* if an I/O exception occurs
*/
private String sendPostData(PostMethod post) throws IOException {
// Buffer to hold the post body, except file content
StringBuffer postedBody = new StringBuffer(1000);
HTTPFileArg files[] = getHTTPFiles();
// Check if we should do a multipart/form-data or an
// application/x-www-form-urlencoded post request
if(getUseMultipartForPost()) {
// If a content encoding is specified, we use that es the
// encoding of any parameter values
String contentEncoding = getContentEncoding();
if(contentEncoding != null && contentEncoding.length() == 0) {
contentEncoding = null;
}
// Check how many parts we need, one for each parameter and file
int noParts = getArguments().getArgumentCount();
noParts += files.length;
// Create the parts
Part[] parts = new Part[noParts];
int partNo = 0;
// Add any parameters
PropertyIterator args = getArguments().iterator();
while (args.hasNext()) {
HTTPArgument arg = (HTTPArgument) args.next().getObjectValue();
String parameterName = arg.getName();
if (parameterName.length()==0){
continue; // Skip parameters with a blank name (allows use of optional variables in parameter lists)
}
parts[partNo++] = new StringPart(arg.getName(), arg.getValue(), contentEncoding);
}
// Add any files
for (int i=0; i < files.length; i++) {
HTTPFileArg file = files[i];
File inputFile = new File(file.getPath());
// We do not know the char set of the file to be uploaded, so we set it to null
ViewableFilePart filePart = new ViewableFilePart(file.getParamName(), inputFile, file.getMimeType(), null);
filePart.setCharSet(null); // We do not know what the char set of the file is
parts[partNo++] = filePart;
}
// Set the multipart for the post
MultipartRequestEntity multiPart = new MultipartRequestEntity(parts, post.getParams());
post.setRequestEntity(multiPart);
// Set the content type
String multiPartContentType = multiPart.getContentType();
post.setRequestHeader(HEADER_CONTENT_TYPE, multiPartContentType);
// If the Multipart is repeatable, we can send it first to
// our own stream, without the actual file content, so we can return it
if(multiPart.isRepeatable()) {
// For all the file multiparts, we must tell it to not include
// the actual file content
for(int i = 0; i < partNo; i++) {
if(parts[i] instanceof ViewableFilePart) {
((ViewableFilePart) parts[i]).setHideFileData(true); // .sendMultipartWithoutFileContent(bos);
}
}
// Write the request to our own stream
ByteArrayOutputStream bos = new ByteArrayOutputStream();
multiPart.writeRequest(bos);
bos.flush();
// We get the posted bytes as UTF-8, since java is using UTF-8
postedBody.append(new String(bos.toByteArray() , "UTF-8")); // $NON-NLS-1$
bos.close();
// For all the file multiparts, we must revert the hiding of
// the actual file content
for(int i = 0; i < partNo; i++) {
if(parts[i] instanceof ViewableFilePart) {
((ViewableFilePart) parts[i]).setHideFileData(false);
}
}
}
else {
postedBody.append("<Multipart was not repeatable, cannot view what was sent>"); // $NON-NLS-1$
}
}
else {
// Check if the header manager had a content type header
// This allows the user to specify his own content-type for a POST request
Header contentTypeHeader = post.getRequestHeader(HEADER_CONTENT_TYPE);
boolean hasContentTypeHeader = contentTypeHeader != null && contentTypeHeader.getValue() != null && contentTypeHeader.getValue().length() > 0;
// If there are no arguments, we can send a file as the body of the request
// TODO: needs a multiple file upload scenerio
if(!hasArguments() && getSendFileAsPostBody()) {
// If getSendFileAsPostBody returned true, it's sure that file is not null
HTTPFileArg file = files[0];
if(!hasContentTypeHeader) {
// Allow the mimetype of the file to control the content type
if(file.getMimeType() != null && file.getMimeType().length() > 0) {
post.setRequestHeader(HEADER_CONTENT_TYPE, file.getMimeType());
}
else {
post.setRequestHeader(HEADER_CONTENT_TYPE, APPLICATION_X_WWW_FORM_URLENCODED);
}
}
FileRequestEntity fileRequestEntity = new FileRequestEntity(new File(file.getPath()),null);
post.setRequestEntity(fileRequestEntity);
// We just add placeholder text for file content
postedBody.append("<actual file content, not shown here>");
}
else {
// In a post request which is not multipart, we only support
// parameters, no file upload is allowed
// If a content encoding is specified, we set it as http parameter, so that
// the post body will be encoded in the specified content encoding
final String contentEncoding = getContentEncoding();
boolean haveContentEncoding = false;
if(contentEncoding != null && contentEncoding.trim().length() > 0) {
post.getParams().setContentCharset(contentEncoding);
haveContentEncoding = true;
}
// If none of the arguments have a name specified, we
// just send all the values as the post body
if(getSendParameterValuesAsPostBody()) {
// Allow the mimetype of the file to control the content type
// This is not obvious in GUI if you are not uploading any files,
// but just sending the content of nameless parameters
// TODO: needs a multiple file upload scenerio
if(!hasContentTypeHeader) {
HTTPFileArg file = files.length > 0? files[0] : null;
if(file != null && file.getMimeType() != null && file.getMimeType().length() > 0) {
post.setRequestHeader(HEADER_CONTENT_TYPE, file.getMimeType());
}
else {
// TODO - is this the correct default?
post.setRequestHeader(HEADER_CONTENT_TYPE, APPLICATION_X_WWW_FORM_URLENCODED);
}