A web service which writes to a blog database (dB=Blinky). [Original programmer: Gayle Laakmann; maintained by Pat Palmer.]

The following operations are supported. For a formal definition, please review the Service Description.

• BlogIDExists
  Returns true if a blog with the specified ID exists. Returns false otherwise.
• BlogIDMatchesUser
  Returns true if the specified user has a blog with the specified id. Returns false otherwise.
• CommentIDExists
  Returns true if a comment with the specified ID exists. Returns false otherwise.
• GetCommentLength
  Returns max length of a comment.
• GetPageLength
  Returns max length of a page.
• GetTitleLength
  Returns max length of a title.
• GetUserDisplayName
  Returns the DisplayName for specified user. Returns empty string if user doesn't exist.
• PasswordOK
  Returns true if the password matches the userID. Returns false otherwise.
• PostBlog
  If the userID and password match, it writes the title/blog to the database. Returns the blogID if the action succeeds. Returns -1 if anything fails.
• PostBlogComment
  If the userID and password match, it writes the comment with body to the blog with id blogID. Returns the commentID if the action succeeds. Returns -1 if anything fails.
• RegisterUser
  Adds userID, displayName, and password to the database. Returns false if the action fails.
• UserExists
  Returns true if user exists. Returns false otherwise.