1 files changed, 89 insertions, 0 deletions
diff --git a/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/protocols/oauth20/OAuth20Util.java b/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/protocols/oauth20/OAuth20Util.java
new file mode 100644
index 000000000..11b798d00
--- /dev/null
+++ b/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/protocols/oauth20/OAuth20Util.java
@@ -0,0 +1,89 @@
+package at.gv.egovernment.moa.id.protocols.oauth20;
+
+import java.io.UnsupportedEncodingException;
+import java.util.Map;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.apache.commons.lang.StringUtils;
+
+import com.google.gson.JsonObject;
+
+public final class OAuth20Util {
+	
+	public static final String REGEX_HTTPS = "^(https?)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]";
+	public static final String REGEX_FILE = "^(file):/.[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]";
+	
+	private OAuth20Util() {
+		throw new InstantiationError();
+	}
+	
+	/**
+	 * Simple helper function to add parameter to a url
+	 * 
+	 * @param url
+	 * @param name
+	 * @param value
+	 * @throws UnsupportedEncodingException
+	 */
+	public static void addParameterToURL(final StringBuilder url, final String name, final String value)
+			throws UnsupportedEncodingException {
+		if (url.indexOf("?") < 0) {
+			url.append("?");
+		} else {
+			url.append("&");
+		}
+		// URLEncoder.encode(value, "UTF-8")
+		url.append(name).append("=").append(value);
+	}
+	
+	public static boolean isUrl(final String url) {
+		Pattern urlPattern;
+		if (url.startsWith("file")) {
+			urlPattern = Pattern.compile(REGEX_FILE, Pattern.CASE_INSENSITIVE);
+		} else {
+			urlPattern = Pattern.compile(REGEX_HTTPS, Pattern.CASE_INSENSITIVE);
+		}
+		
+		Matcher matcher = urlPattern.matcher(url);
+		return matcher.find();
+	}
+	
+	public static boolean isValidStateValue(String state) {
+		Pattern urlPattern = Pattern.compile("javascript|<|>|&|;", Pattern.CASE_INSENSITIVE);
+		Matcher matcher = urlPattern.matcher(state);
+		return !matcher.find();
+	}
+	
+	public static void addProperytiesToJsonObject(JsonObject jsonObject, Map<String, Object> params) {
+		for (Map.Entry<String, Object> param : params.entrySet()) {
+			
+			if (!StringUtils.isEmpty(param.getKey()) && param.getValue() != null) {
+				
+				// check for integer
+				try {
+					int i = Integer.parseInt(String.valueOf(param.getValue()));
+					jsonObject.addProperty(param.getKey(), i);
+					continue;
+				}
+				catch (NumberFormatException e) {
+				}
+				
+				// check for long
+				try {
+					long l = Long.parseLong(String.valueOf(param.getValue()));
+					jsonObject.addProperty(param.getKey(), l);
+					continue;
+				}
+				catch (NumberFormatException e) {
+				}
+				
+				// string
+				if (param.getValue() instanceof String) {
+					jsonObject.addProperty(param.getKey(), String.valueOf(param.getValue()));
+				}
+			}
+		}
+	}
+	
+}