1 package mircoders.media;
5 import javax.servlet.http.HttpServletRequest;
6 import javax.servlet.ServletContext;
8 import mircoders.storage.DatabaseMediaType;
9 import mircoders.producer.ProducerMedia;
10 import mir.storage.StorageObjectException;
11 import mir.storage.Database;
12 import mir.module.ModuleException;
19 * Takes an HTTPServletRequest from a mutltipart form and finds the files
20 * uploaded via the com.oreilly.servlet.multipart package. Finally the
21 * appropriate media objects are set.
23 * @author $Author: mh $
24 * @version $Revision: 1.1 $
26 * $Log: MediaRequest.java,v $
27 * Revision 1.1 2002/07/21 22:38:39 mh
28 * parses a multipart request's files and makes media Entity's out of them. Basically the old code from insposting() in ServletModuleOpenIndy
33 public class MediaRequest
36 WebdbMultipartRequest _mp;
39 public MediaRequest(WebdbMultipartRequest mPreq, String user) {
45 * parses the files in the uploaded media and creates media Entity's out of
46 * them. Produces them if the "produce" argument is true. The "publish"
47 * parameter determines if it should publish per default in the case where no
48 * is_published parameter (from the upload form) is supplied. (for backwards
51 public EntityList getMedia(boolean produce, boolean publish)
52 throws MirMediaException,
53 MirMediaUserException {
55 HashMap mediaValues = _mp.getParameters();
56 EntityList returnList = new EntityList();
57 MirMedia mediaHandler;
58 Database mediaStorage = null;
59 ProducerMedia mediaProducer = null;
62 for(Iterator it = _mp.requestList.iterator(); it.hasNext();){
64 MpRequest mpReq = (MpRequest)it.next();
65 String fileName = mpReq.getFilename();
67 //get the content-type from what the client browser
68 //sends us. (the "Oreilly method")
69 String contentType = mpReq.getContentType();
71 //theLog.printInfo("FROM BROWSER: "+contentType);
73 //if the client browser sent us unknown (text/plain is default)
74 //or if we got application/octet-stream, it's possible that
75 //the browser is in error, better check against the file extension
76 if (contentType.equals("text/plain") ||
77 contentType.equals("application/octet-stream")) {
79 * Fallback to finding the mime-type through the standard ServletApi
80 * ServletContext getMimeType() method.
82 * This is a way to get the content-type via the .extension,
83 * we could maybe use a magic method as an additional method of
84 * figuring out the content-type, by looking at the header (first
85 * few bytes) of the file. (like the file(1) command). We could
86 * also call the "file" command through Runtime. This is an
87 * option that I almost prefer as it is already implemented and
88 * exists with an up-to-date map on most modern Unix like systems.
89 * I haven't found a really nice implementation of the magic method
92 * The first method we try thought is the "Oreilly method". It
93 * relies on the content-type that the client browser sends and
94 * that sometimes is application-octet stream with
95 * broken/mis-configured browsers.
97 * The map file we use for the extensions is the standard web-app
98 * deployment descriptor file (web.xml). See Mir's web.xml or see
99 * your Servlet containers (most likely Tomcat) documentation.
100 * So if you support a new media type you have to make sure that
101 * it is in this file -mh
104 (ServletContext)MirConfig.getPropAsObject("ServletContext");
105 contentType = ctx.getMimeType(fileName);
106 if (contentType==null)
107 contentType = "text/plain"; // rfc1867 says this is the default
109 //theLog.printInfo("CONTENT TYPE IS: "+contentType);
111 if (contentType.equals("text/plain") ||
112 contentType.equals("application/octet-stream")) {
113 _throwBadContentType(fileName, contentType);
116 String mediaTitle = (String)mediaValues.get("media_title"+i);
118 if ( (mediaTitle == null) || (mediaTitle.length() == 0))
119 throw new MirMediaUserException("Missing field: media title");
121 // TODO: need to add all the extra fields that can be present in the
122 // admin upload form. -mh
123 mediaValues.put("title", mediaTitle);
124 mediaValues.put("date", StringUtil.date2webdbDate(
125 new GregorianCalendar()));
126 mediaValues.put("to_publisher", _user);
127 //mediaValues.put("to_media_folder", "7"); // op media_folder
128 mediaValues.put("is_produced", "0");
130 // icky backwards compatibility code -mh
131 if (publish == true) {
132 mediaValues.put("is_published", "1");
134 if (!mediaValues.containsKey("is_published"))
135 mediaValues.put("is_published", "0");
138 // @todo this should probably be moved to DatabaseMediaType -mh
139 String[] cTypeSplit = StringUtil.split(contentType, "/");
140 String wc = " mime_type LIKE '"+cTypeSplit[0]+"%'";
142 DatabaseMediaType mediaTypeStor = DatabaseMediaType.getInstance();
143 EntityList mediaTypesList = mediaTypeStor.selectByWhereClause(wc);
145 String mediaTypeId = null;
147 //if we didn't find an entry matching the
148 //content-type int the table.
149 if (mediaTypesList.size() == 0) {
150 _throwBadContentType(fileName, contentType);
153 Entity mediaType = null;
154 Entity mediaType2 = null;
156 // find out if we an exact content-type match if so take it.
157 // otherwise try to match majortype/*
158 // @todo this should probably be moved to DatabaseMediaType -mh
159 for(int j=0;j<mediaTypesList.size();j++) {
160 if(contentType.equals(
161 mediaTypesList.elementAt(j).getValue("mime_type")))
162 mediaType = mediaTypesList.elementAt(j);
163 else if ((mediaTypesList.elementAt(j).getValue("mime_type")).equals(
164 cTypeSplit[0]+"/*") )
165 mediaType2= mediaTypesList.elementAt(j);
168 if ( (mediaType == null) && (mediaType2 == null) ) {
169 _throwBadContentType(fileName, contentType);
171 else if( (mediaType == null) && (mediaType2 != null) )
172 mediaType = mediaType2;
174 //get the class names from the media_type table.
175 mediaTypeId = mediaType.getId();
176 // ############### @todo: merge these and the getURL call into one
177 // getURL helper call that just takes the Entity as a parameter
178 // along with media_type
179 mediaHandler = MediaHelper.getHandler(mediaType);
180 mediaStorage = MediaHelper.getStorage(mediaType,
181 "mircoders.storage.Database");
182 mediaValues.put("to_media_type",mediaTypeId);
184 //load the classes via reflection
186 Entity mediaEnt = null;
188 mediaEnt = (Entity)mediaStorage.getEntityClass().newInstance();
189 if (produce == true) {
190 Class prodCls = Class.forName("mircoders.producer.Producer"+
191 mediaType.getValue("tablename"));
192 mediaProducer = (ProducerMedia)prodCls.newInstance();
194 } catch (Exception e) {
195 throw new MirMediaException("Error in MediaRequest: "+e.toString());
198 mediaEnt.setStorage(mediaStorage);
199 mediaEnt.setValues(mediaValues);
200 mediaId = mediaEnt.insert();
202 //save and store the media data/metadata
203 mediaHandler.set(mpReq.getMedia(), mediaEnt,
206 if (produce == true )
207 mediaProducer.handle(null, null, false, false, mediaId);
208 } catch (ModuleException e) {
209 // first try to delete it.. don't catch exception as we've already..
210 try { mediaStorage.delete(mediaId); } catch (Exception e2) {}
211 throw new MirMediaException("error in MediaRequest: "+e.toString());
214 returnList.add(mediaEnt);
215 } catch (StorageObjectException e) {
216 // first try to delete it.. don't catch exception as we've already..
217 try { mediaStorage.delete(mediaId); } catch (Exception e2) {}
218 throw new MirMediaException("error in MediaRequest: "+e.toString());
219 } //end try/catch block
221 } //end for Iterator...
223 } // method getMedia()
225 private void _throwBadContentType (String fileName, String contentType)
226 throws MirMediaUserException {
228 //theLog.printDebugInfo("Wrong file type uploaded!: " + fileName+" "
230 throw new MirMediaUserException("The file you uploaded is of the "
231 +"following mime-type: "+contentType
232 +", we do not support this mime-type. "
233 +"Error One or more files of unrecognized type. Sorry");