Source/WebCore/platform/graphics/gstreamer/WebKitWebSourceGStreamer.cpp

   1 /*
   2  *  Copyright (C) 2009, 2010 Sebastian Dröge <sebastian.droege@collabora.co.uk>
   3  *  Copyright (C) 2013 Collabora Ltd.
   4  *
   5  *  This library is free software; you can redistribute it and/or
   6  *  modify it under the terms of the GNU Lesser General Public
   7  *  License as published by the Free Software Foundation; either
   8  *  version 2 of the License, or (at your option) any later version.
   9  *
  10  *  This library is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  *  Lesser General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU Lesser General Public
  16  *  License along with this library; if not, write to the Free Software
  17  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  18  */
  19
  20 #include "config.h"
  21 #include "WebKitWebSourceGStreamer.h"
  22
  23 #if ENABLE(VIDEO) && USE(GSTREAMER)
  24
  25 #include "GRefPtrGStreamer.h"
  26 #include "GStreamerUtilities.h"
  27 #include "GUniquePtrGStreamer.h"
  28 #include "HTTPHeaderNames.h"
  29 #include "MainThreadNotifier.h"
  30 #include "MediaPlayer.h"
  31 #include "NotImplemented.h"
  32 #include "PlatformMediaResourceLoader.h"
  33 #include "ResourceError.h"
  34 #include "ResourceHandle.h"
  35 #include "ResourceHandleClient.h"
  36 #include "ResourceRequest.h"
  37 #include "ResourceResponse.h"
  38 #include "SharedBuffer.h"
  39 #include <gst/app/gstappsrc.h>
  40 #include <gst/gst.h>
  41 #include <gst/pbutils/missing-plugins.h>
  42 #include <wtf/MainThread.h>
  43 #include <wtf/Noncopyable.h>
  44 #include <wtf/glib/GMutexLocker.h>
  45 #include <wtf/glib/GRefPtr.h>
  46 #include <wtf/glib/GUniquePtr.h>
  47 #include <wtf/text/CString.h>
  48
  49 #if USE(SOUP)
  50 #include "SoupNetworkSession.h"
  51 #endif
  52
  53 using namespace WebCore;
  54
  55 class StreamingClient {
  56     public:
  57         StreamingClient(WebKitWebSrc*);
  58         virtual ~StreamingClient();
  59
  60     protected:
  61         char* createReadBuffer(size_t requestedSize, size_t& actualSize);
  62         void handleResponseReceived(const ResourceResponse&);
  63         void handleDataReceived(const char*, int);
  64         void handleNotifyFinished();
  65
  66         GstElement* m_src;
  67 };
  68
  69 class CachedResourceStreamingClient final : public PlatformMediaResourceClient, public StreamingClient {
  70     WTF_MAKE_NONCOPYABLE(CachedResourceStreamingClient);
  71     public:
  72         CachedResourceStreamingClient(WebKitWebSrc*);
  73         virtual ~CachedResourceStreamingClient();
  74
  75     private:
  76         // PlatformMediaResourceClient virtual methods.
  77 #if USE(SOUP)
  78         char* getOrCreateReadBuffer(PlatformMediaResource&, size_t requestedSize, size_t& actualSize) override;
  79 #endif
  80         void responseReceived(PlatformMediaResource&, const ResourceResponse&) override;
  81         void dataReceived(PlatformMediaResource&, const char*, int) override;
  82         void accessControlCheckFailed(PlatformMediaResource&, const ResourceError&) override;
  83         void loadFailed(PlatformMediaResource&, const ResourceError&) override;
  84         void loadFinished(PlatformMediaResource&) override;
  85 };
  86
  87 class ResourceHandleStreamingClient : public ResourceHandleClient, public StreamingClient {
  88     WTF_MAKE_NONCOPYABLE(ResourceHandleStreamingClient); WTF_MAKE_FAST_ALLOCATED;
  89     public:
  90         ResourceHandleStreamingClient(WebKitWebSrc*, ResourceRequest&&);
  91         virtual ~ResourceHandleStreamingClient();
  92
  93         // StreamingClient virtual methods.
  94         bool loadFailed() const;
  95         void setDefersLoading(bool);
  96
  97     private:
  98         // ResourceHandleClient virtual methods.
  99 #if USE(SOUP)
 100         char* getOrCreateReadBuffer(size_t requestedSize, size_t& actualSize) override;
 101 #endif
 102         ResourceRequest willSendRequest(ResourceHandle*, ResourceRequest&&, ResourceResponse&&) override;
 103         void didReceiveResponse(ResourceHandle*, ResourceResponse&&) override;
 104         void didReceiveData(ResourceHandle*, const char*, unsigned, int) override;
 105         void didReceiveBuffer(ResourceHandle*, Ref<SharedBuffer>&&, int encodedLength) override;
 106         void didFinishLoading(ResourceHandle*) override;
 107         void didFail(ResourceHandle*, const ResourceError&) override;
 108         void wasBlocked(ResourceHandle*) override;
 109         void cannotShowURL(ResourceHandle*) override;
 110
 111         ThreadIdentifier m_thread { 0 };
 112         Lock m_initializeRunLoopConditionMutex;
 113         Condition m_initializeRunLoopCondition;
 114         RunLoop* m_runLoop { nullptr };
 115         Lock m_terminateRunLoopConditionMutex;
 116         Condition m_terminateRunLoopCondition;
 117         RefPtr<ResourceHandle> m_resource;
 118 #if USE(SOUP)
 119         std::unique_ptr<SoupNetworkSession> m_session;
 120 #endif
 121 };
 122
 123 enum MainThreadSourceNotification {
 124     Start = 1 << 0,
 125     Stop = 1 << 1,
 126     NeedData = 1 << 2,
 127     EnoughData = 1 << 3,
 128     Seek = 1 << 4
 129 };
 130
 131 #define WEBKIT_WEB_SRC_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj), WEBKIT_TYPE_WEB_SRC, WebKitWebSrcPrivate))
 132 struct _WebKitWebSrcPrivate {
 133     GstAppSrc* appsrc;
 134     GstPad* srcpad;
 135     CString originalURI;
 136     CString resolvedURI;
 137     bool keepAlive;
 138     GUniquePtr<GstStructure> extraHeaders;
 139     bool compress;
 140     GUniquePtr<gchar> httpMethod;
 141
 142     WebCore::MediaPlayer* player;
 143
 144     RefPtr<PlatformMediaResourceLoader> loader;
 145     RefPtr<PlatformMediaResource> resource;
 146     std::unique_ptr<ResourceHandleStreamingClient> client;
 147
 148     bool didPassAccessControlCheck;
 149
 150     guint64 offset;
 151     guint64 size;
 152     gboolean seekable;
 153     bool paused;
 154     bool isSeeking;
 155
 156     guint64 requestedOffset;
 157
 158     bool createdInMainThread;
 159     MainThreadNotifier<MainThreadSourceNotification> notifier;
 160     GRefPtr<GstBuffer> buffer;
 161 };
 162
 163 enum {
 164     PROP_0,
 165     PROP_LOCATION,
 166     PROP_RESOLVED_LOCATION,
 167     PROP_KEEP_ALIVE,
 168     PROP_EXTRA_HEADERS,
 169     PROP_COMPRESS,
 170     PROP_METHOD
 171 };
 172
 173 static GstStaticPadTemplate srcTemplate = GST_STATIC_PAD_TEMPLATE("src",
 174                                                                   GST_PAD_SRC,
 175                                                                   GST_PAD_ALWAYS,
 176                                                                   GST_STATIC_CAPS_ANY);
 177
 178 GST_DEBUG_CATEGORY_STATIC(webkit_web_src_debug);
 179 #define GST_CAT_DEFAULT webkit_web_src_debug
 180
 181 static void webKitWebSrcUriHandlerInit(gpointer gIface, gpointer ifaceData);
 182
 183 static void webKitWebSrcDispose(GObject*);
 184 static void webKitWebSrcFinalize(GObject*);
 185 static void webKitWebSrcSetProperty(GObject*, guint propertyID, const GValue*, GParamSpec*);
 186 static void webKitWebSrcGetProperty(GObject*, guint propertyID, GValue*, GParamSpec*);
 187 static GstStateChangeReturn webKitWebSrcChangeState(GstElement*, GstStateChange);
 188
 189 static gboolean webKitWebSrcQueryWithParent(GstPad*, GstObject*, GstQuery*);
 190
 191 static void webKitWebSrcNeedData(WebKitWebSrc*);
 192 static void webKitWebSrcEnoughData(WebKitWebSrc*);
 193 static gboolean webKitWebSrcSeek(WebKitWebSrc*, guint64);
 194
 195 static GstAppSrcCallbacks appsrcCallbacks = {
 196     // need_data
 197     [](GstAppSrc*, guint, gpointer userData) {
 198         webKitWebSrcNeedData(WEBKIT_WEB_SRC(userData));
 199     },
 200     // enough_data
 201     [](GstAppSrc*, gpointer userData) {
 202         webKitWebSrcEnoughData(WEBKIT_WEB_SRC(userData));
 203     },
 204     // seek_data
 205     [](GstAppSrc*, guint64 offset, gpointer userData) -> gboolean {
 206         return webKitWebSrcSeek(WEBKIT_WEB_SRC(userData), offset);
 207     },
 208     { nullptr }
 209 };
 210
 211 #define webkit_web_src_parent_class parent_class
 212 // We split this out into another macro to avoid a check-webkit-style error.
 213 #define WEBKIT_WEB_SRC_CATEGORY_INIT GST_DEBUG_CATEGORY_INIT(webkit_web_src_debug, "webkitwebsrc", 0, "websrc element");
 214 G_DEFINE_TYPE_WITH_CODE(WebKitWebSrc, webkit_web_src, GST_TYPE_BIN,
 215                          G_IMPLEMENT_INTERFACE(GST_TYPE_URI_HANDLER, webKitWebSrcUriHandlerInit);
 216                          WEBKIT_WEB_SRC_CATEGORY_INIT);
 217
 218 static void webkit_web_src_class_init(WebKitWebSrcClass* klass)
 219 {
 220     GObjectClass* oklass = G_OBJECT_CLASS(klass);
 221     GstElementClass* eklass = GST_ELEMENT_CLASS(klass);
 222
 223     oklass->dispose = webKitWebSrcDispose;
 224     oklass->finalize = webKitWebSrcFinalize;
 225     oklass->set_property = webKitWebSrcSetProperty;
 226     oklass->get_property = webKitWebSrcGetProperty;
 227
 228     gst_element_class_add_pad_template(eklass,
 229                                        gst_static_pad_template_get(&srcTemplate));
 230     gst_element_class_set_metadata(eklass, "WebKit Web source element", "Source", "Handles HTTP/HTTPS uris",
 231                                "Sebastian Dröge <sebastian.droege@collabora.co.uk>");
 232
 233     /* Allows setting the uri using the 'location' property, which is used
 234      * for example by gst_element_make_from_uri() */
 235     g_object_class_install_property(oklass, PROP_LOCATION,
 236         g_param_spec_string("location", "location", "Location to read from",
 237             nullptr, static_cast<GParamFlags>(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
 238
 239     g_object_class_install_property(oklass, PROP_RESOLVED_LOCATION,
 240         g_param_spec_string("resolved-location", "Resolved location", "The location resolved by the server",
 241             nullptr, static_cast<GParamFlags>(G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)));
 242
 243     g_object_class_install_property(oklass, PROP_KEEP_ALIVE,
 244         g_param_spec_boolean("keep-alive", "keep-alive", "Use HTTP persistent connections",
 245             FALSE, static_cast<GParamFlags>(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
 246
 247     g_object_class_install_property(oklass, PROP_EXTRA_HEADERS,
 248         g_param_spec_boxed("extra-headers", "Extra Headers", "Extra headers to append to the HTTP request",
 249             GST_TYPE_STRUCTURE, static_cast<GParamFlags>(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
 250
 251     g_object_class_install_property(oklass, PROP_COMPRESS,
 252         g_param_spec_boolean("compress", "Compress", "Allow compressed content encodings",
 253             FALSE, static_cast<GParamFlags>(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
 254
 255     g_object_class_install_property(oklass, PROP_METHOD,
 256         g_param_spec_string("method", "method", "The HTTP method to use (default: GET)",
 257             nullptr, static_cast<GParamFlags>(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
 258
 259     eklass->change_state = webKitWebSrcChangeState;
 260
 261     g_type_class_add_private(klass, sizeof(WebKitWebSrcPrivate));
 262 }
 263
 264 static void webkit_web_src_init(WebKitWebSrc* src)
 265 {
 266     WebKitWebSrcPrivate* priv = WEBKIT_WEB_SRC_GET_PRIVATE(src);
 267
 268     src->priv = priv;
 269     new (priv) WebKitWebSrcPrivate();
 270
 271     priv->createdInMainThread = isMainThread();
 272
 273     priv->appsrc = GST_APP_SRC(gst_element_factory_make("appsrc", nullptr));
 274     if (!priv->appsrc) {
 275         GST_ERROR_OBJECT(src, "Failed to create appsrc");
 276         return;
 277     }
 278
 279     gst_bin_add(GST_BIN(src), GST_ELEMENT(priv->appsrc));
 280
 281
 282     GRefPtr<GstPad> targetPad = adoptGRef(gst_element_get_static_pad(GST_ELEMENT(priv->appsrc), "src"));
 283     priv->srcpad = webkitGstGhostPadFromStaticTemplate(&srcTemplate, "src", targetPad.get());
 284
 285     gst_element_add_pad(GST_ELEMENT(src), priv->srcpad);
 286
 287     GST_OBJECT_FLAG_SET(priv->srcpad, GST_PAD_FLAG_NEED_PARENT);
 288     gst_pad_set_query_function(priv->srcpad, webKitWebSrcQueryWithParent);
 289
 290     gst_app_src_set_callbacks(priv->appsrc, &appsrcCallbacks, src, nullptr);
 291     gst_app_src_set_emit_signals(priv->appsrc, FALSE);
 292     gst_app_src_set_stream_type(priv->appsrc, GST_APP_STREAM_TYPE_SEEKABLE);
 293
 294     // 512k is a abitrary number but we should choose a value
 295     // here to not pause/unpause the SoupMessage too often and
 296     // to make sure there's always some data available for
 297     // GStreamer to handle.
 298     gst_app_src_set_max_bytes(priv->appsrc, 512 * 1024);
 299
 300     // Emit the need-data signal if the queue contains less
 301     // than 20% of data. Without this the need-data signal
 302     // is emitted when the queue is empty, we then dispatch
 303     // the soup message unpausing to the main loop and from
 304     // there unpause the soup message. This already takes
 305     // quite some time and libsoup even needs some more time
 306     // to actually provide data again. If we do all this
 307     // already if the queue is 20% empty, it's much more
 308     // likely that libsoup already provides new data before
 309     // the queue is really empty.
 310     // This might need tweaking for ports not using libsoup.
 311     g_object_set(priv->appsrc, "min-percent", 20, nullptr);
 312
 313     gst_app_src_set_caps(priv->appsrc, nullptr);
 314     gst_app_src_set_size(priv->appsrc, -1);
 315 }
 316
 317 static void webKitWebSrcDispose(GObject* object)
 318 {
 319     WebKitWebSrc* src = WEBKIT_WEB_SRC(object);
 320     WebKitWebSrcPrivate* priv = src->priv;
 321
 322     priv->player = nullptr;
 323
 324     GST_CALL_PARENT(G_OBJECT_CLASS, dispose, (object));
 325 }
 326
 327 static void webKitWebSrcFinalize(GObject* object)
 328 {
 329     WebKitWebSrcPrivate* priv = WEBKIT_WEB_SRC(object)->priv;
 330
 331     priv->~WebKitWebSrcPrivate();
 332
 333     GST_CALL_PARENT(G_OBJECT_CLASS, finalize, (object));
 334 }
 335
 336 static void webKitWebSrcSetProperty(GObject* object, guint propID, const GValue* value, GParamSpec* pspec)
 337 {
 338     WebKitWebSrc* src = WEBKIT_WEB_SRC(object);
 339
 340     switch (propID) {
 341     case PROP_LOCATION:
 342         gst_uri_handler_set_uri(reinterpret_cast<GstURIHandler*>(src), g_value_get_string(value), nullptr);
 343         break;
 344     case PROP_KEEP_ALIVE:
 345         src->priv->keepAlive = g_value_get_boolean(value);
 346         break;
 347     case PROP_EXTRA_HEADERS: {
 348         const GstStructure* s = gst_value_get_structure(value);
 349         src->priv->extraHeaders.reset(s ? gst_structure_copy(s) : nullptr);
 350         break;
 351     }
 352     case PROP_COMPRESS:
 353         src->priv->compress = g_value_get_boolean(value);
 354         break;
 355     case PROP_METHOD:
 356         src->priv->httpMethod.reset(g_value_dup_string(value));
 357         break;
 358     default:
 359         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, propID, pspec);
 360         break;
 361     }
 362 }
 363
 364 static void webKitWebSrcGetProperty(GObject* object, guint propID, GValue* value, GParamSpec* pspec)
 365 {
 366     WebKitWebSrc* src = WEBKIT_WEB_SRC(object);
 367     WebKitWebSrcPrivate* priv = src->priv;
 368
 369     WTF::GMutexLocker<GMutex> locker(*GST_OBJECT_GET_LOCK(src));
 370     switch (propID) {
 371     case PROP_LOCATION:
 372         g_value_set_string(value, priv->originalURI.data());
 373         break;
 374     case PROP_RESOLVED_LOCATION:
 375         g_value_set_string(value, priv->resolvedURI.data());
 376         break;
 377     case PROP_KEEP_ALIVE:
 378         g_value_set_boolean(value, priv->keepAlive);
 379         break;
 380     case PROP_EXTRA_HEADERS:
 381         gst_value_set_structure(value, priv->extraHeaders.get());
 382         break;
 383     case PROP_COMPRESS:
 384         g_value_set_boolean(value, priv->compress);
 385         break;
 386     case PROP_METHOD:
 387         g_value_set_string(value, priv->httpMethod.get());
 388         break;
 389     default:
 390         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, propID, pspec);
 391         break;
 392     }
 393 }
 394
 395 static void webKitWebSrcStop(WebKitWebSrc* src)
 396 {
 397     WebKitWebSrcPrivate* priv = src->priv;
 398
 399     if (priv->resource || (priv->loader && !priv->keepAlive)) {
 400         GRefPtr<WebKitWebSrc> protector = WTF::ensureGRef(src);
 401         priv->notifier.cancelPendingNotifications(MainThreadSourceNotification::NeedData | MainThreadSourceNotification::EnoughData | MainThreadSourceNotification::Seek);
 402         priv->notifier.notify(MainThreadSourceNotification::Stop, [protector, keepAlive = priv->keepAlive] {
 403             WebKitWebSrcPrivate* priv = protector->priv;
 404
 405             WTF::GMutexLocker<GMutex> locker(*GST_OBJECT_GET_LOCK(protector.get()));
 406             if (priv->resource) {
 407                 priv->resource->stop();
 408                 priv->resource->setClient(nullptr);
 409                 priv->resource = nullptr;
 410             }
 411
 412             if (!keepAlive)
 413                 priv->loader = nullptr;
 414         });
 415     }
 416
 417     WTF::GMutexLocker<GMutex> locker(*GST_OBJECT_GET_LOCK(src));
 418
 419     bool wasSeeking = std::exchange(priv->isSeeking, false);
 420
 421     priv->client = nullptr;
 422
 423     if (priv->buffer) {
 424         unmapGstBuffer(priv->buffer.get());
 425         priv->buffer.clear();
 426     }
 427
 428     priv->paused = false;
 429
 430     priv->offset = 0;
 431     priv->seekable = FALSE;
 432
 433     if (!wasSeeking) {
 434         priv->size = 0;
 435         priv->requestedOffset = 0;
 436         priv->player = nullptr;
 437     }
 438
 439     locker.unlock();
 440
 441     if (priv->appsrc) {
 442         gst_app_src_set_caps(priv->appsrc, nullptr);
 443         if (!wasSeeking)
 444             gst_app_src_set_size(priv->appsrc, -1);
 445     }
 446
 447     GST_DEBUG_OBJECT(src, "Stopped request");
 448 }
 449
 450 static bool webKitWebSrcSetExtraHeader(GQuark fieldId, const GValue* value, gpointer userData)
 451 {
 452     GUniquePtr<gchar> fieldContent;
 453
 454     if (G_VALUE_HOLDS_STRING(value))
 455         fieldContent.reset(g_value_dup_string(value));
 456     else {
 457         GValue dest = G_VALUE_INIT;
 458
 459         g_value_init(&dest, G_TYPE_STRING);
 460         if (g_value_transform(value, &dest))
 461             fieldContent.reset(g_value_dup_string(&dest));
 462     }
 463
 464     const gchar* fieldName = g_quark_to_string(fieldId);
 465     if (!fieldContent.get()) {
 466         GST_ERROR("extra-headers field '%s' contains no value or can't be converted to a string", fieldName);
 467         return false;
 468     }
 469
 470     GST_DEBUG("Appending extra header: \"%s: %s\"", fieldName, fieldContent.get());
 471     ResourceRequest* request = static_cast<ResourceRequest*>(userData);
 472     request->setHTTPHeaderField(fieldName, fieldContent.get());
 473     return true;
 474 }
 475
 476 static gboolean webKitWebSrcProcessExtraHeaders(GQuark fieldId, const GValue* value, gpointer userData)
 477 {
 478     if (G_VALUE_TYPE(value) == GST_TYPE_ARRAY) {
 479         unsigned size = gst_value_array_get_size(value);
 480
 481         for (unsigned i = 0; i < size; i++) {
 482             if (!webKitWebSrcSetExtraHeader(fieldId, gst_value_array_get_value(value, i), userData))
 483                 return FALSE;
 484         }
 485         return TRUE;
 486     }
 487
 488     if (G_VALUE_TYPE(value) == GST_TYPE_LIST) {
 489         unsigned size = gst_value_list_get_size(value);
 490
 491         for (unsigned i = 0; i < size; i++) {
 492             if (!webKitWebSrcSetExtraHeader(fieldId, gst_value_list_get_value(value, i), userData))
 493                 return FALSE;
 494         }
 495         return TRUE;
 496     }
 497
 498     return webKitWebSrcSetExtraHeader(fieldId, value, userData);
 499 }
 500
 501 static void webKitWebSrcStart(WebKitWebSrc* src)
 502 {
 503     WebKitWebSrcPrivate* priv = src->priv;
 504
 505     WTF::GMutexLocker<GMutex> locker(*GST_OBJECT_GET_LOCK(src));
 506
 507     priv->didPassAccessControlCheck = false;
 508
 509     if (priv->originalURI.isNull()) {
 510         GST_ERROR_OBJECT(src, "No URI provided");
 511         locker.unlock();
 512         webKitWebSrcStop(src);
 513         return;
 514     }
 515
 516     ASSERT(!priv->client);
 517
 518     GST_DEBUG_OBJECT(src, "Fetching %s", priv->originalURI.data());
 519     URL url = URL(URL(), priv->originalURI.data());
 520
 521     ResourceRequest request(url);
 522     request.setAllowCookies(true);
 523     request.setFirstPartyForCookies(url);
 524
 525     priv->size = 0;
 526
 527     if (priv->player)
 528         request.setHTTPReferrer(priv->player->referrer());
 529
 530     if (priv->httpMethod.get())
 531         request.setHTTPMethod(priv->httpMethod.get());
 532
 533 #if USE(SOUP)
 534     // By default, HTTP Accept-Encoding is disabled here as we don't
 535     // want the received response to be encoded in any way as we need
 536     // to rely on the proper size of the returned data on
 537     // didReceiveResponse.
 538     // If Accept-Encoding is used, the server may send the data in encoded format and
 539     // request.expectedContentLength() will have the "wrong" size (the size of the
 540     // compressed data), even though the data received in didReceiveData is uncompressed.
 541     // This is however useful to enable for adaptive streaming
 542     // scenarios, when the demuxer needs to download playlists.
 543     if (!priv->compress)
 544         request.setAcceptEncoding(false);
 545 #endif
 546
 547     // Let Apple web servers know we want to access their nice movie trailers.
 548     if (!g_ascii_strcasecmp("movies.apple.com", url.host().utf8().data())
 549         || !g_ascii_strcasecmp("trailers.apple.com", url.host().utf8().data()))
 550         request.setHTTPUserAgent("Quicktime/7.6.6");
 551
 552     if (priv->requestedOffset) {
 553         GUniquePtr<gchar> val(g_strdup_printf("bytes=%" G_GUINT64_FORMAT "-", priv->requestedOffset));
 554         request.setHTTPHeaderField(HTTPHeaderName::Range, val.get());
 555     }
 556     priv->offset = priv->requestedOffset;
 557
 558     if (!priv->keepAlive) {
 559         GST_DEBUG_OBJECT(src, "Persistent connection support disabled");
 560         request.setHTTPHeaderField(HTTPHeaderName::Connection, "close");
 561     }
 562
 563     if (priv->extraHeaders)
 564         gst_structure_foreach(priv->extraHeaders.get(), webKitWebSrcProcessExtraHeaders, &request);
 565
 566     // We always request Icecast/Shoutcast metadata, just in case ...
 567     request.setHTTPHeaderField(HTTPHeaderName::IcyMetadata, "1");
 568
 569     if (!priv->player || !priv->createdInMainThread) {
 570         priv->client = std::make_unique<ResourceHandleStreamingClient>(src, WTFMove(request));
 571         if (priv->client->loadFailed()) {
 572             GST_ERROR_OBJECT(src, "Failed to setup streaming client");
 573             priv->client = nullptr;
 574             locker.unlock();
 575             webKitWebSrcStop(src);
 576         } else
 577             GST_DEBUG_OBJECT(src, "Started request");
 578         return;
 579     }
 580
 581     locker.unlock();
 582     GRefPtr<WebKitWebSrc> protector = WTF::ensureGRef(src);
 583     priv->notifier.notify(MainThreadSourceNotification::Start, [protector, request = WTFMove(request)] {
 584         WebKitWebSrcPrivate* priv = protector->priv;
 585
 586         WTF::GMutexLocker<GMutex> locker(*GST_OBJECT_GET_LOCK(protector.get()));
 587         if (!priv->loader)
 588             priv->loader = priv->player->createResourceLoader();
 589
 590         PlatformMediaResourceLoader::LoadOptions loadOptions = 0;
 591         if (request.url().protocolIsBlob())
 592             loadOptions |= PlatformMediaResourceLoader::LoadOption::BufferData;
 593         // FIXME: request should be moved for efficiency
 594         priv->resource = priv->loader->requestResource(ResourceRequest(request), loadOptions);
 595         if (priv->resource) {
 596             priv->resource->setClient(std::make_unique<CachedResourceStreamingClient>(protector.get()));
 597             GST_DEBUG_OBJECT(protector.get(), "Started request");
 598         } else {
 599             GST_ERROR_OBJECT(protector.get(), "Failed to setup streaming client");
 600             priv->loader = nullptr;
 601             locker.unlock();
 602             webKitWebSrcStop(protector.get());
 603         }
 604     });
 605 }
 606
 607 static GstStateChangeReturn webKitWebSrcChangeState(GstElement* element, GstStateChange transition)
 608 {
 609     GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
 610     WebKitWebSrc* src = WEBKIT_WEB_SRC(element);
 611     WebKitWebSrcPrivate* priv = src->priv;
 612
 613     switch (transition) {
 614     case GST_STATE_CHANGE_NULL_TO_READY:
 615         if (!priv->appsrc) {
 616             gst_element_post_message(element,
 617                                      gst_missing_element_message_new(element, "appsrc"));
 618             GST_ELEMENT_ERROR(src, CORE, MISSING_PLUGIN, (nullptr), ("no appsrc"));
 619             return GST_STATE_CHANGE_FAILURE;
 620         }
 621         break;
 622     default:
 623         break;
 624     }
 625
 626     ret = GST_ELEMENT_CLASS(parent_class)->change_state(element, transition);
 627     if (G_UNLIKELY(ret == GST_STATE_CHANGE_FAILURE)) {
 628         GST_DEBUG_OBJECT(src, "State change failed");
 629         return ret;
 630     }
 631
 632     switch (transition) {
 633     case GST_STATE_CHANGE_READY_TO_PAUSED:
 634     {
 635         GST_DEBUG_OBJECT(src, "READY->PAUSED");
 636         webKitWebSrcStart(src);
 637         break;
 638     }
 639     case GST_STATE_CHANGE_PAUSED_TO_READY:
 640     {
 641         GST_DEBUG_OBJECT(src, "PAUSED->READY");
 642         webKitWebSrcStop(src);
 643         break;
 644     }
 645     default:
 646         break;
 647     }
 648
 649     return ret;
 650 }
 651
 652 static gboolean webKitWebSrcQueryWithParent(GstPad* pad, GstObject* parent, GstQuery* query)
 653 {
 654     WebKitWebSrc* src = WEBKIT_WEB_SRC(GST_ELEMENT(parent));
 655     gboolean result = FALSE;
 656
 657     switch (GST_QUERY_TYPE(query)) {
 658     case GST_QUERY_DURATION: {
 659         GstFormat format;
 660
 661         gst_query_parse_duration(query, &format, nullptr);
 662
 663         GST_DEBUG_OBJECT(src, "duration query in format %s", gst_format_get_name(format));
 664         WTF::GMutexLocker<GMutex> locker(*GST_OBJECT_GET_LOCK(src));
 665         if (format == GST_FORMAT_BYTES && src->priv->size > 0) {
 666             gst_query_set_duration(query, format, src->priv->size);
 667             result = TRUE;
 668         }
 669         break;
 670     }
 671     case GST_QUERY_URI: {
 672         WTF::GMutexLocker<GMutex> locker(*GST_OBJECT_GET_LOCK(src));
 673         gst_query_set_uri(query, src->priv->originalURI.data());
 674         result = TRUE;
 675         break;
 676     }
 677     case GST_QUERY_SCHEDULING: {
 678         GstSchedulingFlags flags;
 679         int minSize, maxSize, align;
 680
 681         gst_query_parse_scheduling(query, &flags, &minSize, &maxSize, &align);
 682         gst_query_set_scheduling(query, static_cast<GstSchedulingFlags>(flags | GST_SCHEDULING_FLAG_BANDWIDTH_LIMITED), minSize, maxSize, align);
 683         result = TRUE;
 684         break;
 685     }
 686     default: {
 687         GRefPtr<GstPad> target = adoptGRef(gst_ghost_pad_get_target(GST_GHOST_PAD_CAST(pad)));
 688
 689         // Forward the query to the proxy target pad.
 690         if (target)
 691             result = gst_pad_query(target.get(), query);
 692         break;
 693     }
 694     }
 695
 696     return result;
 697 }
 698
 699 static bool urlHasSupportedProtocol(const URL& url)
 700 {
 701     return url.isValid() && (url.protocolIsInHTTPFamily() || url.protocolIsBlob());
 702 }
 703
 704 // uri handler interface
 705
 706 static GstURIType webKitWebSrcUriGetType(GType)
 707 {
 708     return GST_URI_SRC;
 709 }
 710
 711 const gchar* const* webKitWebSrcGetProtocols(GType)
 712 {
 713     static const char* protocols[] = {"http", "https", "blob", nullptr };
 714     return protocols;
 715 }
 716
 717 static gchar* webKitWebSrcGetUri(GstURIHandler* handler)
 718 {
 719     WebKitWebSrc* src = WEBKIT_WEB_SRC(handler);
 720     gchar* ret;
 721
 722     WTF::GMutexLocker<GMutex> locker(*GST_OBJECT_GET_LOCK(src));
 723     ret = g_strdup(src->priv->originalURI.data());
 724     return ret;
 725 }
 726
 727 static gboolean webKitWebSrcSetUri(GstURIHandler* handler, const gchar* uri, GError** error)
 728 {
 729     WebKitWebSrc* src = WEBKIT_WEB_SRC(handler);
 730     WebKitWebSrcPrivate* priv = src->priv;
 731
 732     if (GST_STATE(src) >= GST_STATE_PAUSED) {
 733         GST_ERROR_OBJECT(src, "URI can only be set in states < PAUSED");
 734         return FALSE;
 735     }
 736
 737     WTF::GMutexLocker<GMutex> locker(*GST_OBJECT_GET_LOCK(src));
 738
 739     priv->originalURI = CString();
 740     if (!uri)
 741         return TRUE;
 742
 743     URL url(URL(), uri);
 744     if (!urlHasSupportedProtocol(url)) {
 745         g_set_error(error, GST_URI_ERROR, GST_URI_ERROR_BAD_URI, "Invalid URI '%s'", uri);
 746         return FALSE;
 747     }
 748
 749     priv->originalURI = url.string().utf8();
 750     return TRUE;
 751 }
 752
 753 static void webKitWebSrcUriHandlerInit(gpointer gIface, gpointer)
 754 {
 755     GstURIHandlerInterface* iface = (GstURIHandlerInterface *) gIface;
 756
 757     iface->get_type = webKitWebSrcUriGetType;
 758     iface->get_protocols = webKitWebSrcGetProtocols;
 759     iface->get_uri = webKitWebSrcGetUri;
 760     iface->set_uri = webKitWebSrcSetUri;
 761 }
 762
 763 static void webKitWebSrcNeedData(WebKitWebSrc* src)
 764 {
 765     WebKitWebSrcPrivate* priv = src->priv;
 766
 767     GST_DEBUG_OBJECT(src, "Need more data");
 768
 769     {
 770         WTF::GMutexLocker<GMutex> locker(*GST_OBJECT_GET_LOCK(src));
 771         if (!priv->paused)
 772             return;
 773         priv->paused = false;
 774         if (priv->client) {
 775             priv->client->setDefersLoading(false);
 776             return;
 777         }
 778     }
 779
 780     GRefPtr<WebKitWebSrc> protector = WTF::ensureGRef(src);
 781     priv->notifier.notify(MainThreadSourceNotification::NeedData, [protector] {
 782         WebKitWebSrcPrivate* priv = protector->priv;
 783         if (priv->resource)
 784             priv->resource->setDefersLoading(false);
 785     });
 786 }
 787
 788 static void webKitWebSrcEnoughData(WebKitWebSrc* src)
 789 {
 790     WebKitWebSrcPrivate* priv = src->priv;
 791
 792     GST_DEBUG_OBJECT(src, "Have enough data");
 793
 794     {
 795         WTF::GMutexLocker<GMutex> locker(*GST_OBJECT_GET_LOCK(src));
 796         if (priv->paused)
 797             return;
 798         priv->paused = true;
 799         if (priv->client) {
 800             priv->client->setDefersLoading(true);
 801             return;
 802         }
 803     }
 804
 805     GRefPtr<WebKitWebSrc> protector = WTF::ensureGRef(src);
 806     priv->notifier.notify(MainThreadSourceNotification::EnoughData, [protector] {
 807         WebKitWebSrcPrivate* priv = protector->priv;
 808         if (priv->resource)
 809             priv->resource->setDefersLoading(true);
 810     });
 811 }
 812
 813 static gboolean webKitWebSrcSeek(WebKitWebSrc* src, guint64 offset)
 814 {
 815     WebKitWebSrcPrivate* priv = src->priv;
 816
 817     {
 818         WTF::GMutexLocker<GMutex> locker(*GST_OBJECT_GET_LOCK(src));
 819         if (offset == priv->offset && priv->requestedOffset == priv->offset)
 820             return TRUE;
 821
 822         if (!priv->seekable)
 823             return FALSE;
 824
 825         priv->isSeeking = true;
 826         priv->requestedOffset = offset;
 827     }
 828
 829     GST_DEBUG_OBJECT(src, "Seeking to offset: %" G_GUINT64_FORMAT, src->priv->requestedOffset);
 830     if (priv->client) {
 831         webKitWebSrcStop(src);
 832         webKitWebSrcStart(src);
 833         return TRUE;
 834     }
 835
 836     GRefPtr<WebKitWebSrc> protector = WTF::ensureGRef(src);
 837     priv->notifier.notify(MainThreadSourceNotification::Seek, [protector] {
 838         webKitWebSrcStop(protector.get());
 839         webKitWebSrcStart(protector.get());
 840     });
 841     return TRUE;
 842 }
 843
 844 void webKitWebSrcSetMediaPlayer(WebKitWebSrc* src, WebCore::MediaPlayer* player)
 845 {
 846     ASSERT(player);
 847     ASSERT(src->priv->createdInMainThread);
 848     WTF::GMutexLocker<GMutex> locker(*GST_OBJECT_GET_LOCK(src));
 849     src->priv->player = player;
 850 }
 851
 852 bool webKitSrcPassedCORSAccessCheck(WebKitWebSrc* src)
 853 {
 854     return src->priv->didPassAccessControlCheck;
 855 }
 856
 857 StreamingClient::StreamingClient(WebKitWebSrc* src)
 858     : m_src(static_cast<GstElement*>(gst_object_ref(src)))
 859 {
 860 }
 861
 862 StreamingClient::~StreamingClient()
 863 {
 864     gst_object_unref(m_src);
 865 }
 866
 867 char* StreamingClient::createReadBuffer(size_t requestedSize, size_t& actualSize)
 868 {
 869     WebKitWebSrc* src = WEBKIT_WEB_SRC(m_src);
 870     WebKitWebSrcPrivate* priv = src->priv;
 871
 872     ASSERT(!priv->buffer);
 873
 874     GstBuffer* buffer = gst_buffer_new_and_alloc(requestedSize);
 875
 876     mapGstBuffer(buffer, GST_MAP_WRITE);
 877
 878     WTF::GMutexLocker<GMutex> locker(*GST_OBJECT_GET_LOCK(src));
 879     priv->buffer = adoptGRef(buffer);
 880     locker.unlock();
 881
 882     actualSize = gst_buffer_get_size(buffer);
 883     return getGstBufferDataPointer(buffer);
 884 }
 885
 886 void StreamingClient::handleResponseReceived(const ResourceResponse& response)
 887 {
 888     WebKitWebSrc* src = WEBKIT_WEB_SRC(m_src);
 889     WebKitWebSrcPrivate* priv = src->priv;
 890
 891     GST_DEBUG_OBJECT(src, "Received response: %d", response.httpStatusCode());
 892
 893     priv->resolvedURI = response.url().string().utf8();
 894
 895     if (response.httpStatusCode() >= 400) {
 896         GST_ELEMENT_ERROR(src, RESOURCE, READ, ("Received %d HTTP error code", response.httpStatusCode()), (nullptr));
 897         gst_app_src_end_of_stream(priv->appsrc);
 898         webKitWebSrcStop(src);
 899         return;
 900     }
 901
 902     WTF::GMutexLocker<GMutex> locker(*GST_OBJECT_GET_LOCK(src));
 903
 904     if (priv->isSeeking) {
 905         GST_DEBUG_OBJECT(src, "Seek in progress, ignoring response");
 906         return;
 907     }
 908
 909     if (priv->requestedOffset) {
 910         // Seeking ... we expect a 206 == PARTIAL_CONTENT
 911         if (response.httpStatusCode() == 200) {
 912             // Range request didn't have a ranged response; resetting offset.
 913             priv->offset = 0;
 914         } else if (response.httpStatusCode() != 206) {
 915             // Range request completely failed.
 916             locker.unlock();
 917             GST_ELEMENT_ERROR(src, RESOURCE, READ, ("Received unexpected %d HTTP status code", response.httpStatusCode()), (nullptr));
 918             gst_app_src_end_of_stream(priv->appsrc);
 919             webKitWebSrcStop(src);
 920             return;
 921         }
 922     }
 923
 924     long long length = response.expectedContentLength();
 925     if (length > 0 && priv->requestedOffset && response.httpStatusCode() == 206)
 926         length += priv->requestedOffset;
 927
 928     priv->size = length >= 0 ? length : 0;
 929     priv->seekable = length > 0 && g_ascii_strcasecmp("none", response.httpHeaderField(HTTPHeaderName::AcceptRanges).utf8().data());
 930
 931     locker.unlock();
 932
 933     // notify size/duration
 934     if (length > 0) {
 935         gst_app_src_set_size(priv->appsrc, length);
 936     } else
 937         gst_app_src_set_size(priv->appsrc, -1);
 938
 939     gst_app_src_set_caps(priv->appsrc, nullptr);
 940 }
 941
 942 void StreamingClient::handleDataReceived(const char* data, int length)
 943 {
 944     WebKitWebSrc* src = WEBKIT_WEB_SRC(m_src);
 945     WebKitWebSrcPrivate* priv = src->priv;
 946
 947     WTF::GMutexLocker<GMutex> locker(*GST_OBJECT_GET_LOCK(src));
 948
 949     GST_LOG_OBJECT(src, "Have %lld bytes of data", priv->buffer ? static_cast<long long>(gst_buffer_get_size(priv->buffer.get())) : length);
 950
 951     ASSERT(!priv->buffer || data == getGstBufferDataPointer(priv->buffer.get()));
 952
 953     if (priv->buffer)
 954         unmapGstBuffer(priv->buffer.get());
 955
 956     if (priv->isSeeking) {
 957         GST_DEBUG_OBJECT(src, "Seek in progress, ignoring data");
 958         priv->buffer.clear();
 959         return;
 960     }
 961
 962     if (priv->offset < priv->requestedOffset) {
 963         // Range request failed; seeking manually.
 964         if (priv->offset + length <= priv->requestedOffset) {
 965             // Discard all the buffers coming before the requested seek position.
 966             priv->offset += length;
 967             priv->buffer.clear();
 968             return;
 969         }
 970
 971         if (priv->offset + length > priv->requestedOffset) {
 972             guint64 offset = priv->requestedOffset - priv->offset;
 973             data += offset;
 974             length -= offset;
 975             if (priv->buffer)
 976                 gst_buffer_resize(priv->buffer.get(), offset, -1);
 977             priv->offset = priv->requestedOffset;
 978         }
 979
 980         priv->requestedOffset = 0;
 981     }
 982
 983     // Ports using the GStreamer backend but not the soup implementation of ResourceHandle
 984     // won't be using buffers provided by this client, the buffer is created here in that case.
 985     if (!priv->buffer)
 986         priv->buffer = adoptGRef(createGstBufferForData(data, length));
 987     else
 988         gst_buffer_set_size(priv->buffer.get(), static_cast<gssize>(length));
 989
 990     GST_BUFFER_OFFSET(priv->buffer.get()) = priv->offset;
 991     if (priv->requestedOffset == priv->offset)
 992         priv->requestedOffset += length;
 993     priv->offset += length;
 994     // priv->size == 0 if received length on didReceiveResponse < 0.
 995     if (priv->size > 0 && priv->offset > priv->size) {
 996         GST_DEBUG_OBJECT(src, "Updating internal size from %" G_GUINT64_FORMAT " to %" G_GUINT64_FORMAT, priv->size, priv->offset);
 997         gst_app_src_set_size(priv->appsrc, priv->offset);
 998         priv->size = priv->offset;
 999     }
1000     GST_BUFFER_OFFSET_END(priv->buffer.get()) = priv->offset;
1001
1002     locker.unlock();
1003
1004     GstFlowReturn ret = gst_app_src_push_buffer(priv->appsrc, priv->buffer.leakRef());
1005     if (ret != GST_FLOW_OK && ret != GST_FLOW_EOS)
1006         GST_ELEMENT_ERROR(src, CORE, FAILED, (nullptr), (nullptr));
1007 }
1008
1009 void StreamingClient::handleNotifyFinished()
1010 {
1011     WebKitWebSrc* src = WEBKIT_WEB_SRC(m_src);
1012     WebKitWebSrcPrivate* priv = src->priv;
1013
1014     GST_DEBUG_OBJECT(src, "Have EOS");
1015
1016     WTF::GMutexLocker<GMutex> locker(*GST_OBJECT_GET_LOCK(src));
1017     if (!priv->isSeeking) {
1018         locker.unlock();
1019         gst_app_src_end_of_stream(priv->appsrc);
1020     }
1021 }
1022
1023 CachedResourceStreamingClient::CachedResourceStreamingClient(WebKitWebSrc* src)
1024     : StreamingClient(src)
1025 {
1026 }
1027
1028 CachedResourceStreamingClient::~CachedResourceStreamingClient()
1029 {
1030 }
1031
1032 #if USE(SOUP)
1033 char* CachedResourceStreamingClient::getOrCreateReadBuffer(PlatformMediaResource&, size_t requestedSize, size_t& actualSize)
1034 {
1035     return createReadBuffer(requestedSize, actualSize);
1036 }
1037 #endif
1038
1039 void CachedResourceStreamingClient::responseReceived(PlatformMediaResource&, const ResourceResponse& response)
1040 {
1041     WebKitWebSrcPrivate* priv = WEBKIT_WEB_SRC(m_src)->priv;
1042     priv->didPassAccessControlCheck = priv->resource->didPassAccessControlCheck();
1043     handleResponseReceived(response);
1044 }
1045
1046 void CachedResourceStreamingClient::dataReceived(PlatformMediaResource&, const char* data, int length)
1047 {
1048     handleDataReceived(data, length);
1049 }
1050
1051 void CachedResourceStreamingClient::accessControlCheckFailed(PlatformMediaResource&, const ResourceError& error)
1052 {
1053     WebKitWebSrc* src = WEBKIT_WEB_SRC(m_src);
1054     GST_ELEMENT_ERROR(src, RESOURCE, READ, ("%s", error.localizedDescription().utf8().data()), (nullptr));
1055     gst_app_src_end_of_stream(src->priv->appsrc);
1056     webKitWebSrcStop(src);
1057 }
1058
1059 void CachedResourceStreamingClient::loadFailed(PlatformMediaResource&, const ResourceError& error)
1060 {
1061     WebKitWebSrc* src = WEBKIT_WEB_SRC(m_src);
1062
1063     if (!error.isCancellation()) {
1064         GST_ERROR_OBJECT(src, "Have failure: %s", error.localizedDescription().utf8().data());
1065         GST_ELEMENT_ERROR(src, RESOURCE, FAILED, ("%s", error.localizedDescription().utf8().data()), (nullptr));
1066     }
1067
1068     gst_app_src_end_of_stream(src->priv->appsrc);
1069 }
1070
1071 void CachedResourceStreamingClient::loadFinished(PlatformMediaResource&)
1072 {
1073     handleNotifyFinished();
1074 }
1075
1076 ResourceHandleStreamingClient::ResourceHandleStreamingClient(WebKitWebSrc* src, ResourceRequest&& request)
1077     : StreamingClient(src)
1078 {
1079     LockHolder locker(m_initializeRunLoopConditionMutex);
1080     m_thread = createThread("ResourceHandleStreamingClient", [this, request = WTFMove(request)] {
1081         {
1082             LockHolder locker(m_initializeRunLoopConditionMutex);
1083             m_runLoop = &RunLoop::current();
1084 #if USE(SOUP)
1085             m_session = std::make_unique<SoupNetworkSession>();
1086             m_resource = ResourceHandle::create(*m_session, request, this, true, false);
1087 #else
1088             // FIXME: This create will hit an assert in debug builds. See https://bugs.webkit.org/show_bug.cgi?id=167003.
1089             m_resource = ResourceHandle::create(nullptr /*context*/, request, this, true, false);
1090 #endif
1091             m_initializeRunLoopCondition.notifyOne();
1092         }
1093         if (!m_resource)
1094             return;
1095
1096         m_runLoop->dispatch([this] { m_resource->setDefersLoading(false); });
1097         m_runLoop->run();
1098         {
1099             LockHolder locker(m_terminateRunLoopConditionMutex);
1100             m_runLoop = nullptr;
1101             m_resource->clearClient();
1102             m_resource->cancel();
1103             m_resource = nullptr;
1104 #if USE(SOUP)
1105             m_session = nullptr;
1106 #endif
1107             m_terminateRunLoopCondition.notifyOne();
1108         }
1109     });
1110     m_initializeRunLoopCondition.wait(m_initializeRunLoopConditionMutex);
1111 }
1112
1113 ResourceHandleStreamingClient::~ResourceHandleStreamingClient()
1114 {
1115     if (m_thread) {
1116         detachThread(m_thread);
1117         m_thread = 0;
1118     }
1119
1120     if (m_runLoop == &RunLoop::current())
1121         m_runLoop->stop();
1122     else {
1123         LockHolder locker(m_terminateRunLoopConditionMutex);
1124         m_runLoop->stop();
1125         m_terminateRunLoopCondition.wait(m_terminateRunLoopConditionMutex);
1126     }
1127 }
1128
1129 bool ResourceHandleStreamingClient::loadFailed() const
1130 {
1131     return !m_resource;
1132 }
1133
1134 void ResourceHandleStreamingClient::setDefersLoading(bool defers)
1135 {
1136     m_runLoop->dispatch([this, defers] {
1137         if (m_resource)
1138             m_resource->setDefersLoading(defers);
1139     });
1140 }
1141
1142 #if USE(SOUP)
1143 char* ResourceHandleStreamingClient::getOrCreateReadBuffer(size_t requestedSize, size_t& actualSize)
1144 {
1145     return createReadBuffer(requestedSize, actualSize);
1146 }
1147 #endif
1148
1149 ResourceRequest ResourceHandleStreamingClient::willSendRequest(ResourceHandle*, ResourceRequest&& request, ResourceResponse&&)
1150 {
1151     return WTFMove(request);
1152 }
1153
1154 void ResourceHandleStreamingClient::didReceiveResponse(ResourceHandle*, ResourceResponse&& response)
1155 {
1156     handleResponseReceived(response);
1157 }
1158
1159 void ResourceHandleStreamingClient::didReceiveData(ResourceHandle*, const char* /* data */, unsigned /* length */, int)
1160 {
1161     ASSERT_NOT_REACHED();
1162 }
1163
1164 void ResourceHandleStreamingClient::didReceiveBuffer(ResourceHandle*, Ref<SharedBuffer>&& buffer, int /* encodedLength */)
1165 {
1166     // This pattern is suggested by SharedBuffer.h.
1167     const char* segment;
1168     unsigned position = 0;
1169     while (unsigned length = buffer->getSomeData(segment, position)) {
1170         handleDataReceived(segment, length);
1171         position += length;
1172     }
1173 }
1174
1175 void ResourceHandleStreamingClient::didFinishLoading(ResourceHandle*)
1176 {
1177     handleNotifyFinished();
1178 }
1179
1180 void ResourceHandleStreamingClient::didFail(ResourceHandle*, const ResourceError& error)
1181 {
1182     WebKitWebSrc* src = WEBKIT_WEB_SRC(m_src);
1183
1184     GST_ERROR_OBJECT(src, "Have failure: %s", error.localizedDescription().utf8().data());
1185     GST_ELEMENT_ERROR(src, RESOURCE, FAILED, ("%s", error.localizedDescription().utf8().data()), (nullptr));
1186     gst_app_src_end_of_stream(src->priv->appsrc);
1187 }
1188
1189 void ResourceHandleStreamingClient::wasBlocked(ResourceHandle*)
1190 {
1191     WebKitWebSrc* src = WEBKIT_WEB_SRC(m_src);
1192     GUniquePtr<gchar> uri;
1193
1194     GST_ERROR_OBJECT(src, "Request was blocked");
1195
1196     WTF::GMutexLocker<GMutex> locker(*GST_OBJECT_GET_LOCK(src));
1197     uri.reset(g_strdup(src->priv->originalURI.data()));
1198     locker.unlock();
1199
1200     GST_ELEMENT_ERROR(src, RESOURCE, OPEN_READ, ("Access to \"%s\" was blocked", uri.get()), (nullptr));
1201 }
1202
1203 void ResourceHandleStreamingClient::cannotShowURL(ResourceHandle*)
1204 {
1205     WebKitWebSrc* src = WEBKIT_WEB_SRC(m_src);
1206     GUniquePtr<gchar> uri;
1207
1208     GST_ERROR_OBJECT(src, "Cannot show URL");
1209
1210     WTF::GMutexLocker<GMutex> locker(*GST_OBJECT_GET_LOCK(src));
1211     uri.reset(g_strdup(src->priv->originalURI.data()));
1212     locker.unlock();
1213
1214     GST_ELEMENT_ERROR(src, RESOURCE, OPEN_READ, ("Can't show \"%s\"", uri.get()), (nullptr));
1215 }
1216
1217 #endif // USE(GSTREAMER)
1218