1
using System;
2using System.Collections.Generic;
3using System.Globalization;
4using System.IO;
5using System.Text;
6using System.Web;
7using System.Xml;
8
9namespace LiveBlog.Core.API.MetaWeblog
10
...{
11
/**//// <summary>
12
/// Obejct is the incoming XML-RPC Request. Handles parsing the XML-RPC and
13 /// fills its properties with the values sent in the request.
14
/// </summary>
15 internal class XMLRPCRequest
16 ...{
17 Contructors#region Contructors
18 /**//// <summary>
19 /// Loads XMLRPCRequest object from HttpContext
20 /// </summary>
21 /// <param name="input">incoming HttpContext</param>
22 public XMLRPCRequest(HttpContext input)
23 ...{
24 string inputXML = ParseRequest(input);
25 LoadXMLRequest(inputXML); // Loads Method Call and Associated Variables
26 }
27 #endregion
28
29 Local Vars#region Local Vars
30
31 private string _methodName;
32 private List<XmlNode> _inputParams;
33 private string _appKey;
34 private string _blogID;
35 private int _numberOfPosts;
36 private string _password;
37 private MWAPost _post;
38 private string _postID;
39 private bool _publish;
40 private string _userName;
41 private MWAMediaObject _media;
42 private MWAPage _page;
43 private string _pageID;
44
45 #endregion
46
47 Public Properties#region Public Properties
48 /**//// <summary>
49 /// Name of Called Metaweblog Function
50 /// </summary>
51 public string MethodName
52 ...{
53 get ...{ return _methodName; }
54 }
55
56 /**//// <summary>
57 /// AppKey is a key generated by the calling application. It is sent with blogger API calls.
58 /// </summary>
59 /// <remarks>
60 /// BlogEngine.NET doesn't require specific AppKeys for API calls. It is no longer standard practive.
61 /// </remarks>
62 public string AppKey
63 ...{
64 get ...{ return _appKey; }
65 }
66
67 /**//// <summary>
68 /// ID of the Blog to call the function on. Since BlogEngine supports only a single blog instance,
69 /// this incoming parameter is not used.
70 /// </summary>
71 public string BlogID
72 ...{
73 get ...{ return _blogID; }
74 }
75
76 /**//// <summary>
77 /// MediaObject is a struct sent by the metaWeblog.newMediaObject function.
78 /// It contains information about the media and the object in a bit array.
79 /// </summary>
80 public MWAMediaObject MediaObject
81 ...{
82 get ...{ return _media; }
83 }
84
85 /**//// <summary>
86 /// Number of post request by the metaWeblog.getRecentPosts function
87 /// </summary>
88 public int NumberOfPosts
89 ...{
90 get ...{ return _numberOfPosts; }
91 }
92
93 /**//// <summary>
94 /// Password for user validation
95 /// </summary>
96 public string Password
97 ...{
98 get ...{ return _password; }
99 }
100
101 /**//// <summary>
102 /// Metaweblog Post struct containing information post including title, content, and categories.
103 /// </summary>
104 public MWAPost Post
105 ...{
106 get ...{ return _post; }
107 }
108
109 /**//// <summary>
110 /// Metaweblog Page Struct
111 /// </summary>
112 public MWAPage Page
113 ...{
114 get ...{ return _page; }
115 }
116
117 /**//// <summary>
118 /// The PostID Guid in string format
119 /// </summary>
120 public string PostID
121 ...{
122 get ...{ return _postID; }
123 }
124
125 /**//// <summary>
126 /// PageID Guid in string format
127 /// </summary>
128 public string PageID
129 ...{
130 get ...{ return _pageID; }
131 }
132
133 /**//// <summary>
134 /// Publish determines wheter or not a post will be marked as published by BlogEngine.
135 /// </summary>
136 public bool Publish
137 ...{
138 get ...{ return _publish; }
139 }
140
141 /**//// <summary>
142 /// Login for user validation
143 /// </summary>
144 public string UserName
145 ...{
146 get ...{ return _userName; }
147 }
148
149 #endregion
150
151 Private Methods#region Private Methods
152
153 /**//// <summary>
154 /// Retrieves the content of the input stream
155 /// and return it as plain text.
156 /// </summary>
157 private string ParseRequest(HttpContext context)
158 ...{
159 byte[] buffer = new byte[context.Request.InputStream.Length];
160 context.Request.InputStream.Read(buffer, 0, buffer.Length);
161
162 return System.Text.Encoding.UTF8.GetString(buffer);
163 }
164
165 /**//// <summary>
166 /// Loads object properties with contents of passed xml
167 /// </summary>
168 /// <param name="xml">xml doc with methodname and parameters</param>
169 private void LoadXMLRequest(string xml)
170 ...{
171 XmlDocument request = new XmlDocument();
172 try
173 ...{
174 if (!(xml.StartsWith("<?xml") || xml.StartsWith("<method")))
175 ...{
176 xml = xml.Substring(xml.IndexOf("<?xml"));
177 }
178 request.LoadXml(xml);
179 }
180 catch (Exception ex)
181 ...{
182 throw new MetaWeblogException("01", "Invalid XMLRPC Request. (" + ex.Message + ")");
183 }
184
185 // Method name is always first
186 _methodName = request.DocumentElement.ChildNodes[0].InnerText;
187
188 // Parameters are next (and last)
189 _inputParams = new List<XmlNode>();
190 foreach (XmlNode node in request.SelectNodes("/methodCall/params/param"))
191 ...{
192 _inputParams.Add(node);
193 }
194
195 // Determine what params are what by method name
196 switch (_methodName)
197 ...{
198 case "metaWeblog.newPost":
199 _blogID = _inputParams[0].InnerText;
200 _userName = _inputParams[1].InnerText;
201 _password = _inputParams[2].InnerText;
202 _post = GetPost(_inputParams[3]);
203 if (_inputParams[4].InnerText == "0" || _inputParams[4].InnerText == "false")
204 _publish = false;
205 else
206 _publish = true;
207 break;
208 case "metaWeblog.editPost":
209 _postID = _inputParams[0].InnerText;
210 _userName = _inputParams[1].InnerText;
211 _password = _inputParams[2].InnerText;
212 _post = GetPost(_inputParams[3]);
213 if (_inputParams[4].InnerText == "0" || _inputParams[4].InnerText == "false")
214 _publish = false;
215 else
216 _publish = true;
217 break;
218 case "metaWeblog.getPost":
219 _postID = _inputParams[0].InnerText;
220 _userName = _inputParams[1].InnerText;
221 _password = _inputParams[2].InnerText;
222 break;
223 case "metaWeblog.newMediaObject":
224 _blogID = _inputParams[0].InnerText;
225 _userName = _inputParams[1].InnerText;
226 _password = _inputParams[2].InnerText;
227 _media = GetMediaObject(_inputParams[3]);
228 break;
229 case "metaWeblog.getCategories":
230 case "wp.getPageList":
231 case "wp.getPages":
232 _blogID = _inputParams[0].InnerText;
233 _userName = _inputParams[1].InnerText;
234 _password = _inputParams[2].InnerText;
235 break;
236 case "metaWeblog.getRecentPosts":
237 _blogID = _inputParams[0].InnerText;
238 _userName = _inputParams[1].InnerText;
239 _password = _inputParams[2].InnerText;
240 _numberOfPosts = Int32.Parse(_inputParams[3].InnerText, CultureInfo.InvariantCulture);
241 break;
242 case "blogger.getUsersBlogs":
243 case "metaWeblog.getUsersBlogs":
244 _appKey = _inputParams[0].InnerText;
245 _userName = _inputParams[1].InnerText;
246 _password = _inputParams[2].InnerText;
247 break;
248 case "blogger.deletePost":
249 _appKey = _inputParams[0].InnerText;
250 _postID = _inputParams[1].InnerText;
251 _userName = _inputParams[2].InnerText;
252 _password = _inputParams[3].InnerText;
253 if (_inputParams[4].InnerText == "0" || _inputParams[4].InnerText == "false")
254 _publish = false;
255 else
256 _publish = true;
257 break;
258 case "blogger.getUserInfo":
259 _appKey = _inputParams[0].InnerText;
260 _userName = _inputParams[1].InnerText;
261 _password = _inputParams[2].InnerText;
262 break;
263 case "wp.newPage":
264 _blogID = _inputParams[0].InnerText;
265 _userName = _inputParams[1].InnerText;
266 _password = _inputParams[2].InnerText;
267 _page = GetPage(_inputParams[3]);
268 if (_inputParams[4].InnerText == "0" || _inputParams[4].InnerText == "false")
269 _publish = false;
270 else
271 _publish = true;
272 break;
273 case "wp.getPage":
274 _blogID = _inputParams[0].InnerText;
275 _pageID = _inputParams[1].InnerText;
276 _userName = _inputParams[2].InnerText;
277 _password = _inputParams[3].InnerText;
278 break;
279 case "wp.editPage":
280 _blogID = _inputParams[0].InnerText;
281 _pageID = _inputParams[1].InnerText;
282 _userName = _inputParams[2].InnerText;
283 _password = _inputParams[3].InnerText;
284 _page = GetPage(_inputParams[4]);
285 if (_inputParams[5].InnerText == "0" || _inputParams[5].InnerText == "false")
286 _publish = false;
287 else
288 _publish = true;
289 break;
290 case "wp.deletePage":
291 _blogID = _inputParams[0].InnerText;
292 _userName = _inputParams[1].InnerText;
293 _password = _inputParams[2].InnerText;
294 _pageID = _inputParams[3].InnerText;
295 break;
296 default:
297 throw new MetaWeblogException("02", "Unknown Method. (" + _methodName + ")");
298
299 }
300
301 }
302
303 /**//// <summary>
304 /// Creates a Metaweblog Post object from the XML struct
305 /// </summary>
306 /// <param name="node">XML contains a Metaweblog Post Struct</param>
307 /// <returns>Metaweblog Post Struct Obejct</returns>
308 private MWAPost GetPost(XmlNode node)
309 ...{
310 MWAPost temp = new MWAPost();
311 List<string> cats = new List<string>();
312 List<string> tags = new List<string>();
313
314 // Require Title and Description
315 try
316 ...{
317 temp.title = node.SelectSingleNode("value/struct/member[name='title']").LastChild.InnerText;
318 temp.description = node.SelectSingleNode("value/struct/member[name='description']").LastChild.InnerText;
319 }
320 catch (Exception ex)
321 ...{
322 throw new MetaWeblogException("05", "Post Struct Element, Title or Description, not Sent. (" + ex.Message + ")");
323 }
324 if (node.SelectSingleNode("value/struct/member[name='link']") == null)
325 temp.link = "";
326 else
327 temp.link = node.SelectSingleNode("value/struct/member[name='link']").LastChild.InnerText;
328
329 if (node.SelectSingleNode("value/struct/member[name='mt_allow_comments']") == null)
330 temp.commentPolicy = "";
331 else
332 temp.commentPolicy = node.SelectSingleNode("value/struct/member[name='mt_allow_comments']").LastChild.InnerText;
333
334 if (node.SelectSingleNode("value/struct/member[name='mt_excerpt']") == null)
335 temp.excerpt = "";
336 else
337 temp.excerpt = node.SelectSingleNode("value/struct/member[name='mt_excerpt']").LastChild.InnerText;
338
339 if (node.SelectSingleNode("value/struct/member[name='wp_slug']") == null)
340 temp.slug = "";
341 else
342 temp.slug = node.SelectSingleNode("value/struct/member[name='wp_slug']").LastChild.InnerText;
343
344 if (node.SelectSingleNode("value/struct/member[name='categories']") != null)
345 ...{
346 XmlNode categoryArray = node.SelectSingleNode("value/struct/member[name='categories']").LastChild;
347 foreach (XmlNode catnode in categoryArray.SelectNodes("array/data/value/string"))
348 ...{
349 cats.Add(catnode.InnerText);
350 }
351 }
352 temp.categories = cats;
353
354 if (node.SelectSingleNode("value/struct/member[name='pubDate']") != null)
355 ...{
356 try
357 ...{
358 string tempDate = node.SelectSingleNode("value/struct/member[name='pubDate']").LastChild.InnerText;
359 temp.postDate = DateTime.ParseExact(tempDate, "yyyyMMdd'T'HH':'mm':'ss", CultureInfo.InvariantCulture, DateTimeStyles.AssumeUniversal);
360 }
361 catch
362 ...{
363 // Ignore PubDate Error
364 }
365 }
366
367 // WLW tags implementation using mt_keywords
368 if (node.SelectSingleNode("value/struct/member[name='mt_keywords']") != null)
369 ...{
370 string tagsList = node.SelectSingleNode("value/struct/member[name='mt_keywords']").LastChild.InnerText;
371 foreach (string item in tagsList.Split(','))
372 ...{
373 tags.Add(item.Trim().ToLowerInvariant());
374 }
375 }
376 temp.tags = tags;
377
378 return temp;
379 }
380
381 /**//// <summary>
382 /// Creates a Metaweblog Page object from the XML struct
383 /// </summary>
384 /// <param name="node">XML contains a Metaweblog Page Struct</param>
385 /// <returns>Metaweblog Page Struct Obejct</returns>
386 private MWAPage GetPage(XmlNode node)
387 ...{
388 MWAPage temp = new MWAPage();
389
390 // Require Title and Description
391 try
392 ...{
393 temp.title = node.SelectSingleNode("value/struct/member[name='title']").LastChild.InnerText;
394 temp.description = node.SelectSingleNode("value/struct/member[name='description']").LastChild.InnerText;
395 }
396 catch (Exception ex)
397 ...{
398 throw new MetaWeblogException("06", "Page Struct Element, Title or Description, not Sent. (" + ex.Message + ")");
399 }
400 if (node.SelectSingleNode("value/struct/member[name='link']") == null)
401 temp.link = "";
402 else
403 temp.link = node.SelectSingleNode("value/struct/member[name='link']").LastChild.InnerText;
404
405 if (node.SelectSingleNode("value/struct/member[name='dateCreated']") != null)
406 ...{
407 try
408 ...{
409 string tempDate = node.SelectSingleNode("value/struct/member[name='dateCreated']").LastChild.InnerText;
410 temp.pageDate = DateTime.ParseExact(tempDate, "yyyyMMdd'T'HH':'mm':'ss", CultureInfo.InvariantCulture, DateTimeStyles.AssumeUniversal);
411 }
412 catch
413 ...{
414 // Ignore PubDate Error
415 }
416 }
417
418 if (node.SelectSingleNode("value/struct/member[name='wp_page_parent_id']") != null)
419 temp.pageParentID = node.SelectSingleNode("value/struct/member[name='wp_page_parent_id']").LastChild.InnerText;
420
421 return temp;
422 }
423
424 /**//// <summary>
425 /// Creates a Metaweblog Media object from the XML struct
426 /// </summary>
427 /// <param name="node">XML contains a Metaweblog MediaObject Struct</param>
428 /// <returns>Metaweblog MediaObject Struct Obejct</returns>
429 private MWAMediaObject GetMediaObject(XmlNode node)
430 ...{
431 MWAMediaObject temp = new MWAMediaObject();
432 temp.name = node.SelectSingleNode("value/struct/member[name='name']").LastChild.InnerText;
433 if (node.SelectSingleNode("value/struct/member[name='type']") == null)
434 temp.type = "notsent";
435 else
436 temp.type = node.SelectSingleNode("value/struct/member[name='type']").LastChild.InnerText;
437 temp.bits = System.Convert.FromBase64String(node.SelectSingleNode("value/struct/member[name='bits']").LastChild.InnerText);
438
439 return temp;
440 }
441
442 #endregion
443
444 }
445
}
446
LiveBlog/LiveBlog.Core/API/MetaWeblog/XMLRPCRequest.cs[15K，2009-6-12 11:47:02]，打开代码结构图
打包下载该项目完整源码：LiveBlog v1.0测试版源码