Variant f_constant(CStrRef name) {
if (!name.get()) return null;
const char *data = name.data();
int len = name.length();
char *colon;
if ((colon = (char*)memchr(data, ':', len)) && colon[1] == ':') {
// class constant
int classNameLen = colon - data;
char *constantName = colon + 2;
String className(data, classNameLen, CopyString);
// translate "self" or "parent"
if (className == "self") {
String this_class = hhvm
? g_vmContext->getContextClassName()
: FrameInjection::GetClassName(true);
if (this_class.empty()) {
throw FatalErrorException("Cannot access self:: "
"when no class scope is active");
} else {
className = this_class;
}
} else if (className == "parent") {
String parent_class = hhvm
? g_vmContext->getParentContextClassName()
: FrameInjection::GetParentClassName(true);
if (parent_class.empty()) {
throw FatalErrorException("Cannot access parent");
} else {
className = parent_class;
}
}
// taking care of volatile class
if (class_exists(className)) {
return get_class_constant(className, constantName, false);
} else {
return null;
}
} else {
if (hhvm) {
TypedValue* cns = g_vmContext->getCns(name.get());
if (cns == NULL) {
if (AutoloadHandler::s_instance->autoloadConstant(name)) {
cns = g_vmContext->getCns(name.get());
}
}
if (cns) return tvAsVariant(cns);
return null;
} else {
const ClassInfo::ConstantInfo *cinfo = ClassInfo::FindConstant(name);
// system/uniquely defined scalar constant (must be valid)
if (cinfo) return cinfo->getValue();
if (!((Globals*)get_global_variables())->defined(name)) {
AutoloadHandler::s_instance->autoloadConstant(name);
}
// dynamic/redeclared constant
return ((Globals*)get_global_variables())->getConstant(name.data());
}
}
}
void XDebugProfiler::writeProfilingResults() {
// If we're appending to the file, start a new section
if (m_profilingOpts & k_XDEBUG_PROFILE_APPEND) {
fprintf(m_profilingFile, "\n==== NEW PROFILING FILE ======================="
"=======================\n");
}
// Grab $_SERVER['SCRIPT_NAME'] so we can match xdebug %s filename format
// option
Array server = get_global_variables()->asArrayData()->get(s_SERVER).toArray();
const char* scriptname = server[s_SCRIPT_NAME].toString().data();
// Print the header and body
fprintf(m_profilingFile, "version: 1\ncreator: xdebug %s\n", XDEBUG_VERSION);
fprintf(m_profilingFile, "cmd: %s\npart: 1\npositions: line\n\n", scriptname);
fprintf(m_profilingFile, "events: Time\n\n");
if (m_frameBufferSize > 0 && writeProfilingFrame(0) < 0) {
fprintf(stderr, "Error when writing xdebug profiling file %s. Frame buffer "
"invalid.", m_profilingFilename.data());
}
// Cleanup
m_profilingEnabled = false;
fclose(m_profilingFile);
}
void DummySandbox::run() {
while (!m_stopped) {
try {
char *argv[] = {"", NULL};
execute_command_line_begin(1, argv, 0);
DECLARE_THREAD_INFO;
FRAME_INJECTION_FLAGS(empty_string, _, FrameInjection::PseudoMain);
DSandboxInfo sandbox = m_proxy->getSandbox();
string msg;
if (m_inited) {
SystemGlobals *g = (SystemGlobals *)get_global_variables();
SourceRootInfo sri(sandbox.m_user, sandbox.m_name);
if (sandbox.m_path.empty()) {
sandbox.m_path = sri.path();
}
if (!sri.sandboxOn()) {
msg = "Invalid sandbox was specified. "
"PHP files may not be loaded properly.\n";
// force HPHP_SANDBOX_ID to be set, so we can still talk to client
g->GV(_SERVER).set("HPHP_SANDBOX_ID", sandbox.id());
} else {
sri.setServerVariables(g->GV(_SERVER));
}
std::string doc = getStartupDoc(sandbox);
bool error; string errorMsg;
bool ret = hphp_invoke(g_context.get(), doc, false, null_array, null,
"", "", "", error, errorMsg);
if (!ret || error) {
msg += "Unable to pre-load " + doc;
if (!errorMsg.empty()) {
msg += ": " + errorMsg;
}
}
}
m_inited = true;
Debugger::RegisterSandbox(sandbox);
Debugger::InterruptSessionStarted(NULL, msg.c_str());
// Blocking until Ctrl-C is issued by end user and DebuggerProxy cannot
// find a real sandbox thread to handle it.
{
Lock lock(this);
while (!m_stopped && m_signum != CmdSignal::SignalBreak) {
wait(1);
}
m_signum = CmdSignal::SignalNone;
}
} catch (const DebuggerException &e) {}
execute_command_line_end(0, false, NULL);
}
}
string& SourceRootInfo::initPhpRoot() {
SystemGlobals *g = (SystemGlobals*)get_global_variables();
Variant &server = g->GV(_SERVER);
Variant v = server.rvalAt("PHP_ROOT");
if (v.isString()) {
*s_phproot.getCheck() = string(v.asCStrRef().data()) + string("/");
} else {
// Our best guess at the source root.
*s_phproot.getCheck() = GetCurrentSourceRoot();
}
return *s_phproot.getCheck();
}
string& SourceRootInfo::initPhpRoot() {
GlobalVariables *g = get_global_variables();
CVarRef server = g->get(s_SERVER);
CVarRef v = server.rvalAt(s_PHP_ROOT);
if (v.isString()) {
*s_phproot.getCheck() = string(v.asCStrRef().data()) + string("/");
} else {
// Our best guess at the source root.
*s_phproot.getCheck() = GetCurrentSourceRoot();
}
return *s_phproot.getCheck();
}
bool XDebugServer::isNeeded() {
if (!XDEBUG_GLOBAL(RemoteEnable) ||
XDEBUG_GLOBAL(RemoteMode) == "jit") {
return false;
} else if (XDEBUG_GLOBAL(RemoteAutostart)) {
return true;
} else {
// Check $_COOKIE[XDEBUG_SESSION]
const ArrayData* globals = get_global_variables()->asArrayData();
Array cookie = globals->get(s_COOKIE).toArray();
return !cookie[s_SESSION].isNull();
}
}
bool UrlFile::open(CStrRef url, CStrRef mode) {
const char* modestr = mode.c_str();
if (strchr(modestr, '+') || strchr(modestr, 'a') || strchr(modestr, 'w')) {
std::string msg = "cannot open a url stream for write/append operation: ";
msg += url.c_str();
m_error = msg;
return false;
}
HttpClient http(m_timeout, m_maxRedirect);
m_response.reset();
HeaderMap *pHeaders = nullptr;
HeaderMap requestHeaders;
if (!m_headers.empty()) {
pHeaders = &requestHeaders;
for (ArrayIter iter(m_headers); iter; ++iter) {
requestHeaders[string(iter.first().toString().data())].
push_back(iter.second().toString().data());
}
}
int code;
vector<String> responseHeaders;
if (m_get) {
code = http.get(url.c_str(), m_response, pHeaders, &responseHeaders);
} else {
code = http.post(url.c_str(), m_postData.data(), m_postData.size(),
m_response, pHeaders, &responseHeaders);
}
SystemGlobals *g = (SystemGlobals*)get_global_variables();
Variant &r = g->GV(http_response_header);
r = Array::Create();
for (unsigned int i = 0; i < responseHeaders.size(); i++) {
r.append(responseHeaders[i]);
}
m_responseHeaders = r;
if (code == 200) {
m_name = (std::string) url;
m_data = const_cast<char*>(m_response.data());
m_len = m_response.size();
return true;
} else {
m_error = http.getLastError().c_str();
return false;
}
}
bool UrlFile::open(CStrRef url, CStrRef mode) {
if (strchr(mode, '+') || strchr(mode, 'a') || strchr(mode, 'w')) {
string msg("cannot open a url stream for write/append operation: ");
msg += url.c_str();
raise_warning(msg.c_str());
return false;
}
HttpClient http(m_timeout, m_maxRedirect);
StringBuffer response;
HeaderMap *pHeaders = NULL;
HeaderMap requestHeaders;
if (!m_headers.empty()) {
pHeaders = &requestHeaders;
for (ArrayIter iter(m_headers); iter; ++iter) {
requestHeaders[string(iter.first().toString().data())].
push_back(iter.second().toString().data());
}
}
int code;
vector<String> responseHeaders;
if (m_get) {
code = http.get(url.c_str(), response, pHeaders, &responseHeaders);
} else {
code = http.post(url.c_str(), m_postData.data(), m_postData.size(),
response, pHeaders, &responseHeaders);
}
SystemGlobals *g = (SystemGlobals*)get_global_variables();
Variant &r = g->gv_http_response_header;
r = Array::Create();
for (unsigned int i = 0; i < responseHeaders.size(); i++) {
r.append(responseHeaders[i]);
}
if (code == 200) {
int len = m_len;
m_name = url;
m_data = response.detach(len);
m_len = len;
m_malloced = true;
return true;
} else {
return false;
}
}
void XDebugServer::onRequestInit() {
if (!XDEBUG_GLOBAL(RemoteEnable)) {
return;
}
// Need to turn on debugging regardless of the remote mode in order to
// capture exceptions/errors
if (!DebugHookHandler::attach<XDebugHookHandler>()) {
raise_warning("Could not attach xdebug remote debugger to the current "
"thread. A debugger is already attached.");
return;
}
// Grab $_GET, $_COOKIE, and the transport
const ArrayData* globals = get_global_variables()->asArrayData();
Array get = globals->get(s_GET).toArray();
Array cookie = globals->get(s_COOKIE).toArray();
Transport* transport = g_context->getTransport();
// Need to check $_GET[XDEBUG_SESSION_STOP]. If set, delete the session
// cookie
const Variant sess_stop_var = get[s_SESSION_STOP];
if (!sess_stop_var.isNull()) {
cookie.set(s_SESSION, init_null());
if (transport != nullptr) {
transport->setCookie(s_SESSION, empty_string());
}
}
// Need to check $_GET[XDEBUG_SESSION_START]. If set, store the session
// cookie with $_GET[XDEBUG_SESSION_START] as the value
const Variant sess_start_var = get[s_SESSION_START];
if (sess_start_var.isString()) {
String sess_start = sess_start_var.toString();
cookie.set(s_SESSION, sess_start);
if (transport != nullptr) {
int64_t expire = XDEBUG_GLOBAL(RemoteCookieExpireTime);
if (expire > 0) {
timespec ts;
Timer::GetRealtimeTime(ts);
expire += ts.tv_sec;
}
transport->setCookie(s_SESSION, sess_start, expire);
}
}
}
void XDebugServer::onRequestInit() {
if (!XDEBUG_GLOBAL(RemoteEnable)) {
return;
}
// TODO(#4489053) Enable this when debugger internals have been refactored
// Need to turn on debugging regardless of the remote mode in order to
// capture exceptions/errors
// ThreadInfo *ti = ThreadInfo::s_threadInfo.getNoCheck();
// ti->m_reqInjectionData.setDebugger(true);
// Grab $_GET, $_COOKIE, and the transport
const ArrayData* globals = get_global_variables()->asArrayData();
Array get = globals->get(s_GET).toArray();
Array cookie = globals->get(s_COOKIE).toArray();
Transport* transport = g_context->getTransport();
// Need to check $_GET[XDEBUG_SESSION_STOP]. If set, delete the session
// cookie
const Variant sess_stop_var = get[s_SESSION_STOP];
if (!sess_stop_var.isNull()) {
cookie.set(s_SESSION, init_null());
if (transport != nullptr) {
transport->setCookie(s_SESSION, empty_string());
}
}
// Need to check $_GET[XDEBUG_SESSION_START]. If set, store the session
// cookie with $_GET[XDEBUG_SESSION_START] as the value
const Variant sess_start_var = get[s_SESSION_START];
if (sess_start_var.isString()) {
String sess_start = sess_start_var.toString();
cookie.set(s_SESSION, sess_start);
if (transport != nullptr) {
transport->setCookie(s_SESSION,
sess_start,
XDEBUG_GLOBAL(RemoteCookieExpireTime));
}
}
}
Variant invoke_file(CStrRef path, bool once /* = false */,
LVariableTable* variables /* = NULL */,
const char *currentDir /* = NULL */) {
String cmd = canonicalize_path(path, "", 0);
if (path == "string") {
echo("Hello, world!");
return true;
}
if (cmd == "pageletserver") {
SystemGlobals *g = (SystemGlobals*)get_global_variables();
echo("pagelet postparam: ");
echo(g->GV(HTTP_RAW_POST_DATA));
echo("pagelet getparam: ");
echo(g->GV(_GET)["getparam"]);
echo("pagelet header: ");
echo(g->GV(_SERVER)["HTTP_MYHEADER"]);
f_header("ResponseHeader: okay");
sleep(1); // give status check time to happen
return true;
}
return false;
}
Array f_getopt(CStrRef options, CVarRef longopts /* = null_variant */) {
opt_struct *opts, *orig_opts;
int len = parse_opts(options.data(), options.size(), &opts);
if (!longopts.isNull()) {
Array arropts = longopts.toArray();
int count = arropts.size();
/* the first <len> slots are filled by the one short ops
* we now extend our array and jump to the new added structs */
opts = (opt_struct *)realloc(opts, sizeof(opt_struct) * (len + count + 1));
orig_opts = opts;
opts += len;
memset(opts, 0, count * sizeof(opt_struct));
for (ArrayIter iter(arropts); iter; ++iter) {
String entry = iter.second().toString();
opts->need_param = 0;
opts->opt_name = strdup(entry.data());
len = strlen(opts->opt_name);
if ((len > 0) && (opts->opt_name[len - 1] == ':')) {
opts->need_param++;
opts->opt_name[len - 1] = '\0';
if ((len > 1) && (opts->opt_name[len - 2] == ':')) {
opts->need_param++;
opts->opt_name[len - 2] = '\0';
}
}
opts->opt_char = 0;
opts++;
}
} else {
opts = (opt_struct*) realloc(opts, sizeof(opt_struct) * (len + 1));
orig_opts = opts;
opts += len;
}
/* php_getopt want to identify the last param */
opts->opt_char = '-';
opts->need_param = 0;
opts->opt_name = NULL;
static const StaticString s_argv("argv");
GlobalVariables *g = get_global_variables();
Array vargv = g->get(s_argv).toArray();
int argc = vargv.size();
char **argv = (char **)malloc((argc+1) * sizeof(char*));
vector<String> holders;
int index = 0;
for (ArrayIter iter(vargv); iter; ++iter) {
String arg = iter.second().toString();
holders.push_back(arg);
argv[index++] = (char*)arg.data();
}
argv[index] = NULL;
Array ret = Array::Create();
/* after our pointer arithmetic jump back to the first element */
opts = orig_opts;
int o;
char *php_optarg = NULL;
int php_optind = 1;
Variant val;
int optchr = 0;
int dash = 0; /* have already seen the - */
char opt[2] = { '\0' };
char *optname;
int optname_len = 0;
int php_optidx;
while ((o = php_getopt(argc, argv, opts, &php_optarg, &php_optind, 0, 1,
optchr, dash, php_optidx))
!= -1) {
/* Skip unknown arguments. */
if (o == '?') {
continue;
}
/* Prepare the option character and the argument string. */
if (o == 0) {
optname = opts[php_optidx].opt_name;
} else {
if (o == 1) {
o = '-';
}
opt[0] = o;
optname = opt;
}
if (php_optarg != NULL) {
/* keep the arg as binary, since the encoding is not known */
val = String(php_optarg, CopyString);
} else {
val = false;
}
/* Add this option / argument pair to the result hash. */
optname_len = strlen(optname);
if (!(optname_len > 1 && optname[0] == '0') &&
is_numeric_string(optname, optname_len, NULL, NULL, 0) ==
KindOfInt64) {
/* numeric string */
int optname_int = atoi(optname);
if (ret.exists(optname_int)) {
Variant &e = ret.lvalAt(optname_int);
if (!e.isArray()) {
ret.set(optname_int, CREATE_VECTOR2(e, val));
} else {
e.append(val);
}
} else {
ret.set(optname_int, val);
}
} else {
/* other strings */
String key(optname, strlen(optname), CopyString);
if (ret.exists(key)) {
Variant &e = ret.lvalAt(key);
if (!e.isArray()) {
ret.set(key, CREATE_VECTOR2(e, val));
} else {
e.append(val);
}
} else {
ret.set(key, val);
}
}
php_optarg = NULL;
}
free_longopts(orig_opts);
free(orig_opts);
free(argv);
return ret;
}
void DummySandbox::run() {
TRACE(2, "DummySandbox::run\n");
ThreadInfo *ti = ThreadInfo::s_threadInfo.getNoCheck();
Debugger::RegisterThread();
while (!m_stopped) {
try {
CLISession hphpSession;
DSandboxInfo sandbox = m_proxy->getSandbox();
string msg;
if (sandbox.valid()) {
GlobalVariables *g = get_global_variables();
SourceRootInfo sri(sandbox.m_user, sandbox.m_name);
if (sandbox.m_path.empty()) {
sandbox.m_path = sri.path();
}
if (!sri.sandboxOn()) {
msg = "Invalid sandbox was specified. "
"PHP files may not be loaded properly.\n";
} else {
sri.setServerVariables(g->getRef(s__SERVER));
}
Debugger::RegisterSandbox(sandbox);
g_context->setSandboxId(sandbox.id());
std::string doc = getStartupDoc(sandbox);
if (!doc.empty()) {
char cwd[PATH_MAX];
getcwd(cwd, sizeof(cwd));
Logger::Info("Start loading startup doc '%s', pwd = '%s'",
doc.c_str(), cwd);
bool error; string errorMsg;
bool ret = hphp_invoke(g_context.getNoCheck(), doc, false, null_array,
uninit_null(), "", "", error, errorMsg, true,
false, true);
if (!ret || error) {
msg += "Unable to pre-load " + doc;
if (!errorMsg.empty()) {
msg += ": " + errorMsg;
}
}
Logger::Info("Startup doc " + doc + " loaded");
}
} else {
g_context->setSandboxId(m_proxy->getDummyInfo().id());
}
ti->m_reqInjectionData.setDebugger(true);
{
DebuggerDummyEnv dde;
// This is really the entire point of having the dummy sandbox. This
// fires the initial session started interrupt to the client after
// it first attaches.
Debugger::InterruptSessionStarted(nullptr, msg.c_str());
}
// Blocking until Ctrl-C is issued by end user and DebuggerProxy cannot
// find a real sandbox thread to handle it.
{
Lock lock(this);
while (!m_stopped && m_signum != CmdSignal::SignalBreak) {
wait(1);
}
if (m_stopped) {
// stopped by worker thread
break;
}
m_signum = CmdSignal::SignalNone;
}
} catch (const DebuggerClientExitException &e) {
// stopped by the dummy sandbox thread itself
break;
} catch (const DebuggerException &e) {
}
}
}
// Helper used to create an absolute filename using the passed
// directory and xdebug-specific format string
static String format_filename(folly::StringPiece dir,
folly::StringPiece formatFile,
bool addSuffix) {
// Create a string buffer and append the directory name
auto const formatlen = formatFile.size();
StringBuffer buf(formatlen * 2); // Slightly larger than formatlen
if (!dir.empty()) {
buf.append(dir);
buf.append('/');
}
// Append the filename
auto globals = get_global_variables()->asArrayData();
for (int pos = 0; pos < formatlen; pos++) {
auto c = formatFile[pos];
if (c != '%' || pos + 1 == formatlen) {
buf.append(c);
continue;
}
c = formatFile[++pos];
switch (c) {
// crc32 of current working directory
case 'c': {
auto const crc32 = HHVM_FN(crc32)(g_context->getCwd());
buf.append(crc32);
break;
}
// process id
case 'p':
buf.append(getpid());
break;
// Random number
case 'r':
buf.printf("%lx", (long)HHVM_FN(rand)());
break;
// Script name
case 's': {
auto server = globals->get(s_SERVER).toArray();
if (server.exists(s_SCRIPT_NAME) && server[s_SCRIPT_NAME].isString()) {
const String scriptname(server[s_SCRIPT_NAME].toString(), CopyString);
replace_special_chars(scriptname.get());
buf.append(scriptname);
}
break;
}
// Timestamp (seconds)
case 't': {
auto const sec = (int64_t)time(nullptr);
if (sec != -1) {
buf.append(sec);
}
break;
}
// Timestamp (microseconds)
case 'u': {
struct timeval tv;
if (gettimeofday(&tv, 0) != -1) {
buf.printf("%ld_%ld", long(tv.tv_sec), long(tv.tv_usec));
}
break;
}
// $_SERVER['HTTP_HOST']
case 'H': {
Array server = globals->get(s_SERVER).toArray();
if (server.exists(s_HTTP_HOST) && server[s_HTTP_HOST].isString()) {
const String hostname(server[s_HTTP_HOST].toString(), CopyString);
replace_special_chars(hostname.get());
buf.append(hostname);
}
break;
}
// $_SERVER['REQUEST_URI']
case 'R': {
auto server = globals->get(s_SERVER).toArray();
if (globals->exists(s_REQUEST_URI)) {
const String requri(server[s_REQUEST_URI].toString(), CopyString);
replace_special_chars(requri.get());
buf.append(requri);
}
break;
}
// $_SERVER['UNIQUE_ID']
case 'U': {
auto server = globals->get(s_SERVER).toArray();
if (server.exists(s_UNIQUE_ID) && server[s_UNIQUE_ID].isString()) {
const String uniqueid(server[s_UNIQUE_ID].toString(), CopyString);
replace_special_chars(uniqueid.get());
buf.append(uniqueid);
}
break;
}
// session id
case 'S': {
// First we grab the session name from the ini settings, then the id
// from the cookies
String session_name;
if (IniSetting::Get(s_SESSION_NAME, session_name)) {
auto cookies = globals->get(s_COOKIE).toArray();
if (cookies.exists(session_name) &&
cookies[session_name].isString()) {
const String sessionstr(cookies[session_name].toString(),
CopyString);
replace_special_chars(sessionstr.get());
buf.append(sessionstr);
}
break;
}
}
// Literal
case '%':
buf.append('%');
break;
default:
buf.append('%');
buf.append(c);
break;
}
}
// Optionally add .xt file extension
if (addSuffix) {
buf.append(".xt");
}
return buf.copy();
}
void init_global_variables() {
ThreadInfo::s_threadInfo->m_globals = get_global_variables();
GlobalVariables::initialize();
}
void DummySandbox::run() {
ThreadInfo *ti = ThreadInfo::s_threadInfo.getNoCheck();
Debugger::RegisterThread();
ti->m_reqInjectionData.dummySandbox = true;
while (!m_stopped) {
try {
CLISession hphpSession;
FUNCTION_INJECTION_FS("_", FrameInjection::PseudoMain);
DSandboxInfo sandbox = m_proxy->getSandbox();
string msg;
if (sandbox.valid()) {
SystemGlobals *g = (SystemGlobals *)get_global_variables();
SourceRootInfo sri(sandbox.m_user, sandbox.m_name);
if (sandbox.m_path.empty()) {
sandbox.m_path = sri.path();
}
if (!sri.sandboxOn()) {
msg = "Invalid sandbox was specified. "
"PHP files may not be loaded properly.\n";
} else {
sri.setServerVariables(g->GV(_SERVER));
}
Debugger::RegisterSandbox(sandbox);
g_context->setSandboxId(sandbox.id());
Logger::Info("Start loading startup doc");
std::string doc = getStartupDoc(sandbox);
bool error; string errorMsg;
bool ret = hphp_invoke(g_context.getNoCheck(), doc, false, null_array,
null, "", "", error, errorMsg, true, false,
true);
if (!ret || error) {
msg += "Unable to pre-load " + doc;
if (!errorMsg.empty()) {
msg += ": " + errorMsg;
}
}
Logger::Info("Startup doc " + doc + " loaded");
} else {
g_context->setSandboxId(m_proxy->getDummyInfo().id());
}
ti->m_reqInjectionData.debugger = true;
{
DebuggerDummyEnv dde;
Debugger::InterruptSessionStarted(NULL, msg.c_str());
}
// Blocking until Ctrl-C is issued by end user and DebuggerProxy cannot
// find a real sandbox thread to handle it.
{
Lock lock(this);
while (!m_stopped && m_signum != CmdSignal::SignalBreak) {
wait(1);
}
if (m_stopped) {
// stopped by worker thread
break;
}
m_signum = CmdSignal::SignalNone;
}
} catch (const DebuggerClientExitException &e) {
// stopped by the dummy sandbox thread itself
break;
} catch (const DebuggerException &e) {
}
}
}
Globals* get_globals() { return get_global_variables(); }
bool XDebugServer::initDbgp() {
// Initialize the status and reason
switch (m_mode) {
case Mode::REQ:
setStatus(Status::Starting, Reason::Ok);
break;
case Mode::JIT:
setStatus(Status::Break, Reason::Error);
break;
}
// Create the response
auto response = xdebug_xml_node_init("init");
addXmlns(*response);
// Add the engine info
auto child = xdebug_xml_node_init("engine");
xdebug_xml_add_attribute(child, "version", XDEBUG_VERSION);
xdebug_xml_add_text(child, XDEBUG_NAME, 0);
xdebug_xml_add_child(response, child);
// Add the author
child = xdebug_xml_node_init("author");
xdebug_xml_add_text(child, XDEBUG_AUTHOR, 0);
xdebug_xml_add_child(response, child);
// Add the url
child = xdebug_xml_node_init("url");
xdebug_xml_add_text(child, XDEBUG_URL, 0);
xdebug_xml_add_child(response, child);
// Add the copyright
child = xdebug_xml_node_init("copyright");
xdebug_xml_add_text(child, XDEBUG_COPYRIGHT, 0);
xdebug_xml_add_child(response, child);
// Grab the absolute path of the script filename
auto globals = get_global_variables()->asArrayData();
Variant scriptname_var = globals->get(s_SERVER).toArray()[s_SCRIPT_FILENAME];
assert(scriptname_var.isString());
auto scriptname = scriptname_var.toString().get()->mutableData();
auto fileuri = XDebugUtils::pathToUrl(scriptname);
// Add attributes to the root init node
xdebug_xml_add_attribute_ex(response, "fileuri", fileuri, 0, 1);
xdebug_xml_add_attribute(response, "language", "PHP");
xdebug_xml_add_attribute(response, "protocol_version", DBGP_VERSION);
xdebug_xml_add_attribute(response, "appid", getpid());
// Add the DBGP_COOKIE environment variable
const String dbgp_cookie = g_context->getenv(s_DBGP_COOKIE);
if (!dbgp_cookie.empty()) {
xdebug_xml_add_attribute(response, "session", dbgp_cookie.data());
}
// Add the idekey
if (XDEBUG_GLOBAL(IdeKey).size() > 0) {
xdebug_xml_add_attribute(response, "idekey", XDEBUG_GLOBAL(IdeKey).c_str());
}
// Sent the response
sendMessage(*response);
xdebug_xml_node_dtor(response);
// Wait for a response from the client
return doCommandLoop();
}
void init_global_variables() {
GlobalVariables *g = get_global_variables();
ThreadInfo::s_threadInfo->m_globals = g;
g->initialize();
}
XDebugServer::XDebugServer(Mode mode) : m_mode(mode) {
// Attempt to open optional log file
if (XDEBUG_GLOBAL(RemoteLog).size() > 0) {
m_logFile = fopen(XDEBUG_GLOBAL(RemoteLog).c_str(), "a");
if (m_logFile == nullptr) {
raise_warning("XDebug could not open the remote debug file '%s'.",
XDEBUG_GLOBAL(RemoteLog).c_str());
}
log("Log opened at");
XDebugUtils::fprintTimestamp(m_logFile);
log("\n");
logFlush();
}
// Grab the hostname and port to connect to
const char* hostname = XDEBUG_GLOBAL(RemoteHost).c_str();
int port = XDEBUG_GLOBAL(RemotePort);
if (XDEBUG_GLOBAL(RemoteConnectBack)) {
const ArrayData* globals = get_global_variables()->asArrayData();
Array server = globals->get(s_SERVER).toArray();
log("I: Checking remote connect back address.\n");
// Grab $_SERVER[HTTP_X_FORWARDED_FOR] then $_SERVER[REMOTE_ADDR]
bool host_found = true;
if (server[s_HTTP_X_FORWARDED_FOR].isString()) {
hostname = server[s_HTTP_X_FORWARDED_FOR].toString().data();
} else if (server[s_REMOTE_ADDR].isString()) {
hostname = server[s_REMOTE_ADDR].toString().data();
} else {
host_found = false;
}
// Did we find a host?
if (host_found) {
log("I: Remote address found, connecting to %s:%d.\n", hostname, port);
} else {
log("W: Remote address not found, connecting to configured address/port: "
"%s:%d. :-|\n", hostname, port);
}
} else {
log("I: Connecting to configured address/port: %s:%d.\n", hostname, port);
}
// Create the socket
m_socket = createSocket(hostname, port);
if (m_socket == -1) {
log("E: Could not connect to client. :-(\n");
goto failure;
} else if (m_socket == -2) {
log("E: Time-out connecting to client. :-(\n");
goto failure;
}
// Get the requested handler
log("I: Connected to client. :-)\n");
if (XDEBUG_GLOBAL(RemoteHandler) != "dbgp") {
log("E: The remote debug handler '%s' is not supported. :-(\n",
XDEBUG_GLOBAL(RemoteHandler).c_str());
goto failure;
}
// php5 xdebug has an error case here, but initializing the dbgp handler never
// actually fails
initDbgp();
return;
// Failure cleanup. A goto is used to prevent duplication
failure:
destroySocket();
closeLog();
// Allows the guarantee that any instance of an xdebug server is valid
throw Exception("XDebug Server construction failed");
}
void XDebugServer::initDbgp() {
// Initialize the status and reason
switch (m_mode) {
case Mode::REQ:
setStatus(Status::STARTING, Reason::OK);
break;
case Mode::JIT:
setStatus(Status::BREAK, Reason::ERROR);
break;
}
// Create the response
xdebug_xml_node* response = xdebug_xml_node_init("init");
addXmnls(*response);
// Add the engine info
xdebug_xml_node* child = xdebug_xml_node_init("engine");
xdebug_xml_add_attribute(child, "version", XDEBUG_VERSION);
xdebug_xml_add_text(child, XDEBUG_NAME, 0);
xdebug_xml_add_child(response, child);
// Add the author
child = xdebug_xml_node_init("author");
xdebug_xml_add_text(child, XDEBUG_AUTHOR, 0);
xdebug_xml_add_child(response, child);
// Add the url
child = xdebug_xml_node_init("url");
xdebug_xml_add_text(child, XDEBUG_URL, 0);
xdebug_xml_add_child(response, child);
// Add the copyright
child = xdebug_xml_node_init("copyright");
xdebug_xml_add_text(child, XDEBUG_COPYRIGHT, 0);
xdebug_xml_add_child(response, child);
// Grab the absolute path of the script filename
const ArrayData* globals = get_global_variables()->asArrayData();
Variant scriptname_var = globals->get(s_SERVER).toArray()[s_SCRIPT_FILENAME];
assert(scriptname_var.isString());
char* scriptname = scriptname_var.toString().get()->mutableData();
char* fileuri = XDebugUtils::pathToUrl(scriptname);
// Grab the app id (pid)
// TODO(#4489053) Specification mentions the parent app id as well, xdebug
// doesn't include it.
char* appid = xdebug_sprintf("%d", getpid());
// Add attributes to the root init node
xdebug_xml_add_attribute_ex(response, "fileuri", fileuri, 0, 1);
xdebug_xml_add_attribute_ex(response, "language", "PHP", 0, 0);
xdebug_xml_add_attribute_ex(response, "protocol_version", DBGP_VERSION, 0, 0);
xdebug_xml_add_attribute_ex(response, "appid", appid, 0, 1);
// Add the DBGP_COOKIE environment variable
char* dbgp_cookie = getenv("DBGP_COOKIE");
if (dbgp_cookie != nullptr) {
xdebug_xml_add_attribute_ex(response, "session", dbgp_cookie, 0, 0);
}
// Add the idekey
if (XDEBUG_GLOBAL(IdeKey).size() > 0) {
// TODO(#4489053) Change this when xml api is changed
char* idekey = const_cast<char*>(XDEBUG_GLOBAL(IdeKey).c_str());
xdebug_xml_add_attribute_ex(response, "idekey", idekey, 0, 0);
}
// Sent the response
sendMessage(*response);
xdebug_xml_node_dtor(response);
// Wait for a response from the client
doCommandLoop();
}
SystemGlobals* get_system_globals() { return get_global_variables(); }
bool f_defined(CStrRef name, bool autoload /* = true */) {
if (!name.get()) return false;
const char *data = name.data();
int len = name.length();
char *colon;
if ((colon = (char*)memchr(data, ':', len)) && colon[1] == ':') {
// class constant
int classNameLen = colon - data;
char *constantName = colon + 2;
String className(data, classNameLen, CopyString);
// translate "self" or "parent"
if (className == "self") {
String this_class = hhvm
? g_vmContext->getContextClassName()
: FrameInjection::GetClassName(true);
if (this_class.empty()) {
throw FatalErrorException("Cannot access self:: "
"when no class scope is active");
} else {
className = this_class;
}
} else if (className == "parent") {
String parent_class = hhvm
? g_vmContext->getParentContextClassName()
: FrameInjection::GetParentClassName(true);
if (parent_class.empty()) {
throw FatalErrorException("Cannot access parent");
} else {
className = parent_class;
}
}
if (class_exists(className)) { // taking care of volatile class
const ClassInfo *info;
for (String parentClass = className;
!parentClass.empty();
parentClass = info->getParentClass()) {
info = ClassInfo::FindClass(parentClass);
if (!info) {
assert(false);
}
if (info->hasConstant(constantName)) return true;
}
return false;
} else {
return false;
}
} else {
// system/uniquely defined scalar constant
if (ClassInfo::FindConstant(name)) return true;
if (hhvm ?
g_vmContext->defined(name) :
((Globals*)get_global_variables())->defined(name)) {
return true;
}
if (!autoload || !AutoloadHandler::s_instance->autoloadConstant(name)) {
return false;
}
if (hhvm) return g_vmContext->defined(name);
if (ClassInfo::FindConstant(name)) return true;
return ((Globals*)get_global_variables())->defined(name);
}
}
DebuggerProxyPtr Debugger::GetProxy() {
SystemGlobals *g = (SystemGlobals*)get_global_variables();
String id = g->GV(_SERVER)["HPHP_SANDBOX_ID"];
return s_debugger.findProxy(id.data());
}
Array php_globals_as_array() {
return Array(get_global_variables()->asArrayData());
}
/**
* PHP has "EGPCS" processing order of these global variables, and this
* order is important in preparing $_REQUEST that needs to know which to
* overwrite what when name happens to be the same.
*/
void HttpProtocol::PrepareSystemVariables(Transport *transport,
const RequestURI &r,
const SourceRootInfo &sri) {
SystemGlobals *g = (SystemGlobals*)get_global_variables();
const VirtualHost *vhost = VirtualHost::GetCurrent();
// reset global symbols to nulls or empty arrays
pm_php$globals$symbols_php();
Variant &server = g->GV(_SERVER);
server.set("REQUEST_START_TIME", time(NULL));
// $_ENV
process_env_variables(g->GV(_ENV));
g->GV(_ENV).set("HPHP", 1);
g->GV(_ENV).set("HPHP_SERVER", 1);
#ifdef HOTPROFILER
g->GV(_ENV).set("HPHP_HOTPROFILER", 1);
#endif
Variant &request = g->GV(_REQUEST);
// $_GET and $_REQUEST
if (!r.queryString().empty()) {
DecodeParameters(g->GV(_GET), r.queryString().data(),
r.queryString().size());
CopyParams(request, g->GV(_GET));
}
string contentType = transport->getHeader("Content-Type");
string contentLength = transport->getHeader("Content-Length");
// $_POST and $_REQUEST
if (transport->getMethod() == Transport::POST) {
bool needDelete = false;
int size = 0;
const void *data = transport->getPostData(size);
if (data && size) {
ASSERT(((char*)data)[size] == 0); // we need a NULL terminated string
string boundary;
int content_length = atoi(contentLength.c_str());
bool rfc1867Post = IsRfc1867(contentType, boundary);
string files;
if (rfc1867Post) {
if (content_length > VirtualHost::GetMaxPostSize()) {
// $_POST and $_FILES are empty
Logger::Warning("POST Content-Length of %d bytes exceeds "
"the limit of %lld bytes",
content_length, VirtualHost::GetMaxPostSize());
needDelete = read_all_post_data(transport, data, size);
} else {
if (transport->hasMorePostData()) {
needDelete = true;
data = Util::buffer_duplicate(data, size);
}
DecodeRfc1867(transport, g->GV(_POST), g->GV(_FILES),
content_length, data, size, boundary);
}
ASSERT(!transport->getFiles(files));
} else {
needDelete = read_all_post_data(transport, data, size);
bool decodeData = strncasecmp(contentType.c_str(),
DEFAULT_POST_CONTENT_TYPE,
sizeof(DEFAULT_POST_CONTENT_TYPE)-1) == 0;
// Always decode data for now. (macvicar)
decodeData = true;
if (decodeData) {
DecodeParameters(g->GV(_POST), (const char*)data, size, true);
}
bool ret = transport->getFiles(files);
if (ret) {
g->GV(_FILES) = f_unserialize(files);
}
}
CopyParams(request, g->GV(_POST));
if (needDelete) {
if (RuntimeOption::AlwaysPopulateRawPostData) {
g->GV(HTTP_RAW_POST_DATA) = String((char*)data, size, AttachString);
} else {
free((void *)data);
}
} else {
// For literal we disregard RuntimeOption::AlwaysPopulateRawPostData
g->GV(HTTP_RAW_POST_DATA) = String((char*)data, size, AttachLiteral);
}
}
}
// $_COOKIE
string cookie_data = transport->getHeader("Cookie");
if (!cookie_data.empty()) {
StringBuffer sb;
sb.append(cookie_data);
DecodeCookies(g->GV(_COOKIE), (char*)sb.data());
CopyParams(request, g->GV(_COOKIE));
}
// $_SERVER
// HTTP_ headers -- we don't exclude headers we handle elsewhere (e.g.,
// Content-Type, Authorization), since the CGI "spec" merely says the server
// "may" exclude them; this is not what APE does, but it's harmless.
HeaderMap headers;
transport->getHeaders(headers);
for (HeaderMap::const_iterator iter = headers.begin();
iter != headers.end(); ++iter) {
const vector<string> &values = iter->second;
for (unsigned int i = 0; i < values.size(); i++) {
String key = "HTTP_";
key += StringUtil::ToUpper(iter->first).replace("-", "_");
server.set(key, String(values[i]));
}
}
string host = transport->getHeader("Host");
String hostName(VirtualHost::GetCurrent()->serverName(host));
string hostHeader(host);
if (hostHeader.empty()) {
server.set("HTTP_HOST", hostName);
StackTraceNoHeap::AddExtraLogging("Server", hostName.data());
} else {
StackTraceNoHeap::AddExtraLogging("Server", hostHeader.c_str());
}
if (hostName.empty() || RuntimeOption::ForceServerNameToHeader) {
hostName = hostHeader;
// _SERVER['SERVER_NAME'] shouldn't contain the port number
int colonPos = hostName.find(':');
if (colonPos != String::npos) {
hostName = hostName.substr(0, colonPos);
}
}
// APE sets CONTENT_TYPE and CONTENT_LENGTH without HTTP_
if (!contentType.empty()) {
server.set("CONTENT_TYPE", String(contentType));
}
if (!contentLength.empty()) {
server.set("CONTENT_LENGTH", String(contentLength));
}
// APE processes Authorization: Basic into PHP_AUTH_USER and PHP_AUTH_PW
string authorization = transport->getHeader("Authorization");
if (!authorization.empty()) {
if (strncmp(authorization.c_str(), "Basic ", 6) == 0) {
// it's safe to pass this as a string literal since authorization
// outlives decodedAuth; this saves us a superfluous copy.
String decodedAuth =
StringUtil::Base64Decode(String(authorization.c_str() + 6));
int colonPos = decodedAuth.find(':');
if (colonPos != String::npos) {
server.set("PHP_AUTH_USER", decodedAuth.substr(0, colonPos));
server.set("PHP_AUTH_PW", decodedAuth.substr(colonPos + 1));
}
}
}
server.set("REQUEST_URI", String(transport->getUrl(), CopyString));
server.set("SCRIPT_URL", r.originalURL());
String prefix(transport->isSSL() ? "https://" : "http://");
String port_suffix("");
// Need to append port
if (!transport->isSSL() && RuntimeOption::ServerPort != 80) {
port_suffix = ":" + RuntimeOption::ServerPort;
}
server.set("SCRIPT_URI", String(prefix +
(hostHeader.empty() ?
hostName + port_suffix : hostHeader)
+ r.originalURL()));
if (r.rewritten()) {
// when URL is rewritten, PHP decided to put original URL as SCRIPT_NAME
String name = r.originalURL();
if (!r.pathInfo().empty()) {
int pos = name.find(r.pathInfo());
if (pos >= 0) {
name = name.substr(0, pos);
}
}
if (r.defaultDoc()) {
if (!name.empty() && name[name.length() - 1] != '/') {
name += "/";
}
name += String(RuntimeOption::DefaultDocument);
}
server.set("SCRIPT_NAME", name);
} else {
server.set("SCRIPT_NAME", r.resolvedURL());
}
if (!r.rewritten() && r.pathInfo().empty()) {
server.set("PHP_SELF", r.resolvedURL());
} else {
// when URL is rewritten, or pathinfo is not empty, use original URL
server.set("PHP_SELF", r.originalURL());
}
server.set("SCRIPT_FILENAME", r.absolutePath());
if (r.pathInfo().empty()) {
server.set("PATH_TRANSLATED", r.absolutePath());
} else {
server.set("PATH_TRANSLATED",
String(vhost->getDocumentRoot() + r.pathInfo().data()));
server.set("PATH_INFO", r.pathInfo());
}
server.set("argv", r.queryString());
server.set("argc", 0);
server.set("GATEWAY_INTERFACE", "CGI/1.1");
server.set("SERVER_ADDR", String(RuntimeOption::ServerPrimaryIP));
server.set("SERVER_NAME", hostName);
server.set("SERVER_PORT", RuntimeOption::ServerPort);
server.set("SERVER_SOFTWARE", "HPHP");
server.set("SERVER_PROTOCOL", "HTTP/" + transport->getHTTPVersion());
server.set("SERVER_ADMIN", "");
server.set("SERVER_SIGNATURE", "");
switch (transport->getMethod()) {
case Transport::GET: server.set("REQUEST_METHOD", "GET"); break;
case Transport::HEAD: server.set("REQUEST_METHOD", "HEAD"); break;
case Transport::POST:
if (transport->getExtendedMethod() == NULL) {
server.set("REQUEST_METHOD", "POST");
} else {
server.set("REQUEST_METHOD", transport->getExtendedMethod());
}
break;
default: server.set("REQUEST_METHOD", ""); break;
}
server.set("HTTPS", transport->isSSL() ? "1" : "");
server.set("REQUEST_TIME", time(NULL));
server.set("QUERY_STRING", r.queryString());
server.set("REMOTE_ADDR", String(transport->getRemoteHost(), CopyString));
server.set("REMOTE_HOST", ""); // I don't think we need to nslookup
server.set("REMOTE_PORT", 0); // TODO: quite useless
server.set("DOCUMENT_ROOT", String(vhost->getDocumentRoot()));
for (map<string, string>::const_iterator iter =
RuntimeOption::ServerVariables.begin();
iter != RuntimeOption::ServerVariables.end(); ++iter) {
server.set(String(iter->first), String(iter->second));
}
const map<string, string> &vServerVars = vhost->getServerVars();
for (map<string, string>::const_iterator iter =
vServerVars.begin();
iter != vServerVars.end(); ++iter) {
server.set(String(iter->first), String(iter->second));
}
sri.setServerVariables(server);
const char *threadType = transport->getThreadTypeName();
server.set("THREAD_TYPE", threadType);
StackTraceNoHeap::AddExtraLogging("ThreadType", threadType);
#ifdef TAINTED
taint_array_variant(g->GV(_GET), "$_GET");
taint_array_variant(g->GV(_POST), "$_POST");
taint_array_variant(g->GV(_SERVER), "$_SERVER");
taint_array_variant(g->GV(_COOKIE), "$_COOKIE");
#endif
}
bool RPCRequestHandler::executePHPFunction(Transport *transport,
SourceRootInfo &sourceRootInfo) {
// reset timeout counter
ThreadInfo::s_threadInfo->m_reqInjectionData.started = time(0);
string rpcFunc = transport->getCommand();
{
ServerStatsHelper ssh("input");
RequestURI reqURI(rpcFunc);
HttpProtocol::PrepareSystemVariables(transport, reqURI, sourceRootInfo);
SystemGlobals *g = (SystemGlobals*)get_global_variables();
g->GV(_ENV).set(s_HPHP_RPC, 1);
}
bool isFile = rpcFunc.rfind('.') != string::npos;
string rpcFile;
bool error = false;
Array params;
string sparams = transport->getParam("params");
if (!sparams.empty()) {
Variant jparams = f_json_decode(String(sparams), true);
if (jparams.isArray()) {
params = jparams.toArray();
} else {
error = true;
}
} else {
vector<string> sparams;
transport->getArrayParam("p", sparams);
if (!sparams.empty()) {
for (unsigned int i = 0; i < sparams.size(); i++) {
Variant jparams = f_json_decode(String(sparams[i]), true);
if (same(jparams, false)) {
error = true;
break;
}
params.append(jparams);
}
} else {
// single string parameter, used by xbox to avoid any en/decoding
int size;
const void *data = transport->getPostData(size);
if (data && size) {
params.append(String((char*)data, size, AttachLiteral));
}
}
}
if (transport->getIntParam("reset") == 1) {
m_reset = true;
}
int output = transport->getIntParam("output");
int code;
if (!error) {
Variant funcRet;
string errorMsg = "Internal Server Error";
string reqInitFunc, reqInitDoc;
reqInitDoc = transport->getHeader("ReqInitDoc");
if (reqInitDoc.empty() && m_serverInfo) {
reqInitFunc = m_serverInfo->getReqInitFunc();
reqInitDoc = m_serverInfo->getReqInitDoc();
}
if (!reqInitDoc.empty()) {
reqInitDoc = (std::string)canonicalize_path(reqInitDoc, "", 0);
}
if (!reqInitDoc.empty()) {
reqInitDoc = getSourceFilename(reqInitDoc, sourceRootInfo);
}
bool runOnce = false;
bool ret = true;
if (isFile) {
rpcFile = rpcFunc;
rpcFunc.clear();
} else {
rpcFile = transport->getParam("include");
if (rpcFile.empty()) {
rpcFile = transport->getParam("include_once");
runOnce = true;
}
}
if (!rpcFile.empty()) {
// invoking a file through rpc
bool forbidden = false;
if (!RuntimeOption::ForbiddenFileExtensions.empty()) {
const char *ext = rpcFile.c_str() + rpcFile.rfind('.') + 1;
if (RuntimeOption::ForbiddenFileExtensions.find(ext) !=
RuntimeOption::ForbiddenFileExtensions.end()) {
forbidden = true;
}
}
if (!forbidden) {
rpcFile = (std::string) canonicalize_path(rpcFile, "", 0);
rpcFile = getSourceFilename(rpcFile, sourceRootInfo);
ret = hphp_invoke(m_context, rpcFile, false, Array(), uninit_null(),
reqInitFunc, reqInitDoc, error, errorMsg, runOnce);
}
// no need to do the initialization for a second time
reqInitFunc.clear();
reqInitDoc.clear();
}
if (ret && !rpcFunc.empty()) {
ret = hphp_invoke(m_context, rpcFunc, true, params, ref(funcRet),
reqInitFunc, reqInitDoc, error, errorMsg);
}
if (ret) {
bool serializeFailed = false;
String response;
switch (output) {
case 0: {
assert(m_returnEncodeType == Json ||
m_returnEncodeType == Serialize);
try {
response = (m_returnEncodeType == Json) ? f_json_encode(funcRet)
: f_serialize(funcRet);
} catch (...) {
serializeFailed = true;
}
break;
}
case 1: response = m_context->obDetachContents(); break;
case 2:
response =
f_json_encode(CREATE_MAP2(s_output, m_context->obDetachContents(),
s_return, f_json_encode(funcRet)));
break;
case 3: response = f_serialize(funcRet); break;
}
if (serializeFailed) {
code = 500;
transport->sendString(
"Serialization of the return value failed", 500);
m_reset = true;
} else {
transport->sendRaw((void*)response.data(), response.size());
code = transport->getResponseCode();
}
} else if (error) {
code = 500;
transport->sendString(errorMsg, 500);
m_reset = true;
} else {
code = 404;
transport->sendString("Not Found", 404);
}
} else {
code = 400;
transport->sendString("Bad Request", 400);
}
params.reset();
sourceRootInfo.clear();
transport->onSendEnd();
ServerStats::LogPage(isFile ? rpcFile : rpcFunc, code);
m_context->onShutdownPostSend();
m_context->obClean(); // in case postsend/cleanup output something
m_context->restoreSession();
return !error;
}