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comparison PostWriterWebService blog/PostWriterWebService.asmx @ 98:4895116b8232

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subida del web service para escribir posts en el blog del portal
author jorge.rowies
date Sat, 04 Jun 2011 14:10:21 -0300
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89:24e9488ac152 98:4895116b8232
1 <%@ WebService Language="C#" Class="PostWriterWebService" %>
2
3 using System;
4 using System.Configuration;
5 using System.Globalization;
6 using System.Linq;
7 using System.Security.Cryptography;
8 using System.Web;
9 using System.Web.Services;
10 using System.Web.Services.Protocols;
11 using Telerik.Blogs;
12
13 [WebService(Namespace = "http://tempuri.org/")]
14 [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
15 // To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line.
16 // [System.Web.Script.Services.ScriptService]
17 public class PostWriterWebService : System.Web.Services.WebService {
18
19 [WebMethod]
20 public void WriteBlogPost(string securityToken, string blogName, string postTitle, string postHtmlContent, string postAuthor, bool setPublicationDate)
21 {
22 checkSecurityToken(securityToken);
23 writePost(blogName, postTitle, postHtmlContent, postAuthor, setPublicationDate);
24 }
25
26 private void checkSecurityToken(string securityToken)
27 {
28 if (string.IsNullOrEmpty(securityToken)) throw new ArgumentNullException("securityToken");
29
30 var now = DateTime.UtcNow;
31 now = new DateTime(now.Year, now.Month, now.Day, now.Hour, now.Minute, 0, 0);
32
33 var masterKey = System.Configuration.ConfigurationManager.AppSettings["BlogWriterMasterKey"];
34 if (string.IsNullOrEmpty(masterKey))
35 throw new Exception("Master key not found");
36
37 var token1 = buildToken(masterKey, now.AddMinutes(-1));
38 var token2 = buildToken(masterKey, now);
39 var token3 = buildToken(masterKey, now.AddMinutes(1));
40
41 if (!securityToken.Equals(token1) && !securityToken.Equals(token2) && !securityToken.Equals(token3))
42 throw new Exception("Invalid security token");
43 }
44
45 private string buildToken(string key, DateTime time)
46 {
47 var aux = key + time.ToString(CultureInfo.InvariantCulture);
48
49 var enc = System.Text.Encoding.ASCII.GetEncoder();
50
51 var data = new byte[aux.Length];
52 enc.GetBytes(aux.ToCharArray(), 0, aux.Length, data, 0, true);
53
54 var md5 = new MD5CryptoServiceProvider();
55 var result = md5.ComputeHash(data);
56
57 return BitConverter.ToString(result).Replace("-", "").ToLower();
58 }
59
60 private void writePost(string blogName, string postTitle, string postHtmlContent, string postAuthor, bool setPublicationDate)
61 {
62 if (string.IsNullOrEmpty(blogName)) throw new ArgumentNullException("blogName");
63 if (string.IsNullOrEmpty(postTitle)) throw new ArgumentNullException("postTitle");
64 if (string.IsNullOrEmpty(postHtmlContent)) throw new ArgumentNullException("postHtmlContent");
65 if (string.IsNullOrEmpty(postAuthor)) throw new ArgumentNullException("postAuthor");
66
67 try
68 {
69 var manager = new BlogManager();
70
71 var blogs = manager.GetBlogs();
72 var blog = (blogs.Cast<IBlog>()).SingleOrDefault(b => b.Name.Equals(blogName));
73
74 if (blog == null)
75 throw new Exception(string.Format("Blog '{0}' no encontrado", blogName));
76
77 var postContent = manager.Content.CreateContent("text/html");
78
79 postContent.ParentID = blog.ID;
80 postContent.Content = postHtmlContent;
81 postContent.SetMetaData("Author", postAuthor);
82 postContent.SetMetaData("Title", postTitle);
83 if (setPublicationDate)
84 postContent.SetMetaData("Publication_Date", DateTime.Now);
85
86 manager.Content.SaveContent(postContent);
87 }
88 catch (Exception e)
89 {
90 throw new Exception("Ocurrio un error creando el post", e);
91 }
92 }
93 }