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| package photospace.web.spring; |
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| |
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| import java.io.*; |
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| import java.util.*; |
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| import java.util.regex.*; |
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| import org.apache.commons.lang.*; |
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| import org.apache.commons.logging.*; |
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| import org.springframework.validation.*; |
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| import org.springframework.web.multipart.*; |
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| import com.drew.imaging.jpeg.*; |
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| import photospace.vfs.*; |
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| |
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| public class UploadValidator |
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| implements Validator { |
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| |
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| private static final Log log = LogFactory.getLog(UploadValidator.class); |
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| |
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| private List contentTypes = Arrays.asList(new String[] { "image/jpeg", "image/pjpeg" }); |
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| private FileSystem filesystem; |
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| |
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0
| public boolean supports(Class clazz)
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| { |
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0
| return UploadCommand.class.isAssignableFrom(clazz);
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| } |
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| |
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0
| public void validate(Object obj, Errors errors)
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| { |
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| UploadCommand upload = (UploadCommand) obj;
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| |
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0
| File base = null;
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0
| try
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| { |
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| base = filesystem.getDirectory(upload.getPath());
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| } |
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| catch (Exception e) |
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| { |
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| errors.rejectValue("path", "error.invalid.path",
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| new Object[] { upload.getPath() }, e.getMessage()); |
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| } |
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| |
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0
| if (!StringUtils.isEmpty(upload.getNewFolderName()))
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| { |
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0
| if (Pattern.matches("\\W", upload.getNewFolderName()))
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| { |
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| errors.rejectValue("newFolderName", "error.invalid",
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| new Object[] { upload.getNewFolderName(), "folder name" }, |
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| "Invalid folder name"); |
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| } |
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0
| else if (base != null && new File(base, upload.getNewFolderName()).exists())
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| { |
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| errors.rejectValue("newFolderName", "error.upload.exists",
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| new Object[] { upload.getNewFolderName() }, |
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| upload.getNewFolderName() + " already exists"); |
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| } |
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| } |
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| |
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0
| boolean hasUpload = false;
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0
| for (int i = 0; i < upload.getFiles().length; i++)
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| { |
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| MultipartFile file = upload.getFiles()[i];
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| if (file == null) continue;
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| if (file.getSize() == 0) continue;
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| hasUpload = true;
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| |
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| |
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| if (!contentTypes.contains(file.getContentType()))
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| { |
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| errors.rejectValue("file" + i, "error.upload.contentType",
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| new Object[] {file.getContentType()}, file.getContentType() + " must be one of " + contentTypes); |
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0
| continue;
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| } |
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| |
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0
| try
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| { |
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| JpegMetadataReader.readMetadata(file.getInputStream());
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| } |
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| catch (Exception e) |
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| { |
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| log.error("Exception parsing uploaded jpeg", e);
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| errors.rejectValue("file" + i, "error.upload.file",
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| new Object[] {file.getOriginalFilename(), e.getMessage()}, "Bad file " + file.getOriginalFilename() + ": " + e.getMessage()); |
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| } |
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| } |
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| |
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0
| if (!hasUpload)
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| { |
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| errors.reject("error.upload.required", "At least one file is required");
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| } |
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| } |
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| |
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| public void setFilesystem(FileSystem filesystem)
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| { |
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| this.filesystem = filesystem;
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| } |
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| } |
