/// <summary>
/// Do special Blogger-specific detection logic. We want to
/// use the Blogger Atom endpoints specified in the HTML, not
/// the Blogger endpoint in the RSD.
/// </summary>
private async Task <bool> AttemptBloggerDetection(string homepageUrl, string html)
{
html = html ?? "";
BloggerDetectionHelper bloggerDetectionHelper = new BloggerDetectionHelper(homepageUrl, html);
if (!bloggerDetectionHelper.IsBlogger())
{
return(false);
}
const string BLOGGER_ATOM_PROVIDER_ID = "B6F817C3-9D39-45c1-A634-EAC792B8A635";
IBlogProvider bloggerProvider = BlogProviderManager.FindProvider(BLOGGER_ATOM_PROVIDER_ID);
if (bloggerProvider == null)
{
//Trace.Fail("Couldn't retrieve Blogger provider");
return(false);
}
_providerId = bloggerProvider.Id;
_serviceName = bloggerProvider.Name;
_clientType = bloggerProvider.ClientType;
_postApiUrl = "http://www.blogger.com/feeds/default/blogs";
BlogAccountDetector blogAccountDetector = new BlogAccountDetector(bloggerProvider.ClientType, "http://www.blogger.com", _credentials);
if (await blogAccountDetector.ValidateServiceAsync())
{
_usersBlogs = blogAccountDetector.UsersBlogs;
foreach (BlogInfo blog in _usersBlogs)
{
string blogHomepageUrl = blog.HomepageUrl;
if (NormalizeBloggerHomepageUrl(blogHomepageUrl) == NormalizeBloggerHomepageUrl(homepageUrl))
{
_hostBlogId = blog.Id;
_postApiUrl = blog.Id;
_blogName = blog.Name;
return(true);
}
}
// We didn't find the specific blog, but we'll prompt the user with the list of blogs
return(true);
}
else
{
AuthenticationErrorOccurred = blogAccountDetector.Exception is BlogClientAuthenticationException;
ReportErrorAndFail(blogAccountDetector.ErrorMessageType, blogAccountDetector.ErrorMessageParams);
return(false);
}
}
public static IBlogClient CreateClient(string clientType, string postApiUrl, IBlogCredentialsAccessor credentials, string providerId, IDictionary optionOverrides, IDictionary userOptionOverrides, IDictionary homepageOptionOverrides)
{
// create blog client reflecting the settings
IBlogClient blogClient = CreateClient(clientType, postApiUrl, credentials);
// if there is a provider associated with the client then use it to override options
// as necessary for this provider
IBlogProvider provider = BlogProviderManager.FindProvider(providerId);
if (provider != null)
{
IBlogClientOptions providerOptions = provider.ConstructBlogOptions(blogClient.Options);
blogClient.OverrideOptions(providerOptions);
}
if (homepageOptionOverrides != null)
{
OptionOverrideReader homepageOptionsReader = new OptionOverrideReader(homepageOptionOverrides);
IBlogClientOptions homepageOptions = BlogClientOptions.ApplyOptionOverrides(new OptionReader(homepageOptionsReader.Read), blogClient.Options, true);
blogClient.OverrideOptions(homepageOptions);
}
// if there are manifest overrides then apply them
if (optionOverrides != null)
{
OptionOverrideReader manifestOptionsReader = new OptionOverrideReader(optionOverrides);
IBlogClientOptions manifestOptions = BlogClientOptions.ApplyOptionOverrides(new OptionReader(manifestOptionsReader.Read), blogClient.Options, true);
blogClient.OverrideOptions(manifestOptions);
}
// if there are user overrides then apply them
if (userOptionOverrides != null)
{
OptionOverrideReader userOptionsReader = new OptionOverrideReader(userOptionOverrides);
IBlogClientOptions userOptions = BlogClientOptions.ApplyOptionOverrides(new OptionReader(userOptionsReader.Read), blogClient.Options, true);
blogClient.OverrideOptions(userOptions);
}
// return the blog client
return(blogClient);
}
public void DisplayException(IWin32Window owner, Exception ex)
{
// display a custom display message for exceptions that have one
// registered, otherwise display the generic error form
if (ex is BlogClientProviderException)
{
IBlogProvider provider = BlogProviderManager.FindProvider(_settings.ProviderId);
if (provider != null)
{
BlogClientProviderException pe = ex as BlogClientProviderException;
MessageId messageId = provider.DisplayMessageForProviderError(pe.ErrorCode, pe.ErrorString);
if (messageId != MessageId.None)
{
DisplayMessage.Show(messageId, owner);
return;
}
}
}
else if (ex is WebException)
{
WebException we = (WebException)ex;
HttpWebResponse resp = we.Response as HttpWebResponse;
if (resp != null)
{
string friendlyError = HttpRequestHelper.GetFriendlyErrorMessage(we);
Trace.WriteLine("Server response body:\r\n" + friendlyError);
ex = new BlogClientHttpErrorException(
UrlHelper.SafeToAbsoluteUri(resp.ResponseUri),
friendlyError,
we);
}
else
{
DisplayMessage msg = new DisplayMessage(MessageId.ErrorConnecting);
ex = new BlogClientException(msg.Title, msg.Text);
}
HttpRequestHelper.LogException(we);
}
// no custom message, use default UI
DisplayableExceptionDisplayForm.Show(owner, ex);
}
/// <summary>
/// Do special Blogger-specific detection logic. We want to
/// use the Blogger Atom endpoints specified in the HTML, not
/// the Blogger endpoint in the RSD.
/// </summary>
private bool AttemptBloggerDetection(string homepageUrl, string html)
{
Debug.Assert(string.IsNullOrEmpty(homepageUrl), "Google Blogger blogs don't know the homepageUrl");
Debug.Assert(string.IsNullOrEmpty(html), "Google Blogger blogs don't know the homepageUrl");
const string BLOGGER_V3_PROVIDER_ID = "343F1D83-1098-43F4-AE86-93AFC7602855";
IBlogProvider bloggerProvider = BlogProviderManager.FindProvider(BLOGGER_V3_PROVIDER_ID);
if (bloggerProvider == null)
{
Trace.Fail("Couldn't retrieve Blogger provider");
return(false);
}
BlogAccountDetector blogAccountDetector = new BlogAccountDetector(bloggerProvider.ClientType, bloggerProvider.PostApiUrl, _credentials);
if (blogAccountDetector.ValidateService())
{
CopySettingsFromProvider(bloggerProvider);
_usersBlogs = blogAccountDetector.UsersBlogs;
if (_usersBlogs.Length == 1)
{
_hostBlogId = _usersBlogs[0].Id;
_blogName = _usersBlogs[0].Name;
_homepageUrl = _usersBlogs[0].HomepageUrl;
}
// If we didn't find the specific blog, we'll prompt the user with the list of blogs
return(true);
}
else
{
AuthenticationErrorOccurred = blogAccountDetector.Exception is BlogClientAuthenticationException;
ReportErrorAndFail(blogAccountDetector.ErrorMessageType, blogAccountDetector.ErrorMessageParams);
return(false);
}
}
public void ShowPanel(string defaultServiceName, string homepageUrl, string accountId, IBlogCredentials credentials)
{
// save reference to settings
_homepageUrl = homepageUrl;
_accountId = accountId;
_credentials = credentials;
// find provider and select it (add it to the combo if necessary)
IBlogProviderDescription provider = BlogProviderManager.FindProviderByName(defaultServiceName);
if (provider != null)
{
BlogProviderDescriptionProxy providerProxy = new BlogProviderDescriptionProxy(provider);
if (!comboBoxSelectProvider.Items.Contains(providerProxy))
{
comboBoxSelectProvider.Items.Add(providerProxy);
}
comboBoxSelectProvider.SelectedItem = providerProxy;
}
else
{
// add the special 'select provider' entry and select it
if (!comboBoxSelectProvider.Items.Contains(BlogProviderDescriptionProxy.SelectProvider))
{
comboBoxSelectProvider.Items.Add(BlogProviderDescriptionProxy.SelectProvider);
}
comboBoxSelectProvider.SelectedItem = BlogProviderDescriptionProxy.SelectProvider;
}
// reset results
_targetBlog = null;
_usersBlogs = new BlogInfo[] { };
}
protected override object DetectBlogService(IProgressHost progressHost)
{
using (BlogClientUIContextSilentMode uiContextScope = new BlogClientUIContextSilentMode()) //suppress prompting for credentials
{
try
{
// copy basic account info
IBlogProvider provider = BlogProviderManager.FindProvider("4AA58E69-8C24-40b1-BACE-3BB14237E8F9");
_providerId = provider.Id;
_serviceName = provider.Name;
_clientType = provider.ClientType;
//calculate the API url based on the homepage Url.
// API URL Format: <blogurl>/_layouts/metaweblog.aspx
string homepagePath = UrlHelper.SafeToAbsoluteUri(new Uri(_homepageUrl)).Split('?')[0];
if (homepagePath == null)
{
homepagePath = "/";
}
//trim off any file information included in the URL (ex: /default.aspx)
int lastPathPartIndex = homepagePath.LastIndexOf("/", StringComparison.OrdinalIgnoreCase);
if (lastPathPartIndex != -1)
{
string lastPathPart = homepagePath.Substring(lastPathPartIndex);
if (lastPathPart.IndexOf('.') != -1)
{
homepagePath = homepagePath.Substring(0, lastPathPartIndex);
if (homepagePath == String.Empty)
{
homepagePath = "/";
}
}
}
if (homepagePath != "/" && homepagePath.EndsWith("/", StringComparison.OrdinalIgnoreCase)) //trim off trailing slash
{
homepagePath = homepagePath.Substring(0, homepagePath.Length - 1);
}
//Update the homepage url
_homepageUrl = homepagePath;
_postApiUrl = String.Format(CultureInfo.InvariantCulture, "{0}/_layouts/metaweblog.aspx", homepagePath);
if (VerifyCredentialsAndDetectAuthScheme(_postApiUrl, _blogCredentials, _credentials))
{
AuthenticationErrorOccurred = false;
//detect the user's blog ID.
if (!BlogProviderParameters.UrlContainsParameters(_postApiUrl))
{
// we detected the provider, now see if we can detect the weblog id
// (or at lease the list of the user's weblogs)
UpdateProgress(progressHost, 80, Res.Get(StringId.ProgressAnalyzingWeblogList));
AttemptUserBlogDetection();
}
}
else
{
AuthenticationErrorOccurred = true;
}
}
catch (OperationCancelledException)
{
// WasCancelled == true
}
catch (BlogClientOperationCancelledException)
{
Cancel();
// WasCancelled == true
}
catch (BlogAccountDetectorException)
{
// ErrorOccurred == true
}
catch (BlogClientAuthenticationException)
{
AuthenticationErrorOccurred = true;
// ErrorOccurred == true
}
catch (Exception ex)
{
// ErrorOccurred == true
ReportError(MessageId.WeblogDetectionUnexpectedError, ex.Message);
}
}
return(this);
}
private bool AttemptGenericAtomLinkDetection(string url, string html, bool preferredOnly)
{
const string GENERIC_ATOM_PROVIDER_ID = "D48F1B5A-06E6-4f0f-BD76-74F34F520792";
if (html == null)
{
return(false);
}
HtmlExtractor ex = new HtmlExtractor(html);
if (ex
.SeekWithin("<head>", "<body>")
.SeekWithin("<link href rel='service' type='application/atomsvc+xml'>", "</head>")
.Success)
{
IBlogProvider atomProvider = BlogProviderManager.FindProvider(GENERIC_ATOM_PROVIDER_ID);
BeginTag bt = ex.Element as BeginTag;
if (preferredOnly)
{
string classes = bt.GetAttributeValue("class");
if (classes == null)
{
return(false);
}
if (!Regex.IsMatch(classes, @"\bpreferred\b"))
{
return(false);
}
}
string linkUrl = bt.GetAttributeValue("href");
Debug.WriteLine("Atom service link detected in the blog homepage");
_providerId = atomProvider.Id;
_serviceName = atomProvider.Name;
_clientType = atomProvider.ClientType;
_blogName = string.Empty;
_postApiUrl = GetAbsoluteUrl(url, linkUrl);
IBlogClient client = BlogClientManager.CreateClient(atomProvider.ClientType, _postApiUrl, _credentials);
client.VerifyCredentials();
_usersBlogs = client.GetUsersBlogs();
if (_usersBlogs.Length == 1)
{
_hostBlogId = _usersBlogs[0].Id;
_blogName = _usersBlogs[0].Name;
/*
* if (_usersBlogs[0].HomepageUrl != null && _usersBlogs[0].HomepageUrl.Length > 0)
* _homepageUrl = _usersBlogs[0].HomepageUrl;
*/
}
// attempt to read the blog name from the homepage title
if (_blogName == null || _blogName.Length == 0)
{
HtmlExtractor ex2 = new HtmlExtractor(html);
if (ex2.Seek("<title>").Success)
{
_blogName = ex2.CollectTextUntil("title");
}
}
return(true);
}
return(false);
}
