1 files changed, 78 insertions, 0 deletions
diff --git a/bkucommon/src/main/java/at/gv/egiz/bku/binding/HttpUtil.java b/bkucommon/src/main/java/at/gv/egiz/bku/binding/HttpUtil.java
new file mode 100644
index 00000000..b11a4d85
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+++ b/bkucommon/src/main/java/at/gv/egiz/bku/binding/HttpUtil.java
@@ -0,0 +1,78 @@
+/*
+* 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.util.Map;
+
+import org.apache.commons.fileupload.ParameterParser;
+
+/**
+ * Placeholder for some HTTP related constants and helper method to extract the charset for a request. 
+ *
+ */
+public class HttpUtil {
+
+  public final static String CHAR_SET = "charset";
+  public final static String DEFAULT_CHARSET = "ISO-8859-1";
+  public final static String HTTP_HEADER_CONTENT_TYPE = "Content-Type";
+  public static final String HTTP_HEADER_USER_AGENT = "User-Agent";
+  public final static String HTTP_HEADER_REFERER = "Referer";
+  public final static String CONTENT_TRANSFER_ENCODING = "Content-Transfer-Encoding";
+  public final static String MULTIPART_FOTMDATA = "multipart/form-data";
+  public final static String MULTIPART_FOTMDATA_BOUNDARY = "boundary";
+  public final static String TXT_XML = "text/xml";
+  public final static String TXT_PLAIN = "text/plain";
+  public final static String TXT_HTML = "text/html";
+  public final static String APPLICATION_URL_ENCODED = "application/x-www-form-urlencoded";
+  public final static String HTTP_HEADER_LOCATION = "Location";
+
+  public final static char[] SEPERATOR = { ';' };
+
+  /**
+   * Extracts charset from a content type header.
+   * 
+   * @param contentType
+   * @param replaceNullWithDefault
+   *          if true the method return the default charset if not set
+   * @return charset String or null if not present
+   */
+  @SuppressWarnings("unchecked")
+  public static String getCharset(String contentType,
+      boolean replaceNullWithDefault) {
+    ParameterParser pf = new ParameterParser();
+    pf.setLowerCaseNames(true);
+    Map map = pf.parse(contentType, SEPERATOR);
+    String retVal = (String) map.get(CHAR_SET);
+    if ((retVal == null) && (replaceNullWithDefault)) {
+      if (map.containsKey(APPLICATION_URL_ENCODED)) {
+        // default charset for url encoded data
+        return "UTF-8";
+      }
+      retVal = getDefaultCharset();
+    }
+    return retVal;
+  }
+
+  /**
+   * 
+   * Not to be used for url encoded requests.
+   */
+  public static String getDefaultCharset() {
+    return DEFAULT_CHARSET;
+  }
+
+}