/**
* method to return an image at a specified url
*
* @param url the url in question
* @param imageId the unique identification number of the image
* @return the image in question
* @throws MalformedURLException if the url is not properly formed
* @throws IOException if this operation fails for whateve reason
*/
public static WebImage getImageAtUrl(String url, Integer imageId)
throws MalformedURLException, IOException {
URLFetchService fetchService = URLFetchServiceFactory.getURLFetchService();
WebImage image = new WebImage();
// Fetch the image at the location given by the url query string parameter
HTTPResponse fetchResponse = fetchService.fetch(new URL(url));
for (HTTPHeader header : fetchResponse.getHeaders()) {
// For each request header, check whether the name equals
// "Content-Type"; if so, store the value of this header
// in a member variable
if (header.getName().equalsIgnoreCase("content-type")) {
image.setImageContentType(header.getValue());
break;
}
}
Blob imageData = new Blob(fetchResponse.getContent());
image.setImageId(imageId);
image.setImageData(imageData);
image.setImageUrl(url);
return (image.getImageBytes() == null ? null : image);
}
public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
int index;
DatastoreService ds;
MemcacheService ms;
BlobstoreService bs;
URLFetchService us;
FileService fs;
Map<String, List<BlobKey>> blobMap;
BlobKey blobKey;
BlobInfoFactory blobInfoFactory;
BlobInfo blobInfo;
int postCount;
int postIndex;
String postType;
String postText;
String postDelpw;
String postShowgallery;
DataObj dataObj;
String filelink;
String picUrl;
HTTPResponse picRes;
List<HTTPHeader> headerList;
String picMime;
String[] fileNamePart;
AppEngineFile picFile;
FileWriteChannel writeChannel;
PostObj postObj;
List<PostObj> postObjList;
String linkID;
resp.setCharacterEncoding("UTF-8");
resp.setContentType("text/plain");
try {
ds = DatastoreServiceFactory.getDatastoreService();
ms = MemcacheServiceFactory.getMemcacheService();
bs = BlobstoreServiceFactory.getBlobstoreService();
us = URLFetchServiceFactory.getURLFetchService();
fs = FileServiceFactory.getFileService();
blobInfoFactory = new BlobInfoFactory(ds);
blobMap = bs.getUploads(req);
postCount = Integer.valueOf(req.getParameter("input_post_count"));
postObjList = new ArrayList<PostObj>();
for (postIndex = 0; postIndex < postCount; postIndex++) {
try {
postType = req.getParameter("input_post_type_" + postIndex);
if (postType == null) {
continue;
}
postText = req.getParameter("input_post_text_" + postIndex);
postDelpw = req.getParameter("input_post_delpw_" + postIndex);
postShowgallery = req.getParameter("input_post_showgallery_" + postIndex);
if (postShowgallery == null) {
postShowgallery = "";
}
if (postType.equals("file") == true) {
blobKey = blobMap.get("input_post_file_" + postIndex).get(0);
if (blobKey == null) {
throw new Exception();
}
dataObj = new DataObj();
dataObj.fileid = createUID();
dataObj.posttime = new Date().getTime();
dataObj.delpw = postDelpw;
dataObj.blobkey = blobKey;
dataObj.putDB(ds);
blobInfo = blobInfoFactory.loadBlobInfo(dataObj.blobkey);
filelink =
"http://"
+ req.getServerName()
+ "/down/"
+ dataObj.fileid
+ "/"
+ blobInfo.getFilename();
postObj =
new PostObj(
dataObj.fileid,
filelink,
blobInfo.getSize(),
dataObj.posttime,
dataObj.delpw,
postShowgallery);
postObjList.add(postObj);
} else if (postType.equals("url") == true) {
picUrl = postText;
picRes = us.fetch(new URL(picUrl));
headerList = picRes.getHeaders();
picMime = "application/octet-stream";
for (index = 0; index < headerList.size(); index++) {
if (headerList.get(index).getName().compareToIgnoreCase("Content-Type") == 0) {
picMime = headerList.get(index).getValue();
break;
}
}
fileNamePart = picUrl.split("/");
picFile = fs.createNewBlobFile(picMime, fileNamePart[fileNamePart.length - 1]);
writeChannel = fs.openWriteChannel(picFile, true);
writeChannel.write(ByteBuffer.wrap(picRes.getContent()));
writeChannel.closeFinally();
dataObj = new DataObj();
dataObj.fileid = createUID();
dataObj.posttime = new Date().getTime();
dataObj.delpw = postDelpw;
dataObj.blobkey = fs.getBlobKey(picFile);
dataObj.putDB(ds);
blobInfo = blobInfoFactory.loadBlobInfo(dataObj.blobkey);
filelink =
"http://"
+ req.getServerName()
+ "/down/"
+ dataObj.fileid
+ "/"
+ blobInfo.getFilename();
postObj =
new PostObj(
dataObj.fileid,
filelink,
blobInfo.getSize(),
dataObj.posttime,
dataObj.delpw,
postShowgallery);
postObjList.add(postObj);
}
} catch (Exception e) {
}
}
linkID = postFile(us, postObjList);
if (req.getParameter("specflag") != null) {
resp.getWriter().print("http://tnfshmoe.appspot.com/link.jsp?linkid=" + linkID);
} else {
resp.sendRedirect("http://tnfshmoe.appspot.com/link.jsp?linkid=" + linkID);
}
} catch (Exception e) {
}
}