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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/permissions/permission_service_impl.h"
#include "base/bind.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/permission_manager.h"
#include "content/public/browser/permission_type.h"
namespace content {
namespace {
PermissionType PermissionNameToPermissionType(PermissionName name) {
switch(name) {
case PERMISSION_NAME_GEOLOCATION:
return PermissionType::GEOLOCATION;
case PERMISSION_NAME_NOTIFICATIONS:
return PermissionType::NOTIFICATIONS;
case PERMISSION_NAME_PUSH_NOTIFICATIONS:
return PermissionType::PUSH_MESSAGING;
case PERMISSION_NAME_MIDI_SYSEX:
return PermissionType::MIDI_SYSEX;
case PERMISSION_NAME_PROTECTED_MEDIA_IDENTIFIER:
return PermissionType::PROTECTED_MEDIA_IDENTIFIER;
}
NOTREACHED();
return PermissionType::NUM;
}
} // anonymous namespace
PermissionServiceImpl::PendingRequest::PendingRequest(
PermissionType permission,
const GURL& origin,
const mojo::Callback<void(PermissionStatus)>& callback)
: permission(permission),
origin(origin),
callback(callback) {
}
PermissionServiceImpl::PendingRequest::~PendingRequest() {
if (!callback.is_null()) {
callback.Run(PERMISSION_STATUS_ASK);
}
}
PermissionServiceImpl::PermissionServiceImpl(PermissionServiceContext* context)
: context_(context),
weak_factory_(this) {
}
PermissionServiceImpl::~PermissionServiceImpl() {
}
void PermissionServiceImpl::OnConnectionError() {
context_->ServiceHadConnectionError(this);
// After that call, |this| will be deleted.
}
void PermissionServiceImpl::RequestPermission(
PermissionName permission,
const mojo::String& origin,
bool user_gesture,
const mojo::Callback<void(PermissionStatus)>& callback) {
// This condition is valid if the call is coming from a ChildThread instead of
// a RenderFrame. Some consumers of the service run in Workers and some in
// Frames. In the context of a Worker, it is not possible to show a
// permission prompt because there is no tab. In the context of a Frame, we
// can. Even if the call comes from a context where it is not possible to show
// any UI, we want to still return something relevant so the current
// permission status is returned.
if (!context_->web_contents()) {
// There is no way to show a UI so the call will simply return the current
// permission.
HasPermission(permission, origin, callback);
return;
}
BrowserContext* browser_context = context_->GetBrowserContext();
DCHECK(browser_context);
if (!browser_context->GetPermissionManager()) {
callback.Run(content::PERMISSION_STATUS_DENIED);
return;
}
PermissionType permission_type = PermissionNameToPermissionType(permission);
int request_id = pending_requests_.Add(
new PendingRequest(permission_type, GURL(origin), callback));
browser_context->GetPermissionManager()->RequestPermission(
permission_type,
context_->web_contents(),
request_id,
GURL(origin),
user_gesture, // TODO(mlamouri): should be removed (crbug.com/423770)
base::Bind(&PermissionServiceImpl::OnRequestPermissionResponse,
weak_factory_.GetWeakPtr(),
request_id));
}
void PermissionServiceImpl::OnRequestPermissionResponse(
int request_id,
PermissionStatus status) {
PendingRequest* request = pending_requests_.Lookup(request_id);
mojo::Callback<void(PermissionStatus)> callback(request->callback);
request->callback.reset();
pending_requests_.Remove(request_id);
callback.Run(status);
}
void PermissionServiceImpl::CancelPendingRequests() {
DCHECK(context_->web_contents());
DCHECK(context_->GetBrowserContext());
PermissionManager* permission_manager =
context_->GetBrowserContext()->GetPermissionManager();
if (!permission_manager)
return;
for (RequestsMap::Iterator<PendingRequest> it(&pending_requests_);
!it.IsAtEnd(); it.Advance()) {
permission_manager->CancelPermissionRequest(
it.GetCurrentValue()->permission,
context_->web_contents(),
it.GetCurrentKey(),
it.GetCurrentValue()->origin);
}
pending_requests_.Clear();
}
void PermissionServiceImpl::HasPermission(
PermissionName permission,
const mojo::String& origin,
const mojo::Callback<void(PermissionStatus)>& callback) {
DCHECK(context_->GetBrowserContext());
callback.Run(GetPermissionStatusFromName(permission, GURL(origin)));
}
void PermissionServiceImpl::RevokePermission(
PermissionName permission,
const mojo::String& origin,
const mojo::Callback<void(PermissionStatus)>& callback) {
GURL origin_url(origin);
PermissionType permission_type = PermissionNameToPermissionType(permission);
PermissionStatus status = GetPermissionStatusFromType(permission_type,
origin_url);
// Resetting the permission should only be possible if the permission is
// already granted.
if (status != PERMISSION_STATUS_GRANTED) {
callback.Run(status);
return;
}
ResetPermissionStatus(permission_type, origin_url);
callback.Run(GetPermissionStatusFromType(permission_type, origin_url));
}
void PermissionServiceImpl::GetNextPermissionChange(
PermissionName permission,
const mojo::String& origin,
PermissionStatus last_known_status,
const mojo::Callback<void(PermissionStatus)>& callback) {
PermissionStatus current_status =
GetPermissionStatusFromName(permission, GURL(origin));
if (current_status != last_known_status) {
callback.Run(current_status);
return;
}
BrowserContext* browser_context = context_->GetBrowserContext();
DCHECK(browser_context);
if (!browser_context->GetPermissionManager()) {
callback.Run(current_status);
return;
}
int* subscription_id = new int();
GURL embedding_origin = context_->GetEmbeddingOrigin();
*subscription_id =
browser_context->GetPermissionManager()->SubscribePermissionStatusChange(
PermissionNameToPermissionType(permission),
GURL(origin),
// If the embedding_origin is empty, we,ll use the |origin| instead.
embedding_origin.is_empty() ? GURL(origin) : embedding_origin,
base::Bind(&PermissionServiceImpl::OnPermissionStatusChanged,
weak_factory_.GetWeakPtr(),
callback,
base::Owned(subscription_id)));
}
PermissionStatus PermissionServiceImpl::GetPermissionStatusFromName(
PermissionName permission, const GURL& origin) {
return GetPermissionStatusFromType(PermissionNameToPermissionType(permission),
origin);
}
PermissionStatus PermissionServiceImpl::GetPermissionStatusFromType(
PermissionType type, const GURL& origin) {
BrowserContext* browser_context = context_->GetBrowserContext();
DCHECK(browser_context);
if (!browser_context->GetPermissionManager())
return PERMISSION_STATUS_DENIED;
// If the embedding_origin is empty we'll use |origin| instead.
GURL embedding_origin = context_->GetEmbeddingOrigin();
return browser_context->GetPermissionManager()->GetPermissionStatus(
type, origin, embedding_origin.is_empty() ? origin : embedding_origin);
}
void PermissionServiceImpl::ResetPermissionStatus(PermissionType type,
const GURL& origin) {
BrowserContext* browser_context = context_->GetBrowserContext();
DCHECK(browser_context);
if (!browser_context->GetPermissionManager())
return;
// If the embedding_origin is empty we'll use |origin| instead.
GURL embedding_origin = context_->GetEmbeddingOrigin();
browser_context->GetPermissionManager()->ResetPermission(
type, origin, embedding_origin.is_empty() ? origin : embedding_origin);
}
void PermissionServiceImpl::OnPermissionStatusChanged(
const mojo::Callback<void(PermissionStatus)>& callback,
const int* subscription_id,
PermissionStatus status) {
callback.Run(status);
BrowserContext* browser_context = context_->GetBrowserContext();
DCHECK(browser_context);
if (!browser_context->GetPermissionManager())
return;
browser_context->GetPermissionManager()->UnsubscribePermissionStatusChange(
*subscription_id);
}
} // namespace content
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