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92c4d6d3a3
The new validators already solve this problem, but as a second layer of defence, the generators should also be secured. Issue #2637
87 lines
3.4 KiB
JavaScript
87 lines
3.4 KiB
JavaScript
/**
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* @license
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* Visual Blocks Language
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*
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* Copyright 2012 Google Inc.
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* https://developers.google.com/blockly/
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @fileoverview Generating Python for colour blocks.
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* @author fraser@google.com (Neil Fraser)
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*/
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'use strict';
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goog.provide('Blockly.Python.colour');
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goog.require('Blockly.Python');
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Blockly.Python['colour_picker'] = function(block) {
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// Colour picker.
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var code = Blockly.Python.quote_(block.getFieldValue('COLOUR'));
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return [code, Blockly.Python.ORDER_ATOMIC];
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};
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Blockly.Python['colour_random'] = function(block) {
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// Generate a random colour.
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Blockly.Python.definitions_['import_random'] = 'import random';
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var code = '\'#%06x\' % random.randint(0, 2**24 - 1)';
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return [code, Blockly.Python.ORDER_FUNCTION_CALL];
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};
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Blockly.Python['colour_rgb'] = function(block) {
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// Compose a colour from RGB components expressed as percentages.
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var functionName = Blockly.Python.provideFunction_(
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'colour_rgb',
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['def ' + Blockly.Python.FUNCTION_NAME_PLACEHOLDER_ + '(r, g, b):',
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' r = round(min(100, max(0, r)) * 2.55)',
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' g = round(min(100, max(0, g)) * 2.55)',
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' b = round(min(100, max(0, b)) * 2.55)',
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' return \'#%02x%02x%02x\' % (r, g, b)']);
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var r = Blockly.Python.valueToCode(block, 'RED',
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Blockly.Python.ORDER_NONE) || 0;
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var g = Blockly.Python.valueToCode(block, 'GREEN',
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Blockly.Python.ORDER_NONE) || 0;
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var b = Blockly.Python.valueToCode(block, 'BLUE',
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Blockly.Python.ORDER_NONE) || 0;
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var code = functionName + '(' + r + ', ' + g + ', ' + b + ')';
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return [code, Blockly.Python.ORDER_FUNCTION_CALL];
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};
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Blockly.Python['colour_blend'] = function(block) {
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// Blend two colours together.
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var functionName = Blockly.Python.provideFunction_(
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'colour_blend',
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['def ' + Blockly.Python.FUNCTION_NAME_PLACEHOLDER_ +
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'(colour1, colour2, ratio):',
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' r1, r2 = int(colour1[1:3], 16), int(colour2[1:3], 16)',
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' g1, g2 = int(colour1[3:5], 16), int(colour2[3:5], 16)',
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' b1, b2 = int(colour1[5:7], 16), int(colour2[5:7], 16)',
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' ratio = min(1, max(0, ratio))',
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' r = round(r1 * (1 - ratio) + r2 * ratio)',
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' g = round(g1 * (1 - ratio) + g2 * ratio)',
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' b = round(b1 * (1 - ratio) + b2 * ratio)',
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' return \'#%02x%02x%02x\' % (r, g, b)']);
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var colour1 = Blockly.Python.valueToCode(block, 'COLOUR1',
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Blockly.Python.ORDER_NONE) || '\'#000000\'';
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var colour2 = Blockly.Python.valueToCode(block, 'COLOUR2',
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Blockly.Python.ORDER_NONE) || '\'#000000\'';
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var ratio = Blockly.Python.valueToCode(block, 'RATIO',
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Blockly.Python.ORDER_NONE) || 0;
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var code = functionName + '(' + colour1 + ', ' + colour2 + ', ' + ratio + ')';
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return [code, Blockly.Python.ORDER_FUNCTION_CALL];
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};
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