| // Copyright 2018 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package com.google.gitiles.doc; |
| |
| /** |
| * Constant definitions for Soy utilities. |
| * |
| * <p>These constant definitions are copied from Soy internal packages, and are repeated here at the |
| * request of Soy team to limit our dependencies on their internal packages. The text still refers |
| * to "zSoyz" for consistency with other non-Markdown parts of Gitiles. |
| */ |
| final class SoyConstants { |
| /** |
| * Innocuous output when an image data URI fails escaping. |
| * |
| * <p>When escaper fails, we need to return something that is both clearly an image, but clearly |
| * invalid. We don't want the browser to fetch anything. We also don't necessarily want a |
| * transparent gif, since it doesn't alert developers to an issue. And finally, by not starting |
| * with GIF89a, we ensure the browser doesn't attempt to actually decode it and crash. |
| * |
| * <p>Based on {@link |
| * com.google.template.soy.shared.internal.EscapingConventions.FilterImageDataUri}. |
| */ |
| static String IMAGE_URI_INNOCUOUS_OUTPUT = "data:image/gif;base64,zSoyz"; |
| |
| /** |
| * Innocuous output when a URI fails escaping. |
| * |
| * <p>about:invalid is registered in http://www.w3.org/TR/css3-values/#about-invalid: "The |
| * about:invalid URI references a non-existent document with a generic error condition. It can be |
| * used when a URI is necessary, but the default value shouldn't be resolveable as any type of |
| * document." |
| * |
| * <p>Based on {@link |
| * com.google.template.soy.shared.internal.EscapingConventions.FilterNormalizeUri}. |
| */ |
| static String NORMAL_URI_INNOCUOUS_OUTPUT = "about:invalid#zSoyz"; |
| } |