mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
f4de297d84
Backed out changeset 8c3aa9973da0 (bug 939294) Backed out changeset 37098c13e59e (bug 939294) Backed out changeset 7c9ade6c871c (bug 939294) Backed out changeset fed59539afc1 (bug 939294) Backed out changeset 89e9d3fa16fc (bug 939294) Backed out changeset c97e58ebc5f4 (bug 939294)
370 lines
12 KiB
C++
370 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
|
* vim: set ts=4 sw=4 et tw=80:
|
|
*
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "mozJSSubScriptLoader.h"
|
|
#include "mozJSComponentLoader.h"
|
|
#include "mozJSLoaderUtils.h"
|
|
|
|
#include "nsIURI.h"
|
|
#include "nsIIOService.h"
|
|
#include "nsIChannel.h"
|
|
#include "nsIInputStream.h"
|
|
#include "nsNetCID.h"
|
|
#include "nsNetUtil.h"
|
|
#include "nsIFileURL.h"
|
|
#include "nsScriptLoader.h"
|
|
#include "nsIScriptSecurityManager.h"
|
|
|
|
#include "jsapi.h"
|
|
#include "jsfriendapi.h"
|
|
#include "js/OldDebugAPI.h"
|
|
#include "nsJSPrincipals.h"
|
|
#include "xpcpublic.h" // For xpc::SystemErrorReporter
|
|
#include "xpcprivate.h" // For xpc::OptionsBase
|
|
|
|
#include "mozilla/scache/StartupCache.h"
|
|
#include "mozilla/scache/StartupCacheUtils.h"
|
|
|
|
using namespace mozilla::scache;
|
|
using namespace JS;
|
|
using namespace xpc;
|
|
|
|
class MOZ_STACK_CLASS LoadSubScriptOptions : public OptionsBase {
|
|
public:
|
|
LoadSubScriptOptions(JSContext *cx = xpc_GetSafeJSContext(),
|
|
JSObject *options = nullptr)
|
|
: OptionsBase(cx, options)
|
|
, target(cx)
|
|
, charset(NullString())
|
|
, ignoreCache(false)
|
|
{ }
|
|
|
|
virtual bool Parse() {
|
|
return ParseObject("target", &target) &&
|
|
ParseString("charset", charset) &&
|
|
ParseBoolean("ignoreCache", &ignoreCache);
|
|
}
|
|
|
|
RootedObject target;
|
|
nsString charset;
|
|
bool ignoreCache;
|
|
};
|
|
|
|
|
|
/* load() error msgs, XXX localize? */
|
|
#define LOAD_ERROR_NOSERVICE "Error creating IO Service."
|
|
#define LOAD_ERROR_NOURI "Error creating URI (invalid URL scheme?)"
|
|
#define LOAD_ERROR_NOSCHEME "Failed to get URI scheme. This is bad."
|
|
#define LOAD_ERROR_URI_NOT_LOCAL "Trying to load a non-local URI."
|
|
#define LOAD_ERROR_NOSTREAM "Error opening input stream (invalid filename?)"
|
|
#define LOAD_ERROR_NOCONTENT "ContentLength not available (not a local URL?)"
|
|
#define LOAD_ERROR_BADCHARSET "Error converting to specified charset"
|
|
#define LOAD_ERROR_BADREAD "File Read Error."
|
|
#define LOAD_ERROR_READUNDERFLOW "File Read Error (underflow.)"
|
|
#define LOAD_ERROR_NOPRINCIPALS "Failed to get principals."
|
|
#define LOAD_ERROR_NOSPEC "Failed to get URI spec. This is bad."
|
|
#define LOAD_ERROR_CONTENTTOOBIG "ContentLength is too large"
|
|
|
|
mozJSSubScriptLoader::mozJSSubScriptLoader() : mSystemPrincipal(nullptr)
|
|
{
|
|
// Force construction of the JS component loader. We may need it later.
|
|
nsCOMPtr<xpcIJSModuleLoader> componentLoader =
|
|
do_GetService(MOZJSCOMPONENTLOADER_CONTRACTID);
|
|
}
|
|
|
|
mozJSSubScriptLoader::~mozJSSubScriptLoader()
|
|
{
|
|
/* empty */
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS1(mozJSSubScriptLoader, mozIJSSubScriptLoader)
|
|
|
|
static nsresult
|
|
ReportError(JSContext *cx, const char *msg)
|
|
{
|
|
RootedValue exn(cx, JS::StringValue(JS_NewStringCopyZ(cx, msg)));
|
|
JS_SetPendingException(cx, exn);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
mozJSSubScriptLoader::ReadScript(nsIURI *uri, JSContext *cx, JSObject *targetObjArg,
|
|
const nsAString& charset, const char *uriStr,
|
|
nsIIOService *serv, nsIPrincipal *principal,
|
|
bool reuseGlobal, JSScript **scriptp,
|
|
JSFunction **functionp)
|
|
{
|
|
RootedObject target_obj(cx, targetObjArg);
|
|
|
|
nsCOMPtr<nsIChannel> chan;
|
|
nsCOMPtr<nsIInputStream> instream;
|
|
JSErrorReporter er;
|
|
|
|
*scriptp = nullptr;
|
|
*functionp = nullptr;
|
|
|
|
nsresult rv;
|
|
// Instead of calling NS_OpenURI, we create the channel ourselves and call
|
|
// SetContentType, to avoid expensive MIME type lookups (bug 632490).
|
|
rv = NS_NewChannel(getter_AddRefs(chan), uri, serv,
|
|
nullptr, nullptr, nsIRequest::LOAD_NORMAL);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
chan->SetContentType(NS_LITERAL_CSTRING("application/javascript"));
|
|
rv = chan->Open(getter_AddRefs(instream));
|
|
}
|
|
|
|
if (NS_FAILED(rv)) {
|
|
return ReportError(cx, LOAD_ERROR_NOSTREAM);
|
|
}
|
|
|
|
int64_t len = -1;
|
|
|
|
rv = chan->GetContentLength(&len);
|
|
if (NS_FAILED(rv) || len == -1) {
|
|
return ReportError(cx, LOAD_ERROR_NOCONTENT);
|
|
}
|
|
|
|
if (len > INT32_MAX) {
|
|
return ReportError(cx, LOAD_ERROR_CONTENTTOOBIG);
|
|
}
|
|
|
|
nsCString buf;
|
|
rv = NS_ReadInputStreamToString(instream, buf, len);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
/* set our own error reporter so we can report any bad things as catchable
|
|
* exceptions, including the source/line number */
|
|
er = JS_SetErrorReporter(cx, xpc::SystemErrorReporter);
|
|
|
|
JS::CompileOptions options(cx);
|
|
options.setPrincipals(nsJSPrincipals::get(principal))
|
|
.setFileAndLine(uriStr, 1);
|
|
if (!charset.IsVoid()) {
|
|
nsString script;
|
|
rv = nsScriptLoader::ConvertToUTF16(nullptr, reinterpret_cast<const uint8_t*>(buf.get()), len,
|
|
charset, nullptr, script);
|
|
|
|
if (NS_FAILED(rv)) {
|
|
return ReportError(cx, LOAD_ERROR_BADCHARSET);
|
|
}
|
|
|
|
if (!reuseGlobal) {
|
|
*scriptp = JS::Compile(cx, target_obj, options,
|
|
script.get(),
|
|
script.Length());
|
|
} else {
|
|
*functionp = JS::CompileFunction(cx, target_obj, options,
|
|
nullptr, 0, nullptr,
|
|
script.get(),
|
|
script.Length());
|
|
}
|
|
} else {
|
|
// We only use LAZY_SOURCE when no special encoding is specified because
|
|
// the lazy source loader doesn't know the encoding.
|
|
if (!reuseGlobal) {
|
|
options.setSourcePolicy(JS::CompileOptions::LAZY_SOURCE);
|
|
*scriptp = JS::Compile(cx, target_obj, options, buf.get(), len);
|
|
} else {
|
|
*functionp = JS::CompileFunction(cx, target_obj, options,
|
|
nullptr, 0, nullptr, buf.get(),
|
|
len);
|
|
}
|
|
}
|
|
|
|
/* repent for our evil deeds */
|
|
JS_SetErrorReporter(cx, er);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
mozJSSubScriptLoader::LoadSubScript(const nsAString& url,
|
|
const Value& targetArg,
|
|
const nsAString& charset,
|
|
JSContext* cx,
|
|
Value* retval)
|
|
{
|
|
/*
|
|
* Loads a local url and evals it into the current cx
|
|
* Synchronous (an async version would be cool too.)
|
|
* url: The url to load. Must be local so that it can be loaded
|
|
* synchronously.
|
|
* target_obj: Optional object to eval the script onto (defaults to context
|
|
* global)
|
|
* charset: Optional character set to use for reading
|
|
* returns: Whatever jsval the script pointed to by the url returns.
|
|
* Should ONLY (O N L Y !) be called from JavaScript code.
|
|
*/
|
|
LoadSubScriptOptions options(cx);
|
|
options.charset = charset;
|
|
options.target = targetArg.isObject() ? &targetArg.toObject() : nullptr;
|
|
return DoLoadSubScriptWithOptions(url, options, cx, retval);
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
mozJSSubScriptLoader::LoadSubScriptWithOptions(const nsAString& url, const Value& optionsVal,
|
|
JSContext* cx, Value* retval)
|
|
{
|
|
if (!optionsVal.isObject())
|
|
return NS_ERROR_INVALID_ARG;
|
|
LoadSubScriptOptions options(cx, &optionsVal.toObject());
|
|
if (!options.Parse())
|
|
return NS_ERROR_INVALID_ARG;
|
|
return DoLoadSubScriptWithOptions(url, options, cx, retval);
|
|
}
|
|
|
|
nsresult
|
|
mozJSSubScriptLoader::DoLoadSubScriptWithOptions(const nsAString& url,
|
|
LoadSubScriptOptions& options,
|
|
JSContext* cx, Value* retval)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
|
|
/* set the system principal if it's not here already */
|
|
if (!mSystemPrincipal) {
|
|
nsCOMPtr<nsIScriptSecurityManager> secman =
|
|
do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID);
|
|
if (!secman)
|
|
return NS_OK;
|
|
|
|
rv = secman->GetSystemPrincipal(getter_AddRefs(mSystemPrincipal));
|
|
if (NS_FAILED(rv) || !mSystemPrincipal)
|
|
return rv;
|
|
}
|
|
|
|
RootedObject targetObj(cx);
|
|
mozJSComponentLoader* loader = mozJSComponentLoader::Get();
|
|
rv = loader->FindTargetObject(cx, &targetObj);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// We base reusingGlobal off of what the loader told us, but we may not
|
|
// actually be using that object.
|
|
bool reusingGlobal = !JS_IsGlobalObject(targetObj);
|
|
|
|
if (options.target)
|
|
targetObj = options.target;
|
|
|
|
// Remember an object out of the calling compartment so that we
|
|
// can properly wrap the result later.
|
|
nsCOMPtr<nsIPrincipal> principal = mSystemPrincipal;
|
|
RootedObject result_obj(cx, targetObj);
|
|
targetObj = JS_FindCompilationScope(cx, targetObj);
|
|
if (!targetObj)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
if (targetObj != result_obj)
|
|
principal = GetObjectPrincipal(targetObj);
|
|
|
|
JSAutoCompartment ac(cx, targetObj);
|
|
|
|
/* load up the url. From here on, failures are reflected as ``custom''
|
|
* js exceptions */
|
|
nsCOMPtr<nsIURI> uri;
|
|
nsAutoCString uriStr;
|
|
nsAutoCString scheme;
|
|
|
|
RootedScript script(cx);
|
|
|
|
// Figure out who's calling us
|
|
if (!JS_DescribeScriptedCaller(cx, &script, nullptr)) {
|
|
// No scripted frame means we don't know who's calling, bail.
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Suppress caching if we're compiling as content.
|
|
StartupCache* cache = (principal == mSystemPrincipal)
|
|
? StartupCache::GetSingleton()
|
|
: nullptr;
|
|
nsCOMPtr<nsIIOService> serv = do_GetService(NS_IOSERVICE_CONTRACTID);
|
|
if (!serv) {
|
|
return ReportError(cx, LOAD_ERROR_NOSERVICE);
|
|
}
|
|
|
|
// Make sure to explicitly create the URI, since we'll need the
|
|
// canonicalized spec.
|
|
rv = NS_NewURI(getter_AddRefs(uri), NS_LossyConvertUTF16toASCII(url).get(), nullptr, serv);
|
|
if (NS_FAILED(rv)) {
|
|
return ReportError(cx, LOAD_ERROR_NOURI);
|
|
}
|
|
|
|
rv = uri->GetSpec(uriStr);
|
|
if (NS_FAILED(rv)) {
|
|
return ReportError(cx, LOAD_ERROR_NOSPEC);
|
|
}
|
|
|
|
rv = uri->GetScheme(scheme);
|
|
if (NS_FAILED(rv)) {
|
|
return ReportError(cx, LOAD_ERROR_NOSCHEME);
|
|
}
|
|
|
|
if (!scheme.EqualsLiteral("chrome")) {
|
|
// This might be a URI to a local file, though!
|
|
nsCOMPtr<nsIURI> innerURI = NS_GetInnermostURI(uri);
|
|
nsCOMPtr<nsIFileURL> fileURL = do_QueryInterface(innerURI);
|
|
if (!fileURL) {
|
|
return ReportError(cx, LOAD_ERROR_URI_NOT_LOCAL);
|
|
}
|
|
|
|
// For file URIs prepend the filename with the filename of the
|
|
// calling script, and " -> ". See bug 418356.
|
|
nsAutoCString tmp(JS_GetScriptFilename(cx, script));
|
|
tmp.AppendLiteral(" -> ");
|
|
tmp.Append(uriStr);
|
|
|
|
uriStr = tmp;
|
|
}
|
|
|
|
bool writeScript = false;
|
|
JSVersion version = JS_GetVersion(cx);
|
|
nsAutoCString cachePath;
|
|
cachePath.AppendPrintf("jssubloader/%d", version);
|
|
PathifyURI(uri, cachePath);
|
|
|
|
RootedFunction function(cx);
|
|
script = nullptr;
|
|
if (cache && !options.ignoreCache)
|
|
rv = ReadCachedScript(cache, cachePath, cx, mSystemPrincipal, &script);
|
|
if (!script) {
|
|
rv = ReadScript(uri, cx, targetObj, options.charset,
|
|
static_cast<const char*>(uriStr.get()), serv,
|
|
principal, reusingGlobal, script.address(), function.address());
|
|
writeScript = !!script;
|
|
}
|
|
|
|
if (NS_FAILED(rv) || (!script && !function))
|
|
return rv;
|
|
|
|
if (function) {
|
|
script = JS_GetFunctionScript(cx, function);
|
|
}
|
|
|
|
loader->NoteSubScript(script, targetObj);
|
|
|
|
RootedValue rval(cx);
|
|
bool ok = false;
|
|
if (function) {
|
|
ok = JS_CallFunction(cx, targetObj, function, 0, nullptr, rval.address());
|
|
} else {
|
|
ok = JS_ExecuteScriptVersion(cx, targetObj, script, rval.address(), version);
|
|
}
|
|
|
|
if (ok) {
|
|
JSAutoCompartment rac(cx, result_obj);
|
|
if (!JS_WrapValue(cx, &rval))
|
|
return NS_ERROR_UNEXPECTED;
|
|
*retval = rval;
|
|
}
|
|
|
|
if (cache && ok && writeScript) {
|
|
WriteCachedScript(cache, cachePath, cx, mSystemPrincipal, script);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|