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| package org.apache.tapestry.valid; |
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| |
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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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| |
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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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| |
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| |
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| |
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| |
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| public class UrlValidator extends BaseValidator |
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| { |
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| private int _minimumLength; |
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| |
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| private String _minimumLengthMessage; |
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| |
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| private String _invalidUrlFormatMessage; |
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| |
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| private String _disallowedProtocolMessage; |
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| |
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| private Collection _allowedProtocols; |
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| |
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| private String _scriptPath = "/org/apache/tapestry/valid/UrlValidator.script"; |
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| |
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| public UrlValidator()
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| { |
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| } |
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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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| |
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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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| |
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| return value.toString();
|
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| } |
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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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| return null;
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| |
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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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| |
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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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| |
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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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| |
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| return input;
|
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| } |
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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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| |
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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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| |
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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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| |
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| Map symbols = new HashMap();
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| |
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| if (isRequired())
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| symbols.put("requiredMessage", buildRequiredMessage(field));
|
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| |
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| if (_minimumLength > 0)
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| symbols.put("minimumLengthMessage",
|
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| buildMinimumLengthMessage(field)); |
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| |
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| symbols.put("urlFormatMessage", buildInvalidUrlFormatMessage(field));
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| |
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| symbols.put("urlDisallowedProtocolMessage",
|
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| buildDisallowedProtocolMessage(field)); |
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| |
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| symbols.put("urlRegexpProtocols", buildUrlRegexpProtocols());
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| |
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| processValidatorScript(_scriptPath, cycle, field, symbols);
|
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| } |
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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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| |
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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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| |
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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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| |
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4
| 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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| |
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2
| 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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| 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
| String actualProtocol = oUrl.getProtocol();
|
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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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| 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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| bIsAllowed = true;
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| } |
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| return bIsAllowed;
|
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| } |
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| |
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| public String getInvalidUrlFormatMessage()
|
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| { |
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| return _invalidUrlFormatMessage;
|
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| } |
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| |
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| public String getMinimumLengthMessage()
|
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| { |
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| return _minimumLengthMessage;
|
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| } |
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| |
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| public void setInvalidUrlFormatMessage(String string)
|
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| { |
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| _invalidUrlFormatMessage = string;
|
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| } |
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| |
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| public String getDisallowedProtocolMessage()
|
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| { |
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| return _disallowedProtocolMessage;
|
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| } |
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| |
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| public void setDisallowedProtocolMessage(String string)
|
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| { |
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| _disallowedProtocolMessage = string;
|
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| } |
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| |
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1
| public void setMinimumLengthMessage(String string)
|
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| { |
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| _minimumLengthMessage = string;
|
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| } |
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| |
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2
| protected String buildMinimumLengthMessage(IFormComponent field)
|
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| { |
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| String pattern = getPattern(_minimumLengthMessage, "field-too-short",
|
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| field.getPage().getLocale()); |
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| |
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| return formatString(pattern, Integer.toString(_minimumLength), field.getDisplayName());
|
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| } |
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| |
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| protected String buildInvalidUrlFormatMessage(IFormComponent field)
|
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| { |
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| String pattern = getPattern(_invalidUrlFormatMessage, "invalid-url-format",
|
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| field.getPage().getLocale()); |
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| |
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| return formatString(pattern, field.getDisplayName());
|
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| } |
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| |
254 |
1
| protected String buildDisallowedProtocolMessage(IFormComponent field)
|
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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 pattern = getPattern(_disallowedProtocolMessage, "disallowed-protocol",
|
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| field.getPage().getLocale()); |
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| |
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| String allowedProtocols = "";
|
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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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2
| if (!allowedProtocols.equals("")) {
|
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| if (iter.hasNext())
|
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| { |
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| allowedProtocols += ", ";
|
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| } |
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| else |
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| { |
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| allowedProtocols += " or ";
|
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| } |
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| } |
278 |
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| allowedProtocols += protocol;
|
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| } |
280 |
| |
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1
| return formatString(pattern, allowedProtocols);
|
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| } |
283 |
| |
284 |
5
| protected String getPattern(String override, String key, Locale locale)
|
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| { |
286 |
5
| if (override != null)
|
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| return override;
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| |
289 |
3
| ResourceBundle strings = ResourceBundle.getBundle(
|
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| "org.apache.tapestry.valid.ValidationStrings", |
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| locale); |
292 |
3
| return strings.getString(key);
|
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| } |
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| |
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| |
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| |
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| |
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| |
299 |
1
| public void setAllowedProtocols(String protocols)
|
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| { |
301 |
1
| StringSplitter spliter = new StringSplitter(',');
|
302 |
| |
303 |
1
| String[] aProtocols = spliter.splitToArray(protocols);
|
304 |
1
| _allowedProtocols = new Vector();
|
305 |
1
| for (int i = 0; i < aProtocols.length; i++)
|
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| { |
307 |
2
| _allowedProtocols.add(aProtocols[i]);
|
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| } |
309 |
| } |
310 |
| |
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| } |