validate.js

一个基于ｊ２ｅｅ的电子相册系统

        var focusField = null;
        var i = 0;
        var fields = new Array();
        var formName = form.getAttributeNode("name");

        oShort = eval('new ' + formName.value + '_ShortValidations()');

        for (x in oShort) {
            var field = form[oShort[x][0]];

            if ((field.type == 'hidden' ||
                field.type == 'text' ||
                field.type == 'textarea' ||
                field.type == 'select-one' ||
                field.type == 'radio')  &&
                field.disabled == false) {

                var value = '';
                // get field's value
                if (field.type == "select-one") {
                    var si = field.selectedIndex;
                    if (si >= 0) {
                        value = field.options[si].value;
                    }
                } else {
                    value = field.value;
                }

                if (value.length > 0) {
                    if (!isAllDigits(value)) {
                        bValid = false;
                        if (i == 0) {
                            focusField = field;
                        }
                        fields[i++] = oShort[x][1];

                    } else {

                        var iValue = parseInt(value);
                        if (isNaN(iValue) || !(iValue >= -32768 && iValue <= 32767)) {
                            if (i == 0) {
                                focusField = field;
                            }
                            fields[i++] = oShort[x][1];
                            bValid = false;
                        }
                   }
               }
            }
        }
        if (fields.length > 0) {
           focusField.focus();
           alert(fields.join('\n'));
        }
        return bValid;
    }


    /*$RCSfile: validateFloat.js,v $ $Revision: 1.11 $ $Date: 2004/03/28 16:53:21 $ */
    /**
    * Check to see if fields are a valid float.
    * Fields are not checked if they are disabled.
    * <p>
    * @param form The form validation is taking place on.
    */
    function validateFloat(form) {
        var bValid = true;
        var focusField = null;
        var i = 0;
        var fields = new Array();
         var formName = form.getAttributeNode("name");

        oFloat = eval('new ' + formName.value + '_FloatValidations()');
        for (x in oFloat) {
        	var field = form[oFloat[x][0]];
        	
            if ((field.type == 'hidden' ||
                field.type == 'text' ||
                field.type == 'textarea' ||
                field.type == 'select-one' ||
                field.type == 'radio') &&
                field.disabled == false) {
        
            	var value = '';
                // get field's value
                if (field.type == "select-one") {
                    var si = field.selectedIndex;
                    if (si >= 0) {
                        value = field.options[si].value;
                    }
                } else {
                    value = field.value;
                }
        
                if (value.length > 0) {
                    // remove '.' before checking digits
                    var tempArray = value.split('.');
                    //Strip off leading '0'
                    var zeroIndex = 0;
                    var joinedString= tempArray.join('');
                    while (joinedString.charAt(zeroIndex) == '0') {
                        zeroIndex++;
                    }
                    var noZeroString = joinedString.substring(zeroIndex,joinedString.length);

                    if (!isAllDigits(noZeroString)) {
                        bValid = false;
                        if (i == 0) {
                            focusField = field;
                        }
                        fields[i++] = oFloat[x][1];

                    } else {
	                var iValue = parseFloat(value);
	                if (isNaN(iValue)) {
	                    if (i == 0) {
	                        focusField = field;
	                    }
	                    fields[i++] = oFloat[x][1];
	                    bValid = false;
	                }
                    }
                }
            }
        }
        if (fields.length > 0) {
           focusField.focus();
           alert(fields.join('\n'));
        }
        return bValid;
    }


   /*$RCSfile: validateEmail.js,v $ $Revision: 1.9 $ $Date: 2004/03/28 16:53:21 $ */
    /**
    * Check to see if fields are a valid email address.
    * Fields are not checked if they are disabled.
    * <p>
    * @param form The form validation is taking place on.
    */
    function validateEmail(form) {
        var bValid = true;
        var focusField = null;
        var i = 0;
        var fields = new Array();
        var formName = form.getAttributeNode("name");


        oEmail = eval('new ' + formName.value + '_email()');

        for (x in oEmail) {
            var field = form[oEmail[x][0]];
            if ((field.type == 'hidden' || 
                 field.type == 'text' ||
                 field.type == 'textarea') &&
                (field.value.length > 0) &&
                field.disabled == false) {
                if (!checkEmail(field.value)) {
                    if (i == 0) {
                        focusField = field;
                    }
                    fields[i++] = oEmail[x][1];
                    bValid = false;
                }
            }
        }
        if (fields.length > 0) {
            focusField.focus();
            alert(fields.join('\n'));
        }
        return bValid;
    }

    /**
     * Reference: Sandeep V. Tamhankar ([e-mail]),
     * http://javascript.internet.com
     */
    function checkEmail(emailStr) {
       if (emailStr.length == 0) {
           return true;
       }
       var emailPat=/^(.+)@(.+)$/;
       var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]";
       var validChars="\[^\\s" + specialChars + "\]";
       var quotedUser="(\"[^\"]*\")";
       var ipDomainPat=/^(\d{1,3})[.](\d{1,3})[.](\d{1,3})[.](\d{1,3})$/;
       var atom=validChars + '+';
       var word="(" + atom + "|" + quotedUser + ")";
       var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
       var domainPat=new RegExp("^" + atom + "(\\." + atom + ")*$");
       var matchArray=emailStr.match(emailPat);
       if (matchArray == null) {
           return false;
       }
       var user=matchArray[1];
       var domain=matchArray[2];
       if (user.match(userPat) == null) {
           return false;
       }
       var IPArray = domain.match(ipDomainPat);
       if (IPArray != null) {
           for (var i = 1; i <= 4; i++) {
              if (IPArray[i] > 255) {
                 return false;
              }
           }
           return true;
       }
       var domainArray=domain.match(domainPat);
       if (domainArray == null) {
           return false;
       }
       var atomPat=new RegExp(atom,"g");
       var domArr=domain.match(atomPat);
       var len=domArr.length;
       if ((domArr[domArr.length-1].length < 2) ||
           (domArr[domArr.length-1].length > 3)) {
           return false;
       }
       if (len < 2) {
           return false;
       }
       return true;
    }

  


    /*$RCSfile: validateMask.js,v $ $Revision: 1.10 $ $Date: 2004/03/28 16:53:21 $ */
    /**
    * Check to see if fields are a valid using a regular expression.
    * Fields are not checked if they are disabled.
    * <p>
    * @param form The form validation is taking place on.
    */
    function validateMask(form) {
        var isValid = true;
        var focusField = null;
        var i = 0;
        var fields = new Array();
        var formName = form.getAttributeNode("name"); 

        oMasked = eval('new ' + formName.value + '_mask()');      
        for (x in oMasked) {
            var field = form[oMasked[x][0]];

            if ((field.type == 'hidden' ||
                field.type == 'text' ||
                 field.type == 'textarea' ||
				 field.type == 'file') &&
                 (field.value.length > 0) &&
                 field.disabled == false) {

                if (!matchPattern(field.value, oMasked[x][2]("mask"))) {
                    if (i == 0) {
                        focusField = field;
                    }
                    fields[i++] = oMasked[x][1];
                    isValid = false;
                }
            }
        }

        if (fields.length > 0) {
           focusField.focus();
           alert(fields.join('\n'));
        }
        return isValid;
    }

    function matchPattern(value, mask) {
       return mask.exec(value);
    }


    /*$RCSfile: validateMinLength.js,v $ $Revision: 1.11 $ $Date: 2004/03/28 16:53:21 $ */
    /**
    * A field is considered valid if greater than the specified minimum.
    * Fields are not checked if they are disabled.
    * <p>
    * <strong>Caution:</strong> Using <code>validateMinLength</code> on a password field in a 
    *  login page gives unnecessary information away to hackers. While it only slightly
    *  weakens security, we suggest using it only when modifying a password.</p>
    * @param form The form validation is taking place on.
    */
    function validateMinLength(form) {
        var isValid = true;
        var focusField = null;
        var i = 0;
        var fields = new Array();
        var formName = form.getAttributeNode("name");


        oMinLength = eval('new ' + formName.value + '_minlength()');

        for (x in oMinLength) {
            var field = form[oMinLength[x][0]];

            if ((field.type == 'hidden' ||
                field.type == 'text' ||
                field.type == 'password' ||
                field.type == 'textarea') &&
                field.disabled == false) {

                var iMin = parseInt(oMinLength[x][2]("minlength"));
                if ((trim(field.value).length > 0) && (field.value.length < iMin)) {
                    if (i == 0) {
                        focusField = field;
                    }
                    fields[i++] = oMinLength[x][1];
                    isValid = false;
                }
            }
        }
        if (fields.length > 0) {
           focusField.focus();
           alert(fields.join('\n'));
        }
        return isValid;
    }


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