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sourcemod/core/systems/PluginSys.cpp
David Anderson 167c1d0a31 added request amb948 - blocking of plugin loads 
--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%401442
2007-09-18 17:44:17 +00:00

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/**
* vim: set ts=4 :
* =============================================================================
* SourceMod
* Copyright (C) 2004-2007 AlliedModders LLC. All rights reserved.
* =============================================================================
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, version 3.0, as published by the
* Free Software Foundation.
*
* 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 General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, AlliedModders LLC gives you permission to link the
* code of this program (as well as its derivative works) to "Half-Life 2," the
* "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
* by the Valve Corporation. You must obey the GNU General Public License in
* all respects for all other code used. Additionally, AlliedModders LLC grants
* this exception to all derivative works. AlliedModders LLC defines further
* exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
* or <http://www.sourcemod.net/license.php>.
*
* Version: $Id$
*/
#include <stdio.h>
#include "PluginSys.h"
#include "ShareSys.h"
#include "LibrarySys.h"
#include "HandleSys.h"
#include "ForwardSys.h"
#include "sourcemm_api.h"
#include "sourcemod.h"
#include "TextParsers.h"
#include "Logger.h"
#include "ExtensionSys.h"
#include "sm_srvcmds.h"
#include "sm_stringutil.h"
#include "ConCmdManager.h"
#include "PlayerManager.h"
#include "CoreConfig.h"
CPluginManager g_PluginSys;
HandleType_t g_PluginType = 0;
IdentityType_t g_PluginIdent = 0;
CPlugin::CPlugin(const char *file)
{
static int MySerial = 0;
m_type = PluginType_Private;
m_status = Plugin_Uncompiled;
m_serial = ++MySerial;
m_plugin = NULL;
m_errormsg[256] = '\0';
snprintf(m_filename, sizeof(m_filename), "%s", file);
m_handle = 0;
m_ident = NULL;
m_pProps = sm_trie_create();
m_FakeNativesMissing = false;
m_LibraryMissing = false;
}
CPlugin::~CPlugin()
{
if (m_handle)
{
HandleSecurity sec;
sec.pOwner = g_PluginSys.GetIdentity();
sec.pIdentity = sec.pOwner;
g_HandleSys.FreeHandle(m_handle, &sec);
g_ShareSys.DestroyIdentity(m_ident);
}
if (m_ctx.base)
{
delete m_ctx.base;
m_ctx.base = NULL;
}
if (m_ctx.ctx)
{
m_ctx.vm->FreeContext(m_ctx.ctx);
m_ctx.ctx = NULL;
}
if (m_ctx.co)
{
m_ctx.vm->AbortCompilation(m_ctx.co);
m_ctx.co = NULL;
}
if (m_plugin)
{
g_pSourcePawn->FreeFromMemory(m_plugin);
m_plugin = NULL;
}
if (m_pProps)
{
sm_trie_destroy(m_pProps);
}
for (size_t i=0; i<m_configs.size(); i++)
{
delete m_configs[i];
}
m_configs.clear();
}
void CPlugin::InitIdentity()
{
if (!m_handle)
{
m_ident = g_ShareSys.CreateIdentity(g_PluginIdent, this);
m_handle = g_HandleSys.CreateHandle(g_PluginType, this, g_PluginSys.GetIdentity(), g_PluginSys.GetIdentity(), NULL);
m_ctx.base->SetIdentity(m_ident);
}
}
Handle_t CPlugin::GetMyHandle()
{
return m_handle;
}
CPlugin *CPlugin::CreatePlugin(const char *file, char *error, size_t maxlength)
{
char fullpath[PLATFORM_MAX_PATH];
g_SourceMod.BuildPath(Path_SM, fullpath, sizeof(fullpath), "plugins/%s", file);
FILE *fp = fopen(fullpath, "rb");
CPlugin *pPlugin = new CPlugin(file);
if (!fp)
{
if (error)
{
snprintf(error, maxlength, "Unable to open file");
}
pPlugin->m_status = Plugin_BadLoad;
return pPlugin;
}
int err;
sp_plugin_t *pl = g_pSourcePawn->LoadFromFilePointer(fp, &err);
if (pl == NULL)
{
fclose(fp);
if (error)
{
snprintf(error, maxlength, "Error %d while parsing plugin", err);
}
pPlugin->m_status = Plugin_BadLoad;
return pPlugin;
}
fclose(fp);
pPlugin->m_plugin = pl;
return pPlugin;
}
bool CPlugin::GetProperty(const char *prop, void **ptr, bool remove/* =false */)
{
bool exists = sm_trie_retrieve(m_pProps, prop, ptr);
if (exists && remove)
{
sm_trie_delete(m_pProps, prop);
}
return exists;
}
bool CPlugin::SetProperty(const char *prop, void *ptr)
{
return sm_trie_insert(m_pProps, prop, ptr);
}
ICompilation *CPlugin::StartMyCompile(IVirtualMachine *vm)
{
if (!m_plugin)
{
return NULL;
}
/* :NOTICE: We will eventually need to change these natives
* for swapping in new contexts
*/
if (m_ctx.co || m_ctx.ctx)
{
return NULL;
}
m_status = Plugin_Uncompiled;
m_ctx.vm = vm;
m_ctx.co = vm->StartCompilation(m_plugin);
return m_ctx.co;
}
void CPlugin::CancelMyCompile()
{
if (!m_ctx.co)
{
return;
}
m_ctx.vm->AbortCompilation(m_ctx.co);
m_ctx.co = NULL;
m_ctx.vm = NULL;
}
bool CPlugin::FinishMyCompile(char *error, size_t maxlength)
{
if (!m_ctx.co)
{
return false;
}
int err;
m_ctx.ctx = m_ctx.vm->CompileToContext(m_ctx.co, &err);
if (!m_ctx.ctx)
{
memset(&m_ctx, 0, sizeof(m_ctx));
if (error)
{
snprintf(error, maxlength, "JIT failed to compile (error %d)", err);
}
return false;
}
m_ctx.base = new BaseContext(m_ctx.ctx);
m_ctx.ctx->user[SM_CONTEXTVAR_MYSELF] = (void *)this;
m_status = Plugin_Created;
m_ctx.co = NULL;
UpdateInfo();
return true;
}
void CPlugin::SetErrorState(PluginStatus status, const char *error_fmt, ...)
{
PluginStatus old_status = m_status;
m_status = status;
if (old_status == Plugin_Running)
{
/* Tell everyone we're now paused */
g_PluginSys._SetPauseState(this, true);
}
va_list ap;
va_start(ap, error_fmt);
vsnprintf(m_errormsg, sizeof(m_errormsg), error_fmt, ap);
va_end(ap);
if (m_ctx.ctx)
{
m_ctx.ctx->flags |= SPFLAG_PLUGIN_PAUSED;
}
}
void CPlugin::UpdateInfo()
{
/* Now grab the info */
uint32_t idx;
IPluginContext *base = GetBaseContext();
int err = base->FindPubvarByName("myinfo", &idx);
memset(&m_info, 0, sizeof(m_info));
if (err == SP_ERROR_NONE)
{
struct sm_plugininfo_c_t
{
cell_t name;
cell_t description;
cell_t author;
cell_t version;
cell_t url;
};
sm_plugininfo_c_t *cinfo;
cell_t local_addr;
base->GetPubvarAddrs(idx, &local_addr, (cell_t **)&cinfo);
base->LocalToString(cinfo->name, (char **)&m_info.name);
base->LocalToString(cinfo->description, (char **)&m_info.description);
base->LocalToString(cinfo->author, (char **)&m_info.author);
base->LocalToString(cinfo->url, (char **)&m_info.url);
base->LocalToString(cinfo->version, (char **)&m_info.version);
}
m_info.author = m_info.author ? m_info.author : "";
m_info.description = m_info.description ? m_info.description : "";
m_info.name = m_info.name ? m_info.name : "";
m_info.url = m_info.url ? m_info.url : "";
m_info.version = m_info.version ? m_info.version : "";
}
void CPlugin::Call_OnPluginStart()
{
if (m_status != Plugin_Loaded)
{
return;
}
m_status = Plugin_Running;
cell_t result;
IPluginFunction *pFunction = m_ctx.base->GetFunctionByName("OnPluginStart");
if (!pFunction)
{
return;
}
int err;
if ((err=pFunction->Execute(&result)) != SP_ERROR_NONE)
{
SetErrorState(Plugin_Error, "Error detected in plugin startup (see error logs)");
} else {
if (g_OnMapStarted)
{
if ((pFunction = m_ctx.base->GetFunctionByName("OnMapStart")) != NULL)
{
pFunction->Execute(NULL);
}
}
if (SM_AreConfigsExecuted())
{
SM_ExecuteForPlugin(GetBaseContext());
}
}
}
void CPlugin::Call_OnPluginEnd()
{
if (m_status > Plugin_Paused)
{
return;
}
cell_t result;
IPluginFunction *pFunction = m_ctx.base->GetFunctionByName("OnPluginEnd");
if (!pFunction)
{
return;
}
pFunction->Execute(&result);
}
void CPlugin::Call_OnAllPluginsLoaded()
{
if (m_status > Plugin_Paused)
{
return;
}
cell_t result;
IPluginFunction *pFunction = m_ctx.base->GetFunctionByName("OnAllPluginsLoaded");
if (!pFunction)
{
return;
}
pFunction->Execute(&result);
}
bool CPlugin::Call_AskPluginLoad(char *error, size_t maxlength)
{
if (m_status != Plugin_Created)
{
return false;
}
m_status = Plugin_Loaded;
int err;
cell_t result;
IPluginFunction *pFunction = m_ctx.base->GetFunctionByName("AskPluginLoad");
if (!pFunction)
{
return true;
}
pFunction->PushCell(m_handle);
pFunction->PushCell(g_PluginSys.IsLateLoadTime() ? 1 : 0);
pFunction->PushStringEx(error, maxlength, 0, SM_PARAM_COPYBACK);
pFunction->PushCell(maxlength);
if ((err=pFunction->Execute(&result)) != SP_ERROR_NONE)
{
return false;
}
if (!result || m_status != Plugin_Loaded)
{
return false;
}
return true;
}
const sp_plugin_t *CPlugin::GetPluginStructure()
{
return m_plugin;
}
IPluginContext *CPlugin::GetBaseContext()
{
return m_ctx.base;
}
sp_context_t *CPlugin::GetContext()
{
return m_ctx.ctx;
}
const char *CPlugin::GetFilename()
{
return m_filename;
}
PluginType CPlugin::GetType()
{
return m_type;
}
const sm_plugininfo_t *CPlugin::GetPublicInfo()
{
return &m_info;
}
unsigned int CPlugin::GetSerial()
{
return m_serial;
}
PluginStatus CPlugin::GetStatus()
{
return m_status;
}
bool CPlugin::IsDebugging()
{
if (!m_ctx.ctx)
{
return false;
}
return ((m_ctx.ctx->flags & SP_FLAG_DEBUG) == SP_FLAG_DEBUG);
}
void CPlugin::LibraryActions(bool dropping)
{
List<String>::iterator iter;
for (iter = m_Libraries.begin();
iter != m_Libraries.end();
iter++)
{
g_PluginSys.OnLibraryAction((*iter).c_str(), dropping);
}
}
bool CPlugin::SetPauseState(bool paused)
{
if (paused && GetStatus() != Plugin_Running)
{
return false;
} else if (!paused && GetStatus() != Plugin_Paused) {
return false;
}
if (paused)
{
LibraryActions(true);
}
IPluginFunction *pFunction = m_ctx.base->GetFunctionByName("OnPluginPauseChange");
if (pFunction)
{
cell_t result;
pFunction->PushCell(paused ? 1 : 0);
pFunction->Execute(&result);
}
if (paused)
{
m_status = Plugin_Paused;
m_ctx.ctx->flags |= SPFLAG_PLUGIN_PAUSED;
} else {
m_status = Plugin_Running;
m_ctx.ctx->flags &= ~SPFLAG_PLUGIN_PAUSED;
}
g_PluginSys._SetPauseState(this, paused);
if (!paused)
{
LibraryActions(false);
}
return true;
}
IdentityToken_t *CPlugin::GetIdentity()
{
return m_ident;
}
bool CPlugin::ToggleDebugMode(bool debug, char *error, size_t maxlength)
{
int err;
if (!IsRunnable())
{
if (error)
{
snprintf(error, maxlength, "Plugin is not runnable.");
}
return false;
}
if (debug && IsDebugging())
{
if (error)
{
snprintf(error, maxlength, "Plugin is already in debug mode.");
}
return false;
} else if (!debug && !IsDebugging()) {
if (error)
{
snprintf(error, maxlength, "Plugins is already in production mode.");
}
return false;
}
ICompilation *co = g_pVM->StartCompilation(m_ctx.ctx->plugin);
if (!g_pVM->SetCompilationOption(co, "debug", (debug) ? "1" : "0"))
{
if (error)
{
snprintf(error, maxlength, "Failed to change plugin mode (JIT failure).");
}
return false;
}
sp_context_t *new_ctx = g_pVM->CompileToContext(co, &err);
if (new_ctx)
{
memcpy(new_ctx->memory, m_ctx.ctx->memory, m_ctx.ctx->mem_size);
new_ctx->hp = m_ctx.ctx->hp;
new_ctx->sp = m_ctx.ctx->sp;
new_ctx->frm = m_ctx.ctx->frm;
new_ctx->dbreak = m_ctx.ctx->dbreak;
new_ctx->context = m_ctx.ctx->context;
memcpy(new_ctx->user, m_ctx.ctx->user, sizeof(m_ctx.ctx->user));
uint32_t nativeCount = m_plugin->info.natives_num;
for (uint32_t i=0; i<nativeCount; i++)
{
new_ctx->natives[i].pfn = m_ctx.ctx->natives[i].pfn;
new_ctx->natives[i].status = m_ctx.ctx->natives[i].status;
}
g_pVM->FreeContext(m_ctx.ctx);
m_ctx.ctx = new_ctx;
m_ctx.base->SetContext(new_ctx);
UpdateInfo();
} else {
if (error)
{
snprintf(error, maxlength, "Failed to recompile plugin (JIT error %d).", err);
}
return false;
}
return true;
}
bool CPlugin::IsRunnable()
{
return (m_status <= Plugin_Paused) ? true : false;
}
time_t CPlugin::GetFileTimeStamp()
{
char path[PLATFORM_MAX_PATH];
g_SourceMod.BuildPath(Path_SM, path, sizeof(path), "plugins/%s", m_filename);
#ifdef PLATFORM_WINDOWS
struct _stat s;
if (_stat(path, &s) != 0)
#elif defined PLATFORM_POSIX
struct stat s;
if (stat(path, &s) != 0)
#endif
{
return 0;
} else {
return s.st_mtime;
}
}
time_t CPlugin::GetTimeStamp()
{
return m_LastAccess;
}
void CPlugin::SetTimeStamp(time_t t)
{
m_LastAccess = t;
}
void CPlugin::AddLangFile(unsigned int index)
{
m_PhraseFiles.push_back(index);
}
size_t CPlugin::GetLangFileCount()
{
return m_PhraseFiles.size();
}
unsigned int CPlugin::GetLangFileByIndex(unsigned int index)
{
return m_PhraseFiles.at(index);
}
void CPlugin::DependencyDropped(CPlugin *pOwner)
{
if (!m_ctx.ctx)
{
return;
}
List<String>::iterator reqlib_iter;
List<String>::iterator lib_iter;
for (lib_iter=pOwner->m_Libraries.begin(); lib_iter!=pOwner->m_Libraries.end(); lib_iter++)
{
for (reqlib_iter=m_RequiredLibs.begin(); reqlib_iter!=m_RequiredLibs.end(); reqlib_iter++)
{
if ((*reqlib_iter) == (*lib_iter))
{
m_LibraryMissing = true;
}
}
}
List<FakeNative *>::iterator iter;
FakeNative *pNative;
sp_native_t *native;
uint32_t idx;
unsigned int unbound = 0;
for (iter = pOwner->m_fakeNatives.begin();
iter != pOwner->m_fakeNatives.end();
iter++)
{
pNative = (*iter);
/* Find this native! */
if (m_ctx.base->FindNativeByName(pNative->name.c_str(), &idx) != SP_ERROR_NONE)
{
continue;
}
/* Unbind it */
m_ctx.base->GetNativeByIndex(idx, &native);
native->pfn = NULL;
native->status = SP_NATIVE_UNBOUND;
unbound++;
}
if (unbound)
{
m_FakeNativesMissing = true;
}
/* :IDEA: in the future, add native trapping? */
if (m_FakeNativesMissing || m_LibraryMissing)
{
SetErrorState(Plugin_Error, "Depends on plugin: %s", pOwner->GetFilename());
}
m_dependsOn.remove(pOwner);
}
unsigned int CPlugin::GetConfigCount()
{
return (unsigned int)m_configs.size();
}
AutoConfig *CPlugin::GetConfig(unsigned int i)
{
if (i >= GetConfigCount())
{
return NULL;
}
return m_configs[i];
}
void CPlugin::AddConfig(bool autoCreate, const char *cfg, const char *folder)
{
AutoConfig *c = new AutoConfig;
c->autocfg = cfg;
c->folder = folder;
c->create = autoCreate;
m_configs.push_back(c);
}
/*******************
* PLUGIN ITERATOR *
*******************/
CPluginManager::CPluginIterator::CPluginIterator(List<CPlugin *> *_mylist)
{
mylist = _mylist;
Reset();
}
IPlugin *CPluginManager::CPluginIterator::GetPlugin()
{
return (*current);
}
bool CPluginManager::CPluginIterator::MorePlugins()
{
return (current != mylist->end());
}
void CPluginManager::CPluginIterator::NextPlugin()
{
current++;
}
void CPluginManager::CPluginIterator::Release()
{
g_PluginSys.ReleaseIterator(this);
}
CPluginManager::CPluginIterator::~CPluginIterator()
{
}
void CPluginManager::CPluginIterator::Reset()
{
current = mylist->begin();
}
/******************
* PLUGIN MANAGER *
******************/
CPluginManager::CPluginManager()
{
m_LoadLookup = sm_trie_create();
m_AllPluginsLoaded = false;
m_MyIdent = NULL;
m_pNativeLookup = sm_trie_create();
m_pCoreNatives = sm_trie_create();
}
CPluginManager::~CPluginManager()
{
/* :NOTICE:
* Ignore the fact that there might be plugins in the cache.
* This usually means that Core is not being unloaded properly, and everything
* will crash anyway. YAY
*/
sm_trie_destroy(m_LoadLookup);
sm_trie_destroy(m_pNativeLookup);
sm_trie_destroy(m_pCoreNatives);
CStack<CPluginManager::CPluginIterator *>::iterator iter;
for (iter=m_iters.begin(); iter!=m_iters.end(); iter++)
{
delete (*iter);
}
m_iters.popall();
}
void CPluginManager::Shutdown()
{
List<CPlugin *>::iterator iter;
while ((iter = m_plugins.begin()) != m_plugins.end())
{
UnloadPlugin(*iter);
}
}
void CPluginManager::LoadAll_FirstPass(const char *config, const char *basedir)
{
/* First read in the database of plugin settings */
SMCParseError err;
unsigned int line, col;
m_AllPluginsLoaded = false;
if ((err=textparsers->ParseFile_SMC(config, &m_PluginInfo, &line, &col)) != SMCParse_Okay)
{
g_Logger.LogError("[SM] Encountered fatal error parsing file \"%s\"", config);
const char *err_msg = textparsers->GetSMCErrorString(err);
if (err_msg)
{
g_Logger.LogError("[SM] Parse error encountered: \"%s\"", err_msg);
}
}
LoadPluginsFromDir(basedir, NULL);
}
void CPluginManager::LoadPluginsFromDir(const char *basedir, const char *localpath)
{
char base_path[PLATFORM_MAX_PATH];
/* Form the current path to start reading from */
if (localpath == NULL)
{
g_LibSys.PathFormat(base_path, sizeof(base_path), "%s", basedir);
} else {
g_LibSys.PathFormat(base_path, sizeof(base_path), "%s/%s", basedir, localpath);
}
IDirectory *dir = g_LibSys.OpenDirectory(base_path);
if (!dir)
{
char error[256];
g_LibSys.GetPlatformError(error, sizeof(error));
g_Logger.LogError("[SM] Failure reading from plugins path: %s", localpath);
g_Logger.LogError("[SM] Platform returned error: %s", error);
return;
}
while (dir->MoreFiles())
{
if (dir->IsEntryDirectory()
&& (strcmp(dir->GetEntryName(), ".") != 0)
&& (strcmp(dir->GetEntryName(), "..") != 0)
&& (strcmp(dir->GetEntryName(), "disabled") != 0)
&& (strcmp(dir->GetEntryName(), "optional") != 0))
{
char new_local[PLATFORM_MAX_PATH];
if (localpath == NULL)
{
/* If no path yet, don't add a former slash */
snprintf(new_local, sizeof(new_local), "%s", dir->GetEntryName());
} else {
g_LibSys.PathFormat(new_local, sizeof(new_local), "%s/%s", localpath, dir->GetEntryName());
}
LoadPluginsFromDir(basedir, new_local);
} else if (dir->IsEntryFile()) {
const char *name = dir->GetEntryName();
size_t len = strlen(name);
if (len >= 4
&& strcmp(&name[len-4], ".smx") == 0)
{
/* If the filename matches, load the plugin */
char plugin[PLATFORM_MAX_PATH];
if (localpath == NULL)
{
snprintf(plugin, sizeof(plugin), "%s", name);
} else {
g_LibSys.PathFormat(plugin, sizeof(plugin), "%s/%s", localpath, name);
}
LoadAutoPlugin(plugin);
}
}
dir->NextEntry();
}
g_LibSys.CloseDirectory(dir);
}
//well i have discovered that gabe newell is very fat, so i wrote this comment now
LoadRes CPluginManager::_LoadPlugin(CPlugin **_plugin, const char *path, bool debug, PluginType type, char error[], size_t maxlength)
{
bool no_load = false;
PluginSettings *pset;
unsigned int setcount = m_PluginInfo.GetSettingsNum();
for (unsigned int i=0; i<setcount; i++)
{
if ((pset = m_PluginInfo.GetSettingsIfMatch(i, path)) == NULL)
{
continue;
}
if (pset->blockload_val)
{
no_load = true;
break;
}
}
/**
* Does this plugin already exist?
*/
CPlugin *pPlugin;
if (sm_trie_retrieve(m_LoadLookup, path, (void **)&pPlugin))
{
/* Check to see if we should try reloading it */
if (pPlugin->GetStatus() == Plugin_BadLoad
|| pPlugin->GetStatus() == Plugin_Error
|| pPlugin->GetStatus() == Plugin_Failed
|| no_load)
{
UnloadPlugin(pPlugin);
} else {
if (_plugin)
{
*_plugin = pPlugin;
}
return LoadRes_AlreadyLoaded;
}
}
if (no_load)
{
return LoadRes_NeverLoad;
}
pPlugin = CPlugin::CreatePlugin(path, error, maxlength);
assert(pPlugin != NULL);
pPlugin->m_type = PluginType_MapUpdated;
ICompilation *co = NULL;
if (pPlugin->m_status == Plugin_Uncompiled)
{
co = pPlugin->StartMyCompile(g_pVM);
}
for (unsigned int i=0; i<setcount; i++)
{
if ((pset=m_PluginInfo.GetSettingsIfMatch(i, path)) == NULL)
{
continue;
}
pPlugin->m_type = pset->type_val;
if (co)
{
for (unsigned int j=0; j<pset->opts_num; j++)
{
const char *key, *val;
m_PluginInfo.GetOptionsForPlugin(pset, j, &key, &val);
if (!key || !val)
{
continue;
}
if (!g_pVM->SetCompilationOption(co, key, val))
{
if (error)
{
snprintf(error, maxlength, "Unable to set JIT option (key \"%s\") (value \"%s\")", key, val);
}
pPlugin->CancelMyCompile();
co = NULL;
break;
}
}
}
}
/* Do the actual compiling */
if (co)
{
pPlugin->FinishMyCompile(error, maxlength);
co = NULL;
}
/* Get the status */
if (pPlugin->GetStatus() == Plugin_Created)
{
AddCoreNativesToPlugin(pPlugin);
pPlugin->InitIdentity();
if (pPlugin->Call_AskPluginLoad(error, maxlength))
{
/* Autoload any modules */
LoadOrRequireExtensions(pPlugin, 1, error, maxlength);
} else {
pPlugin->SetErrorState(Plugin_Failed, "%s", error);
}
}
/* Save the time stamp */
time_t t = pPlugin->GetFileTimeStamp();
pPlugin->SetTimeStamp(t);
if (_plugin)
{
*_plugin = pPlugin;
}
return (pPlugin->GetStatus() == Plugin_Loaded) ? LoadRes_Successful : LoadRes_Failure;
}
IPlugin *CPluginManager::LoadPlugin(const char *path, bool debug, PluginType type, char error[], size_t maxlength, bool *wasloaded)
{
CPlugin *pl;
LoadRes res;
*wasloaded = false;
if ((res=_LoadPlugin(&pl, path, debug, type, error, maxlength)) == LoadRes_Failure)
{
delete pl;
return NULL;
}
if (res == LoadRes_AlreadyLoaded)
{
*wasloaded = true;
return pl;
}
if (res == LoadRes_NeverLoad)
{
UTIL_Format(error, maxlength, "This plugin is blocked from loading (see plugin_settings.cfg)");
return NULL;
}
AddPlugin(pl);
/* Run second pass if we need to */
if (IsLateLoadTime() && pl->GetStatus() == Plugin_Loaded)
{
if (!RunSecondPass(pl, error, maxlength))
{
UnloadPlugin(pl);
return NULL;
}
pl->Call_OnAllPluginsLoaded();
}
return pl;
}
void CPluginManager::LoadAutoPlugin(const char *plugin)
{
CPlugin *pl = NULL;
LoadRes res;
char error[255] = "Unknown error";
if ((res=_LoadPlugin(&pl, plugin, false, PluginType_MapUpdated, error, sizeof(error))) == LoadRes_Failure)
{
g_Logger.LogError("[SM] Failed to load plugin \"%s\": %s", plugin, error);
pl->SetErrorState(Plugin_Failed, "%s", error);
}
if (res == LoadRes_Successful)
{
AddPlugin(pl);
}
}
void CPluginManager::AddPlugin(CPlugin *pPlugin)
{
List<IPluginsListener *>::iterator iter;
IPluginsListener *pListener;
for (iter=m_listeners.begin(); iter!=m_listeners.end(); iter++)
{
pListener = (*iter);
pListener->OnPluginCreated(pPlugin);
}
m_plugins.push_back(pPlugin);
sm_trie_insert(m_LoadLookup, pPlugin->m_filename, pPlugin);
}
void CPluginManager::LoadAll_SecondPass()
{
List<CPlugin *>::iterator iter;
CPlugin *pPlugin;
char error[256];
for (iter=m_plugins.begin(); iter!=m_plugins.end(); iter++)
{
pPlugin = (*iter);
if (pPlugin->GetStatus() == Plugin_Loaded)
{
error[0] = '\0';
if (!RunSecondPass(pPlugin, error, sizeof(error)))
{
g_Logger.LogError("[SM] Unable to load plugin \"%s\": %s", pPlugin->GetFilename(), error);
pPlugin->SetErrorState(Plugin_Failed, "%s", error);
}
}
}
m_AllPluginsLoaded = true;
}
bool CPluginManager::FindOrRequirePluginDeps(CPlugin *pPlugin, char *error, size_t maxlength)
{
struct _pl
{
cell_t name;
cell_t file;
cell_t required;
} *pl;
IPluginContext *pBase = pPlugin->GetBaseContext();
uint32_t num = pBase->GetPubVarsNum();
sp_pubvar_t *pubvar;
char *name, *file;
char pathfile[PLATFORM_MAX_PATH];
for (uint32_t i=0; i<num; i++)
{
if (pBase->GetPubvarByIndex(i, &pubvar) != SP_ERROR_NONE)
{
continue;
}
if (strncmp(pubvar->name, "__pl_", 5) == 0)
{
pl = (_pl *)pubvar->offs;
if (pBase->LocalToString(pl->file, &file) != SP_ERROR_NONE)
{
continue;
}
if (pBase->LocalToString(pl->name, &name) != SP_ERROR_NONE)
{
continue;
}
g_LibSys.GetFileFromPath(pathfile, sizeof(pathfile), pPlugin->GetFilename());
if (strcmp(pathfile, file) == 0)
{
continue;
}
if (pl->required == false)
{
IPluginFunction *pFunc;
char buffer[64];
UTIL_Format(buffer, sizeof(buffer), "__pl_%s_SetNTVOptional", &pubvar->name[5]);
if ((pFunc=pBase->GetFunctionByName(buffer)))
{
cell_t res;
pFunc->Execute(&res);
if (pPlugin->GetContext()->n_err != SP_ERROR_NONE)
{
if (error)
{
snprintf(error, maxlength, "Fatal error during initializing plugin load");
}
return false;
}
}
} else {
/* Check that we aren't registering the same library twice */
if (pPlugin->m_RequiredLibs.find(name) == pPlugin->m_RequiredLibs.end())
{
pPlugin->m_RequiredLibs.push_back(name);
} else {
continue;
}
List<CPlugin *>::iterator iter;
CPlugin *pl;
bool found = false;
for (iter=m_plugins.begin(); iter!=m_plugins.end(); iter++)
{
pl = (*iter);
if (pl->m_Libraries.find(name) != pl->m_Libraries.end())
{
found = true;
break;
}
}
if (!found)
{
if (error)
{
snprintf(error, maxlength, "Could not find required plugin \"%s\"", name);
}
return false;
}
}
}
}
return true;
}
bool CPluginManager::LoadOrRequireExtensions(CPlugin *pPlugin, unsigned int pass, char *error, size_t maxlength)
{
/* Find any extensions this plugin needs */
struct _ext
{
cell_t name;
cell_t file;
cell_t autoload;
cell_t required;
} *ext;
IPluginContext *pBase = pPlugin->GetBaseContext();
uint32_t num = pBase->GetPubVarsNum();
sp_pubvar_t *pubvar;
IExtension *pExt;
char path[PLATFORM_MAX_PATH];
char *file, *name;
for (uint32_t i=0; i<num; i++)
{
if (pBase->GetPubvarByIndex(i, &pubvar) != SP_ERROR_NONE)
{
continue;
}
if (strncmp(pubvar->name, "__ext_", 6) == 0)
{
ext = (_ext *)pubvar->offs;
if (!ext->required && !ext->autoload)
{
continue;
}
if (pBase->LocalToString(ext->file, &file) != SP_ERROR_NONE)
{
continue;
}
if (pBase->LocalToString(ext->name, &name) != SP_ERROR_NONE)
{
continue;
}
if (pass == 1)
{
/* Attempt to auto-load if necessary */
if (ext->autoload)
{
g_LibSys.PathFormat(path, PLATFORM_MAX_PATH, "%s", file);
g_Extensions.LoadAutoExtension(path);
}
} else if (pass == 2) {
/* Is this required? */
if (ext->required)
{
g_LibSys.PathFormat(path, PLATFORM_MAX_PATH, "%s", file);
if ((pExt = g_Extensions.FindExtensionByFile(path)) == NULL)
{
pExt = g_Extensions.FindExtensionByName(name);
}
/* :TODO: should we bind to unloaded extensions?
* Currently the extension manager will ignore this.
*/
if (!pExt || !pExt->IsRunning(NULL, 0))
{
if (error)
{
snprintf(error, maxlength, "Required extension \"%s\" file(\"%s\") not running", name, file);
}
return false;
} else {
g_Extensions.BindChildPlugin(pExt, pPlugin);
}
}
}
}
}
return true;
}
bool CPluginManager::RunSecondPass(CPlugin *pPlugin, char *error, size_t maxlength)
{
/* Second pass for extension requirements */
if (!LoadOrRequireExtensions(pPlugin, 2, error, maxlength))
{
return false;
}
/* Bind all extra natives */
g_Extensions.BindAllNativesToPlugin(pPlugin);
AddFakeNativesToPlugin(pPlugin);
if (!FindOrRequirePluginDeps(pPlugin, error, maxlength))
{
return false;
}
/* Find any unbound natives
* Right now, these are not allowed
*/
IPluginContext *pContext = pPlugin->GetBaseContext();
uint32_t num = pContext->GetNativesNum();
sp_native_t *native;
for (unsigned int i=0; i<num; i++)
{
if (pContext->GetNativeByIndex(i, &native) != SP_ERROR_NONE)
{
break;
}
if (native->status == SP_NATIVE_UNBOUND
&& native->name[0] != '@'
&& !(native->flags & SP_NTVFLAG_OPTIONAL))
{
if (error)
{
snprintf(error, maxlength, "Native \"%s\" was not found.", native->name);
}
return false;
}
}
/* Finish by telling all listeners */
List<IPluginsListener *>::iterator iter;
IPluginsListener *pListener;
for (iter=m_listeners.begin(); iter!=m_listeners.end(); iter++)
{
pListener = (*iter);
pListener->OnPluginLoaded(pPlugin);
}
/* Tell this plugin to finish initializing itself */
pPlugin->Call_OnPluginStart();
/* Now, if we have fake natives, go through all plugins that might need rebinding */
if (pPlugin->GetStatus() <= Plugin_Paused && pPlugin->m_fakeNatives.size())
{
List<CPlugin *>::iterator pl_iter;
CPlugin *pOther;
for (pl_iter = m_plugins.begin();
pl_iter != m_plugins.end();
pl_iter++)
{
pOther = (*pl_iter);
if ((pOther->GetStatus() == Plugin_Error
&& (pOther->m_FakeNativesMissing || pOther->m_LibraryMissing))
|| pOther->m_FakeNativesMissing)
{
TryRefreshDependencies(pOther);
}
}
}
/* Go through our libraries and tell other plugins they're added */
List<String>::iterator s_iter;
for (s_iter = pPlugin->m_Libraries.begin();
s_iter != pPlugin->m_Libraries.end();
s_iter++)
{
OnLibraryAction((*s_iter).c_str(), false);
}
return true;
}
void CPluginManager::AddCoreNativesToPlugin(CPlugin *pPlugin)
{
IPluginContext *pContext = pPlugin->GetBaseContext();
uint32_t natives = pContext->GetNativesNum();
sp_native_t *native;
SPVM_NATIVE_FUNC pfn;
for (uint32_t i=0; i<natives; i++)
{
if (pContext->GetNativeByIndex(i, &native) != SP_ERROR_NONE)
{
continue;
}
if (native->status == SP_NATIVE_BOUND)
{
continue;
}
if (!sm_trie_retrieve(m_pCoreNatives, native->name, (void **)&pfn))
{
continue;
}
pContext->BindNativeToIndex(i, pfn);
}
}
void CPluginManager::TryRefreshDependencies(CPlugin *pPlugin)
{
assert(pPlugin->GetBaseContext() != NULL);
AddFakeNativesToPlugin(pPlugin);
List<String>::iterator lib_iter;
List<String>::iterator req_iter;
List<CPlugin *>::iterator pl_iter;
CPlugin *pl;
for (req_iter=pPlugin->m_RequiredLibs.begin(); req_iter!=pPlugin->m_RequiredLibs.end(); req_iter++)
{
bool found = false;
for (pl_iter=m_plugins.begin(); pl_iter!=m_plugins.end(); pl_iter++)
{
pl = (*pl_iter);
for (lib_iter=pl->m_Libraries.begin(); lib_iter!=pl->m_Libraries.end(); lib_iter++)
{
if ((*req_iter) == (*lib_iter))
{
found = true;
}
}
}
if (!found)
{
pPlugin->SetErrorState(Plugin_Error, "Library not found: %s", (*req_iter).c_str());
return;
}
}
/* Find any unbound natives
* Right now, these are not allowed
*/
IPluginContext *pContext = pPlugin->GetBaseContext();
uint32_t num = pContext->GetNativesNum();
sp_native_t *native;
for (unsigned int i=0; i<num; i++)
{
if (pContext->GetNativeByIndex(i, &native) != SP_ERROR_NONE)
{
break;
}
if (native->status == SP_NATIVE_UNBOUND && !(native->flags & SP_NTVFLAG_OPTIONAL))
{
pPlugin->SetErrorState(Plugin_Error, "Native not found: %s", native->name);
return;
}
}
if (pPlugin->GetStatus() == Plugin_Error)
{
/* If we got here, all natives are okay again! */
pPlugin->m_status = Plugin_Running;
if ((pPlugin->m_ctx.ctx->flags & SPFLAG_PLUGIN_PAUSED) == SPFLAG_PLUGIN_PAUSED)
{
pPlugin->m_ctx.ctx->flags &= ~SPFLAG_PLUGIN_PAUSED;
_SetPauseState(pPlugin, false);
}
}
}
void CPluginManager::AddFakeNativesToPlugin(CPlugin *pPlugin)
{
IPluginContext *pContext = pPlugin->GetBaseContext();
sp_nativeinfo_t native;
List<FakeNative *>::iterator iter;
FakeNative *pNative;
sp_context_t *ctx;
for (iter = m_Natives.begin(); iter != m_Natives.end(); iter++)
{
pNative = (*iter);
ctx = pNative->ctx->GetContext();
if ((ctx->flags & SPFLAG_PLUGIN_PAUSED) == SPFLAG_PLUGIN_PAUSED)
{
/* Ignore natives in paused plugins */
continue;
}
native.name = pNative->name.c_str();
native.func = pNative->func;
if (pContext->BindNative(&native) == SP_ERROR_NONE)
{
uint32_t idx;
pContext->FindNativeByName(native.name, &idx);
if (pPlugin->GetContext()->natives[idx].flags & SP_NTVFLAG_OPTIONAL)
{
WeakNative wkn(pPlugin, idx);
GetPluginByCtx(ctx)->m_WeakNatives.push_back(wkn);
continue;
}
/* Add us as a dependency, but we're careful not to do this circularly! */
if (pNative->ctx != pContext)
{
CPlugin *pOther = GetPluginByCtx(ctx);
if (pOther->m_dependents.find(pPlugin) == pOther->m_dependents.end())
{
pOther->m_dependents.push_back(pPlugin);
}
if (pPlugin->m_dependsOn.find(pOther) == pPlugin->m_dependsOn.end())
{
pPlugin->m_dependsOn.push_back(pOther);
}
}
}
}
}
bool CPluginManager::UnloadPlugin(IPlugin *plugin)
{
CPlugin *pPlugin = (CPlugin *)plugin;
/* This prevents removal during insertion or anything else weird */
if (m_plugins.find(pPlugin) == m_plugins.end())
{
return false;
}
/* Remove us from the lookup table and linked list */
m_plugins.remove(pPlugin);
sm_trie_delete(m_LoadLookup, pPlugin->m_filename);
/* Go through our libraries and tell other plugins they're gone */
List<String>::iterator s_iter;
for (s_iter = pPlugin->m_Libraries.begin();
s_iter != pPlugin->m_Libraries.end();
s_iter++)
{
OnLibraryAction((*s_iter).c_str(), true);
}
/* Go through all dependent plugins and tell them this plugin is now gone */
List<CPlugin *>::iterator pl_iter;
CPlugin *pOther;
for (pl_iter = pPlugin->m_dependents.begin();
pl_iter != pPlugin->m_dependents.end();
pl_iter++)
{
pOther = (*pl_iter);
pOther->DependencyDropped(pPlugin);
}
/* Tell everyone we depend on that we no longer exist */
for (pl_iter = pPlugin->m_dependsOn.begin();
pl_iter != pPlugin->m_dependsOn.end();
pl_iter++)
{
pOther = (*pl_iter);
pOther->m_dependents.remove(pPlugin);
}
/* Remove weak references to us */
for (pl_iter = m_plugins.begin();
pl_iter != m_plugins.end();
pl_iter++)
{
pOther = (*pl_iter);
List<WeakNative>::iterator wk_iter = pOther->m_WeakNatives.begin();
while (wk_iter != pOther->m_WeakNatives.end())
{
if ((*wk_iter).pl == pPlugin)
{
wk_iter = pOther->m_WeakNatives.erase(wk_iter);
} else {
wk_iter++;
}
}
}
List<IPluginsListener *>::iterator iter;
IPluginsListener *pListener;
if (pPlugin->GetStatus() <= Plugin_Error)
{
/* Notify listeners of unloading */
for (iter=m_listeners.begin(); iter!=m_listeners.end(); iter++)
{
pListener = (*iter);
pListener->OnPluginUnloaded(pPlugin);
}
/* Notify plugin */
pPlugin->Call_OnPluginEnd();
}
/* Unbound weak natives */
List<WeakNative>::iterator wk_iter;
for (wk_iter=pPlugin->m_WeakNatives.begin(); wk_iter!=pPlugin->m_WeakNatives.end(); wk_iter++)
{
WeakNative & wkn = (*wk_iter);
sp_context_t *ctx = wkn.pl->GetContext();
ctx->natives[wkn.idx].status = SP_NATIVE_UNBOUND;
wkn.pl->m_FakeNativesMissing = true;
}
/* Remove all of our native functions */
List<FakeNative *>::iterator fn_iter;
FakeNative *pNative;
for (fn_iter = pPlugin->m_fakeNatives.begin();
fn_iter != pPlugin->m_fakeNatives.end();
fn_iter++)
{
pNative = (*fn_iter);
m_Natives.remove(pNative);
sm_trie_delete(m_pNativeLookup, pNative->name.c_str());
g_pVM->DestroyFakeNative(pNative->func);
delete pNative;
}
for (iter=m_listeners.begin(); iter!=m_listeners.end(); iter++)
{
/* Notify listeners of destruction */
pListener = (*iter);
pListener->OnPluginDestroyed(pPlugin);
}
/* Tell the plugin to delete itself */
delete pPlugin;
return true;
}
IPlugin *CPluginManager::FindPluginByContext(const sp_context_t *ctx)
{
IPlugin *pl = (IPlugin *)ctx->user[SM_CONTEXTVAR_MYSELF];
return pl;
}
unsigned int CPluginManager::GetPluginCount()
{
return m_plugins.size();
}
void CPluginManager::AddPluginsListener(IPluginsListener *listener)
{
m_listeners.push_back(listener);
}
void CPluginManager::RemovePluginsListener(IPluginsListener *listener)
{
m_listeners.remove(listener);
}
IPluginIterator *CPluginManager::GetPluginIterator()
{
if (m_iters.empty())
{
return new CPluginIterator(&m_plugins);
} else {
CPluginIterator *iter = m_iters.front();
m_iters.pop();
iter->Reset();
return iter;
}
}
void CPluginManager::ReleaseIterator(CPluginIterator *iter)
{
m_iters.push(iter);
}
bool CPluginManager::TestAliasMatch(const char *alias, const char *localpath)
{
/* As an optimization, we do not call strlen, but compute the length in the first pass */
size_t alias_len = 0;
size_t local_len = 0;
const char *ptr = alias;
unsigned int alias_explicit_paths = 0;
unsigned int alias_path_end = 0;
while (*ptr != '\0')
{
if (*ptr == '\\' || *ptr == '/')
{
alias_explicit_paths++;
alias_path_end = alias_len;
}
alias_len++;
ptr++;
}
if (alias_explicit_paths && alias_path_end == alias_len - 1)
{
/* Trailing slash is totally invalid here */
return false;
}
ptr = localpath;
unsigned int local_explicit_paths = 0;
unsigned int local_path_end = 0;
while (*ptr != '\0')
{
if (*ptr == '\\' || *ptr == '/')
{
local_explicit_paths++;
local_path_end = local_len;
}
local_len++;
ptr++;
}
/* If the alias has more explicit paths than the real path,
* no match will be possible.
*/
if (alias_explicit_paths > local_explicit_paths)
{
return false;
}
if (alias_explicit_paths)
{
/* We need to find if the paths match now. For example, these should all match:
* csdm csdm
* csdm optional/csdm
* csdm/ban optional/crab/csdm/ban
*/
const char *aliasptr = alias;
const char *localptr = localpath;
bool match = true;
do
{
if (*aliasptr != *localptr)
{
/* We have to knock one path off */
local_explicit_paths--;
if (alias_explicit_paths > local_explicit_paths)
{
/* Skip out if we're gonna have an impossible match */
return false;
}
/* Eat up localptr tokens until we get a result */
while (((localptr - localpath) < (int)local_path_end)
&& *localptr != '/'
&& *localptr != '\\')
{
localptr++;
}
/* Check if we hit the end of our searchable area.
* This probably isn't possible because of the path
* count check, but it's a good idea anyway.
*/
if ((localptr - localpath) >= (int)local_path_end)
{
return false;
} else {
/* Consume the slash token */
localptr++;
}
/* Reset the alias pointer so we can continue consuming */
aliasptr = alias;
match = false;
continue;
}
/* Note:
* This is safe because if localptr terminates early, aliasptr will too
*/
do
{
/* We should never reach the end of the string because of this check. */
bool aliasend = (aliasptr - alias) > (int)alias_path_end;
bool localend = (localptr - localpath) > (int)local_path_end;
if (aliasend || localend)
{
if (aliasend && localend)
{
/* we matched, and we can break out now */
match = true;
break;
}
/* Otherwise, we've hit the end somehow and rest won't match up. Break out. */
match = false;
break;
}
/* If we got here, it's safe to compare the next two tokens */
if (*localptr != *aliasptr)
{
match = false;
break;
}
localptr++;
aliasptr++;
} while (true);
} while (!match);
}
/* If we got here, it's time to compare filenames */
const char *aliasptr = alias;
const char *localptr = localpath;
if (alias_explicit_paths)
{
aliasptr = &alias[alias_path_end + 1];
}
if (local_explicit_paths)
{
localptr = &localpath[local_path_end + 1];
}
while (true)
{
if (*aliasptr == '*')
{
/* First, see if this is the last character */
if ((unsigned)(aliasptr - alias) == alias_len - 1)
{
/* If so, there's no need to match anything else */
return true;
}
/* Otherwise, we need to search for an appropriate matching sequence in local.
* Note that we only need to search up to the next asterisk.
*/
aliasptr++;
bool match = true;
const char *local_orig = localptr;
do
{
match = true;
while (*aliasptr != '\0' && *aliasptr != '*')
{
/* Since aliasptr is never '\0', localptr hitting the end will fail */
if (*aliasptr != *localptr)
{
match = false;
break;
}
aliasptr++;
localptr++;
}
if (!match)
{
/* If we didn't get a match, we need to advance the search stream.
* This will let us skip tokens while still searching for another match.
*/
localptr = ++local_orig;
/* Make sure we don't go out of bounds */
if (*localptr == '\0')
{
break;
}
}
} while (!match);
if (!match)
{
return false;
} else {
/* If we got a match, move on to the next token */
continue;
}
} else if (*aliasptr == '\0') {
if (*localptr == '\0'
||
strcmp(localptr, ".smx") == 0)
{
return true;
} else {
return false;
}
} else if (*aliasptr != *localptr) {
return false;
}
aliasptr++;
localptr++;
}
return true;
}
bool CPluginManager::IsLateLoadTime() const
{
return (m_AllPluginsLoaded || !g_SourceMod.IsMapLoading());
}
void CPluginManager::OnSourceModAllInitialized()
{
m_MyIdent = g_ShareSys.CreateCoreIdentity();
HandleAccess sec;
g_HandleSys.InitAccessDefaults(NULL, &sec);
sec.access[HandleAccess_Delete] = HANDLE_RESTRICT_IDENTITY;
sec.access[HandleAccess_Clone] = HANDLE_RESTRICT_IDENTITY;
g_PluginType = g_HandleSys.CreateType("Plugin", this, 0, NULL, &sec, m_MyIdent, NULL);
g_PluginIdent = g_ShareSys.CreateIdentType("PLUGIN");
g_RootMenu.AddRootConsoleCommand("plugins", "Manage Plugins", this);
g_ShareSys.AddInterface(NULL, this);
}
void CPluginManager::OnSourceModShutdown()
{
g_RootMenu.RemoveRootConsoleCommand("plugins", this);
List<CPlugin *>::iterator iter;
while ( (iter = m_plugins.begin()) != m_plugins.end() )
{
UnloadPlugin((*iter));
}
g_HandleSys.RemoveType(g_PluginType, m_MyIdent);
g_ShareSys.DestroyIdentType(g_PluginIdent);
g_ShareSys.DestroyIdentity(m_MyIdent);
}
void CPluginManager::OnHandleDestroy(HandleType_t type, void *object)
{
/* We don't care about the internal object, actually */
}
void CPluginManager::RegisterNativesFromCore(sp_nativeinfo_t *natives)
{
for (unsigned int i = 0; natives[i].func != NULL; i++)
{
sm_trie_insert(m_pCoreNatives, natives[i].name, (void *)natives[i].func);
}
}
IPlugin *CPluginManager::PluginFromHandle(Handle_t handle, HandleError *err)
{
IPlugin *pPlugin;
HandleError _err;
HandleSecurity sec;
sec.pOwner = NULL;
sec.pIdentity = m_MyIdent;
if ((_err=g_HandleSys.ReadHandle(handle, g_PluginType, &sec, (void **)&pPlugin)) != HandleError_None)
{
pPlugin = NULL;
}
if (err)
{
*err = _err;
}
return pPlugin;
}
CPlugin *CPluginManager::GetPluginByOrder(int num)
{
if (num < 1 || num > (int)GetPluginCount())
{
return NULL;
}
CPlugin *pl;
int id = 1;
IPluginIterator *iter = GetPluginIterator();
for (; iter->MorePlugins() && id<num; iter->NextPlugin(), id++) {}
pl = (CPlugin *)(iter->GetPlugin());
iter->Release();
return pl;
}
const char *CPluginManager::GetStatusText(PluginStatus st)
{
switch (st)
{
case Plugin_Running:
return "Running";
case Plugin_Paused:
return "Paused";
case Plugin_Error:
return "Error";
case Plugin_Uncompiled:
return "Uncompiled";
case Plugin_BadLoad:
return "Bad Load";
case Plugin_Failed:
return "Failed";
default:
assert(false);
return "-";
}
}
void CPluginManager::OnRootConsoleCommand(const char *command, unsigned int argcount)
{
if (argcount >= 3)
{
const char *cmd = g_RootMenu.GetArgument(2);
if (strcmp(cmd, "list") == 0)
{
char buffer[256];
unsigned int id = 1;
int plnum = GetPluginCount();
if (!plnum)
{
g_RootMenu.ConsolePrint("[SM] No plugins loaded");
return;
} else {
g_RootMenu.ConsolePrint("[SM] Listing %d plugin%s:", GetPluginCount(), (plnum > 1) ? "s" : "");
}
IPluginIterator *iter = GetPluginIterator();
for (; iter->MorePlugins(); iter->NextPlugin(), id++)
{
IPlugin *pl = iter->GetPlugin();
assert(pl->GetStatus() != Plugin_Created);
int len = 0;
const sm_plugininfo_t *info = pl->GetPublicInfo();
if (pl->GetStatus() != Plugin_Running)
{
len += UTIL_Format(buffer, sizeof(buffer), " %02d <%s>", id, GetStatusText(pl->GetStatus()));
} else {
len += UTIL_Format(buffer, sizeof(buffer), " %02d", id);
}
len += UTIL_Format(&buffer[len], sizeof(buffer)-len, " \"%s\"", (IS_STR_FILLED(info->name)) ? info->name : pl->GetFilename());
if (IS_STR_FILLED(info->version))
{
len += UTIL_Format(&buffer[len], sizeof(buffer)-len, " (%s)", info->version);
}
if (IS_STR_FILLED(info->author))
{
UTIL_Format(&buffer[len], sizeof(buffer)-len, " by %s", info->author);
}
g_RootMenu.ConsolePrint("%s", buffer);
}
iter->Release();
return;
} else if (strcmp(cmd, "load") == 0) {
if (argcount < 4)
{
g_RootMenu.ConsolePrint("[SM] Usage: sm plugins load <file>");
return;
}
char error[128];
bool wasloaded;
const char *filename = g_RootMenu.GetArgument(3);
char pluginfile[256];
const char *ext = g_LibSys.GetFileExtension(filename) ? "" : ".smx";
UTIL_Format(pluginfile, sizeof(pluginfile), "%s%s", filename, ext);
IPlugin *pl = LoadPlugin(pluginfile, false, PluginType_MapUpdated, error, sizeof(error), &wasloaded);
if (wasloaded)
{
g_RootMenu.ConsolePrint("[SM] Plugin %s is already loaded.", pluginfile);
return;
}
if (pl)
{
g_RootMenu.ConsolePrint("[SM] Loaded plugin %s successfully.", pluginfile);
} else {
g_RootMenu.ConsolePrint("[SM] Plugin %s failed to load: %s.", pluginfile, error);
}
return;
} else if (strcmp(cmd, "unload") == 0) {
if (argcount < 4)
{
g_RootMenu.ConsolePrint("[SM] Usage: sm plugins unload <#|file>");
return;
}
CPlugin *pl;
char *end;
const char *arg = g_RootMenu.GetArgument(3);
int id = strtol(arg, &end, 10);
if (*end == '\0')
{
pl = GetPluginByOrder(id);
if (!pl)
{
g_RootMenu.ConsolePrint("[SM] Plugin index %d not found.", id);
return;
}
} else {
char pluginfile[256];
const char *ext = g_LibSys.GetFileExtension(arg) ? "" : ".smx";
UTIL_Format(pluginfile, sizeof(pluginfile), "%s%s", arg, ext);
if (!sm_trie_retrieve(m_LoadLookup, pluginfile, (void **)&pl))
{
g_RootMenu.ConsolePrint("[SM] Plugin %s is not loaded.", pluginfile);
return;
}
}
char name[PLATFORM_MAX_PATH];
const sm_plugininfo_t *info = pl->GetPublicInfo();
strcpy(name, (IS_STR_FILLED(info->name)) ? info->name : pl->GetFilename());
if (UnloadPlugin(pl))
{
g_RootMenu.ConsolePrint("[SM] Plugin %s unloaded successfully.", name);
} else {
g_RootMenu.ConsolePrint("[SM] Failed to unload plugin %s.", name);
}
return;
} else if (strcmp(cmd, "info") == 0) {
if (argcount < 4)
{
g_RootMenu.ConsolePrint("[SM] Usage: sm plugins info <#>");
return;
}
int num = atoi(g_RootMenu.GetArgument(3));
if (num < 1 || num > (int)GetPluginCount())
{
g_RootMenu.ConsolePrint("[SM] Plugin index not found.");
return;
}
CPlugin *pl = GetPluginByOrder(num);
const sm_plugininfo_t *info = pl->GetPublicInfo();
g_RootMenu.ConsolePrint(" Filename: %s", pl->GetFilename());
if (pl->GetStatus() <= Plugin_Error)
{
if (IS_STR_FILLED(info->name))
{
if (IS_STR_FILLED(info->description))
{
g_RootMenu.ConsolePrint(" Title: %s (%s)", info->name, info->description);
} else {
g_RootMenu.ConsolePrint(" Title: %s", info->name);
}
}
if (IS_STR_FILLED(info->author))
{
g_RootMenu.ConsolePrint(" Author: %s", info->author);
}
if (IS_STR_FILLED(info->version))
{
g_RootMenu.ConsolePrint(" Version: %s", info->version);
}
if (IS_STR_FILLED(info->url))
{
g_RootMenu.ConsolePrint(" URL: %s", info->url);
}
if (pl->GetStatus() == Plugin_Error)
{
g_RootMenu.ConsolePrint(" Error: %s", pl->m_errormsg);
} else {
g_RootMenu.ConsolePrint(" Debugging: %s", pl->IsDebugging() ? "Yes" : "No");
g_RootMenu.ConsolePrint(" Running: %s", pl->GetStatus() == Plugin_Running ? "Yes" : "No");
const char *typestr = "";
switch (pl->GetType())
{
case PluginType_MapUpdated:
typestr = "Map Change if Updated";
break;
case PluginType_MapOnly:
typestr = "Map Change";
break;
case PluginType_Private:
case PluginType_Global:
typestr = "Never";
break;
}
g_RootMenu.ConsolePrint(" Reloads: %s", typestr);
}
} else {
g_RootMenu.ConsolePrint(" Load error: %s", pl->m_errormsg);
g_RootMenu.ConsolePrint(" File info: (title \"%s\") (version \"%s\")",
info->name ? info->name : "<none>",
info->version ? info->version : "<none>");
if (IS_STR_FILLED(info->url))
{
g_RootMenu.ConsolePrint(" File URL: %s", info->url);
}
}
return;
} else if (strcmp(cmd, "debug") == 0) {
if (argcount < 5)
{
g_RootMenu.ConsolePrint("[SM] Usage: sm plugins debug <#> [on|off]");
return;
}
int num = atoi(g_RootMenu.GetArgument(3));
if (num < 1 || num > (int)GetPluginCount())
{
g_RootMenu.ConsolePrint("[SM] Plugin index not found.");
return;
}
int res;
const char *mode = g_RootMenu.GetArgument(4);
if ((res=strcmp("on", mode)) && strcmp("off", mode))
{
g_RootMenu.ConsolePrint("[SM] The only possible options are \"on\" and \"off.\"");
return;
}
bool debug;
if (!res)
{
debug = true;
} else {
debug = false;
}
CPlugin *pl = GetPluginByOrder(num);
if (debug && pl->IsDebugging())
{
g_RootMenu.ConsolePrint("[SM] This plugin is already in debug mode.");
return;
} else if (!debug && !pl->IsDebugging()) {
g_RootMenu.ConsolePrint("[SM] Debug mode is already disabled in this plugin.");
return;
}
char error[256];
if (pl->ToggleDebugMode(debug, error, sizeof(error)))
{
g_RootMenu.ConsolePrint("[SM] Successfully toggled debug mode on plugin %s.", pl->GetFilename());
return;
} else {
g_RootMenu.ConsolePrint("[SM] Could not toggle debug mode on plugin %s.", pl->GetFilename());
g_RootMenu.ConsolePrint("[SM] Plugin returned error: %s", error);
return;
}
} else if (strcmp(cmd, "reload") == 0) {
if (argcount < 4)
{
g_RootMenu.ConsolePrint("[SM] Usage: sm plugins reload <#|file>");
return;
}
CPlugin *pl;
char *end;
const char *arg = g_RootMenu.GetArgument(3);
int id = strtol(arg, &end, 10);
if (*end == '\0')
{
pl = GetPluginByOrder(id);
if (!pl)
{
g_RootMenu.ConsolePrint("[SM] Plugin index %d not found.", id);
return;
}
} else {
char pluginfile[256];
const char *ext = g_LibSys.GetFileExtension(arg) ? "" : ".smx";
UTIL_Format(pluginfile, sizeof(pluginfile), "%s%s", arg, ext);
if (!sm_trie_retrieve(m_LoadLookup, pluginfile, (void **)&pl))
{
g_RootMenu.ConsolePrint("[SM] Plugin %s is not loaded.", pluginfile);
return;
}
}
char name[PLATFORM_MAX_PATH];
const sm_plugininfo_t *info = pl->GetPublicInfo();
strcpy(name, (IS_STR_FILLED(info->name)) ? info->name : pl->GetFilename());
if (ReloadPlugin(pl))
{
g_RootMenu.ConsolePrint("[SM] Plugin %s reloaded successfully.", name);
} else {
g_RootMenu.ConsolePrint("[SM] Failed to reload plugin %s.", name);
}
return;
}
}
/* Draw the main menu */
g_RootMenu.ConsolePrint("SourceMod Plugins Menu:");
g_RootMenu.DrawGenericOption("list", "Show loaded plugins");
g_RootMenu.DrawGenericOption("load", "Load a plugin");
g_RootMenu.DrawGenericOption("unload", "Unload a plugin");
g_RootMenu.DrawGenericOption("info", "Information about a plugin");
g_RootMenu.DrawGenericOption("debug", "Toggle debug mode on a plugin");
g_RootMenu.DrawGenericOption("reload", "Reloads a plugin");
}
bool CPluginManager::ReloadPlugin(CPlugin *pl)
{
List<CPlugin *>::iterator iter;
char filename[PLATFORM_MAX_PATH];
bool debug, wasloaded;
PluginType ptype;
IPlugin *newpl;
int id = 1;
strcpy(filename, pl->m_filename);
debug = pl->IsDebugging();
ptype = pl->GetType();
for (iter=m_plugins.begin(); iter!=m_plugins.end(); iter++, id++)
{
if ((*iter) == pl)
{
break;
}
}
if (!UnloadPlugin(pl))
{
return false;
}
if (!(newpl=LoadPlugin(filename, debug, ptype, NULL, 0, &wasloaded)))
{
return false;
}
for (iter=m_plugins.begin(); iter!=m_plugins.end(); iter++)
{
if ((*iter) == (CPlugin *)newpl)
{
m_plugins.erase(iter);
break;
}
}
int i;
for (i=1, iter=m_plugins.begin(); iter!=m_plugins.end() && i<id; iter++, i++) {}
m_plugins.insert(iter, (CPlugin *)newpl);
return true;
}
void CPluginManager::ReloadOrUnloadPlugins()
{
List<CPlugin *>::iterator iter;
List<CPlugin *> tmp_list = m_plugins;
CPlugin *pl;
time_t t;
for (iter=tmp_list.begin(); iter!=tmp_list.end(); iter++)
{
pl = (*iter);
if (pl->GetType() == PluginType_MapOnly)
{
UnloadPlugin((IPlugin *)pl);
} else if (pl->GetType() == PluginType_MapUpdated) {
t = pl->GetFileTimeStamp();
if (!t || t > pl->GetTimeStamp())
{
pl->SetTimeStamp(t);
UnloadPlugin((IPlugin *)pl);
}
}
}
}
void CPluginManager::_SetPauseState(CPlugin *pl, bool paused)
{
List<IPluginsListener *>::iterator iter;
IPluginsListener *pListener;
for (iter=m_listeners.begin(); iter!=m_listeners.end(); iter++)
{
pListener = (*iter);
pListener->OnPluginPauseChange(pl, paused);
}
}
bool CPluginManager::AddFakeNative(IPluginFunction *pFunction, const char *name, SPVM_FAKENATIVE_FUNC func)
{
if (sm_trie_retrieve(m_pNativeLookup, name, NULL))
{
return false;
}
FakeNative *pNative = new FakeNative;
pNative->func = g_pVM->CreateFakeNative(func, pNative);
if (!pNative->func)
{
delete pNative;
return false;
}
pNative->call = pFunction;
pNative->name.assign(name);
pNative->ctx = pFunction->GetParentContext();
m_Natives.push_back(pNative);
sm_trie_insert(m_pNativeLookup, name,pNative);
CPlugin *pPlugin = GetPluginByCtx(pNative->ctx->GetContext());
pPlugin->m_fakeNatives.push_back(pNative);
return true;
}
void CPluginManager::AddFunctionsToForward(const char *name, IChangeableForward *pForward)
{
List<CPlugin *>::iterator iter;
CPlugin *pPlugin;
IPluginFunction *pFunction;
for (iter = m_plugins.begin(); iter != m_plugins.end(); iter++)
{
pPlugin = (*iter);
if (pPlugin->GetStatus() <= Plugin_Paused)
{
pFunction = pPlugin->GetBaseContext()->GetFunctionByName(name);
if (pFunction)
{
pForward->AddFunction(pFunction);
}
}
}
}
CPlugin *CPluginManager::GetPluginFromIdentity(IdentityToken_t *pToken)
{
if (pToken->type != g_PluginIdent)
{
return NULL;
}
return (CPlugin *)(pToken->ptr);
}
void CPluginManager::OnLibraryAction(const char *lib, bool drop)
{
List<CPlugin *>::iterator iter;
struct _pl
{
cell_t name;
cell_t file;
cell_t required;
} *plc;
const char *name = drop ? "OnLibraryRemoved" : "OnLibraryAdded";
for (iter=m_plugins.begin();
iter!=m_plugins.end();
iter++)
{
CPlugin *pl = (*iter);
if (pl->GetStatus() != Plugin_Running)
{
continue;
}
IPluginContext *pContext = pl->GetBaseContext();
IPluginFunction *pf = pContext->GetFunctionByName(name);
if (!pf)
{
continue;
}
uint32_t num_vars = pContext->GetPubVarsNum();
for (uint32_t i=0; i<num_vars; i++)
{
sp_pubvar_t *pubvar;
if (pContext->GetPubvarByIndex(i, &pubvar) != SP_ERROR_NONE)
{
continue;
}
if (strncmp(pubvar->name, "__pl_", 5) != 0)
{
continue;
}
plc = (_pl *)pubvar->offs;
if (plc->required)
{
continue;
}
char *str;
pContext->LocalToString(plc->name, &str);
if (strcmp(str, lib) != 0)
{
continue;
}
pf->PushString(lib);
pf->Execute(NULL);
}
}
}
bool CPluginManager::LibraryExists(const char *lib)
{
List<CPlugin *>::iterator iter;
for (iter=m_plugins.begin();
iter!=m_plugins.end();
iter++)
{
CPlugin *pl = (*iter);
if (pl->GetStatus() != Plugin_Running)
{
continue;
}
List<String>::iterator s_iter;
for (s_iter = pl->m_Libraries.begin();
s_iter != pl->m_Libraries.end();
s_iter++)
{
if ((*s_iter).compare(lib) == 0)
{
return true;
}
}
}
return false;
}
void CPluginManager::AllPluginsLoaded()
{
List<CPlugin *>::iterator iter;
CPlugin *pl;
for (iter=m_plugins.begin(); iter!=m_plugins.end(); iter++)
{
pl = (*iter);
pl->Call_OnAllPluginsLoaded();
}
}
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