1 files changed, 101 insertions, 0 deletions
diff --git a/bkucommon/src/main/java/at/gv/egiz/bku/binding/XWWWFormUrlInputDecoder.java b/bkucommon/src/main/java/at/gv/egiz/bku/binding/XWWWFormUrlInputDecoder.java
new file mode 100644
index 00000000..f4ebe288
--- /dev/null
+++ b/bkucommon/src/main/java/at/gv/egiz/bku/binding/XWWWFormUrlInputDecoder.java
@@ -0,0 +1,101 @@
+/*
+* Copyright 2008 Federal Chancellery Austria and
+* Graz University of Technology
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package at.gv.egiz.bku.binding;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URLDecoder;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.commons.fileupload.ParameterParser;
+
+import at.gv.egiz.bku.slexceptions.SLRuntimeException;
+import at.gv.egiz.bku.utils.StreamUtil;
+
+/**
+ * Implementation based on Java's URLDecoder class 
+ *
+ */
+// FIXME replace this code by a streaming variant
+public class XWWWFormUrlInputDecoder implements InputDecoder {
+
+  public final static String CHAR_SET = "charset";
+  public final static String NAME_VAL_SEP = "=";
+  public final static String SEP = "\\&";
+
+  private String contentType;
+  private InputStream dataStream;
+  private String charset = "UTF-8";
+
+  protected List<FormParameter> decodeInput(InputStream is) throws IOException {
+    List<FormParameter> result = new LinkedList<FormParameter>();
+    ByteArrayOutputStream bos = new ByteArrayOutputStream();
+    StreamUtil.copyStream(is, bos);
+    String inputString = new String(bos.toByteArray());
+    String[] nameValuePairs = inputString.split(SEP);
+    //inputString = URLDecoder.decode(inputString, charset);
+    for (int i = 0; i < nameValuePairs.length; i++) {
+      String[] fields = nameValuePairs[i].split(NAME_VAL_SEP, 2);
+      if (fields.length != 2) {
+        throw new SLRuntimeException("Invalid form encoding, missing value");
+      }
+      String name = URLDecoder.decode(fields[0], charset); 
+      String value =URLDecoder.decode(fields[1], charset);
+      ByteArrayInputStream bais = new ByteArrayInputStream(value
+          .getBytes(charset));
+      FormParameterImpl fpi = new FormParameterImpl(contentType, name, bais, null);
+      result.add(fpi);
+    }
+    return result;
+  }
+
+  @SuppressWarnings("unchecked")
+  @Override
+  public void setContentType(String contentType) {
+    ParameterParser pp = new ParameterParser();
+    pp.setLowerCaseNames(true);
+    Map<String, String> params = pp.parse(contentType, new char[] { ':', ';' });
+    if (!params.containsKey("application/x-www-form-urlencoded")) {
+      throw new IllegalArgumentException(
+          "not a url encoded content type specification: " + contentType);
+    }
+    String cs = params.get(CHAR_SET);
+    if (cs != null) {
+      charset = cs;
+    }
+    this.contentType = contentType;
+  }
+
+  @Override
+  public Iterator<FormParameter> getFormParameterIterator() {
+    try {
+      return decodeInput(dataStream).iterator();
+    } catch (IOException e) {
+      throw new SLRuntimeException(e);
+    }
+  }
+
+  @Override
+  public void setInputStream(InputStream is) {
+    dataStream = is;
+  }
+}