if ((m_colors.size() > j) && (m_colors[j].override_base))
bc = m_colors[j].color;
video::SColor buffercolor(255,
bc.getRed() * red / 255,
bc.getGreen() * green / 255,
bc.getBlue() * blue / 255);
scene::IMeshBuffer *buf = mesh->getMeshBuffer(j);
colorizeMeshBuffer(buf, &buffercolor);
}
}
void WieldMeshSceneNode::render()
{
// note: if this method is changed to actually do something,
// you probably should implement OnRegisterSceneNode as well
}
void WieldMeshSceneNode::changeToMesh(scene::IMesh *mesh)
{
if (!mesh) {
scene::IMesh *dummymesh = g_extrusion_mesh_cache->createCube();
m_meshnode->setVisible(false);
m_meshnode->setMesh(dummymesh);
dummymesh->drop(); // m_meshnode grabbed it
} else {
m_meshnode->setMesh(mesh);
}
m_meshnode->setMaterialFlag(video::EMF_LIGHTING, m_lighting);
// need to normalize normals when lighting is enabled (because of setScale())
m_meshnode->setMaterialFlag(video::EMF_NORMALIZE_NORMALS, m_lighting);
m_meshnode->setVisible(true);
}
void getItemMesh(Client *client, const ItemStack &item, ItemMesh *result)
{
ITextureSource *tsrc = client->getTextureSource();
IItemDefManager *idef = client->getItemDefManager();
const NodeDefManager *ndef = client->getNodeDefManager();
const ItemDefinition &def = item.getDefinition(idef);
const ContentFeatures &f = ndef->get(def.name);
content_t id = ndef->getId(def.name);
FATAL_ERROR_IF(!g_extrusion_mesh_cache, "Extrusion mesh cache is not yet initialized");
scene::SMesh *mesh = nullptr;
// Shading is on by default
result->needs_shading = true;
// If inventory_image is defined, it overrides everything else
if (!def.inventory_image.empty()) {
mesh = getExtrudedMesh(tsrc, def.inventory_image,
def.inventory_overlay);
result->buffer_colors.emplace_back();
// overlay is white, if present
result->buffer_colors.emplace_back(true, video::SColor(0xFFFFFFFF));
// Items with inventory images do not need shading
result->needs_shading = false;
} else if (def.type == ITEM_NODE) {
if (f.mesh_ptr[0]) {
mesh = cloneMesh(f.mesh_ptr[0]);
scaleMesh(mesh, v3f(0.12, 0.12, 0.12));
postProcessNodeMesh(mesh, f, false, false, nullptr,
&result->buffer_colors);
} else {
switch (f.drawtype) {
case NDT_PLANTLIKE: {
mesh = getExtrudedMesh(tsrc,
tsrc->getTextureName(f.tiles[0].layers[0].texture_id),
tsrc->getTextureName(f.tiles[0].layers[1].texture_id));
// Add color
const TileLayer &l0 = f.tiles[0].layers[0];
result->buffer_colors.emplace_back(l0.has_color, l0.color);
const TileLayer &l1 = f.tiles[0].layers[1];
result->buffer_colors.emplace_back(l1.has_color, l1.color);
break;
}
case NDT_PLANTLIKE_ROOTED: {
mesh = getExtrudedMesh(tsrc,
tsrc->getTextureName(f.special_tiles[0].layers[0].texture_id), "");
// Add color
const TileLayer &l0 = f.special_tiles[0].layers[0];
result->buffer_colors.emplace_back(l0.has_color, l0.color);
break;
}
case NDT_NORMAL:
case NDT_ALLFACES:
case NDT_LIQUID:
case NDT_FLOWINGLIQUID: {
scene::IMesh *cube = g_extrusion_mesh_cache->createCube();
mesh = cloneMesh(cube);
cube->drop();
scaleMesh(mesh, v3f(1.2, 1.2, 1.2));
// add overlays
postProcessNodeMesh(mesh, f, false, false, nullptr,
&result->buffer_colors);
break;
}
default: {
mesh = createSpecialNodeMesh(client, id, &result->buffer_colors);
scaleMesh(mesh, v3f(0.12, 0.12, 0.12));
}
}
}
u32 mc = mesh->getMeshBufferCount();
for (u32 i = 0; i < mc; ++i) {
scene::IMeshBuffer *buf = mesh->getMeshBuffer(i);
video::SMaterial &material = buf->getMaterial();
material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
material.MaterialTypeParam = 0.5f;
material.setFlag(video::EMF_BILINEAR_FILTER, false);
material.setFlag(video::EMF_TRILINEAR_FILTER, false);
material.setFlag(video::EMF_BACK_FACE_CULLING, true);
material.setFlag(video::EMF_LIGHTING, false);
}
rotateMeshXZby(mesh, -45);
rotateMeshYZby(mesh, -30);
}
result->mesh = mesh;
}
scene::SMesh *getExtrudedMesh(ITextureSource *tsrc,
const std::string &imagename, const std::string &overlay_name)
{
// check textures
video::ITexture *texture = tsrc->getTextureForMesh(imagename);
if (!texture) {
return NULL;
}
video::ITexture *overlay_texture =
(overlay_name.empty()) ? NULL : tsrc->getTexture(overlay_name);
// get mesh
core::dimension2d<u32> dim = texture->getSize();
scene::IMesh *original = g_extrusion_mesh_cache->create(dim);
scene::SMesh *mesh = cloneMesh(original);
original->drop();
//set texture
mesh->getMeshBuffer(0)->getMaterial().setTexture(0,
tsrc->getTexture(imagename));
if (overlay_texture) {
scene::IMeshBuffer *copy = cloneMeshBuffer(mesh->getMeshBuffer(0));
copy->getMaterial().setTexture(0, overlay_texture);
mesh->addMeshBuffer(copy);
copy->drop();
}
// Customize materials
for (u32 layer = 0; layer < mesh->getMeshBufferCount(); layer++) {
video::SMaterial &material = mesh->getMeshBuffer(layer)->getMaterial();
material.TextureLayer[0].TextureWrapU = video::ETC_CLAMP_TO_EDGE;
material.TextureLayer[0].TextureWrapV = video::ETC_CLAMP_TO_EDGE;
material.setFlag(video::EMF_BILINEAR_FILTER, false);
material.setFlag(video::EMF_TRILINEAR_FILTER, false);
material.setFlag(video::EMF_BACK_FACE_CULLING, true);
material.setFlag(video::EMF_LIGHTING, false);
material.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
material.MaterialTypeParam = 0.5f;
}
scaleMesh(mesh, v3f(2.0, 2.0, 2.0));
return mesh;
}
void postProcessNodeMesh(scene::SMesh *mesh, const ContentFeatures &f,
bool use_shaders, bool set_material, const video::E_MATERIAL_TYPE *mattype,
std::vector<ItemPartColor> *colors, bool apply_scale)
{
u32 mc = mesh->getMeshBufferCount();
// Allocate colors for existing buffers
colors->clear();
for (u32 i = 0; i < mc; ++i)
colors->push_back(ItemPartColor());
for (u32 i = 0; i < mc; ++i) {
const TileSpec *tile = &(f.tiles[i]);
scene::IMeshBuffer *buf = mesh->getMeshBuffer(i);
for (int layernum = 0; layernum < MAX_TILE_LAYERS; layernum++) {
const TileLayer *layer = &tile->layers[layernum];
if (layer->texture_id == 0)
continue;
if (layernum != 0) {
scene::IMeshBuffer *copy = cloneMeshBuffer(buf);
copy->getMaterial() = buf->getMaterial();
mesh->addMeshBuffer(copy);
copy->drop();
buf = copy;
colors->push_back(
ItemPartColor(layer->has_color, layer->color));
} else {
(*colors)[i] = ItemPartColor(layer->has_color, layer->color);
}
video::SMaterial &material = buf->getMaterial();
if (set_material)
layer->applyMaterialOptions(material);
if (mattype) {
material.MaterialType = *mattype;
}
if (layer->animation_frame_count > 1) {
const FrameSpec &animation_frame = (*layer->frames)[0];
material.setTexture(0, animation_frame.texture);
} else {
material.setTexture(0, layer->texture);
}
if (use_shaders) {
if (layer->normal_texture) {
if (layer->animation_frame_count > 1) {
const FrameSpec &animation_frame = (*layer->frames)[0];
material.setTexture(1, animation_frame.normal_texture);
} else
material.setTexture(1, layer->normal_texture);
}
material.setTexture(2, layer->flags_texture);
}
if (apply_scale && tile->world_aligned) {
u32 n = buf->getVertexCount();
for (u32 k = 0; k != n; ++k)
buf->getTCoords(k) /= layer->scale;
}
}
}
}
">) {
actionstream << "Server: Player with the name \"singleplayer\" "
<< "tried to connect from " << addr_s << std::endl;
DenyAccess_Legacy(pkt->getPeerId(), L"Name is not allowed");
return;
}
{
std::string reason;
if (m_script->on_prejoinplayer(playername, addr_s, &reason)) {
actionstream << "Server: Player with the name \"" << playername << "\" "
<< "tried to connect from " << addr_s << " "
<< "but it was disallowed for the following reason: "
<< reason << std::endl;
DenyAccess_Legacy(pkt->getPeerId(), utf8_to_wide(reason.c_str()));
return;
}
}
infostream<<"Server: New connection: \""<<playername<<"\" from "
<<addr_s<<" (peer_id="<<pkt->getPeerId()<<")"<<std::endl;
// Get password
char given_password[PASSWORD_SIZE];
if (pkt->getSize() < 1 + PLAYERNAME_SIZE + PASSWORD_SIZE) {
// old version - assume blank password
given_password[0] = 0;
}
else {
for (u16 i = 0; i < PASSWORD_SIZE - 1; i++) {
given_password[i] = pkt->getChar(21 + i);
}
given_password[PASSWORD_SIZE - 1] = 0;
}
if (!base64_is_valid(given_password)) {
actionstream << "Server: " << playername
<< " supplied invalid password hash" << std::endl;
DenyAccess_Legacy(pkt->getPeerId(), L"Invalid password hash");
return;
}
// Enforce user limit.
// Don't enforce for users that have some admin right
if (m_clients.getClientIDs(CS_Created).size() >= g_settings->getU16("max_users") &&
!checkPriv(playername, "server") &&
!checkPriv(playername, "ban") &&
!checkPriv(playername, "privs") &&
!checkPriv(playername, "password") &&
playername != g_settings->get("name")) {
actionstream << "Server: " << playername << " tried to join, but there"
<< " are already max_users="
<< g_settings->getU16("max_users") << " players." << std::endl;
DenyAccess_Legacy(pkt->getPeerId(), L"Too many users.");
return;
}
std::string checkpwd; // Password hash to check against
bool has_auth = m_script->getAuth(playername, &checkpwd, NULL);
// If no authentication info exists for user, create it
if (!has_auth) {
if (!isSingleplayer() &&
g_settings->getBool("disallow_empty_password") &&
std::string(given_password) == "") {
actionstream << "Server: " << playername
<< " supplied empty password" << std::endl;
DenyAccess_Legacy(pkt->getPeerId(), L"Empty passwords are "
L"disallowed. Set a password and try again.");
return;
}
std::string raw_default_password =
g_settings->get("default_password");
std::string initial_password =
translatePassword(playername, raw_default_password);
// If default_password is empty, allow any initial password
if (raw_default_password.length() == 0)
initial_password = given_password;
m_script->createAuth(playername, initial_password);
}
has_auth = m_script->getAuth(playername, &checkpwd, NULL);
if (!has_auth) {
actionstream << "Server: " << playername << " cannot be authenticated"
<< " (auth handler does not work?)" << std::endl;
DenyAccess_Legacy(pkt->getPeerId(), L"Not allowed to login");
return;
}
if (given_password != checkpwd) {
actionstream << "Server: " << playername << " supplied wrong password"
<< std::endl;
DenyAccess_Legacy(pkt->getPeerId(), L"Wrong password");
return;
}
RemotePlayer *player =
static_cast<RemotePlayer*>(m_env->getPlayer(playername));
if (player && player->peer_id != 0) {
actionstream << "Server: " << playername << ": Failed to emerge player"
<< " (player allocated to an another client)" << std::endl;
DenyAccess_Legacy(pkt->getPeerId(), L"Another client is connected with this "
L"name. If your client closed unexpectedly, try again in "
L"a minute.");
}
m_clients.setPlayerName(pkt->getPeerId(), playername);
/*
Answer with a TOCLIENT_INIT
*/
NetworkPacket resp_pkt(TOCLIENT_INIT_LEGACY, 1 + 6 + 8 + 4,
pkt->getPeerId());
resp_pkt << (u8) deployed << (v3s16) floatToInt(v3f(0,0,0), BS)
<< (u64) m_env->getServerMap().getSeed()
<< g_settings->getFloat("dedicated_server_step");
Send(&resp_pkt);
m_clients.event(pkt->getPeerId(), CSE_InitLegacy);
}
void Server::handleCommand_Init2(NetworkPacket* pkt)
{
verbosestream << "Server: Got TOSERVER_INIT2 from "
<< pkt->getPeerId() << std::endl;
m_clients.event(pkt->getPeerId(), CSE_GotInit2);
u16 protocol_version = m_clients.getProtocolVersion(pkt->getPeerId());
///// begin compatibility code
PlayerSAO* playersao = NULL;
if (protocol_version <= 22) {
playersao = StageTwoClientInit(pkt->getPeerId());
if (playersao == NULL) {
actionstream
<< "TOSERVER_INIT2 stage 2 client init failed for peer "
<< pkt->getPeerId() << std::endl;
return;
}
}
///// end compatibility code
/*
Send some initialization data
*/
infostream << "Server: Sending content to "
<< getPlayerName(pkt->getPeerId()) << std::endl;
// Send player movement settings
SendMovement(pkt->getPeerId());
// Send item definitions
SendItemDef(pkt->getPeerId(), m_itemdef, protocol_version);
// Send node definitions
SendNodeDef(pkt->getPeerId(), m_nodedef, protocol_version);
m_clients.event(pkt->getPeerId(), CSE_SetDefinitionsSent);
// Send media announcement
sendMediaAnnouncement(pkt->getPeerId());
// Send detached inventories
sendDetachedInventories(pkt->getPeerId());
// Send time of day
u16 time = m_env->getTimeOfDay();
float time_speed = g_settings->getFloat("time_speed");
SendTimeOfDay(pkt->getPeerId(), time, time_speed);
///// begin compatibility code
if (protocol_version <= 22) {
m_clients.event(pkt->getPeerId(), CSE_SetClientReady);
m_script->on_joinplayer(playersao);
}
///// end compatibility code
// Warnings about protocol version can be issued here
if (getClient(pkt->getPeerId())->net_proto_version < LATEST_PROTOCOL_VERSION) {
SendChatMessage(pkt->getPeerId(), L"# Server: WARNING: YOUR CLIENT'S "
L"VERSION MAY NOT BE FULLY COMPATIBLE WITH THIS SERVER!");
}
}
void Server::handleCommand_RequestMedia(NetworkPacket* pkt)
{
std::vector<std::string> tosend;
u16 numfiles;
*pkt >> numfiles;
infostream << "Sending " << numfiles << " files to "
<< getPlayerName(pkt->getPeerId()) << std::endl;
verbosestream << "TOSERVER_REQUEST_MEDIA: " << std::endl;
for (u16 i = 0; i < numfiles; i++) {
std::string name;
*pkt >> name;
tosend.push_back(name);
verbosestream << "TOSERVER_REQUEST_MEDIA: requested file "
<< name << std::endl;
}
sendRequestedMedia(pkt->getPeerId(), tosend);
}
void Server::handleCommand_ReceivedMedia(NetworkPacket* pkt)
{
}
void Server::handleCommand_ClientReady(NetworkPacket* pkt)
{
u16 peer_id = pkt->getPeerId();
u16 peer_proto_ver = getClient(peer_id, CS_InitDone)->net_proto_version;
// clients <= protocol version 22 did not send ready message,
// they're already initialized
if (peer_proto_ver <= 22) {
infostream << "Client sent message not expected by a "
<< "client using protocol version <= 22,"
<< "disconnecting peer_id: " << peer_id << std::endl;
m_con.DisconnectPeer(peer_id);
return;
}
PlayerSAO* playersao = StageTwoClientInit(peer_id);
if (playersao == NULL) {
actionstream
<< "TOSERVER_CLIENT_READY stage 2 client init failed for peer_id: "
<< peer_id << std::endl;
m_con.DisconnectPeer(peer_id);
return;
}
if (pkt->getSize() < 8) {
errorstream
<< "TOSERVER_CLIENT_READY client sent inconsistent data, disconnecting peer_id: "
<< peer_id << std::endl;
m_con.DisconnectPeer(peer_id);
return;
}
u8 major_ver, minor_ver, patch_ver, reserved;
std::string full_ver;
*pkt >> major_ver >> minor_ver >> patch_ver >> reserved >> full_ver;
m_clients.setClientVersion(
peer_id, major_ver, minor_ver, patch_ver,
full_ver);
m_clients.event(peer_id, CSE_SetClientReady);
m_script->on_joinplayer(playersao);
}
void Server::handleCommand_GotBlocks(NetworkPacket* pkt)
{
if (pkt->getSize() < 1)
return;
/*
[0] u16 command
[2] u8 count
[3] v3s16 pos_0
[3+6] v3s16 pos_1
...
*/
u8 count;
*pkt >> count;
RemoteClient *client = getClient(pkt->getPeerId());
for (u16 i = 0; i < count; i++) {
if ((s16)pkt->getSize() < 1 + (i + 1) * 6)
throw con::InvalidIncomingDataException
("GOTBLOCKS length is too short");
v3s16 p;
*pkt >> p;
client->GotBlock(p);
}
}
void Server::handleCommand_PlayerPos(NetworkPacket* pkt)
{
if (pkt->getSize() < 12 + 12 + 4 + 4)
return;
v3s32 ps, ss;
s32 f32pitch, f32yaw;
*pkt >> ps;
*pkt >> ss;
*pkt >> f32pitch;
*pkt >> f32yaw;
f32 pitch = (f32)f32pitch / 100.0;
f32 yaw = (f32)f32yaw / 100.0;
u32 keyPressed = 0;
if (pkt->getSize() >= 12 + 12 + 4 + 4 + 4)
*pkt >> keyPressed;
v3f position((f32)ps.X / 100.0, (f32)ps.Y / 100.0, (f32)ps.Z / 100.0);
v3f speed((f32)ss.X / 100.0, (f32)ss.Y / 100.0, (f32)ss.Z / 100.0);
pitch = modulo360f(pitch);
yaw = modulo360f(yaw);
Player *player = m_env->getPlayer(pkt->getPeerId());
if (player == NULL) {
errorstream << "Server::ProcessData(): Canceling: "
"No player for peer_id=" << pkt->getPeerId()
<< " disconnecting peer!" << std::endl;
m_con.DisconnectPeer(pkt->getPeerId());
return;
}
// If player is dead we don't care of this packet
if (player->isDead()) {
verbosestream << "TOSERVER_PLAYERPOS: " << player->getName()
<< " is dead. Ignoring packet";
return;
}
PlayerSAO *playersao = player->getPlayerSAO();
if (playersao == NULL) {
errorstream << "Server::ProcessData(): Canceling: "
"No player object for peer_id=" << pkt->getPeerId()
<< " disconnecting peer!" << std::endl;
m_con.DisconnectPeer(pkt->getPeerId());
return;
}
player->setPosition(position);
player->setSpeed(speed);
player->setPitch(pitch);
player->setYaw(yaw);
player->keyPressed = keyPressed;
player->control.up = (keyPressed & 1);
player->control.down = (keyPressed & 2);
player->control.left = (keyPressed & 4);
player->control.right = (keyPressed & 8);
player->control.jump = (keyPressed & 16);
player->control.aux1 = (keyPressed & 32);
player->control.sneak = (keyPressed & 64);
player->control.LMB = (keyPressed & 128);
player->control.RMB = (keyPressed & 256);
if (playersao->checkMovementCheat()) {
// Call callbacks
m_script->on_cheat(playersao, "moved_too_fast");
SendMovePlayer(pkt->getPeerId());
}
}
void Server::handleCommand_DeletedBlocks(NetworkPacket* pkt)
{
if (pkt->getSize() < 1)
return;
/*
[0] u16 command
[2] u8 count
[3] v3s16 pos_0
[3+6] v3s16 pos_1
...
*/
u8 count;
*pkt >> count;
RemoteClient *client = getClient(pkt->getPeerId());
for (u16 i = 0; i < count; i++) {
if ((s16)pkt->getSize() < 1 + (i + 1) * 6)
throw con::InvalidIncomingDataException
("DELETEDBLOCKS length is too short");
v3s16 p;
*pkt >> p;
client->SetBlockNotSent(p);
}
}
void Server::handleCommand_InventoryAction(NetworkPacket* pkt)
{
Player *player = m_env->getPlayer(pkt->getPeerId());
if (player == NULL) {
errorstream << "Server::ProcessData(): Canceling: "
"No player for peer_id=" << pkt->getPeerId()
<< " disconnecting peer!" << std::endl;
m_con.DisconnectPeer(pkt->getPeerId());
return;
}
PlayerSAO *playersao = player->getPlayerSAO();
if (playersao == NULL) {
errorstream << "Server::ProcessData(): Canceling: "
"No player object for peer_id=" << pkt->getPeerId()
<< " disconnecting peer!" << std::endl;
m_con.DisconnectPeer(pkt->getPeerId());
return;
}
// Strip command and create a stream
std::string datastring(pkt->getString(0), pkt->getSize());
verbosestream << "TOSERVER_INVENTORY_ACTION: data=" << datastring
<< std::endl;
std::istringstream is(datastring, std::ios_base::binary);
// Create an action
InventoryAction *a = InventoryAction::deSerialize(is);
if (a == NULL) {
infostream << "TOSERVER_INVENTORY_ACTION: "
<< "InventoryAction::deSerialize() returned NULL"
<< std::endl;
return;
}
// If something goes wrong, this player is to blame
RollbackScopeActor rollback_scope(m_rollback,
std::string("player:")+player->getName());
/*
Note: Always set inventory not sent, to repair cases
where the client made a bad prediction.
*/
/*
Handle restrictions and special cases of the move action
*/
if (a->getType() == IACTION_MOVE) {
IMoveAction *ma = (IMoveAction*)a;
ma->from_inv.applyCurrentPlayer(player->getName());
ma->to_inv.applyCurrentPlayer(player->getName());
setInventoryModified(ma->from_inv, false);
setInventoryModified(ma->to_inv, false);
bool from_inv_is_current_player =
(ma->from_inv.type == InventoryLocation::PLAYER) &&
(ma->from_inv.name == player->getName());
bool to_inv_is_current_player =
(ma->to_inv.type == InventoryLocation::PLAYER) &&
(ma->to_inv.name == player->getName());
/*
Disable moving items out of craftpreview
*/
if (ma->from_list == "craftpreview") {
infostream << "Ignoring IMoveAction from "
<< (ma->from_inv.dump()) << ":" << ma->from_list
<< " to " << (ma->to_inv.dump()) << ":" << ma->to_list
<< " because src is " << ma->from_list << std::endl;
delete a;
return;
}
/*
Disable moving items into craftresult and craftpreview
*/
if (ma->to_list == "craftpreview" || ma->to_list == "craftresult") {
infostream << "Ignoring IMoveAction from "
<< (ma->from_inv.dump()) << ":" << ma->from_list
<< " to " << (ma->to_inv.dump()) << ":" << ma->to_list
<< " because dst is " << ma->to_list << std::endl;
delete a;
return;
}
// Disallow moving items in elsewhere than player's inventory
// if not allowed to interact
if (!checkPriv(player->getName(), "interact") &&
(!from_inv_is_current_player ||
!to_inv_is_current_player)) {
infostream << "Cannot move outside of player's inventory: "
<< "No interact privilege" << std::endl;
delete a;
return;
}
}
/*
Handle restrictions and special cases of the drop action
*/
else if (a->getType() == IACTION_DROP) {
IDropAction *da = (IDropAction*)a;
da->from_inv.applyCurrentPlayer(player->getName());
setInventoryModified(da->from_inv, false);
/*
Disable dropping items out of craftpreview
*/
if (da->from_list == "craftpreview") {
infostream << "Ignoring IDropAction from "
<< (da->from_inv.dump()) << ":" << da->from_list
<< " because src is " << da->from_list << std::endl;
delete a;
return;
}
// Disallow dropping items if not allowed to interact
if (!checkPriv(player->getName(), "interact")) {
delete a;
return;
}
}
/*
Handle restrictions and special cases of the craft action
*/
else if (a->getType() == IACTION_CRAFT) {
ICraftAction *ca = (ICraftAction*)a;
ca->craft_inv.applyCurrentPlayer(player->getName());
setInventoryModified(ca->craft_inv, false);
//bool craft_inv_is_current_player =
// (ca->craft_inv.type == InventoryLocation::PLAYER) &&
// (ca->craft_inv.name == player->getName());
// Disallow crafting if not allowed to interact
if (!checkPriv(player->getName(), "interact")) {
infostream << "Cannot craft: "
<< "No interact privilege" << std::endl;
delete a;
return;
}
}
// Do the action
a->apply(this, playersao, this);
// Eat the action
delete a;
SendInventory(playersao);
}
void Server::handleCommand_ChatMessage(NetworkPacket* pkt)
{
/*
u16 command
u16 length
wstring message
*/
u16 len;
*pkt >> len;
std::wstring message;
for (u16 i = 0; i < len; i++) {
u16 tmp_wchar;
*pkt >> tmp_wchar;
message += (wchar_t)tmp_wchar;
}
Player *player = m_env->getPlayer(pkt->getPeerId());
if (player == NULL) {
errorstream << "Server::ProcessData(): Canceling: "
"No player for peer_id=" << pkt->getPeerId()
<< " disconnecting peer!" << std::endl;
m_con.DisconnectPeer(pkt->getPeerId());
return;
}
// If something goes wrong, this player is to blame
RollbackScopeActor rollback_scope(m_rollback,
std::string("player:")+player->getName());
// Get player name of this client
std::wstring name = narrow_to_wide(player->getName());
// Run script hook
bool ate = m_script->on_chat_message(player->getName(),
wide_to_narrow(message));
// If script ate the message, don't proceed
if (ate)
return;
// Line to send to players
std::wstring line;
// Whether to send to the player that sent the line
bool send_to_sender_only = false;
// Commands are implemented in Lua, so only catch invalid
// commands that were not "eaten" and send an error back
if (message[0] == L'/') {
message = message.substr(1);
send_to_sender_only = true;
if (message.length() == 0)
line += L"-!- Empty command";
else
line += L"-!- Invalid command: " + str_split(message, L' ')[0];
}
else {
if (checkPriv(player->getName(), "shout")) {
line += L"<";
line += name;
line += L"> ";
line += message;
} else {
line += L"-!- You don't have permission to shout.";
send_to_sender_only = true;
}
}
if (line != L"")
{
/*
Send the message to sender
*/
if (send_to_sender_only) {
SendChatMessage(pkt->getPeerId(), line);
}
/*
Send the message to others
*/
else {
actionstream << "CHAT: " << wide_to_narrow(line)<<std::endl;
std::vector<u16> clients = m_clients.getClientIDs();
for (std::vector<u16>::iterator i = clients.begin();
i != clients.end(); ++i) {
if (*i != pkt->getPeerId())
SendChatMessage(*i, line);
}
}
}
}
void Server::handleCommand_Damage(NetworkPacket* pkt)
{
u8 damage;
*pkt >> damage;
Player *player = m_env->getPlayer(pkt->getPeerId());
if (player == NULL) {
errorstream << "Server::ProcessData(): Canceling: "
"No player for peer_id=" << pkt->getPeerId()
<< " disconnecting peer!" << std::endl;
m_con.DisconnectPeer(pkt->getPeerId());
return;
}
PlayerSAO *playersao = player->getPlayerSAO();
if (playersao == NULL) {
errorstream << "Server::ProcessData(): Canceling: "
"No player object for peer_id=" << pkt->getPeerId()
<< " disconnecting peer!" << std::endl;
m_con.DisconnectPeer(pkt->getPeerId());
return;
}
if (g_settings->getBool("enable_damage")) {
actionstream << player->getName() << " damaged by "
<< (int)damage << " hp at " << PP(player->getPosition() / BS)
<< std::endl;
playersao->setHP(playersao->getHP() - damage);
SendPlayerHPOrDie(playersao);
}
}
void Server::handleCommand_Breath(NetworkPacket* pkt)
{
u16 breath;
*pkt >> breath;
Player *player = m_env->getPlayer(pkt->getPeerId());
if (player == NULL) {
errorstream << "Server::ProcessData(): Canceling: "
"No player for peer_id=" << pkt->getPeerId()
<< " disconnecting peer!" << std::endl;
m_con.DisconnectPeer(pkt->getPeerId());
return;
}
/*
* If player is dead, we don't need to update the breath
* He is dead !
*/
if (player->isDead()) {
verbosestream << "TOSERVER_BREATH: " << player->getName()
<< " is dead. Ignoring packet";
return;
}
PlayerSAO *playersao = player->getPlayerSAO();
if (playersao == NULL) {
errorstream << "Server::ProcessData(): Canceling: "
"No player object for peer_id=" << pkt->getPeerId()
<< " disconnecting peer!" << std::endl;
m_con.DisconnectPeer(pkt->getPeerId());
return;
}
playersao->setBreath(breath);
SendPlayerBreath(pkt->getPeerId());
}
void Server::handleCommand_Password(NetworkPacket* pkt)
{
if (pkt->getSize() != PASSWORD_SIZE * 2)
return;
std::string oldpwd;
std::string newpwd;
// Deny for clients using the new protocol
RemoteClient* client = getClient(pkt->getPeerId(), CS_Created);
if (client->net_proto_version >= 25) {
infostream << "Server::handleCommand_Password(): Denying change: "
<< " Client protocol version for peer_id=" << pkt->getPeerId()
<< " too new!" << std::endl;
return;
}
for (u16 i = 0; i < PASSWORD_SIZE - 1; i++) {
char c = pkt->getChar(i);
if (c == 0)
break;
oldpwd += c;
}
for (u16 i = 0; i < PASSWORD_SIZE - 1; i++) {
char c = pkt->getChar(PASSWORD_SIZE + i);
if (c == 0)
break;
newpwd += c;
}
Player *player = m_env->getPlayer(pkt->getPeerId());
if (player == NULL) {
errorstream << "Server::ProcessData(): Canceling: "
"No player for peer_id=" << pkt->getPeerId()
<< " disconnecting peer!" << std::endl;
m_con.DisconnectPeer(pkt->getPeerId());
return;
}
if (!base64_is_valid(newpwd)) {
infostream<<"Server: " << player->getName() <<
" supplied invalid password hash" << std::endl;
// Wrong old password supplied!!
SendChatMessage(pkt->getPeerId(), L"Invalid new password hash supplied. Password NOT changed.");
return;
}
infostream << "Server: Client requests a password change from "
<< "'" << oldpwd << "' to '" << newpwd << "'" << std::endl;
std::string playername = player->getName();
std::string checkpwd;
m_script->getAuth(playername, &checkpwd, NULL);
if (oldpwd != checkpwd) {
infostream << "Server: invalid old password" << std::endl;
// Wrong old password supplied!!
SendChatMessage(pkt->getPeerId(), L"Invalid old password supplied. Password NOT changed.");
return;
}
bool success = m_script->setPassword(playername, newpwd);
if (success) {
actionstream << player->getName() << " changes password" << std::endl;
SendChatMessage(pkt->getPeerId(), L"Password change successful.");
} else {
actionstream << player->getName() << " tries to change password but "
<< "it fails" << std::endl;
SendChatMessage(pkt->getPeerId(), L"Password change failed or unavailable.");
}
}
void Server::handleCommand_PlayerItem(NetworkPacket* pkt)
{
if (pkt->getSize() < 2)
return;
Player *player = m_env->getPlayer(pkt->getPeerId());
if (player == NULL) {
errorstream << "Server::ProcessData(): Canceling: "
"No player for peer_id=" << pkt->getPeerId()
<< " disconnecting peer!" << std::endl;
m_con.DisconnectPeer(pkt->getPeerId());
return;
}
PlayerSAO *playersao = player->getPlayerSAO();
if (playersao == NULL) {
errorstream << "Server::ProcessData(): Canceling: "
"No player object for peer_id=" << pkt->getPeerId()
<< " disconnecting peer!" << std::endl;
m_con.DisconnectPeer(pkt->getPeerId());
return;
}
u16 item;
*pkt >> item;
playersao->setWieldIndex(item);
}
void Server::handleCommand_Respawn(NetworkPacket* pkt)
{
Player *player = m_env->getPlayer(pkt->getPeerId());
if (player == NULL) {
errorstream << "Server::ProcessData(): Canceling: "
"No player for peer_id=" << pkt->getPeerId()
<< " disconnecting peer!" << std::endl;
m_con.DisconnectPeer(pkt->getPeerId());
return;
}
if (!player->isDead())
return;
RespawnPlayer(pkt->getPeerId());
actionstream << player->getName() << " respawns at "
<< PP(player->getPosition()/BS) << std::endl;
// ActiveObject is added to environment in AsyncRunStep after
// the previous addition has been successfully removed
}
void Server::handleCommand_Interact(NetworkPacket* pkt)
{
std::string datastring(pkt->getString(0), pkt->getSize());
std::istringstream is(datastring, std::ios_base::binary);
/*
[0] u16 command
[2] u8 action
[3] u16 item
[5] u32 length of the next item
[9] serialized PointedThing
actions:
0: start digging (from undersurface) or use
1: stop digging (all parameters ignored)
2: digging completed
3: place block or item (to abovesurface)
4: use item
*/
u8 action = readU8(is);
u16 item_i = readU16(is);
std::istringstream tmp_is(deSerializeLongString(is), std::ios::binary);
PointedThing pointed;
pointed.deSerialize(tmp_is);
verbosestream << "TOSERVER_INTERACT: action=" << (int)action << ", item="
<< item_i << ", pointed=" << pointed.dump() << std::endl;
Player *player = m_env->getPlayer(pkt->getPeerId());
if (player == NULL) {
errorstream << "Server::ProcessData(): Canceling: "
"No player for peer_id=" << pkt->getPeerId()
<< " disconnecting peer!" << std::endl;
m_con.DisconnectPeer(pkt->getPeerId());
return;
}
PlayerSAO *playersao = player->getPlayerSAO();
if (playersao == NULL) {
errorstream << "Server::ProcessData(): Canceling: "
"No player object for peer_id=" << pkt->getPeerId()
<< " disconnecting peer!" << std::endl;
m_con.DisconnectPeer(pkt->getPeerId());
return;
}
if (player->isDead()) {
verbosestream << "TOSERVER_INTERACT: " << player->getName()
<< " is dead. Ignoring packet";
return;
}
v3f player_pos = playersao->getLastGoodPosition();
// Update wielded item
playersao->setWieldIndex(item_i);
// Get pointed to node (undefined if not POINTEDTYPE_NODE)
v3s16 p_under = pointed.node_undersurface;
v3s16 p_above = pointed.node_abovesurface;
// Get pointed to object (NULL if not POINTEDTYPE_OBJECT)
ServerActiveObject *pointed_object = NULL;
if (pointed.type == POINTEDTHING_OBJECT) {
pointed_object = m_env->getActiveObject(pointed.object_id);
if (pointed_object == NULL) {
verbosestream << "TOSERVER_INTERACT: "
"pointed object is NULL" << std::endl;
return;
}
}
v3f pointed_pos_under = player_pos;
v3f pointed_pos_above = player_pos;
if (pointed.type == POINTEDTHING_NODE) {
pointed_pos_under = intToFloat(p_under, BS);
pointed_pos_above = intToFloat(p_above, BS);
}
else if (pointed.type == POINTEDTHING_OBJECT) {
pointed_pos_under = pointed_object->getBasePosition();
pointed_pos_above = pointed_pos_under;
}
/*
Check that target is reasonably close
(only when digging or placing things)
*/
if (action == 0 || action == 2 || action == 3) {
float d = player_pos.getDistanceFrom(pointed_pos_under);
float max_d = BS * 14; // Just some large enough value
if (d > max_d) {
actionstream << "Player " << player->getName()
<< " tried to access " << pointed.dump()
<< " from too far: "
<< "d=" << d <<", max_d=" << max_d
<< ". ignoring." << std::endl;
// Re-send block to revert change on client-side
RemoteClient *client = getClient(pkt->getPeerId());
v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
client->SetBlockNotSent(blockpos);
// Call callbacks
m_script->on_cheat(playersao, "interacted_too_far");
// Do nothing else
return;
}
}
/*
Make sure the player is allowed to do it
*/
if (!checkPriv(player->getName(), "interact")) {
actionstream<<player->getName()<<" attempted to interact with "
<<pointed.dump()<<" without 'interact' privilege"
<<std::endl;
// Re-send block to revert change on client-side
RemoteClient *client = getClient(pkt->getPeerId());
// Digging completed -> under
if (action == 2) {
v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
client->SetBlockNotSent(blockpos);
}
// Placement -> above
if (action == 3) {
v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_above, BS));
client->SetBlockNotSent(blockpos);
}
return;
}
/*
If something goes wrong, this player is to blame
*/
RollbackScopeActor rollback_scope(m_rollback,
std::string("player:")+player->getName());
/*
0: start digging or punch object
*/
if (action == 0) {
if (pointed.type == POINTEDTHING_NODE) {
/*
NOTE: This can be used in the future to check if
somebody is cheating, by checking the timing.
*/
MapNode n(CONTENT_IGNORE);
bool pos_ok;
n = m_env->getMap().getNodeNoEx(p_under, &pos_ok);
if (pos_ok)
n = m_env->getMap().getNodeNoEx(p_under, &pos_ok);
if (!pos_ok) {
infostream << "Server: Not punching: Node not found."
<< " Adding block to emerge queue."
<< std::endl;
m_emerge->enqueueBlockEmerge(pkt->getPeerId(), getNodeBlockPos(p_above), false);
}
if (n.getContent() != CONTENT_IGNORE)
m_script->node_on_punch(p_under, n, playersao, pointed);
// Cheat prevention
playersao->noCheatDigStart(p_under);
}
else if (pointed.type == POINTEDTHING_OBJECT) {
// Skip if object has been removed
if (pointed_object->m_removed)
return;
actionstream<<player->getName()<<" punches object "
<<pointed.object_id<<": "
<<pointed_object->getDescription()<<std::endl;
ItemStack punchitem = playersao->getWieldedItem();
ToolCapabilities toolcap =
punchitem.getToolCapabilities(m_itemdef);
v3f dir = (pointed_object->getBasePosition() -
(player->getPosition() + player->getEyeOffset())
).normalize();
float time_from_last_punch =
playersao->resetTimeFromLastPunch();
s16 src_original_hp = pointed_object->getHP();
s16 dst_origin_hp = playersao->getHP();
pointed_object->punch(dir, &toolcap, playersao,
time_from_last_punch);
// If the object is a player and its HP changed
if (src_original_hp != pointed_object->getHP() &&
pointed_object->getType() == ACTIVEOBJECT_TYPE_PLAYER) {
SendPlayerHPOrDie((PlayerSAO *)pointed_object);
}
// If the puncher is a player and its HP changed
if (dst_origin_hp != playersao->getHP())
SendPlayerHPOrDie(playersao);
}
} // action == 0
/*
1: stop digging
*/
else if (action == 1) {
} // action == 1
/*
2: Digging completed
*/
else if (action == 2) {
// Only digging of nodes
if (pointed.type == POINTEDTHING_NODE) {
bool pos_ok;
MapNode n = m_env->getMap().getNodeNoEx(p_under, &pos_ok);
if (!pos_ok) {
infostream << "Server: Not finishing digging: Node not found."
<< " Adding block to emerge queue."
<< std::endl;
m_emerge->enqueueBlockEmerge(pkt->getPeerId(), getNodeBlockPos(p_above), false);
}
/* Cheat prevention */
bool is_valid_dig = true;
if (!isSingleplayer() && !g_settings->getBool("disable_anticheat")) {
v3s16 nocheat_p = playersao->getNoCheatDigPos();
float nocheat_t = playersao->getNoCheatDigTime();
playersao->noCheatDigEnd();
// If player didn't start digging this, ignore dig
if (nocheat_p != p_under) {
infostream << "Server: NoCheat: " << player->getName()
<< " started digging "
<< PP(nocheat_p) << " and completed digging "
<< PP(p_under) << "; not digging." << std::endl;
is_valid_dig = false;
// Call callbacks
m_script->on_cheat(playersao, "finished_unknown_dig");
}
// Get player's wielded item
ItemStack playeritem;
InventoryList *mlist = playersao->getInventory()->getList("main");
if (mlist != NULL)
playeritem = mlist->getItem(playersao->getWieldIndex());
ToolCapabilities playeritem_toolcap =
playeritem.getToolCapabilities(m_itemdef);
// Get diggability and expected digging time
DigParams params = getDigParams(m_nodedef->get(n).groups,
&playeritem_toolcap);
// If can't dig, try hand
if (!params.diggable) {
const ItemDefinition &hand = m_itemdef->get("");
const ToolCapabilities *tp = hand.tool_capabilities;
if (tp)
params = getDigParams(m_nodedef->get(n).groups, tp);
}
// If can't dig, ignore dig
if (!params.diggable) {
infostream << "Server: NoCheat: " << player->getName()
<< " completed digging " << PP(p_under)
<< ", which is not diggable with tool. not digging."
<< std::endl;
is_valid_dig = false;
// Call callbacks
m_script->on_cheat(playersao, "dug_unbreakable");
}
// Check digging time
// If already invalidated, we don't have to
if (!is_valid_dig) {
// Well not our problem then
}
// Clean and long dig
else if (params.time > 2.0 && nocheat_t * 1.2 > params.time) {
// All is good, but grab time from pool; don't care if
// it's actually available
playersao->getDigPool().grab(params.time);
}
// Short or laggy dig
// Try getting the time from pool
else if (playersao->getDigPool().grab(params.time)) {
// All is good
}
// Dig not possible
else {
infostream << "Server: NoCheat: " << player->getName()
<< " completed digging " << PP(p_under)
<< "too fast; not digging." << std::endl;
is_valid_dig = false;
// Call callbacks
m_script->on_cheat(playersao, "dug_too_fast");
}
}
/* Actually dig node */
if (is_valid_dig && n.getContent() != CONTENT_IGNORE)
m_script->node_on_dig(p_under, n, playersao);
v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
RemoteClient *client = getClient(pkt->getPeerId());
// Send unusual result (that is, node not being removed)
if (m_env->getMap().getNodeNoEx(p_under).getContent() != CONTENT_AIR) {
// Re-send block to revert change on client-side
client->SetBlockNotSent(blockpos);
}
else {
client->ResendBlockIfOnWire(blockpos);
}
}
} // action == 2
/*
3: place block or right-click object
*/
else if (action == 3) {
ItemStack item = playersao->getWieldedItem();
// Reset build time counter
if (pointed.type == POINTEDTHING_NODE &&
item.getDefinition(m_itemdef).type == ITEM_NODE)
getClient(pkt->getPeerId())->m_time_from_building = 0.0;
if (pointed.type == POINTEDTHING_OBJECT) {
// Right click object
// Skip if object has been removed
if (pointed_object->m_removed)
return;
actionstream << player->getName() << " right-clicks object "
<< pointed.object_id << ": "
<< pointed_object->getDescription() << std::endl;
// Do stuff
pointed_object->rightClick(playersao);
}
else if (m_script->item_OnPlace(
item, playersao, pointed)) {
// Placement was handled in lua
// Apply returned ItemStack
if (playersao->setWieldedItem(item)) {
SendInventory(playersao);
}
}
// If item has node placement prediction, always send the
// blocks to make sure the client knows what exactly happened
RemoteClient *client = getClient(pkt->getPeerId());
v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_above, BS));
v3s16 blockpos2 = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
if (item.getDefinition(m_itemdef).node_placement_prediction != "") {
client->SetBlockNotSent(blockpos);
if (blockpos2 != blockpos) {
client->SetBlockNotSent(blockpos2);
}
}
else {
client->ResendBlockIfOnWire(blockpos);
if (blockpos2 != blockpos) {
client->ResendBlockIfOnWire(blockpos2);
}
}
} // action == 3
/*
4: use
*/
else if (action == 4) {
ItemStack item = playersao->getWieldedItem();
actionstream << player->getName() << " uses " << item.name
<< ", pointing at " << pointed.dump() << std::endl;
if (m_script->item_OnUse(
item, playersao, pointed)) {
// Apply returned ItemStack
if (playersao->setWieldedItem(item)) {
SendInventory(playersao);
}
}
} // action == 4
/*
Catch invalid actions
*/
else {
infostream << "WARNING: Server: Invalid action "
<< action << std::endl;
}
}
void Server::handleCommand_RemovedSounds(NetworkPacket* pkt)
{
u16 num;
*pkt >> num;
for (u16 k = 0; k < num; k++) {
s32 id;
*pkt >> id;
std::map<s32, ServerPlayingSound>::iterator i =
m_playing_sounds.find(id);
if (i == m_playing_sounds.end())
continue;
ServerPlayingSound &psound = i->second;
psound.clients.erase(pkt->getPeerId());
if (psound.clients.empty())
m_playing_sounds.erase(i++);
}
}
void Server::handleCommand_NodeMetaFields(NetworkPacket* pkt)
{
v3s16 p;
std::string formname;
u16 num;
*pkt >> p >> formname >> num;
StringMap fields;
for (u16 k = 0; k < num; k++) {
std::string fieldname;
*pkt >> fieldname;
fields[fieldname] = pkt->readLongString();
}
Player *player = m_env->getPlayer(pkt->getPeerId());
if (player == NULL) {
errorstream << "Server::ProcessData(): Canceling: "
"No player for peer_id=" << pkt->getPeerId()
<< " disconnecting peer!" << std::endl;
m_con.DisconnectPeer(pkt->getPeerId());
return;
}
PlayerSAO *playersao = player->getPlayerSAO();
if (playersao == NULL) {
errorstream << "Server::ProcessData(): Canceling: "
"No player object for peer_id=" << pkt->getPeerId()
<< " disconnecting peer!" << std::endl;
m_con.DisconnectPeer(pkt->getPeerId());
return;
}
// If something goes wrong, this player is to blame
RollbackScopeActor rollback_scope(m_rollback,
std::string("player:")+player->getName());
// Check the target node for rollback data; leave others unnoticed
RollbackNode rn_old(&m_env->getMap(), p, this);
m_script->node_on_receive_fields(p, formname, fields, playersao);
// Report rollback data
RollbackNode rn_new(&m_env->getMap(), p, this);
if (rollback() && rn_new != rn_old) {
RollbackAction action;
action.setSetNode(p, rn_old, rn_new);
rollback()->reportAction(action);
}
}
void Server::handleCommand_InventoryFields(NetworkPacket* pkt)
{
std::string formname;
u16 num;
*pkt >> formname >> num;
StringMap fields;
for (u16 k = 0; k < num; k++) {
std::string fieldname;
*pkt >> fieldname;
fields[fieldname] = pkt->readLongString();
}
Player *player = m_env->getPlayer(pkt->getPeerId());
if (player == NULL) {
errorstream << "Server::ProcessData(): Canceling: "
"No player for peer_id=" << pkt->getPeerId()
<< " disconnecting peer!" << std::endl;
m_con.DisconnectPeer(pkt->getPeerId());
return;
}
PlayerSAO *playersao = player->getPlayerSAO();
if (playersao == NULL) {
errorstream << "Server::ProcessData(): Canceling: "
"No player object for peer_id=" << pkt->getPeerId()
<< " disconnecting peer!" << std::endl;
m_con.DisconnectPeer(pkt->getPeerId());
return;
}
m_script->on_playerReceiveFields(playersao, formname, fields);
}
void Server::handleCommand_FirstSrp(NetworkPacket* pkt)
{
RemoteClient* client = getClient(pkt->getPeerId(), CS_Invalid);
ClientState cstate = client->getState();
std::string playername = client->getName();
std::string salt;
std::string verification_key;
std::string addr_s = getPeerAddress(pkt->getPeerId()).serializeString();
u8 is_empty;
*pkt >> salt >> verification_key >> is_empty;
verbosestream << "Server: Got TOSERVER_FIRST_SRP from " << addr_s
<< ", with is_empty= " << is_empty << std::endl;
// Either this packet is sent because the user is new or to change the password
if (cstate == CS_HelloSent) {
if (!client->isMechAllowed(AUTH_MECHANISM_FIRST_SRP)) {
actionstream << "Server: Client from " << addr_s
<< " tried to set password without being "
<< "authenticated, or the username being new." << std::endl;
DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_UNEXPECTED_DATA);
return;
}
if (!isSingleplayer() &&
g_settings->getBool("disallow_empty_password") &&
is_empty == 1) {
actionstream << "Server: " << playername
<< " supplied empty password from " << addr_s << std::endl;
DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_EMPTY_PASSWORD);
return;
}
std::string initial_ver_key;
initial_ver_key = encodeSRPVerifier(verification_key, salt);
m_script->createAuth(playername, initial_ver_key);
acceptAuth(pkt->getPeerId(), false);
} else {
if (cstate < CS_SudoMode) {
infostream << "Server::ProcessData(): Ignoring TOSERVER_FIRST_SRP from "
<< addr_s << ": " << "Client has wrong state " << cstate << "."
<< std::endl;
return;
}
m_clients.event(pkt->getPeerId(), CSE_SudoLeave);
std::string pw_db_field = encodeSRPVerifier(verification_key, salt);
bool success = m_script->setPassword(playername, pw_db_field);
if (success) {
actionstream << playername << " changes password" << std::endl;
SendChatMessage(pkt->getPeerId(), L"Password change successful.");
} else {
actionstream << playername << " tries to change password but "
<< "it fails" << std::endl;
SendChatMessage(pkt->getPeerId(), L"Password change failed or unavailable.");
}
}
}
void Server::handleCommand_SrpBytesA(NetworkPacket* pkt)
{
RemoteClient* client = getClient(pkt->getPeerId(), CS_Invalid);
ClientState cstate = client->getState();
bool wantSudo = (cstate == CS_Active);
if (!((cstate == CS_HelloSent) || (cstate == CS_Active))) {
actionstream << "Server: got SRP _A packet in wrong state "
<< cstate << " from "
<< getPeerAddress(pkt->getPeerId()).serializeString()
<< ". Ignoring." << std::endl;
return;
}
if (client->chosen_mech != AUTH_MECHANISM_NONE) {
actionstream << "Server: got SRP _A packet, while auth"
<< "is already going on with mech " << client->chosen_mech
<< " from " << getPeerAddress(pkt->getPeerId()).serializeString()
<< " (wantSudo=" << wantSudo << "). Ignoring." << std::endl;
if (wantSudo) {
DenySudoAccess(pkt->getPeerId());
return;
} else {
DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_UNEXPECTED_DATA);
return;
}
}
std::string bytes_A;
u8 based_on;
*pkt >> bytes_A >> based_on;
infostream << "Server: TOSERVER_SRP_BYTES_A received with "
<< "based_on=" << int(based_on) << " and len_A="
<< bytes_A.length() << "." << std::endl;
AuthMechanism chosen = (based_on == 0) ?
AUTH_MECHANISM_LEGACY_PASSWORD : AUTH_MECHANISM_SRP;
if (wantSudo) {
if (!client->isSudoMechAllowed(chosen)) {
actionstream << "Server: Player \"" << client->getName()
<< "\" at " << getPeerAddress(pkt->getPeerId()).serializeString()
<< " tried to change password using unallowed mech "
<< chosen << "." << std::endl;
DenySudoAccess(pkt->getPeerId());
return;
}
} else {
if (!client->isMechAllowed(chosen)) {
actionstream << "Server: Client tried to authenticate from "
<< getPeerAddress(pkt->getPeerId()).serializeString()
<< " using unallowed mech " << chosen << "." << std::endl;
DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_UNEXPECTED_DATA);
return;
}
}
client->chosen_mech = chosen;
std::string bytes_s;
std::string bytes_v;
if (based_on == 0) {
char *p_bytes_s = 0;
size_t len_s = 0;
char *p_bytes_v = 0;
size_t len_v = 0;
getSRPVerifier(client->getName(), client->enc_pwd,
&p_bytes_s, &len_s,
&p_bytes_v, &len_v);
bytes_s = std::string(p_bytes_s, len_s);
bytes_v = std::string(p_bytes_v, len_v);
free(p_bytes_s);
free(p_bytes_v);
} else if (!decodeSRPVerifier(client->enc_pwd, &bytes_s, &bytes_v)) {
// Non-base64 errors should have been catched in the init handler
actionstream << "Server: User " << client->getName()
<< " tried to log in, but srp verifier field"
<< " was invalid (most likely invalid base64)." << std::endl;
DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_SERVER_FAIL);
return;
}
char *bytes_B = 0;
size_t len_B = 0;
client->auth_data = srp_verifier_new(SRP_SHA256, SRP_NG_2048,
client->getName().c_str(),
(const unsigned char *) bytes_s.c_str(), bytes_s.size(),
(const unsigned char *) bytes_v.c_str(), bytes_v.size(),
(const unsigned char *) bytes_A.c_str(), bytes_A.size(),
NULL, 0,
(unsigned char **) &bytes_B, &len_B, NULL, NULL);
if (!bytes_B) {
actionstream << "Server: User " << client->getName()
<< " tried to log in, SRP-6a safety check violated in _A handler."
<< std::endl;
if (wantSudo) {
DenySudoAccess(pkt->getPeerId());
return;
} else {
DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_UNEXPECTED_DATA);
return;
}
}
NetworkPacket resp_pkt(TOCLIENT_SRP_BYTES_S_B, 0, pkt->getPeerId());
resp_pkt << bytes_s << std::string(bytes_B, len_B);
Send(&resp_pkt);
}
void Server::handleCommand_SrpBytesM(NetworkPacket* pkt)
{
RemoteClient* client = getClient(pkt->getPeerId(), CS_Invalid);
ClientState cstate = client->getState();
bool wantSudo = (cstate == CS_Active);
verbosestream << "Server: Recieved TOCLIENT_SRP_BYTES_M." << std::endl;
if (!((cstate == CS_HelloSent) || (cstate == CS_Active))) {
actionstream << "Server: got SRP _M packet in wrong state "
<< cstate << " from "
<< getPeerAddress(pkt->getPeerId()).serializeString()
<< ". Ignoring." << std::endl;
return;
}
if ((client->chosen_mech != AUTH_MECHANISM_SRP)
&& (client->chosen_mech != AUTH_MECHANISM_LEGACY_PASSWORD)) {
actionstream << "Server: got SRP _M packet, while auth"
<< "is going on with mech " << client->chosen_mech
<< " from " << getPeerAddress(pkt->getPeerId()).serializeString()
<< " (wantSudo=" << wantSudo << "). Denying." << std::endl;
if (wantSudo) {
DenySudoAccess(pkt->getPeerId());
return;
} else {
DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_UNEXPECTED_DATA);
return;
}
}
std::string bytes_M;
*pkt >> bytes_M;
if (srp_verifier_get_session_key_length((SRPVerifier *) client->auth_data)
!= bytes_M.size()) {
actionstream << "Server: User " << client->getName()
<< " at " << getPeerAddress(pkt->getPeerId()).serializeString()
<< " sent bytes_M with invalid length " << bytes_M.size() << std::endl;
DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_UNEXPECTED_DATA);
return;
}
unsigned char *bytes_HAMK = 0;
srp_verifier_verify_session((SRPVerifier *) client->auth_data,
(unsigned char *)bytes_M.c_str(), &bytes_HAMK);
if (!bytes_HAMK) {
if (wantSudo) {
actionstream << "Server: User " << client->getName()
<< " at " << getPeerAddress(pkt->getPeerId()).serializeString()
<< " tried to change their password, but supplied wrong"
<< " (SRP) password for authentication." << std::endl;
DenySudoAccess(pkt->getPeerId());
return;
} else {
actionstream << "Server: User " << client->getName()
<< " at " << getPeerAddress(pkt->getPeerId()).serializeString()
<< " supplied wrong (SRP) password from address "
<< getPeerAddress(pkt->getPeerId()).serializeString()
<< "." << std::endl;
DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_WRONG_PASSWORD);
return;
}
}
if (client->create_player_on_auth_success) {
std::string playername = client->getName();
m_script->createAuth(playername, client->enc_pwd);
std::string checkpwd; // not used, but needed for passing something
if (!m_script->getAuth(playername, &checkpwd, NULL)) {
actionstream << "Server: " << playername << " cannot be authenticated"
<< " (auth handler does not work?)" << std::endl;
DenyAccess(pkt->getPeerId(), SERVER_ACCESSDENIED_SERVER_FAIL);
return;
}
client->create_player_on_auth_success = false;
}
acceptAuth(pkt->getPeerId(), wantSudo);
}
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