C++ FormData::flatten方法代码示例

bool ResourceHandle::startHttp(String urlString)
{
    if (!session) {
        session = soup_session_async_new();

        soup_session_add_feature(session, SOUP_SESSION_FEATURE(getCookieJar()));

        const char* soup_debug = g_getenv("WEBKIT_SOUP_LOGGING");
        if (soup_debug) {
            int soup_debug_level = atoi(soup_debug);

            SoupLogger* logger = soup_logger_new(static_cast<SoupLoggerLogLevel>(soup_debug_level), -1);
            soup_logger_attach(logger, session);
            g_object_unref(logger);
        }
    }

    SoupMessage* msg;
    msg = soup_message_new(request().httpMethod().utf8().data(), urlString.utf8().data());
    g_signal_connect(msg, "restarted", G_CALLBACK(restartedCallback), this);

    g_signal_connect(msg, "got-headers", G_CALLBACK(gotHeadersCallback), this);
    g_signal_connect(msg, "got-chunk", G_CALLBACK(gotChunkCallback), this);

    HTTPHeaderMap customHeaders = d->m_request.httpHeaderFields();
    if (!customHeaders.isEmpty()) {
        HTTPHeaderMap::const_iterator end = customHeaders.end();
        for (HTTPHeaderMap::const_iterator it = customHeaders.begin(); it != end; ++it)
            soup_message_headers_append(msg->request_headers, it->first.utf8().data(), it->second.utf8().data());
    }

    FormData* httpBody = d->m_request.httpBody();
    if (httpBody && !httpBody->isEmpty()) {
        // Making a copy of the request body isn't the most efficient way to
        // serialize it, but by far the most simple. Dealing with individual
        // FormData elements and shared buffers should be more memory
        // efficient.
        //
        // This possibly isn't handling file uploads/attachments, for which
        // shared buffers or streaming should definitely be used.
        Vector<char> body;
        httpBody->flatten(body);
        soup_message_set_request(msg, d->m_request.httpContentType().utf8().data(),
                                 SOUP_MEMORY_COPY, body.data(), body.size());
    }

    d->m_msg = static_cast<SoupMessage*>(g_object_ref(msg));
    soup_session_queue_message(session, d->m_msg, finishedCallback, this);

    return true;
}

static bool startHttp(ResourceHandle* handle)
{
    ASSERT(handle);

    SoupSession* session = handle->defaultSession();
    ensureSessionIsInitialized(session);

    ResourceHandleInternal* d = handle->getInternal();

    ResourceRequest request(handle->request());
    KURL url(request.url());
    url.removeFragmentIdentifier();
    request.setURL(url);

    d->m_msg = request.toSoupMessage();
    if (!d->m_msg)
        return false;

    if(!handle->shouldContentSniff())
        soup_message_disable_feature(d->m_msg, SOUP_TYPE_CONTENT_SNIFFER);

    g_signal_connect(d->m_msg, "restarted", G_CALLBACK(restartedCallback), handle);
    g_signal_connect(d->m_msg, "got-headers", G_CALLBACK(gotHeadersCallback), handle);
    g_signal_connect(d->m_msg, "content-sniffed", G_CALLBACK(contentSniffedCallback), handle);
    g_signal_connect(d->m_msg, "got-chunk", G_CALLBACK(gotChunkCallback), handle);

    g_object_set_data(G_OBJECT(d->m_msg), "resourceHandle", reinterpret_cast<void*>(handle));

    FormData* httpBody = d->m_request.httpBody();
    if (httpBody && !httpBody->isEmpty()) {
        size_t numElements = httpBody->elements().size();

        // handle the most common case (i.e. no file upload)
        if (numElements < 2) {
            Vector<char> body;
            httpBody->flatten(body);
            soup_message_set_request(d->m_msg, d->m_request.httpContentType().utf8().data(),
                                     SOUP_MEMORY_COPY, body.data(), body.size());
        } else {
            /*
             * we have more than one element to upload, and some may
             * be (big) files, which we will want to mmap instead of
             * copying into memory; TODO: support upload of non-local
             * (think sftp://) files by using GIO?
             */
            soup_message_body_set_accumulate(d->m_msg->request_body, FALSE);
            for (size_t i = 0; i < numElements; i++) {
                const FormDataElement& element = httpBody->elements()[i];

                if (element.m_type == FormDataElement::data)
                    soup_message_body_append(d->m_msg->request_body, SOUP_MEMORY_TEMPORARY, element.m_data.data(), element.m_data.size());
                else {
                    /*
                     * mapping for uploaded files code inspired by technique used in
                     * libsoup's simple-httpd test
                     */
                    GError* error = 0;
                    gchar* fileName = filenameFromString(element.m_filename);
                    GMappedFile* fileMapping = g_mapped_file_new(fileName, false, &error);

                    g_free(fileName);

                    if (error) {
                        g_error_free(error);
                        g_signal_handlers_disconnect_matched(d->m_msg, G_SIGNAL_MATCH_DATA,
                                                             0, 0, 0, 0, handle);
                        g_object_unref(d->m_msg);
                        d->m_msg = 0;

                        return false;
                    }

                    SoupBuffer* soupBuffer = soup_buffer_new_with_owner(g_mapped_file_get_contents(fileMapping),
                                                                        g_mapped_file_get_length(fileMapping),
                                                                        fileMapping,
#if GLIB_CHECK_VERSION(2, 21, 3)
                                                                        reinterpret_cast<GDestroyNotify>(g_mapped_file_unref));
#else
                                                                        reinterpret_cast<GDestroyNotify>(g_mapped_file_free));
#endif
                    soup_message_body_append_buffer(d->m_msg->request_body, soupBuffer);
                    soup_buffer_free(soupBuffer);
                }
            }
        }
    }