95 lines
3.9 KiB
HTML
Executable File
95 lines
3.9 KiB
HTML
Executable File
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>微信登录</title>
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</head>
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<body>
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<script type="text/javascript" src="https://cdn.bootcdn.net/ajax/libs/vConsole/3.9.0/vconsole.min.js"></script>
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<script>
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var GWC = {
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version: '1.2.0',
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urlParams: {},
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appendParams: function (url, params) {
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if (params) {
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var baseWithSearch = url.split('#')[0];
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var hash = url.split('#')[1];
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for (var key in params) {
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var attrValue = params[key];
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if (attrValue !== undefined) {
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var newParam = key + "=" + attrValue;
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if (baseWithSearch.indexOf('?') > 0) {
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var oldParamReg = new RegExp('^' + key + '=[-%.!~*\'\(\)\\w]*', 'g');
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if (oldParamReg.test(baseWithSearch)) {
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baseWithSearch = baseWithSearch.replace(oldParamReg, newParam);
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} else {
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baseWithSearch += "&" + newParam;
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}
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} else {
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baseWithSearch += "?" + newParam;
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}
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}
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}
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if (hash) {
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url = baseWithSearch + '#' + hash;
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} else {
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url = baseWithSearch;
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}
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}
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return url;
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},
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getUrlParams: function () {
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var pairs = location.search.substring(1).split('&');
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for (var i = 0; i < pairs.length; i++) {
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var pos = pairs[i].indexOf('=');
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if (pos === -1) {
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continue;
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}
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GWC.urlParams[pairs[i].substring(0, pos)] = decodeURIComponent(pairs[i].substring(pos + 1));
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}
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},
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doRedirect: function () {
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var code = GWC.urlParams['code'];
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var redirect_uri = GWC.urlParams['redirect_uri'];
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// var appId = 'wx47db6cca5930ce74';
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var appId = GWC.urlParams['appid'];
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var scope = GWC.urlParams['scope'] || 'snsapi_base';
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var state = GWC.urlParams['state'];
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var isMp = GWC.urlParams['isMp']; //isMp为true时使用开放平台作授权登录，false为网页扫码登录
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var baseUrl;
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var redirectUri;
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console.log('appid',appId)
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if (!code) {
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baseUrl = "https://open.weixin.qq.com/connect/oauth2/authorize#wechat_redirect";
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if (scope == 'snsapi_login' && !isMp) {
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baseUrl = "https://open.weixin.qq.com/connect/qrconnect";
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}
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//第一步，没有拿到code，跳转至微信授权页面获取code
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redirectUri = GWC.appendParams(baseUrl, {
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'appid': appId,
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'redirect_uri': encodeURIComponent(location.href),
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'response_type': 'code',
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'scope': scope,
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'state': encodeURIComponent(state),
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});
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} else {
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//第二步，从微信授权页面跳转回来，已经获取到了code，再次跳转到实际所需页面
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redirectUri = GWC.appendParams(GWC.urlParams['redirect_uri'], {
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'code': code,
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'state': encodeURIComponent(state)
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});
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}
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location.href = redirectUri;
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}
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};
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GWC.getUrlParams();
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GWC.doRedirect();
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</script>
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</body>
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</html> |