diff --git a/lam/lib/functions.js b/lam/lib/functions.js new file mode 100644 index 00000000..efbe4f64 --- /dev/null +++ b/lam/lib/functions.js @@ -0,0 +1,524 @@ +/* $Id$ */ + + +/** + * Displays an confirmation box beforme to submit a "DROP/DELETE/ALTER" query. + * This function is called while clicking links + * + * @param object the link + * @param object the sql query to submit + * + * @return boolean whether to run the query or not + */ +function confirmLink(theLink, theSqlQuery) +{ + // Confirmation is not required in the configuration file + // or browser is Opera (crappy js implementation) + if (confirmMsg == '' || typeof(window.opera) != 'undefined') { + return true; + } + + var is_confirmed = confirm(confirmMsg + ' :\n' + theSqlQuery); + if (is_confirmed) { + theLink.href += '&is_js_confirmed=1'; + } + + return is_confirmed; +} // end of the 'confirmLink()' function + + +/** + * Displays an error message if a "DROP DATABASE" statement is submitted + * while it isn't allowed, else confirms a "DROP/DELETE/ALTER" query before + * sumitting it if required. + * This function is called by the 'checkSqlQuery()' js function. + * + * @param object the form + * @param object the sql query textarea + * + * @return boolean whether to run the query or not + * + * @see checkSqlQuery() + */ +function confirmQuery(theForm1, sqlQuery1) +{ + // Confirmation is not required in the configuration file + if (confirmMsg == '') { + return true; + } + + // The replace function (js1.2) isn't supported + else if (typeof(sqlQuery1.value.replace) == 'undefined') { + return true; + } + + // js1.2+ -> validation with regular expressions + else { + // "DROP DATABASE" statement isn't allowed + if (noDropDbMsg != '') { + var drop_re = new RegExp('DROP\\s+(IF EXISTS\\s+)?DATABASE\\s', 'i'); + if (drop_re.test(sqlQuery1.value)) { + alert(noDropDbMsg); + theForm1.reset(); + sqlQuery1.focus(); + return false; + } // end if + } // end if + + // Confirms a "DROP/DELETE/ALTER" statement + // + // TODO: find a way (if possible) to use the parser-analyser + // for this kind of verification + // For now, I just added a ^ to check for the statement at + // beginning of expression + + //var do_confirm_re_0 = new RegExp('DROP\\s+(IF EXISTS\\s+)?(TABLE|DATABASE)\\s', 'i'); + //var do_confirm_re_1 = new RegExp('ALTER\\s+TABLE\\s+((`[^`]+`)|([A-Za-z0-9_$]+))\\s+DROP\\s', 'i'); + //var do_confirm_re_2 = new RegExp('DELETE\\s+FROM\\s', 'i'); + var do_confirm_re_0 = new RegExp('^DROP\\s+(IF EXISTS\\s+)?(TABLE|DATABASE)\\s', 'i'); + var do_confirm_re_1 = new RegExp('^ALTER\\s+TABLE\\s+((`[^`]+`)|([A-Za-z0-9_$]+))\\s+DROP\\s', 'i'); + var do_confirm_re_2 = new RegExp('^DELETE\\s+FROM\\s', 'i'); + if (do_confirm_re_0.test(sqlQuery1.value) + || do_confirm_re_1.test(sqlQuery1.value) + || do_confirm_re_2.test(sqlQuery1.value)) { + var message = (sqlQuery1.value.length > 100) + ? sqlQuery1.value.substr(0, 100) + '\n ...' + : sqlQuery1.value; + var is_confirmed = confirm(confirmMsg + ' :\n' + message); + // drop/delete/alter statement is confirmed -> update the + // "is_js_confirmed" form field so the confirm test won't be + // run on the server side and allows to submit the form + if (is_confirmed) { + theForm1.elements['is_js_confirmed'].value = 1; + return true; + } + // "DROP/DELETE/ALTER" statement is rejected -> do not submit + // the form + else { + window.focus(); + sqlQuery1.focus(); + return false; + } // end if (handle confirm box result) + } // end if (display confirm box) + } // end confirmation stuff + + return true; +} // end of the 'confirmQuery()' function + + +/** + * Displays an error message if the user submitted the sql query form with no + * sql query, else checks for "DROP/DELETE/ALTER" statements + * + * @param object the form + * + * @return boolean always false + * + * @see confirmQuery() + */ +function checkSqlQuery(theForm) +{ + var sqlQuery = theForm.elements['sql_query']; + var isEmpty = 1; + + // The replace function (js1.2) isn't supported -> basic tests + if (typeof(sqlQuery.value.replace) == 'undefined') { + isEmpty = (sqlQuery.value == '') ? 1 : 0; + if (isEmpty && typeof(theForm.elements['sql_file']) != 'undefined') { + isEmpty = (theForm.elements['sql_file'].value == '') ? 1 : 0; + } + if (isEmpty && typeof(theForm.elements['sql_localfile']) != 'undefined') { + isEmpty = (theForm.elements['sql_localfile'].value == '') ? 1 : 0; + } + if (isEmpty && typeof(theForm.elements['id_bookmark']) != 'undefined') { + isEmpty = (theForm.elements['id_bookmark'].value == null || theForm.elements['id_bookmark'].value == ''); + } + } + // js1.2+ -> validation with regular expressions + else { + var space_re = new RegExp('\\s+'); + isEmpty = (sqlQuery.value.replace(space_re, '') == '') ? 1 : 0; + // Checks for "DROP/DELETE/ALTER" statements + if (!isEmpty && !confirmQuery(theForm, sqlQuery)) { + return false; + } + if (isEmpty && typeof(theForm.elements['sql_file']) != 'undefined') { + isEmpty = (theForm.elements['sql_file'].value.replace(space_re, '') == '') ? 1 : 0; + } + if (isEmpty && typeof(theForm.elements['sql_localfile']) != 'undefined') { + isEmpty = (theForm.elements['sql_localfile'].value.replace(space_re, '') == '') ? 1 : 0; + } + if (isEmpty && typeof(theForm.elements['id_bookmark']) != 'undefined') { + isEmpty = (theForm.elements['id_bookmark'].value == null || theForm.elements['id_bookmark'].value == ''); + isEmpty = (theForm.elements['id_bookmark'].selectedIndex == 0); + } + if (isEmpty) { + theForm.reset(); + } + } + + if (isEmpty) { + sqlQuery.select(); + alert(errorMsg0); + sqlQuery.focus(); + return false; + } + + return true; +} // end of the 'checkSqlQuery()' function + + +/** + * Displays an error message if an element of a form hasn't been completed and + * should be + * + * @param object the form + * @param string the name of the form field to put the focus on + * + * @return boolean whether the form field is empty or not + */ +function emptyFormElements(theForm, theFieldName) +{ + var isEmpty = 1; + var theField = theForm.elements[theFieldName]; + // Whether the replace function (js1.2) is supported or not + var isRegExp = (typeof(theField.value.replace) != 'undefined'); + + if (!isRegExp) { + isEmpty = (theField.value == '') ? 1 : 0; + } else { + var space_re = new RegExp('\\s+'); + isEmpty = (theField.value.replace(space_re, '') == '') ? 1 : 0; + } + if (isEmpty) { + theForm.reset(); + theField.select(); + alert(errorMsg0); + theField.focus(); + return false; + } + + return true; +} // end of the 'emptyFormElements()' function + + +/** + * Ensures a value submitted in a form is numeric and is in a range + * + * @param object the form + * @param string the name of the form field to check + * @param integer the minimum authorized value + * @param integer the maximum authorized value + * + * @return boolean whether a valid number has been submitted or not + */ +function checkFormElementInRange(theForm, theFieldName, min, max) +{ + var theField = theForm.elements[theFieldName]; + var val = parseInt(theField.value); + + if (typeof(min) == 'undefined') { + min = 0; + } + if (typeof(max) == 'undefined') { + max = Number.MAX_VALUE; + } + + // It's not a number + if (isNaN(val)) { + theField.select(); + alert(errorMsg1); + theField.focus(); + return false; + } + // It's a number but it is not between min and max + else if (val < min || val > max) { + theField.select(); + alert(val + errorMsg2); + theField.focus(); + return false; + } + // It's a valid number + else { + theField.value = val; + } + + return true; +} // end of the 'checkFormElementInRange()' function + + +/** + * Ensures the choice between 'transmit', 'zipped', 'gzipped' and 'bzipped' + * checkboxes is consistant + * + * @param object the form + * @param string a code for the action that causes this function to be run + * + * @return boolean always true + */ +function checkTransmitDump(theForm, theAction) +{ + var formElts = theForm.elements; + + // 'zipped' option has been checked + if (theAction == 'zip' && formElts['zip'].checked) { + if (!formElts['asfile'].checked) { + theForm.elements['asfile'].checked = true; + } + if (typeof(formElts['gzip']) != 'undefined' && formElts['gzip'].checked) { + theForm.elements['gzip'].checked = false; + } + if (typeof(formElts['bzip']) != 'undefined' && formElts['bzip'].checked) { + theForm.elements['bzip'].checked = false; + } + } + // 'gzipped' option has been checked + else if (theAction == 'gzip' && formElts['gzip'].checked) { + if (!formElts['asfile'].checked) { + theForm.elements['asfile'].checked = true; + } + if (typeof(formElts['zip']) != 'undefined' && formElts['zip'].checked) { + theForm.elements['zip'].checked = false; + } + if (typeof(formElts['bzip']) != 'undefined' && formElts['bzip'].checked) { + theForm.elements['bzip'].checked = false; + } + } + // 'bzipped' option has been checked + else if (theAction == 'bzip' && formElts['bzip'].checked) { + if (!formElts['asfile'].checked) { + theForm.elements['asfile'].checked = true; + } + if (typeof(formElts['zip']) != 'undefined' && formElts['zip'].checked) { + theForm.elements['zip'].checked = false; + } + if (typeof(formElts['gzip']) != 'undefined' && formElts['gzip'].checked) { + theForm.elements['gzip'].checked = false; + } + } + // 'transmit' option has been unchecked + else if (theAction == 'transmit' && !formElts['asfile'].checked) { + if (typeof(formElts['zip']) != 'undefined' && formElts['zip'].checked) { + theForm.elements['zip'].checked = false; + } + if ((typeof(formElts['gzip']) != 'undefined' && formElts['gzip'].checked)) { + theForm.elements['gzip'].checked = false; + } + if ((typeof(formElts['bzip']) != 'undefined' && formElts['bzip'].checked)) { + theForm.elements['bzip'].checked = false; + } + } + + return true; +} // end of the 'checkTransmitDump()' function + + +/** + * This array is used to remember mark status of rows in browse mode + */ +var marked_row = new Array; + + +/** + * Sets/unsets the pointer and marker in browse mode + * + * @param object the table row + * @param interger the row number + * @param string the action calling this script (over, out or click) + * @param string the default background color + * @param string the color to use for mouseover + * @param string the color to use for marking a row + * + * @return boolean whether pointer is set or not + */ +function setPointer(theRow, theRowNum, theAction, theDefaultColor, thePointerColor, theMarkColor) +{ + var theCells = null; + + + + // 1. Pointer and mark feature are disabled or the browser can't get the + // row -> exits + if ((thePointerColor == '' && theMarkColor == '') + || typeof(theRow.style) == 'undefined') { + return false; + } + + // 2. Gets the current row and exits if the browser can't get it + if (typeof(document.getElementsByTagName) != 'undefined') { + theCells = theRow.getElementsByTagName('td'); + } + else if (typeof(theRow.cells) != 'undefined') { + theCells = theRow.cells; + } + else { + return false; + } + + // 3. Gets the current color... + var rowCellsCnt = theCells.length; + var domDetect = null; + var currentColor = null; + var newColor = null; + // 3.1 ... with DOM compatible browsers except Opera that does not return + // valid values with "getAttribute" + if (typeof(window.opera) == 'undefined' + && typeof(theCells[0].getAttribute) != 'undefined') { + currentColor = theCells[0].getAttribute('bgcolor'); + domDetect = true; + } + // 3.2 ... with other browsers + else { + currentColor = theCells[0].style.backgroundColor; + domDetect = false; + } // end 3 + + // 4. Defines the new color + // 4.1 Current color is the default one + if (currentColor == '' + || currentColor.toLowerCase() == theDefaultColor.toLowerCase()) { + if (theAction == 'over' && thePointerColor != '') { + newColor = thePointerColor; + } + else if (theAction == 'click' && theMarkColor != '') { + newColor = theMarkColor; + marked_row[theRowNum] = true; + } + } + // 4.1.2 Current color is the pointer one + else if (currentColor.toLowerCase() == thePointerColor.toLowerCase() + && (typeof(marked_row[theRowNum]) == 'undefined' || !marked_row[theRowNum])) { + if (theAction == 'out') { + newColor = theDefaultColor; + } + else if (theAction == 'click' && theMarkColor != '') { + newColor = theMarkColor; + marked_row[theRowNum] = true; + } + } + // 4.1.3 Current color is the marker one + else if (currentColor.toLowerCase() == theMarkColor.toLowerCase()) { + if (theAction == 'click') { + newColor = (thePointerColor != '') + ? thePointerColor + : theDefaultColor; + marked_row[theRowNum] = (typeof(marked_row[theRowNum]) == 'undefined' || !marked_row[theRowNum]) + ? true + : null; + } + } // end 4 + + // 5. Sets the new color... + if (newColor) { + var c = null; + // 5.1 ... with DOM compatible browsers except Opera + if (domDetect) { + for (c = 0; c < rowCellsCnt; c++) { + theCells[c].setAttribute('bgcolor', newColor, 0); + } // end for + } + // 5.2 ... with other browsers + else { + for (c = 0; c < rowCellsCnt; c++) { + theCells[c].style.backgroundColor = newColor; + } + } + } // end 5 + + return true; +} // end of the 'setPointer()' function + + +/** + * Checks/unchecks all tables + * + * @param string the form name + * @param boolean whether to check or to uncheck the element + * + * @return boolean always true + */ +function setCheckboxes(the_form, do_check) +{ + var elts = (typeof(document.forms[the_form].elements['selected_db[]']) != 'undefined') + ? document.forms[the_form].elements['selected_db[]'] + : (typeof(document.forms[the_form].elements['selected_tbl[]']) != 'undefined') + ? document.forms[the_form].elements['selected_tbl[]'] + : document.forms[the_form].elements['selected_fld[]']; + var elts_cnt = (typeof(elts.length) != 'undefined') + ? elts.length + : 0; + + if (elts_cnt) { + for (var i = 0; i < elts_cnt; i++) { + elts[i].checked = do_check; + } // end for + } else { + elts.checked = do_check; + } // end if... else + + return true; +} // end of the 'setCheckboxes()' function + + +/** + * Checks/unchecks all options of a