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netwerk/protocol/viewsource/nsViewSourceHandler.cpp@6474c204b198 (annotated)

netwerk/protocol/viewsource/nsViewSourceHandler.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:09:35 +0100

changeset 0

6474c204b198

permissions

-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0	1	/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0	2	/* vim:set ts=4 sw=4 sts=4 et: */
michael@0	3	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	4	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	5	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	6
michael@0	7	#include "nsViewSourceHandler.h"
michael@0	8	#include "nsViewSourceChannel.h"
michael@0	9	#include "nsNetUtil.h"
michael@0	10	#include "nsSimpleNestedURI.h"
michael@0	11
michael@0	12	#define VIEW_SOURCE "view-source"
michael@0	13
michael@0	14	////////////////////////////////////////////////////////////////////////////////
michael@0	15
michael@0	16	NS_IMPL_ISUPPORTS(nsViewSourceHandler, nsIProtocolHandler)
michael@0	17
michael@0	18	////////////////////////////////////////////////////////////////////////////////
michael@0	19	// nsIProtocolHandler methods:
michael@0	20
michael@0	21	NS_IMETHODIMP
michael@0	22	nsViewSourceHandler::GetScheme(nsACString &result)
michael@0	23	{
michael@0	24	result.AssignLiteral(VIEW_SOURCE);
michael@0	25	return NS_OK;
michael@0	26	}
michael@0	27
michael@0	28	NS_IMETHODIMP
michael@0	29	nsViewSourceHandler::GetDefaultPort(int32_t *result)
michael@0	30	{
michael@0	31	*result = -1;
michael@0	32	return NS_OK;
michael@0	33	}
michael@0	34
michael@0	35	NS_IMETHODIMP
michael@0	36	nsViewSourceHandler::GetProtocolFlags(uint32_t *result)
michael@0	37	{
michael@0	38	*result = URI_NORELATIVE | URI_NOAUTH | URI_LOADABLE_BY_ANYONE |
michael@0	39	URI_NON_PERSISTABLE;
michael@0	40	return NS_OK;
michael@0	41	}
michael@0	42
michael@0	43	NS_IMETHODIMP
michael@0	44	nsViewSourceHandler::NewURI(const nsACString &aSpec,
michael@0	45	const char *aCharset,
michael@0	46	nsIURI *aBaseURI,
michael@0	47	nsIURI **aResult)
michael@0	48	{
michael@0	49	*aResult = nullptr;
michael@0	50
michael@0	51	// Extract inner URL and normalize to ASCII. This is done to properly
michael@0	52	// support IDN in cases like "view-source:http://www.szalagavató.hu/"
michael@0	53
michael@0	54	int32_t colon = aSpec.FindChar(':');
michael@0	55	if (colon == kNotFound)
michael@0	56	return NS_ERROR_MALFORMED_URI;
michael@0	57
michael@0	58	nsCOMPtr<nsIURI> innerURI;
michael@0	59	nsresult rv = NS_NewURI(getter_AddRefs(innerURI),
michael@0	60	Substring(aSpec, colon + 1), aCharset, aBaseURI);
michael@0	61	if (NS_FAILED(rv))
michael@0	62	return rv;
michael@0	63
michael@0	64	nsAutoCString asciiSpec;
michael@0	65	rv = innerURI->GetAsciiSpec(asciiSpec);
michael@0	66	if (NS_FAILED(rv))
michael@0	67	return rv;
michael@0	68
michael@0	69	// put back our scheme and construct a simple-uri wrapper
michael@0	70
michael@0	71	asciiSpec.Insert(VIEW_SOURCE ":", 0);
michael@0	72
michael@0	73	// We can't swap() from an nsRefPtr<nsSimpleNestedURI> to an nsIURI**,
michael@0	74	// sadly.
michael@0	75	nsSimpleNestedURI* ourURI = new nsSimpleNestedURI(innerURI);
michael@0	76	nsCOMPtr<nsIURI> uri = ourURI;
michael@0	77	if (!uri)
michael@0	78	return NS_ERROR_OUT_OF_MEMORY;
michael@0	79
michael@0	80	rv = ourURI->SetSpec(asciiSpec);
michael@0	81	if (NS_FAILED(rv))
michael@0	82	return rv;
michael@0	83
michael@0	84	// Make the URI immutable so it's impossible to get it out of sync
michael@0	85	// with its inner URI.
michael@0	86	ourURI->SetMutable(false);
michael@0	87
michael@0	88	uri.swap(*aResult);
michael@0	89	return rv;
michael@0	90	}
michael@0	91
michael@0	92	NS_IMETHODIMP
michael@0	93	nsViewSourceHandler::NewChannel(nsIURI* uri, nsIChannel* *result)
michael@0	94	{
michael@0	95	NS_ENSURE_ARG_POINTER(uri);
michael@0	96	nsViewSourceChannel *channel = new nsViewSourceChannel();
michael@0	97	if (!channel)
michael@0	98	return NS_ERROR_OUT_OF_MEMORY;
michael@0	99	NS_ADDREF(channel);
michael@0	100
michael@0	101	nsresult rv = channel->Init(uri);
michael@0	102	if (NS_FAILED(rv)) {
michael@0	103	NS_RELEASE(channel);
michael@0	104	return rv;
michael@0	105	}
michael@0	106
michael@0	107	*result = static_cast<nsIViewSourceChannel*>(channel);
michael@0	108	return NS_OK;
michael@0	109	}
michael@0	110
michael@0	111	nsresult
michael@0	112	nsViewSourceHandler::NewSrcdocChannel(nsIURI* uri, const nsAString &srcdoc,
michael@0	113	nsIURI* baseURI, nsIChannel* *result)
michael@0	114	{
michael@0	115	NS_ENSURE_ARG_POINTER(uri);
michael@0	116	nsViewSourceChannel *channel = new nsViewSourceChannel();
michael@0	117	if (!channel)
michael@0	118	return NS_ERROR_OUT_OF_MEMORY;
michael@0	119	NS_ADDREF(channel);
michael@0	120
michael@0	121	nsresult rv = channel->InitSrcdoc(uri, srcdoc, baseURI);
michael@0	122	if (NS_FAILED(rv)) {
michael@0	123	NS_RELEASE(channel);
michael@0	124	return rv;
michael@0	125	}
michael@0	126
michael@0	127	*result = static_cast<nsIViewSourceChannel*>(channel);
michael@0	128	return NS_OK;
michael@0	129	}
michael@0	130
michael@0	131	NS_IMETHODIMP
michael@0	132	nsViewSourceHandler::AllowPort(int32_t port, const char *scheme, bool *_retval)
michael@0	133	{
michael@0	134	// don't override anything.
michael@0	135	*_retval = false;
michael@0	136	return NS_OK;
michael@0	137	}
michael@0	138
michael@0	139	nsViewSourceHandler::nsViewSourceHandler()
michael@0	140	{
michael@0	141	gInstance = this;
michael@0	142	}
michael@0	143
michael@0	144	nsViewSourceHandler::~nsViewSourceHandler()
michael@0	145	{
michael@0	146	gInstance = nullptr;
michael@0	147	}
michael@0	148
michael@0	149	nsViewSourceHandler* nsViewSourceHandler::gInstance = nullptr;
michael@0	150
michael@0	151	nsViewSourceHandler*
michael@0	152	nsViewSourceHandler::GetInstance()
michael@0	153	{
michael@0	154	return gInstance;
michael@0	155	}