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feat: use relative url as redirect target #57

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feat: use relative url as redirect target #57

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9 changes: 9 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -97,3 +97,12 @@ title: baz
http://example.com/baz-page ⇒ http://example.com/2020/01/02/foo-post/

_If a post could not be located (due to incorrect value), the article will be redirected to http://example.com/foo-post_

## Options

```yaml
alias_generator:
relative_url: false
```

- **relative_url**: Use relative url as redirect target.
36 changes: 23 additions & 13 deletions lib/generator.js
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Original file line number Diff line number Diff line change
@@ -1,20 +1,30 @@
'use strict';

const { Cache, full_url_for } = require('hexo-util');
const { Cache, full_url_for, url_for } = require('hexo-util');

const templateCache = new Cache();
const template = hexo => path => templateCache.apply(path, () => {
const target = full_url_for.call(hexo, path);
return '<!DOCTYPE html>'
+ '<html>'
+ '<head>'
+ '<meta charset="utf-8">'
+ '<title>Redirecting...</title>'
+ '<link rel="canonical" href="' + target + '">'
+ '<meta http-equiv="refresh" content="0; url=' + target + '">'
+ '</head>'
+ '</html>';
});
const template = hexo => {
let targetUrl = path => full_url_for.call(hexo, path);
const aliasConfig = hexo.config.alias_generator;
if (typeof aliasConfig === 'object') {
if (aliasConfig.relative_url) {
targetUrl = path => url_for.call(hexo, path);
}
}

return path => templateCache.apply(path, () => {
const target = targetUrl(path);
return '<!DOCTYPE html>'
+ '<html>'
+ '<head>'
+ '<meta charset="utf-8">'
+ '<title>Redirecting...</title>'
+ '<link rel="canonical" href="' + target + '">'
+ '<meta http-equiv="refresh" content="0; url=' + target + '">'
+ '</head>'
+ '</html>';
})
};

function redirGenerator(data) {
const { alias, aliases } = data;
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