示例#1
0
        public string Capture(int timeoutMs)
        {
            // flag indicating whether we should continue with the capture
            bool continueCapture = true;

            // request the page
            HttpWebResponse response = RequestPage(TargetUrl, timeoutMs);

            OnHeadersReceived(response.Headers, ref continueCapture);
            if (!continueCapture)
            {
                throw new OperationCancelledException();
            }

            // transfer it to a stream
            MemoryStream pageStream = new MemoryStream();

            using (Stream responseStream = response.GetResponseStream())
                StreamHelper.Transfer(responseStream, pageStream);
            pageStream.Seek(0, SeekOrigin.Begin);

            // allow filter on content
            OnContentReceived(new StreamReader(pageStream).ReadToEnd(), ref continueCapture);
            if (!continueCapture)
            {
                throw new OperationCancelledException();
            }
            pageStream.Seek(0, SeekOrigin.Begin);

            // Read the stream into a lightweight HTML doc. We use from LightWeightHTMLDocument.FromIHTMLDocument2
            // instead of LightWeightHTMLDocument.FromStream because from stream improperly shoves a saveFrom declaration
            // above the docType (bug 289357)
            IHTMLDocument2          doc  = HTMLDocumentHelper.StreamToHTMLDoc(pageStream, TargetUrl, false);
            LightWeightHTMLDocument ldoc = LightWeightHTMLDocument.FromIHTMLDocument2(doc, TargetUrl, true);

            // download references
            FileBasedSiteStorage       siteStorage = new FileBasedSiteStorage(DestinationPath, "index.htm");
            PageToDownload             page        = new PageToDownload(ldoc, TargetUrl, siteStorage.RootFile);
            PageAndReferenceDownloader downloader  = new PageAndReferenceDownloader(new PageToDownload[] { page }, siteStorage);

            downloader.Download(new TimeoutProgressHost(timeoutMs));

            // return path to captured page
            return(Path.Combine(DestinationPath, siteStorage.RootFile));
        }
        public string Capture(int timeoutMs)
        {
            // flag indicating whether we should continue with the capture
            bool continueCapture = true ;

            // request the page
            HttpWebResponse response = RequestPage(TargetUrl, timeoutMs);
            OnHeadersReceived(response.Headers, ref continueCapture) ;
            if ( !continueCapture )
                throw new OperationCancelledException() ;

            // transfer it to a stream
            MemoryStream pageStream = new MemoryStream();
            using ( Stream responseStream = response.GetResponseStream() )
                StreamHelper.Transfer(responseStream, pageStream);
            pageStream.Seek(0, SeekOrigin.Begin) ;

            // allow filter on content
            OnContentReceived( new StreamReader(pageStream).ReadToEnd(), ref continueCapture ) ;
            if ( !continueCapture )
                throw new OperationCancelledException() ;
            pageStream.Seek(0, SeekOrigin.Begin) ;

            // Read the stream into a lightweight HTML doc. We use from LightWeightHTMLDocument.FromIHTMLDocument2
            // instead of LightWeightHTMLDocument.FromStream because from stream improperly shoves a saveFrom declaration
            // above the docType (bug 289357)
            IHTMLDocument2 doc = HTMLDocumentHelper.StreamToHTMLDoc(pageStream, TargetUrl, false);
            LightWeightHTMLDocument ldoc = LightWeightHTMLDocument.FromIHTMLDocument2(doc, TargetUrl, true);

            // download references
            FileBasedSiteStorage siteStorage = new FileBasedSiteStorage(DestinationPath, "index.htm");
            PageToDownload page = new PageToDownload(ldoc, TargetUrl, siteStorage.RootFile);
            PageAndReferenceDownloader downloader = new PageAndReferenceDownloader(new PageToDownload[]{page}, siteStorage) ;
            downloader.Download(new TimeoutProgressHost(timeoutMs)) ;

            // return path to captured page
            return Path.Combine(DestinationPath, siteStorage.RootFile) ;
        }
        private string DownloadTemplateFiles(string templateContents, string templateUrl, IProgressHost progress)
        {
            progress.UpdateProgress(Res.Get(StringId.ProgressDownloadingSupportingFiles));
            FileBasedSiteStorage files = new FileBasedSiteStorage(_blogTemplateDir);

            // convert the string to a stream
            MemoryStream templateStream = new MemoryStream();
            StreamWriter writer = new StreamWriter(templateStream, Encoding.UTF8);
            writer.Write(templateContents);
            writer.Flush();
            templateStream.Seek(0, SeekOrigin.Begin);

            //read the stream into a lightweight HTML.  Note that we use from LightWeightHTMLDocument.FromIHTMLDocument2
            //instead of LightWeightHTMLDocument.FromStream because from stream improperly shoves a saveFrom declaration
            //above the docType (bug 289357)
            IHTMLDocument2 doc = HTMLDocumentHelper.StreamToHTMLDoc(templateStream, templateUrl, true);
            LightWeightHTMLDocument ldoc = LightWeightHTMLDocument.FromIHTMLDocument2(doc, templateUrl, true, false);

            PageDownloadContext downloadContext = new PageDownloadContext(0);
            ApplyCredentials(downloadContext, templateUrl);
            using (PageToDownloadFactory downloadFactory = new PageToDownloadFactory(ldoc, downloadContext, _parentControl))
            {
                //calculate the dependent styles and resources
                ProgressTick tick = new ProgressTick(progress, 50, 100);
                downloadFactory.CreatePagesToDownload(tick);
                tick.UpdateProgress(100, 100);

                //download the dependent styles and resources
                tick = new ProgressTick(progress, 50, 100);
                PageAndReferenceDownloader downloader = new PageAndReferenceDownloader(downloadFactory.PagesToDownload, files);
                this.ApplyCredentials(downloader, templateUrl);
                downloader.Download(tick);
                tick.UpdateProgress(100, 100);

                //Expand out the relative paths in the downloaded HTML file with absolute paths.
                //Note: this is necessary so that template resources are not improperly resolved relative
                //      to the location of the file the editor is editing.
                string blogTemplateFile = Path.Combine(_blogTemplateDir, files.RootFile);
                string origFile = blogTemplateFile + ".token";
                File.Move(blogTemplateFile, origFile);
                string absPath = String.Format(CultureInfo.InvariantCulture, "file:///{0}/{1}", _blogTemplateDir.Replace('\\', '/'), downloader.PathToken);
                TextHelper.ReplaceInFile(origFile, downloader.PathToken, blogTemplateFile, absPath);
                File.Delete(origFile);

                //fix up the files
                FixupDownloadedFiles(blogTemplateFile, files, downloader.PathToken);

                //complete the progress.
                progress.UpdateProgress(100, 100);

                File.WriteAllText(blogTemplateFile + ".path", absPath);
                return blogTemplateFile;
            }
        }
 private void ApplyCredentials(PageAndReferenceDownloader downloader, string url)
 {
     WinInetCredentialsContext credentialsContext = CreateCredentialsContext(url);
     if (credentialsContext != null)
         downloader.CredentialsContext = credentialsContext;
 }