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gecko-dev/netwerk/protocol/http/HttpBaseChannel.cpp

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set sw=2 ts=8 et tw=80 : */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* The Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Daniel Witte <dwitte@mozilla.com>
* Frederic Plourde <bugzillaFred@gmail.com>
* Jason Duell <jduell.mcbugs@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "mozilla/net/HttpBaseChannel.h"
#include "nsHttpHandler.h"
#include "nsMimeTypes.h"
#include "nsNetUtil.h"
#include "nsICachingChannel.h"
#include "nsISeekableStream.h"
#include "nsIEncodedChannel.h"
#include "nsIResumableChannel.h"
#include "nsIApplicationCacheChannel.h"
#include "nsEscape.h"
#include "nsPrintfCString.h"
namespace mozilla {
namespace net {
HttpBaseChannel::HttpBaseChannel()
: mStartPos(LL_MAXUINT)
, mStatus(NS_OK)
, mLoadFlags(LOAD_NORMAL)
, mPriority(PRIORITY_NORMAL)
, mCaps(0)
, mRedirectionLimit(gHttpHandler->RedirectionLimit())
, mApplyConversion(PR_TRUE)
, mCanceled(PR_FALSE)
, mIsPending(PR_FALSE)
, mWasOpened(PR_FALSE)
, mResponseHeadersModified(PR_FALSE)
, mAllowPipelining(PR_TRUE)
, mForceAllowThirdPartyCookie(PR_FALSE)
, mUploadStreamHasHeaders(PR_FALSE)
, mInheritApplicationCache(PR_TRUE)
, mChooseApplicationCache(PR_FALSE)
, mLoadedFromApplicationCache(PR_FALSE)
, mChannelIsForDownload(PR_FALSE)
{
LOG(("Creating HttpBaseChannel @%x\n", this));
// grab a reference to the handler to ensure that it doesn't go away.
NS_ADDREF(gHttpHandler);
}
HttpBaseChannel::~HttpBaseChannel()
{
LOG(("Destroying HttpBaseChannel @%x\n", this));
gHttpHandler->Release();
}
nsresult
HttpBaseChannel::Init(nsIURI *aURI,
PRUint8 aCaps,
nsProxyInfo *aProxyInfo)
{
LOG(("HttpBaseChannel::Init [this=%p]\n", this));
NS_PRECONDITION(aURI, "null uri");
nsresult rv = nsHashPropertyBag::Init();
if (NS_FAILED(rv)) return rv;
mURI = aURI;
mOriginalURI = aURI;
mDocumentURI = nsnull;
mCaps = aCaps;
// Construct connection info object
nsCAutoString host;
PRInt32 port = -1;
PRBool usingSSL = PR_FALSE;
rv = mURI->SchemeIs("https", &usingSSL);
if (NS_FAILED(rv)) return rv;
rv = mURI->GetAsciiHost(host);
if (NS_FAILED(rv)) return rv;
// Reject the URL if it doesn't specify a host
if (host.IsEmpty())
return NS_ERROR_MALFORMED_URI;
rv = mURI->GetPort(&port);
if (NS_FAILED(rv)) return rv;
LOG(("host=%s port=%d\n", host.get(), port));
rv = mURI->GetAsciiSpec(mSpec);
if (NS_FAILED(rv)) return rv;
LOG(("uri=%s\n", mSpec.get()));
mConnectionInfo = new nsHttpConnectionInfo(host, port,
aProxyInfo, usingSSL);
if (!mConnectionInfo)
return NS_ERROR_OUT_OF_MEMORY;
// Set default request method
mRequestHead.SetMethod(nsHttp::Get);
// Set request headers
nsCAutoString hostLine;
rv = nsHttpHandler::GenerateHostPort(host, port, hostLine);
if (NS_FAILED(rv)) return rv;
rv = mRequestHead.SetHeader(nsHttp::Host, hostLine);
if (NS_FAILED(rv)) return rv;
rv = gHttpHandler->
AddStandardRequestHeaders(&mRequestHead.Headers(), aCaps,
!mConnectionInfo->UsingSSL() &&
mConnectionInfo->UsingHttpProxy());
return rv;
}
//-----------------------------------------------------------------------------
// HttpBaseChannel::nsISupports
//-----------------------------------------------------------------------------
NS_IMPL_ISUPPORTS_INHERITED8(HttpBaseChannel,
nsHashPropertyBag,
nsIRequest,
nsIChannel,
nsIEncodedChannel,
nsIHttpChannel,
nsIHttpChannelInternal,
nsIUploadChannel,
nsIUploadChannel2,
nsISupportsPriority)
//-----------------------------------------------------------------------------
// HttpBaseChannel::nsIRequest
//-----------------------------------------------------------------------------
NS_IMETHODIMP
HttpBaseChannel::GetName(nsACString& aName)
{
aName = mSpec;
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::IsPending(PRBool *aIsPending)
{
NS_ENSURE_ARG_POINTER(aIsPending);
*aIsPending = mIsPending;
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetStatus(nsresult *aStatus)
{
NS_ENSURE_ARG_POINTER(aStatus);
*aStatus = mStatus;
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetLoadGroup(nsILoadGroup **aLoadGroup)
{
NS_ENSURE_ARG_POINTER(aLoadGroup);
*aLoadGroup = mLoadGroup;
NS_IF_ADDREF(*aLoadGroup);
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::SetLoadGroup(nsILoadGroup *aLoadGroup)
{
mLoadGroup = aLoadGroup;
mProgressSink = nsnull;
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetLoadFlags(nsLoadFlags *aLoadFlags)
{
NS_ENSURE_ARG_POINTER(aLoadFlags);
*aLoadFlags = mLoadFlags;
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::SetLoadFlags(nsLoadFlags aLoadFlags)
{
mLoadFlags = aLoadFlags;
return NS_OK;
}
//-----------------------------------------------------------------------------
// HttpBaseChannel::nsIChannel
//-----------------------------------------------------------------------------
NS_IMETHODIMP
HttpBaseChannel::GetOriginalURI(nsIURI **aOriginalURI)
{
NS_ENSURE_ARG_POINTER(aOriginalURI);
*aOriginalURI = mOriginalURI;
NS_ADDREF(*aOriginalURI);
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::SetOriginalURI(nsIURI *aOriginalURI)
{
ENSURE_CALLED_BEFORE_ASYNC_OPEN();
NS_ENSURE_ARG_POINTER(aOriginalURI);
mOriginalURI = aOriginalURI;
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetURI(nsIURI **aURI)
{
NS_ENSURE_ARG_POINTER(aURI);
*aURI = mURI;
NS_ADDREF(*aURI);
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetOwner(nsISupports **aOwner)
{
NS_ENSURE_ARG_POINTER(aOwner);
*aOwner = mOwner;
NS_IF_ADDREF(*aOwner);
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::SetOwner(nsISupports *aOwner)
{
mOwner = aOwner;
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetNotificationCallbacks(nsIInterfaceRequestor **aCallbacks)
{
*aCallbacks = mCallbacks;
NS_IF_ADDREF(*aCallbacks);
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::SetNotificationCallbacks(nsIInterfaceRequestor *aCallbacks)
{
mCallbacks = aCallbacks;
mProgressSink = nsnull;
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetContentType(nsACString& aContentType)
{
if (!mResponseHead) {
aContentType.Truncate();
return NS_ERROR_NOT_AVAILABLE;
}
if (!mResponseHead->ContentType().IsEmpty()) {
aContentType = mResponseHead->ContentType();
return NS_OK;
}
aContentType.AssignLiteral(UNKNOWN_CONTENT_TYPE);
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::SetContentType(const nsACString& aContentType)
{
if (mListener || mWasOpened) {
if (!mResponseHead)
return NS_ERROR_NOT_AVAILABLE;
nsCAutoString contentTypeBuf, charsetBuf;
PRBool hadCharset;
net_ParseContentType(aContentType, contentTypeBuf, charsetBuf, &hadCharset);
mResponseHead->SetContentType(contentTypeBuf);
// take care not to stomp on an existing charset
if (hadCharset)
mResponseHead->SetContentCharset(charsetBuf);
} else {
// We are being given a content-type hint.
PRBool dummy;
net_ParseContentType(aContentType, mContentTypeHint, mContentCharsetHint,
&dummy);
}
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetContentCharset(nsACString& aContentCharset)
{
if (!mResponseHead)
return NS_ERROR_NOT_AVAILABLE;
aContentCharset = mResponseHead->ContentCharset();
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::SetContentCharset(const nsACString& aContentCharset)
{
if (mListener) {
if (!mResponseHead)
return NS_ERROR_NOT_AVAILABLE;
mResponseHead->SetContentCharset(aContentCharset);
} else {
// Charset hint
mContentCharsetHint = aContentCharset;
}
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetContentLength(PRInt32 *aContentLength)
{
NS_ENSURE_ARG_POINTER(aContentLength);
if (!mResponseHead)
return NS_ERROR_NOT_AVAILABLE;
// XXX truncates to 32 bit
*aContentLength = mResponseHead->ContentLength();
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::SetContentLength(PRInt32 value)
{
NS_NOTYETIMPLEMENTED("HttpBaseChannel::SetContentLength");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
HttpBaseChannel::Open(nsIInputStream **aResult)
{
NS_ENSURE_TRUE(!mWasOpened, NS_ERROR_IN_PROGRESS);
return NS_ImplementChannelOpen(this, aResult);
}
//-----------------------------------------------------------------------------
// HttpBaseChannel::nsIUploadChannel
//-----------------------------------------------------------------------------
NS_IMETHODIMP
HttpBaseChannel::GetUploadStream(nsIInputStream **stream)
{
NS_ENSURE_ARG_POINTER(stream);
*stream = mUploadStream;
NS_IF_ADDREF(*stream);
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::SetUploadStream(nsIInputStream *stream,
const nsACString &contentType,
PRInt32 contentLength)
{
// NOTE: for backwards compatibility and for compatibility with old style
// plugins, |stream| may include headers, specifically Content-Type and
// Content-Length headers. in this case, |contentType| and |contentLength|
// would be unspecified. this is traditionally the case of a POST request,
// and so we select POST as the request method if contentType and
// contentLength are unspecified.
if (stream) {
if (contentType.IsEmpty()) {
mUploadStreamHasHeaders = PR_TRUE;
mRequestHead.SetMethod(nsHttp::Post); // POST request
} else {
if (contentLength < 0) {
// Not really kosher to assume Available == total length of
// stream, but apparently works for the streams we see here.
stream->Available((PRUint32 *) &contentLength);
if (contentLength < 0) {
NS_ERROR("unable to determine content length");
return NS_ERROR_FAILURE;
}
}
// SetRequestHeader propagates headers to chrome if HttpChannelChild
nsCAutoString contentLengthStr;
contentLengthStr.AppendInt(PRInt64(contentLength));
SetRequestHeader(NS_LITERAL_CSTRING("Content-Length"), contentLengthStr,
PR_FALSE);
SetRequestHeader(NS_LITERAL_CSTRING("Content-Type"), contentType,
PR_FALSE);
mUploadStreamHasHeaders = PR_FALSE;
mRequestHead.SetMethod(nsHttp::Put); // PUT request
}
} else {
mUploadStreamHasHeaders = PR_FALSE;
mRequestHead.SetMethod(nsHttp::Get); // revert to GET request
}
mUploadStream = stream;
return NS_OK;
}
//-----------------------------------------------------------------------------
// HttpBaseChannel::nsIUploadChannel2
//-----------------------------------------------------------------------------
NS_IMETHODIMP
HttpBaseChannel::ExplicitSetUploadStream(nsIInputStream *aStream,
const nsACString &aContentType,
PRInt64 aContentLength,
const nsACString &aMethod,
PRBool aStreamHasHeaders)
{
// Ensure stream is set and method is valid
NS_ENSURE_TRUE(aStream, NS_ERROR_FAILURE);
if (aContentLength < 0 && !aStreamHasHeaders) {
PRUint32 streamLength;
aStream->Available(&streamLength);
aContentLength = streamLength;
if (aContentLength < 0) {
NS_ERROR("unable to determine content length");
return NS_ERROR_FAILURE;
}
}
nsresult rv = SetRequestMethod(aMethod);
NS_ENSURE_SUCCESS(rv, rv);
if (!aStreamHasHeaders) {
// SetRequestHeader propagates headers to chrome if HttpChannelChild
nsCAutoString contentLengthStr;
contentLengthStr.AppendInt(aContentLength);
SetRequestHeader(NS_LITERAL_CSTRING("Content-Length"), contentLengthStr,
PR_FALSE);
SetRequestHeader(NS_LITERAL_CSTRING("Content-Type"), aContentType,
PR_FALSE);
}
mUploadStreamHasHeaders = aStreamHasHeaders;
mUploadStream = aStream;
return NS_OK;
}
//-----------------------------------------------------------------------------
// HttpBaseChannel::nsIEncodedChannel
//-----------------------------------------------------------------------------
NS_IMETHODIMP
HttpBaseChannel::GetApplyConversion(PRBool *value)
{
*value = mApplyConversion;
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::SetApplyConversion(PRBool value)
{
LOG(("HttpBaseChannel::SetApplyConversion [this=%p value=%d]\n", this, value));
mApplyConversion = value;
return NS_OK;
}
nsresult
HttpBaseChannel::ApplyContentConversions()
{
if (!mResponseHead)
return NS_OK;
LOG(("HttpBaseChannel::ApplyContentConversions [this=%p]\n", this));
if (!mApplyConversion) {
LOG(("not applying conversion per mApplyConversion\n"));
return NS_OK;
}
const char *val = mResponseHead->PeekHeader(nsHttp::Content_Encoding);
if (gHttpHandler->IsAcceptableEncoding(val)) {
nsCOMPtr<nsIStreamConverterService> serv;
nsresult rv = gHttpHandler->
GetStreamConverterService(getter_AddRefs(serv));
// we won't fail to load the page just because we couldn't load the
// stream converter service.. carry on..
if (NS_SUCCEEDED(rv)) {
nsCOMPtr<nsIStreamListener> converter;
nsCAutoString from(val);
ToLowerCase(from);
rv = serv->AsyncConvertData(from.get(),
"uncompressed",
mListener,
mListenerContext,
getter_AddRefs(converter));
if (NS_SUCCEEDED(rv)) {
LOG(("converter installed from \'%s\' to \'uncompressed\'\n", val));
mListener = converter;
}
}
} else if (val != nsnull) {
LOG(("Unknown content encoding '%s', ignoring\n", val));
}
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetContentEncodings(nsIUTF8StringEnumerator** aEncodings)
{
if (!mResponseHead) {
*aEncodings = nsnull;
return NS_OK;
}
const char *encoding = mResponseHead->PeekHeader(nsHttp::Content_Encoding);
if (!encoding) {
*aEncodings = nsnull;
return NS_OK;
}
nsContentEncodings* enumerator = new nsContentEncodings(this, encoding);
NS_ADDREF(*aEncodings = enumerator);
return NS_OK;
}
//-----------------------------------------------------------------------------
// HttpBaseChannel::nsContentEncodings <public>
//-----------------------------------------------------------------------------
HttpBaseChannel::nsContentEncodings::nsContentEncodings(nsIHttpChannel* aChannel,
const char* aEncodingHeader)
: mEncodingHeader(aEncodingHeader)
, mChannel(aChannel)
, mReady(PR_FALSE)
{
mCurEnd = aEncodingHeader + strlen(aEncodingHeader);
mCurStart = mCurEnd;
}
HttpBaseChannel::nsContentEncodings::~nsContentEncodings()
{
}
//-----------------------------------------------------------------------------
// HttpBaseChannel::nsContentEncodings::nsISimpleEnumerator
//-----------------------------------------------------------------------------
NS_IMETHODIMP
HttpBaseChannel::nsContentEncodings::HasMore(PRBool* aMoreEncodings)
{
if (mReady) {
*aMoreEncodings = PR_TRUE;
return NS_OK;
}
nsresult rv = PrepareForNext();
*aMoreEncodings = NS_SUCCEEDED(rv);
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::nsContentEncodings::GetNext(nsACString& aNextEncoding)
{
aNextEncoding.Truncate();
if (!mReady) {
nsresult rv = PrepareForNext();
if (NS_FAILED(rv)) {
return NS_ERROR_FAILURE;
}
}
const nsACString & encoding = Substring(mCurStart, mCurEnd);
nsACString::const_iterator start, end;
encoding.BeginReading(start);
encoding.EndReading(end);
PRBool haveType = PR_FALSE;
if (CaseInsensitiveFindInReadable(NS_LITERAL_CSTRING("gzip"), start, end)) {
aNextEncoding.AssignLiteral(APPLICATION_GZIP);
haveType = PR_TRUE;
}
if (!haveType) {
encoding.BeginReading(start);
if (CaseInsensitiveFindInReadable(NS_LITERAL_CSTRING("compress"), start, end)) {
aNextEncoding.AssignLiteral(APPLICATION_COMPRESS);
haveType = PR_TRUE;
}
}
if (!haveType) {
encoding.BeginReading(start);
if (CaseInsensitiveFindInReadable(NS_LITERAL_CSTRING("deflate"), start, end)) {
aNextEncoding.AssignLiteral(APPLICATION_ZIP);
haveType = PR_TRUE;
}
}
// Prepare to fetch the next encoding
mCurEnd = mCurStart;
mReady = PR_FALSE;
if (haveType)
return NS_OK;
NS_WARNING("Unknown encoding type");
return NS_ERROR_FAILURE;
}
//-----------------------------------------------------------------------------
// HttpBaseChannel::nsContentEncodings::nsISupports
//-----------------------------------------------------------------------------
NS_IMPL_ISUPPORTS1(HttpBaseChannel::nsContentEncodings, nsIUTF8StringEnumerator)
//-----------------------------------------------------------------------------
// HttpBaseChannel::nsContentEncodings <private>
//-----------------------------------------------------------------------------
nsresult
HttpBaseChannel::nsContentEncodings::PrepareForNext(void)
{
NS_ASSERTION(mCurStart == mCurEnd, "Indeterminate state");
// At this point both mCurStart and mCurEnd point to somewhere
// past the end of the next thing we want to return
while (mCurEnd != mEncodingHeader) {
--mCurEnd;
if (*mCurEnd != ',' && !nsCRT::IsAsciiSpace(*mCurEnd))
break;
}
if (mCurEnd == mEncodingHeader)
return NS_ERROR_NOT_AVAILABLE; // no more encodings
++mCurEnd;
// At this point mCurEnd points to the first char _after_ the
// header we want. Furthermore, mCurEnd - 1 != mEncodingHeader
mCurStart = mCurEnd - 1;
while (mCurStart != mEncodingHeader &&
*mCurStart != ',' && !nsCRT::IsAsciiSpace(*mCurStart))
--mCurStart;
if (*mCurStart == ',' || nsCRT::IsAsciiSpace(*mCurStart))
++mCurStart; // we stopped because of a weird char, so move up one
// At this point mCurStart and mCurEnd bracket the encoding string
// we want. Check that it's not "identity"
if (Substring(mCurStart, mCurEnd).Equals("identity",
nsCaseInsensitiveCStringComparator())) {
mCurEnd = mCurStart;
return PrepareForNext();
}
mReady = PR_TRUE;
return NS_OK;
}
//-----------------------------------------------------------------------------
// HttpBaseChannel::nsIHttpChannel
//-----------------------------------------------------------------------------
NS_IMETHODIMP
HttpBaseChannel::GetRequestMethod(nsACString& aMethod)
{
aMethod = mRequestHead.Method();
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::SetRequestMethod(const nsACString& aMethod)
{
ENSURE_CALLED_BEFORE_ASYNC_OPEN();
const nsCString& flatMethod = PromiseFlatCString(aMethod);
// Method names are restricted to valid HTTP tokens.
if (!nsHttp::IsValidToken(flatMethod))
return NS_ERROR_INVALID_ARG;
nsHttpAtom atom = nsHttp::ResolveAtom(flatMethod.get());
if (!atom)
return NS_ERROR_FAILURE;
mRequestHead.SetMethod(atom);
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetReferrer(nsIURI **referrer)
{
NS_ENSURE_ARG_POINTER(referrer);
*referrer = mReferrer;
NS_IF_ADDREF(*referrer);
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::SetReferrer(nsIURI *referrer)
{
ENSURE_CALLED_BEFORE_ASYNC_OPEN();
// clear existing referrer, if any
mReferrer = nsnull;
mRequestHead.ClearHeader(nsHttp::Referer);
if (!referrer)
return NS_OK;
// check referrer blocking pref
PRUint32 referrerLevel;
if (mLoadFlags & LOAD_INITIAL_DOCUMENT_URI)
referrerLevel = 1; // user action
else
referrerLevel = 2; // inline content
if (gHttpHandler->ReferrerLevel() < referrerLevel)
return NS_OK;
nsCOMPtr<nsIURI> referrerGrip;
nsresult rv;
PRBool match;
//
// Strip off "wyciwyg://123/" from wyciwyg referrers.
//
// XXX this really belongs elsewhere since wyciwyg URLs aren't part of necko.
// perhaps some sort of generic nsINestedURI could be used. then, if an URI
// fails the whitelist test, then we could check for an inner URI and try
// that instead. though, that might be too automatic.
//
rv = referrer->SchemeIs("wyciwyg", &match);
if (NS_FAILED(rv)) return rv;
if (match) {
nsCAutoString path;
rv = referrer->GetPath(path);
if (NS_FAILED(rv)) return rv;
PRUint32 pathLength = path.Length();
if (pathLength <= 2) return NS_ERROR_FAILURE;
// Path is of the form "//123/http://foo/bar", with a variable number of digits.
// To figure out where the "real" URL starts, search path for a '/', starting at
// the third character.
PRInt32 slashIndex = path.FindChar('/', 2);
if (slashIndex == kNotFound) return NS_ERROR_FAILURE;
// Get the charset of the original URI so we can pass it to our fixed up URI.
nsCAutoString charset;
referrer->GetOriginCharset(charset);
// Replace |referrer| with a URI without wyciwyg://123/.
rv = NS_NewURI(getter_AddRefs(referrerGrip),
Substring(path, slashIndex + 1, pathLength - slashIndex - 1),
charset.get());
if (NS_FAILED(rv)) return rv;
referrer = referrerGrip.get();
}
//
// block referrer if not on our white list...
//
static const char *const referrerWhiteList[] = {
"http",
"https",
"ftp",
"gopher",
nsnull
};
match = PR_FALSE;
const char *const *scheme = referrerWhiteList;
for (; *scheme && !match; ++scheme) {
rv = referrer->SchemeIs(*scheme, &match);
if (NS_FAILED(rv)) return rv;
}
if (!match)
return NS_OK; // kick out....
//
// Handle secure referrals.
//
// Support referrals from a secure server if this is a secure site
// and (optionally) if the host names are the same.
//
rv = referrer->SchemeIs("https", &match);
if (NS_FAILED(rv)) return rv;
if (match) {
rv = mURI->SchemeIs("https", &match);
if (NS_FAILED(rv)) return rv;
if (!match)
return NS_OK;
if (!gHttpHandler->SendSecureXSiteReferrer()) {
nsCAutoString referrerHost;
nsCAutoString host;
rv = referrer->GetAsciiHost(referrerHost);
if (NS_FAILED(rv)) return rv;
rv = mURI->GetAsciiHost(host);
if (NS_FAILED(rv)) return rv;
// GetAsciiHost returns lowercase hostname.
if (!referrerHost.Equals(host))
return NS_OK;
}
}
nsCOMPtr<nsIURI> clone;
//
// we need to clone the referrer, so we can:
// (1) modify it
// (2) keep a reference to it after returning from this function
//
rv = referrer->Clone(getter_AddRefs(clone));
if (NS_FAILED(rv)) return rv;
// strip away any userpass; we don't want to be giving out passwords ;-)
clone->SetUserPass(EmptyCString());
// strip away any fragment per RFC 2616 section 14.36
nsCOMPtr<nsIURL> url = do_QueryInterface(clone);
if (url)
url->SetRef(EmptyCString());
nsCAutoString spec;
rv = clone->GetAsciiSpec(spec);
if (NS_FAILED(rv)) return rv;
// finally, remember the referrer URI and set the Referer header.
mReferrer = clone;
mRequestHead.SetHeader(nsHttp::Referer, spec);
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetRequestHeader(const nsACString& aHeader,
nsACString& aValue)
{
// XXX might be better to search the header list directly instead of
// hitting the http atom hash table.
nsHttpAtom atom = nsHttp::ResolveAtom(aHeader);
if (!atom)
return NS_ERROR_NOT_AVAILABLE;
return mRequestHead.GetHeader(atom, aValue);
}
NS_IMETHODIMP
HttpBaseChannel::SetRequestHeader(const nsACString& aHeader,
const nsACString& aValue,
PRBool aMerge)
{
const nsCString &flatHeader = PromiseFlatCString(aHeader);
const nsCString &flatValue = PromiseFlatCString(aValue);
LOG(("HttpBaseChannel::SetRequestHeader [this=%p header=\"%s\" value=\"%s\" merge=%u]\n",
this, flatHeader.get(), flatValue.get(), aMerge));
// Header names are restricted to valid HTTP tokens.
if (!nsHttp::IsValidToken(flatHeader))
return NS_ERROR_INVALID_ARG;
// Header values MUST NOT contain line-breaks. RFC 2616 technically
// permits CTL characters, including CR and LF, in header values provided
// they are quoted. However, this can lead to problems if servers do not
// interpret quoted strings properly. Disallowing CR and LF here seems
// reasonable and keeps things simple. We also disallow a null byte.
if (flatValue.FindCharInSet("\r\n") != kNotFound ||
flatValue.Length() != strlen(flatValue.get()))
return NS_ERROR_INVALID_ARG;
nsHttpAtom atom = nsHttp::ResolveAtom(flatHeader.get());
if (!atom) {
NS_WARNING("failed to resolve atom");
return NS_ERROR_NOT_AVAILABLE;
}
return mRequestHead.SetHeader(atom, flatValue, aMerge);
}
NS_IMETHODIMP
HttpBaseChannel::VisitRequestHeaders(nsIHttpHeaderVisitor *visitor)
{
return mRequestHead.Headers().VisitHeaders(visitor);
}
NS_IMETHODIMP
HttpBaseChannel::GetResponseHeader(const nsACString &header, nsACString &value)
{
if (!mResponseHead)
return NS_ERROR_NOT_AVAILABLE;
nsHttpAtom atom = nsHttp::ResolveAtom(header);
if (!atom)
return NS_ERROR_NOT_AVAILABLE;
return mResponseHead->GetHeader(atom, value);
}
NS_IMETHODIMP
HttpBaseChannel::SetResponseHeader(const nsACString& header,
const nsACString& value,
PRBool merge)
{
LOG(("HttpBaseChannel::SetResponseHeader [this=%p header=\"%s\" value=\"%s\" merge=%u]\n",
this, PromiseFlatCString(header).get(), PromiseFlatCString(value).get(), merge));
if (!mResponseHead)
return NS_ERROR_NOT_AVAILABLE;
nsHttpAtom atom = nsHttp::ResolveAtom(header);
if (!atom)
return NS_ERROR_NOT_AVAILABLE;
// these response headers must not be changed
if (atom == nsHttp::Content_Type ||
atom == nsHttp::Content_Length ||
atom == nsHttp::Content_Encoding ||
atom == nsHttp::Trailer ||
atom == nsHttp::Transfer_Encoding)
return NS_ERROR_ILLEGAL_VALUE;
mResponseHeadersModified = PR_TRUE;
return mResponseHead->SetHeader(atom, value, merge);
}
NS_IMETHODIMP
HttpBaseChannel::VisitResponseHeaders(nsIHttpHeaderVisitor *visitor)
{
if (!mResponseHead)
return NS_ERROR_NOT_AVAILABLE;
return mResponseHead->Headers().VisitHeaders(visitor);
}
NS_IMETHODIMP
HttpBaseChannel::GetAllowPipelining(PRBool *value)
{
NS_ENSURE_ARG_POINTER(value);
*value = mAllowPipelining;
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::SetAllowPipelining(PRBool value)
{
ENSURE_CALLED_BEFORE_ASYNC_OPEN();
mAllowPipelining = value;
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetRedirectionLimit(PRUint32 *value)
{
NS_ENSURE_ARG_POINTER(value);
*value = mRedirectionLimit;
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::SetRedirectionLimit(PRUint32 value)
{
ENSURE_CALLED_BEFORE_ASYNC_OPEN();
mRedirectionLimit = PR_MIN(value, 0xff);
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::IsNoStoreResponse(PRBool *value)
{
if (!mResponseHead)
return NS_ERROR_NOT_AVAILABLE;
*value = mResponseHead->NoStore();
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::IsNoCacheResponse(PRBool *value)
{
if (!mResponseHead)
return NS_ERROR_NOT_AVAILABLE;
*value = mResponseHead->NoCache();
if (!*value)
*value = mResponseHead->ExpiresInPast();
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetResponseStatus(PRUint32 *aValue)
{
if (!mResponseHead)
return NS_ERROR_NOT_AVAILABLE;
*aValue = mResponseHead->Status();
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetResponseStatusText(nsACString& aValue)
{
if (!mResponseHead)
return NS_ERROR_NOT_AVAILABLE;
aValue = mResponseHead->StatusText();
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetRequestSucceeded(PRBool *aValue)
{
if (!mResponseHead)
return NS_ERROR_NOT_AVAILABLE;
PRUint32 status = mResponseHead->Status();
*aValue = (status / 100 == 2);
return NS_OK;
}
//-----------------------------------------------------------------------------
// HttpBaseChannel::nsIHttpChannelInternal
//-----------------------------------------------------------------------------
NS_IMETHODIMP
HttpBaseChannel::GetDocumentURI(nsIURI **aDocumentURI)
{
NS_ENSURE_ARG_POINTER(aDocumentURI);
*aDocumentURI = mDocumentURI;
NS_IF_ADDREF(*aDocumentURI);
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::SetDocumentURI(nsIURI *aDocumentURI)
{
ENSURE_CALLED_BEFORE_ASYNC_OPEN();
mDocumentURI = aDocumentURI;
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetRequestVersion(PRUint32 *major, PRUint32 *minor)
{
nsHttpVersion version = mRequestHead.Version();
if (major) { *major = version / 10; }
if (minor) { *minor = version % 10; }
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetResponseVersion(PRUint32 *major, PRUint32 *minor)
{
if (!mResponseHead)
{
*major = *minor = 0; // we should at least be kind about it
return NS_ERROR_NOT_AVAILABLE;
}
nsHttpVersion version = mResponseHead->Version();
if (major) { *major = version / 10; }
if (minor) { *minor = version % 10; }
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::SetCookie(const char *aCookieHeader)
{
if (mLoadFlags & LOAD_ANONYMOUS)
return NS_OK;
// empty header isn't an error
if (!(aCookieHeader && *aCookieHeader))
return NS_OK;
nsICookieService *cs = gHttpHandler->GetCookieService();
NS_ENSURE_TRUE(cs, NS_ERROR_FAILURE);
return cs->SetCookieStringFromHttp(mURI, nsnull, nsnull, aCookieHeader,
mResponseHead->PeekHeader(nsHttp::Date),
this);
}
NS_IMETHODIMP
HttpBaseChannel::GetForceAllowThirdPartyCookie(PRBool *aForce)
{
*aForce = mForceAllowThirdPartyCookie;
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::SetForceAllowThirdPartyCookie(PRBool aForce)
{
ENSURE_CALLED_BEFORE_ASYNC_OPEN();
mForceAllowThirdPartyCookie = aForce;
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetCanceled(PRBool *aCanceled)
{
*aCanceled = mCanceled;
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::GetChannelIsForDownload(PRBool *aChannelIsForDownload)
{
*aChannelIsForDownload = mChannelIsForDownload;
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::SetChannelIsForDownload(PRBool aChannelIsForDownload)
{
mChannelIsForDownload = aChannelIsForDownload;
return NS_OK;
}
//-----------------------------------------------------------------------------
// HttpBaseChannel::nsISupportsPriority
//-----------------------------------------------------------------------------
NS_IMETHODIMP
HttpBaseChannel::GetPriority(PRInt32 *value)
{
*value = mPriority;
return NS_OK;
}
NS_IMETHODIMP
HttpBaseChannel::AdjustPriority(PRInt32 delta)
{
return SetPriority(mPriority + delta);
}
//-----------------------------------------------------------------------------
// HttpBaseChannel::nsIResumableChannel
//-----------------------------------------------------------------------------
NS_IMETHODIMP
HttpBaseChannel::GetEntityID(nsACString& aEntityID)
{
// Don't return an entity ID for Non-GET requests which require
// additional data
if (mRequestHead.Method() != nsHttp::Get) {
return NS_ERROR_NOT_RESUMABLE;
}
// Don't return an entity if the server sent the following header:
// Accept-Ranges: none
// Not sending the Accept-Ranges header means we can still try
// sending range requests.
const char* acceptRanges =
mResponseHead->PeekHeader(nsHttp::Accept_Ranges);
if (acceptRanges &&
!nsHttp::FindToken(acceptRanges, "bytes", HTTP_HEADER_VALUE_SEPS)) {
return NS_ERROR_NOT_RESUMABLE;
}
PRUint64 size = LL_MAXUINT;
nsCAutoString etag, lastmod;
if (mResponseHead) {
size = mResponseHead->TotalEntitySize();
const char* cLastMod = mResponseHead->PeekHeader(nsHttp::Last_Modified);
if (cLastMod)
lastmod = cLastMod;
const char* cEtag = mResponseHead->PeekHeader(nsHttp::ETag);
if (cEtag)
etag = cEtag;
}
nsCString entityID;
NS_EscapeURL(etag.BeginReading(), etag.Length(), esc_AlwaysCopy |
esc_FileBaseName | esc_Forced, entityID);
entityID.Append('/');
entityID.AppendInt(PRInt64(size));
entityID.Append('/');
entityID.Append(lastmod);
// NOTE: Appending lastmod as the last part avoids having to escape it
aEntityID = entityID;
return NS_OK;
}
//------------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// HttpBaseChannel helpers
//-----------------------------------------------------------------------------
void
HttpBaseChannel::AddCookiesToRequest()
{
if (mLoadFlags & LOAD_ANONYMOUS) {
return;
}
bool useCookieService =
#ifdef MOZ_IPC
(XRE_GetProcessType() == GeckoProcessType_Default);
#else
PR_TRUE;
#endif
nsXPIDLCString cookie;
if (useCookieService) {
nsICookieService *cs = gHttpHandler->GetCookieService();
if (cs) {
cs->GetCookieStringFromHttp(mURI,
nsnull,
this, getter_Copies(cookie));
}
if (cookie.IsEmpty()) {
cookie = mUserSetCookieHeader;
}
else if (!mUserSetCookieHeader.IsEmpty()) {
cookie.Append(NS_LITERAL_CSTRING("; ") + mUserSetCookieHeader);
}
}
else {
cookie = mUserSetCookieHeader;
}
// If we are in the child process, we want the parent seeing any
// cookie headers that might have been set by SetRequestHeader()
SetRequestHeader(nsDependentCString(nsHttp::Cookie), cookie, PR_FALSE);
}
static PLDHashOperator
CopyProperties(const nsAString& aKey, nsIVariant *aData, void *aClosure)
{
nsIWritablePropertyBag* bag = static_cast<nsIWritablePropertyBag*>
(aClosure);
bag->SetProperty(aKey, aData);
return PL_DHASH_NEXT;
}
nsresult
HttpBaseChannel::SetupReplacementChannel(nsIURI *newURI,
nsIChannel *newChannel,
PRBool preserveMethod)
{
LOG(("HttpBaseChannel::SetupReplacementChannel "
"[this=%p newChannel=%p preserveMethod=%d]",
this, newChannel, preserveMethod));
PRUint32 newLoadFlags = mLoadFlags | LOAD_REPLACE;
// if the original channel was using SSL and this channel is not using
// SSL, then no need to inhibit persistent caching. however, if the
// original channel was not using SSL and has INHIBIT_PERSISTENT_CACHING
// set, then allow the flag to apply to the redirected channel as well.
// since we force set INHIBIT_PERSISTENT_CACHING on all HTTPS channels,
// we only need to check if the original channel was using SSL.
if (mConnectionInfo->UsingSSL())
newLoadFlags &= ~INHIBIT_PERSISTENT_CACHING;
// Do not pass along LOAD_CHECK_OFFLINE_CACHE
newLoadFlags &= ~nsICachingChannel::LOAD_CHECK_OFFLINE_CACHE;
newChannel->SetLoadGroup(mLoadGroup);
newChannel->SetNotificationCallbacks(mCallbacks);
newChannel->SetLoadFlags(newLoadFlags);
nsCOMPtr<nsIHttpChannel> httpChannel = do_QueryInterface(newChannel);
if (!httpChannel)
return NS_OK; // no other options to set
if (preserveMethod) {
nsCOMPtr<nsIUploadChannel> uploadChannel =
do_QueryInterface(httpChannel);
nsCOMPtr<nsIUploadChannel2> uploadChannel2 =
do_QueryInterface(httpChannel);
if (mUploadStream && (uploadChannel2 || uploadChannel)) {
// rewind upload stream
nsCOMPtr<nsISeekableStream> seekable = do_QueryInterface(mUploadStream);
if (seekable)
seekable->Seek(nsISeekableStream::NS_SEEK_SET, 0);
// replicate original call to SetUploadStream...
if (uploadChannel2) {
const char *ctype = mRequestHead.PeekHeader(nsHttp::Content_Type);
if (!ctype)
ctype = "";
const char *clen = mRequestHead.PeekHeader(nsHttp::Content_Length);
PRInt64 len = clen ? nsCRT::atoll(clen) : -1;
uploadChannel2->ExplicitSetUploadStream(
mUploadStream, nsDependentCString(ctype), len,
nsDependentCString(mRequestHead.Method()),
mUploadStreamHasHeaders);
} else {
if (mUploadStreamHasHeaders) {
uploadChannel->SetUploadStream(mUploadStream, EmptyCString(),
-1);
} else {
const char *ctype =
mRequestHead.PeekHeader(nsHttp::Content_Type);
const char *clen =
mRequestHead.PeekHeader(nsHttp::Content_Length);
if (!ctype) {
ctype = "application/octet-stream";
}
if (clen) {
uploadChannel->SetUploadStream(mUploadStream,
nsDependentCString(ctype),
atoi(clen));
}
}
}
}
// since preserveMethod is true, we need to ensure that the appropriate
// request method gets set on the channel, regardless of whether or not
// we set the upload stream above. This means SetRequestMethod() will
// be called twice if ExplicitSetUploadStream() gets called above.
httpChannel->SetRequestMethod(nsDependentCString(mRequestHead.Method()));
}
// convey the referrer if one was used for this channel to the next one
if (mReferrer)
httpChannel->SetReferrer(mReferrer);
// convey the mAllowPipelining flag
httpChannel->SetAllowPipelining(mAllowPipelining);
// convey the new redirection limit
httpChannel->SetRedirectionLimit(mRedirectionLimit - 1);
nsCOMPtr<nsIHttpChannelInternal> httpInternal = do_QueryInterface(newChannel);
if (httpInternal) {
// convey the mForceAllowThirdPartyCookie flag
httpInternal->SetForceAllowThirdPartyCookie(mForceAllowThirdPartyCookie);
// update the DocumentURI indicator since we are being redirected.
// if this was a top-level document channel, then the new channel
// should have its mDocumentURI point to newURI; otherwise, we
// just need to pass along our mDocumentURI to the new channel.
if (newURI && (mURI == mDocumentURI))
httpInternal->SetDocumentURI(newURI);
else
httpInternal->SetDocumentURI(mDocumentURI);
}
// transfer application cache information
nsCOMPtr<nsIApplicationCacheChannel> appCacheChannel =
do_QueryInterface(newChannel);
if (appCacheChannel) {
appCacheChannel->SetApplicationCache(mApplicationCache);
appCacheChannel->SetInheritApplicationCache(mInheritApplicationCache);
// We purposely avoid transfering mChooseApplicationCache.
}
// transfer any properties
nsCOMPtr<nsIWritablePropertyBag> bag(do_QueryInterface(newChannel));
if (bag)
mPropertyHash.EnumerateRead(CopyProperties, bag.get());
return NS_OK;
}
//------------------------------------------------------------------------------
} // namespace net
} // namespace mozilla
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