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package org.apache.tapestry.valid;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.util.Collection;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.Locale;
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import java.util.Map;
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import java.util.ResourceBundle;
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import java.util.Vector;
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import org.apache.hivemind.util.PropertyUtils;
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import org.apache.tapestry.IMarkupWriter;
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import org.apache.tapestry.IRequestCycle;
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import org.apache.tapestry.form.IFormComponent;
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import org.apache.tapestry.util.StringSplitter;
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public class UrlValidator extends BaseValidator
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{
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private int _minimumLength;
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private String _minimumLengthMessage;
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private String _invalidUrlFormatMessage;
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private String _disallowedProtocolMessage;
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private Collection _allowedProtocols;
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private String _scriptPath = "/org/apache/tapestry/valid/UrlValidator.script";
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6
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public UrlValidator()
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{
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}
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0
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public UrlValidator(String initializer)
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{
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super(initializer);
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}
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public String toString(IFormComponent field, Object value)
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{
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if (value == null)
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return null;
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return value.toString();
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}
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public Object toObject(IFormComponent field, String input) throws ValidatorException
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{
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if (checkRequired(field, input))
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0
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return null;
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if (_minimumLength > 0 && input.length() < _minimumLength)
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throw new ValidatorException(buildMinimumLengthMessage(field),
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ValidationConstraint.MINIMUM_WIDTH);
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if (!isValidUrl(input))
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throw new ValidatorException(buildInvalidUrlFormatMessage(field),
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ValidationConstraint.URL_FORMAT);
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if (!isAllowedProtocol(input))
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{
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throw new ValidatorException(buildDisallowedProtocolMessage(field),
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ValidationConstraint.DISALLOWED_PROTOCOL);
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}
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return input;
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}
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public int getMinimumLength()
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{
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return _minimumLength;
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}
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public void setMinimumLength(int minimumLength)
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{
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_minimumLength = minimumLength;
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}
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public void renderValidatorContribution(IFormComponent field, IMarkupWriter writer,
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IRequestCycle cycle)
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{
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if (!isClientScriptingEnabled())
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return;
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Map symbols = new HashMap();
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if (isRequired())
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symbols.put("requiredMessage", buildRequiredMessage(field));
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if (_minimumLength > 0)
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symbols.put("minimumLengthMessage",
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buildMinimumLengthMessage(field));
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symbols.put("urlFormatMessage", buildInvalidUrlFormatMessage(field));
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symbols.put("urlDisallowedProtocolMessage",
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buildDisallowedProtocolMessage(field));
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symbols.put("urlRegexpProtocols", buildUrlRegexpProtocols());
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processValidatorScript(_scriptPath, cycle, field, symbols);
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}
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private String buildUrlRegexpProtocols()
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{
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if (_allowedProtocols == null)
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{
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return null;
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}
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String regexp = "/(";
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Iterator iter = _allowedProtocols.iterator();
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while (iter.hasNext())
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{
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String protocol = (String) iter.next();
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regexp += protocol;
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if (iter.hasNext())
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{
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regexp += "|";
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}
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}
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regexp += "):///";
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return regexp;
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}
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public String getScriptPath()
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{
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return _scriptPath;
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}
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public void setScriptPath(String scriptPath)
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{
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_scriptPath = scriptPath;
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}
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protected boolean isValidUrl(String url)
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{
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boolean bIsValid;
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try
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{
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new URL(url);
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bIsValid = true;
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}
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catch (MalformedURLException mue)
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{
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bIsValid = false;
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}
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return bIsValid;
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}
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protected boolean isAllowedProtocol(String url)
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{
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boolean bIsAllowed = false;
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if (_allowedProtocols != null)
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{
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URL oUrl;
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1
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try
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{
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oUrl = new URL(url);
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}
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catch (MalformedURLException e)
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{
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return false;
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}
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1
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String actualProtocol = oUrl.getProtocol();
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1
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Iterator iter = _allowedProtocols.iterator();
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1
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while (iter.hasNext())
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{
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2
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String protocol = (String) iter.next();
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if (protocol.equals(actualProtocol))
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{
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bIsAllowed = true;
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break;
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}
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}
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}
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else
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{
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1
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bIsAllowed = true;
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}
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return bIsAllowed;
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}
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209
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0
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public String getInvalidUrlFormatMessage()
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{
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0
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return _invalidUrlFormatMessage;
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}
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214
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0
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public String getMinimumLengthMessage()
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{
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0
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return _minimumLengthMessage;
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}
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219
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1
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public void setInvalidUrlFormatMessage(String string)
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{
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1
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_invalidUrlFormatMessage = string;
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}
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public String getDisallowedProtocolMessage()
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{
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0
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return _disallowedProtocolMessage;
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}
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229
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0
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public void setDisallowedProtocolMessage(String string)
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{
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0
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_disallowedProtocolMessage = string;
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}
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233
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234
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1
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public void setMinimumLengthMessage(String string)
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{
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236
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1
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_minimumLengthMessage = string;
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237
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}
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238
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239
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2
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protected String buildMinimumLengthMessage(IFormComponent field)
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{
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241
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2
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String pattern = getPattern(_minimumLengthMessage, "field-too-short",
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242
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field.getPage().getLocale());
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243
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244
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2
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return formatString(pattern, Integer.toString(_minimumLength), field.getDisplayName());
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245
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}
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246
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247
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2
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protected String buildInvalidUrlFormatMessage(IFormComponent field)
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248
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{
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249
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2
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String pattern = getPattern(_invalidUrlFormatMessage, "invalid-url-format",
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250
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field.getPage().getLocale());
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251
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252
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2
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return formatString(pattern, field.getDisplayName());
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253
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}
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254
|
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|
255
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1
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protected String buildDisallowedProtocolMessage(IFormComponent field)
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256
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{
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257
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1
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if (_allowedProtocols == null)
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258
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{
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259
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0
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return null;
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260
|
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}
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261
|
1
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String pattern = getPattern(_disallowedProtocolMessage, "disallowed-protocol",
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262
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field.getPage().getLocale());
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263
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|
264
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1
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String allowedProtocols = "";
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265
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1
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Iterator iter = _allowedProtocols.iterator();
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266
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1
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while (iter.hasNext())
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267
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{
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268
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2
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String protocol = (String) iter.next();
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269
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2
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if (!allowedProtocols.equals("")) {
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270
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1
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if (iter.hasNext())
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271
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{
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272
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0
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allowedProtocols += ", ";
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273
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}
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274
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else
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275
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{
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276
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1
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allowedProtocols += " or ";
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277
|
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}
|
278
|
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}
|
279
|
2
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allowedProtocols += protocol;
|
280
|
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}
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281
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|
282
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1
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return formatString(pattern, allowedProtocols);
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283
|
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}
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284
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|
285
|
5
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protected String getPattern(String override, String key, Locale locale)
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286
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{
|
287
|
5
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if (override != null)
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288
|
2
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return override;
|
289
|
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|
290
|
3
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ResourceBundle strings = ResourceBundle.getBundle(
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291
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"org.apache.tapestry.valid.ValidationStrings",
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292
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locale);
|
293
|
3
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return strings.getString(key);
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294
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}
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295
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|
296
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|
297
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|
298
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|
299
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|
300
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1
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public void setAllowedProtocols(String protocols)
|
301
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{
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302
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1
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StringSplitter spliter = new StringSplitter(',');
|
303
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|
304
|
1
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String[] aProtocols = spliter.splitToArray(protocols);
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305
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1
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_allowedProtocols = new Vector();
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306
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1
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for (int i = 0; i < aProtocols.length; i++)
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307
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{
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308
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2
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_allowedProtocols.add(aProtocols[i]);
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309
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}
|
310
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}
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311
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312
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}
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