google-gdataを使ってBloggerブログを操作するサンプルコード

title: google-gdataを使ってBloggerブログを操作するサンプルコード
url: http://code.google.com/p/google-gdata/source/browse/trunk/clients/cs/samples/blogger/ConsoleSample.cs
http://code.google.com/p/google-gdata/

snippet:
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using System;

using System.Text;

using Google.GData.Client;

using System.Net;

using System.Xml;

using System.Text.RegularExpressions;

namespace BloggerDevSample

{

class ConsoleSample

{

/** Lists the user's blogs. */

static void ListUserBlogs(Service service)

{

Console.WriteLine("\nRetrieving a list of blogs");

FeedQuery query = new FeedQuery();

// Retrieving a list of blogs

query.Uri = new Uri("http://www.blogger.com/feeds/default/blogs");

AtomFeed feed = null;

feed = service.Query(query);

foreach (AtomEntry entry in feed.Entries)

{

Console.WriteLine("  Blog title: " + entry.Title.Text);

}

}

/** Lists the user's blogs and returns the URI for posting new entries

* to the blog which the user selected.

*/

static Uri SelectUserBlog(Service service)

{

Console.WriteLine("\nPlease select a blog on which to post.");

FeedQuery query = new FeedQuery();

// Retrieving a list of blogs

query.Uri = new Uri("http://www.blogger.com/feeds/default/blogs");

AtomFeed feed = service.Query(query);

// Publishing a blog post

Uri blogPostUri = null;

if (feed != null)

{

foreach (AtomEntry entry in feed.Entries)

{

// Print out the title of the Blog

Console.WriteLine("  Blog name: " + entry.Title.Text);

Console.Write("  Post to this blog? (y/n): ");

if (Console.ReadLine().Equals("y"))

{

// find the href in the link with a rel pointing to the blog's feed

for (int i = 0; i < entry.Links.Count; i++)

{

if (entry.Links[i].Rel.Equals("http://schemas.google.com/g/2005#post"))

{

blogPostUri = new Uri(entry.Links[i].HRef.ToString());

Console.WriteLine("  Your new posts will be sent to " + blogPostUri.AbsoluteUri.ToString());

}

}

return blogPostUri;

}

}

}

return blogPostUri;

}

/** Creates a new blog entry and sends it to the specified Uri */

static AtomEntry PostNewEntry(Service service, Uri blogPostUri)

{

Console.WriteLine("\nPublishing a blog post");

AtomEntry createdEntry = null;

if (blogPostUri != null)

{

// construct the new entry

AtomEntry newPost = new AtomEntry();

newPost.Title.Text = "Marriage!";

newPost.Content = new AtomContent();

newPost.Content.Content = "<div xmlns='http://www.w3.org/1999/xhtml'>" +

"<p>Mr. Darcy has <em>proposed marriage</em> to me!</p>" +

"<p>He is the last man on earth I would ever desire to marry.</p>" +

"<p>Whatever shall I do?</p>" +

"</div>";

newPost.Content.Type = "xhtml";

newPost.Authors.Add(new AtomPerson());

newPost.Authors[0].Name = "Elizabeth Bennet";

newPost.Authors[0].Email = "liz@gmail.com";

createdEntry = service.Insert(blogPostUri, newPost);

if (createdEntry != null)

{

Console.WriteLine("  New blog post created with title: " + createdEntry.Title.Text);

}

}

return createdEntry;

}

/** Creates a new blog entry and sends it to the specified Uri */

static void PostAndDeleteNewDraftEntry(Service service, Uri blogPostUri)

{

Console.WriteLine("\nCreating a draft blog post");

AtomEntry draftEntry = null;

if (blogPostUri != null)

{

// construct the new entry

AtomEntry newPost = new AtomEntry();

newPost.Title.Text = "Marriage! (Draft)";

newPost.Content = new AtomContent();

newPost.Content.Content = "<div xmlns='http://www.w3.org/1999/xhtml'>" +

"<p>Mr. Darcy has <em>proposed marriage</em> to me!</p>" +

"<p>He is the last man on earth I would ever desire to marry.</p>" +

"<p>Whatever shall I do?</p>" +

"</div>";

newPost.Content.Type = "xhtml";

newPost.Authors.Add(new AtomPerson());

newPost.Authors[0].Name = "Elizabeth Bennet";

newPost.Authors[0].Email = "liz@gmail.com";

newPost.IsDraft = true;

draftEntry = service.Insert(blogPostUri, newPost);

if (draftEntry != null)

{

Console.WriteLine("  New draft post created with title: " + draftEntry.Title.Text);

// Delete the newly created draft entry

Console.WriteLine("  Press enter to delete the draft blog post");

Console.ReadLine();

draftEntry.Delete();

}

}

}

/** Display the titles for all entries in the previously selected blog. */

static void ListBlogEntries(Service service, Uri blogUri)

{

if (blogUri != null)

{

Console.WriteLine("\nRetrieving all blog posts");

// Retrieve all posts in a blog

FeedQuery query = new FeedQuery();

Console.WriteLine("  Query URI: " + blogUri.ToString());

query.Uri = blogUri;

AtomFeed feed = service.Query(query);

foreach (AtomEntry entry in feed.Entries)

{

Console.WriteLine("  Entry Title: " + entry.Title.Text);

}

}

}

/** Display title for entries in the blog in the hard coded date range. */

static void ListBlogEntriesInDateRange(Service service, Uri blogUri)

{

Console.WriteLine("\nRetrieving posts using query parameters");

// Retrieve all posts in a blog between Jan 1, 2006 and Apr 12, 2007

FeedQuery query = new FeedQuery();

query.Uri = blogUri;

query.MinPublication = new DateTime(2006, 1, 1);

query.MaxPublication = new DateTime(2007, 4, 12);

AtomFeed feed = service.Query(query);

foreach (AtomEntry entry in feed.Entries)

{

Console.WriteLine("  Entry Title: " + entry.Title.Text);

}

}

/** Change the contents of the newly created blog entry. */

static AtomEntry EditEntry(AtomEntry toEdit)

{

Console.WriteLine("\nUpdating post");

// Edit the new entry

if (toEdit != null)

{

toEdit.Title.Text = "Marriage Woes!";

Console.WriteLine("  Press enter to update");

Console.ReadLine();

toEdit = toEdit.Update();

}

return toEdit;

}

/** Delete the specified blog entry. */

static void DeleteEntry(AtomEntry toDelete)

{

Console.WriteLine("\nDeleting post");

// Delete the edited entry

if (toDelete != null)

{

Console.WriteLine("  Press enter to delete the new blog post");

Console.ReadLine();

toDelete.Delete();

}

}

/** Get the comments feed URI for the desired blog entry. */

static Uri SelectBlogEntry(Service service, Uri blogPostUri)

{

Console.WriteLine("\nPlease select a blog entry on which to comment.");

FeedQuery query = new FeedQuery();

query.Uri = blogPostUri;

AtomFeed feed = service.Query(query);

Uri commentPostUri = null;

if (feed != null)

{

foreach (AtomEntry entry in feed.Entries)

{

// Print out the title of the Blog

Console.WriteLine("  Blog entry title: " + entry.Title.Text);

Console.Write("  Post a comment on this entry? (y/n): ");

if (Console.ReadLine().Equals("y"))

{

// Create the Post URL for adding a comment by finding this entry's id number.

// Find the href in the link with a rel pointing to the blog's feed.

for (int i = 0; i < entry.Links.Count; i++)

{

if (entry.Links[i].Rel == "edit")

{

string commentUriStart = Regex.Replace(blogPostUri.ToString(), "/posts/default", "");

string selfLink = entry.Links[i].HRef.ToString();

string entryId = Regex.Replace(selfLink, blogPostUri.ToString() + "/", "");

// Build the comment URI from the blog id in and the entry id.

commentPostUri = new Uri(commentUriStart + "/" + entryId + "/comments/default");

Console.WriteLine("  Your new comments will be sent to " + commentPostUri.ToString());

return commentPostUri;

}

}

}

}

}

return commentPostUri;

}

static AtomEntry PostNewComment(Service service, Uri commentPostUri)

{

Console.WriteLine("\nCommenting on a blog post");

AtomEntry postedComment = null;

if (commentPostUri != null)

{

// Add a comment.

AtomEntry comment;

comment = new AtomEntry();

comment.Title.Text = "This is my first comment";

comment.Content.Content = "This is my first comment";

comment.Authors.Add(new AtomPerson());

comment.Authors[0].Name = "Blog Author Name";

postedComment = service.Insert(commentPostUri, comment);

Console.WriteLine("  Result's title: " + postedComment.Title.Text);

}

return postedComment;

}

static void ListEntryComments(Service service, Uri commentUri)

{

if (commentUri != null)

{

Console.WriteLine("\nRetrieving all blog post comments");

// Retrieve all comments on a blog entry

FeedQuery query = new FeedQuery();

Console.WriteLine("  Query URI: " + commentUri.ToString());

query.Uri = commentUri;

AtomFeed feed = service.Query(query);

foreach (AtomEntry entry in feed.Entries)

{

Console.WriteLine("  Comment Title: " + entry.Title.Text);

}

}

}

static void DeleteComment(AtomEntry commentEntry)

{

Console.WriteLine("\nDeleting the comment");

if (commentEntry != null)

{

// Delete the comment.

Console.WriteLine("  Press enter to delete the new comment post");

Console.ReadLine();

commentEntry.Delete();

}

}

static void Main(string[] args)

{

Service service = new Service("blogger", "blogger-example");

// ClientLogin using username/password authentication

string username;

string password;

if (args.Length != 2)

{

Console.WriteLine("Usage: BloggerDevSample.exe <username> <password>");

return;

}

else

{

username = args[0];

password = args[1];

}

service.Credentials = new GDataCredentials(username, password);

ListUserBlogs(service);

Uri blogPostUri = SelectUserBlog(service);

AtomEntry createdEntry = PostNewEntry(service, blogPostUri);

PostAndDeleteNewDraftEntry(service, blogPostUri);

ListBlogEntries(service, blogPostUri);

ListBlogEntriesInDateRange(service, blogPostUri);

AtomEntry editedEntry = EditEntry(createdEntry);

DeleteEntry(editedEntry);

Uri commentPostUri = SelectBlogEntry(service, blogPostUri);

AtomEntry commentEntry = PostNewComment(service, commentPostUri);

ListEntryComments(service, commentPostUri);

DeleteComment(commentEntry);

Console.WriteLine("Press enter to quit");

Console.ReadLine();

}

}

}

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