cmscaptchasettings.java

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    /**
     * Returns the image height.<p>
     * 
     * @return the image height
     */
    public int getImageHeight() {

        return m_imageHeight;
    }

    /**
     * Returns the image width.<p>
     * 
     * @return the image width
     */
    public int getImageWidth() {

        return m_imageWidth;
    }

    /**
     * Returns the max. font size.<p>
     * 
     * @return the max. font size
     */
    public int getMaxFontSize() {

        return m_maxFontSize;
    }

    /**
     * Returns the max. phrase length.<p>
     * 
     * @return the max. phrase length
     */
    public int getMaxPhraseLength() {

        return m_maxPhraseLength;
    }

    /**
     * Returns the min. font size.<p>
     * 
     * @return the min. font size
     */
    public int getMinFontSize() {

        return m_minFontSize;
    }

    /**
     * Returns the min. phrase length.<p>
     * 
     * @return the min. phrase length
     */
    public int getMinPhraseLength() {

        return m_minPhraseLength;
    }

    /**
     * Configures the instance with values overridden from the the request parameters.<p>
     * 
     * @param jsp a Cms JSP page
     * 
     * @see #C_PARAM_BACKGROUND_COLOR
     * @see #C_PARAM_FILTER_AMPLITUDE
     */
    public void init(CmsJspActionElement jsp) {

        List mulipartFileItems = CmsRequestUtil.readMultipartFileItems(jsp.getRequest());
        m_parameterMap = new HashMap();
        if (mulipartFileItems != null) {
            m_parameterMap = CmsRequestUtil.readParameterMapFromMultiPart(
                jsp.getRequestContext().getEncoding(),
                mulipartFileItems);
        } else {
            m_parameterMap = jsp.getRequest().getParameterMap();
        }

        // image width
        String stringValue = getParameter(C_PARAM_IMAGE_WIDTH);
        if (CmsStringUtil.isNotEmpty(stringValue)) {
            m_imageWidth = Integer.parseInt(stringValue);
        }

        // image height
        stringValue = getParameter(C_PARAM_IMAGE_HEIGHT);
        if (CmsStringUtil.isNotEmpty(stringValue)) {
            m_imageHeight = Integer.parseInt(stringValue);
        }

        // min. phrase length
        stringValue = getParameter(C_PARAM_MIN_PHRASE_LENGTH);
        if (CmsStringUtil.isNotEmpty(stringValue)) {
            m_minPhraseLength = Integer.parseInt(stringValue);
        }

        // max. phrase length
        stringValue = getParameter(C_PARAM_MAX_PHRASE_LENGTH);
        if (CmsStringUtil.isNotEmpty(stringValue)) {
            m_maxPhraseLength = Integer.parseInt(stringValue);
        }

        // min. font size
        stringValue = getParameter(C_PARAM_MIN_FONT_SIZE);
        if (CmsStringUtil.isNotEmpty(stringValue)) {
            m_minFontSize = Integer.parseInt(stringValue);
        }

        // max. font size
        stringValue = getParameter(C_PARAM_MAX_FONT_SIZE);
        if (CmsStringUtil.isNotEmpty(stringValue)) {
            m_maxFontSize = Integer.parseInt(stringValue);
        }

        // font color
        stringValue = getParameter(C_PARAM_FONT_COLOR);
        if (CmsStringUtil.isNotEmpty(stringValue)) {
            stringValue = CmsEncoder.unescape(stringValue, jsp.getRequestContext().getEncoding());
            setFontColor(stringValue);
        }

        // background color
        stringValue = getParameter(C_PARAM_BACKGROUND_COLOR);
        if (CmsStringUtil.isNotEmpty(stringValue)) {
            stringValue = CmsEncoder.unescape(stringValue, jsp.getRequestContext().getEncoding());
        }
        setBackgroundColor(stringValue);

        // holes per glyph
        stringValue = getParameter(C_PARAM_HOLES_PER_GLYPH);
        if (CmsStringUtil.isNotEmpty(stringValue)) {
            setHolesPerGlyph(Integer.parseInt(stringValue));
        }

        // filter amplitude
        stringValue = getParameter(C_PARAM_FILTER_AMPLITUDE);
        if (CmsStringUtil.isNotEmpty(stringValue)) {
            setFilterAmplitude(Integer.parseInt(stringValue));
        }

        // filter wave length
        stringValue = getParameter(C_PARAM_FILTER_WAVE_LENGTH);
        if (CmsStringUtil.isNotEmpty(stringValue)) {
            setFilterWaveLength(Integer.parseInt(stringValue));
        }
        // flag for generation of background image (vs. background color)
        stringValue = getParameter(C_PARAM_USE_BACKGROUND_IMAGE);
        if (CmsStringUtil.isNotEmpty(stringValue)) {
            setUseBackgroundImage(Boolean.valueOf(stringValue).booleanValue());
        }

        // characters to use for word generation:
        stringValue = getParameter(C_PARAM_CHARACTERS);
        if (CmsStringUtil.isNotEmpty(stringValue)) {
            setCharacterPool(stringValue);
        }
        // characters to use for word generation:
        stringValue = getParameter(C_PARAM_CHARACTERS);
        if (CmsStringUtil.isNotEmpty(stringValue)) {
            setCharacterPool(stringValue);
        }

        // just for logging comfort (find misconfigured presets):
        stringValue = getParameter(C_PARAM_PRESET);
        if (CmsStringUtil.isNotEmpty(stringValue)) {
            m_presetPath = stringValue;
        }
    }

    /**
     * Configures the instance with overridden values from the given XML content.<p>
     * 
     * <h3>Xmlcontent configuration notes</h3>
     * <ol>
     *   <li>
     *     <ul>
     *       <li> If the xmlcontent contains no node for BackgroundColor ({@link CmsCaptchaSettings#NODE_CAPTCHAPRESET_BACKGROUNDCOLOR}),
     *          a background image will be used. </li>
     *       <li> If the xmlcontent node contains an empty node (trimmable to the empty String), the
     *          default background colour {@link Color#WHITE}) will be used as background. </li>
     *       <li> Else the chosen background color will be used. </li>
     *     </ul>
     *   </li>
     * </ol>
     * <p>
     * 
     * @param cms the current user's Cms object
     * @param content the XML content of the form
     * @param locale the current locale
     */
    public void init(CmsObject cms, CmsXmlContent content, Locale locale) {

        try {
            String captchaSettingsPath = content.getStringValue(
                cms,
                new StringBuffer(CmsForm.NODE_CAPTCHA).append("/").append(CmsForm.NODE_CAPTCHA_PRESET).toString(),
                locale);
            if (CmsStringUtil.isNotEmpty(captchaSettingsPath)) {
                m_presetPath = captchaSettingsPath;
                CmsFile captchaSettingsFile = cms.readFile(captchaSettingsPath);
                CmsXmlContent preset = CmsXmlContentFactory.unmarshal(cms, captchaSettingsFile);

                Locale captchaSettingsLocale = Locale.ENGLISH;

                // image width
                String stringValue = preset.getStringValue(
                    cms,
                    CmsCaptchaSettings.NODE_CAPTCHAPRESET_IMAGEWIDTH,
                    captchaSettingsLocale);
                if (CmsStringUtil.isNotEmpty(stringValue)) {
                    m_imageWidth = Integer.parseInt(stringValue);
                }

                // image height
                stringValue = preset.getStringValue(
                    cms,
                    CmsCaptchaSettings.NODE_CAPTCHAPRESET_IMAGEHEIGHT,
                    captchaSettingsLocale);
                if (CmsStringUtil.isNotEmpty(stringValue)) {
                    m_imageHeight = Integer.parseInt(stringValue);
                }

                // min. phrase length
                stringValue = preset.getStringValue(
                    cms,
                    CmsCaptchaSettings.NODE_CAPTCHAPRESET_MIN_PHRASE_LENGTH,
                    captchaSettingsLocale);
                if (CmsStringUtil.isNotEmpty(stringValue)) {
                    m_minPhraseLength = Integer.parseInt(stringValue);
                }

                // max. phrase length
                stringValue = preset.getStringValue(
                    cms,
                    CmsCaptchaSettings.NODE_CAPTCHAPRESET_MAX_PHRASE_LENGTH,
                    captchaSettingsLocale);
                if (CmsStringUtil.isNotEmpty(stringValue)) {
                    m_maxPhraseLength = Integer.parseInt(stringValue);
                }

                // min. font size
                stringValue = preset.getStringValue(
                    cms,
                    CmsCaptchaSettings.NODE_CAPTCHAPRESET_MIN_FONT_SIZE,
                    captchaSettingsLocale);
                if (CmsStringUtil.isNotEmpty(stringValue)) {
                    m_minFontSize = Integer.parseInt(stringValue);
                }

                // max. font size
                stringValue = preset.getStringValue(
                    cms,
                    CmsCaptchaSettings.NODE_CAPTCHAPRESET_MAX_FONT_SIZE,
                    captchaSettingsLocale);
                if (CmsStringUtil.isNotEmpty(stringValue)) {
                    m_maxFontSize = Integer.parseInt(stringValue);
                }

                // font color
                stringValue = preset.getStringValue(
                    cms,
                    CmsCaptchaSettings.NODE_CAPTCHAPRESET_FONTCOLOR,
                    captchaSettingsLocale);
                if (CmsStringUtil.isNotEmpty(stringValue)) {
                    setFontColor(stringValue);
                }

                // background color
                // if the field is defined but left blank, the default background color will be used
                // if the field is not defined a gimpy background image will be used
                stringValue = preset.getStringValue(
                    cms,
                    CmsCaptchaSettings.NODE_CAPTCHAPRESET_BACKGROUNDCOLOR,
                    captchaSettingsLocale);
                setBackgroundColor(stringValue);

                // holes per glyph
                stringValue = preset.getStringValue(
                    cms,
                    CmsCaptchaSettings.NODE_CAPTCHAPRESET_HOLESPERGLYPH,
                    captchaSettingsLocale);
                if (CmsStringUtil.isNotEmpty(stringValue)) {
                    setHolesPerGlyph(Integer.parseInt(stringValue));
                }

                // filter amplitude
                stringValue = preset.getStringValue(
                    cms,
                    CmsCaptchaSettings.NODE_CAPTCHAPRESET_FILTER_AMPLITUDE,
                    captchaSettingsLocale);
                if (CmsStringUtil.isNotEmpty(stringValue)) {
                    setFilterAmplitude(Integer.parseInt(stringValue));
                }

                // filter wave length
                stringValue = preset.getStringValue(
                    cms,
                    CmsCaptchaSettings.NODE_CAPTCHAPRESET_FILTER_WAVELENGTH,
                    captchaSettingsLocale);
                if (CmsStringUtil.isNotEmpty(stringValue)) {
                    setFilterWaveLength(Integer.parseInt(stringValue));
                }

                stringValue = preset.getStringValue(cms, CmsForm.NODE_CAPTCHA_CHARACTERS, captchaSettingsLocale);
                if (CmsStringUtil.isNotEmpty(stringValue)) {
                    setCharacterPool(stringValue);
                }

                if (CmsStringUtil.isNotEmpty(stringValue)) {