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HADB committed Apr 16, 2018
1 parent 8c1f396 commit 7a79b62
Showing 1 changed file with 76 additions and 76 deletions.
152 changes: 76 additions & 76 deletions get-weixin-code.html
Original file line number Diff line number Diff line change
@@ -1,92 +1,92 @@
<!DOCTYPE html>
<html lang="en">

<head>
<meta charset="UTF-8">
<title>微信登录</title>
</head>
<head>
<meta charset="UTF-8">
<title>微信登录</title>
</head>

<body>
<script>
var GWC = {
version: '1.1.1',
urlParams: {},
appendParams: function(url, params) {
if (params) {
var baseWithSearch = url.split('#')[0];
var hash = url.split('#')[1];
for (var key in params) {
var attrValue = params[key];
if (attrValue !== undefined) {
var newParam = key + "=" + attrValue;
if (baseWithSearch.indexOf('?') > 0) {
var oldParamReg = new RegExp('^' + key + '=[-%.!~*\'\(\)\\w]*', 'g');
if (oldParamReg.test(baseWithSearch)) {
baseWithSearch = baseWithSearch.replace(oldParamReg, newParam);
} else {
baseWithSearch += "&" + newParam;
}
<body>
<script>
var GWC = {
version: '1.2.0',
urlParams: {},
appendParams: function (url, params) {
if (params) {
var baseWithSearch = url.split('#')[0];
var hash = url.split('#')[1];
for (var key in params) {
var attrValue = params[key];
if (attrValue !== undefined) {
var newParam = key + "=" + attrValue;
if (baseWithSearch.indexOf('?') > 0) {
var oldParamReg = new RegExp('^' + key + '=[-%.!~*\'\(\)\\w]*', 'g');
if (oldParamReg.test(baseWithSearch)) {
baseWithSearch = baseWithSearch.replace(oldParamReg, newParam);
} else {
baseWithSearch += "?" + newParam;
baseWithSearch += "&" + newParam;
}
} else {
baseWithSearch += "?" + newParam;
}
}

if (hash) {
url = baseWithSearch + '#' + hash;
} else {
url = baseWithSearch;
}
}
return url;
},
getUrlParams: function() {
var pairs = location.search.substring(1).split('&');
for (var i = 0; i < pairs.length; i++) {
var pos = pairs[i].indexOf('=');
if (pos === -1) {
continue;
}
GWC.urlParams[pairs[i].substring(0, pos)] = decodeURIComponent(pairs[i].substring(pos + 1));
}
},
doRedirect: function() {
var code = GWC.urlParams['code'];
var appId = GWC.urlParams['appid'];
var scope = GWC.urlParams['scope'] || 'snsapi_base';
var state = GWC.urlParams['state'];
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
var baseUrl;
var redirectUri;

if (!code) {
baseUrl = "https://open.weixin.qq.com/connect/oauth2/authorize#wechat_redirect";
if(scope == 'snsapi_login' && !isMp){
baseUrl = "https://open.weixin.qq.com/connect/qrconnect";
}
//第一步,没有拿到code,跳转至微信授权页面获取code
redirectUri = GWC.appendParams(baseUrl, {
'appid': appId,
'redirect_uri': encodeURIComponent(location.href),
'response_type': 'code',
'scope': scope,
'state': state,
});
if (hash) {
url = baseWithSearch + '#' + hash;
} else {
//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
redirectUri = GWC.appendParams(GWC.urlParams['redirect_uri'], {
'code': code,
'state': state
});
url = baseWithSearch;
}
}
return url;
},
getUrlParams: function () {
var pairs = location.search.substring(1).split('&');
for (var i = 0; i < pairs.length; i++) {
var pos = pairs[i].indexOf('=');
if (pos === -1) {
continue;
}
GWC.urlParams[pairs[i].substring(0, pos)] = decodeURIComponent(pairs[i].substring(pos + 1));
}
},
doRedirect: function () {
var code = GWC.urlParams['code'];
var appId = GWC.urlParams['appid'];
var scope = GWC.urlParams['scope'] || 'snsapi_base';
var state = GWC.urlParams['state'];
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
var baseUrl;
var redirectUri;

location.href = redirectUri;
if (!code) {
baseUrl = "https://open.weixin.qq.com/connect/oauth2/authorize#wechat_redirect";
if (scope == 'snsapi_login' && !isMp) {
baseUrl = "https://open.weixin.qq.com/connect/qrconnect";
}
//第一步,没有拿到code,跳转至微信授权页面获取code
redirectUri = GWC.appendParams(baseUrl, {
'appid': appId,
'redirect_uri': encodeURIComponent(location.href),
'response_type': 'code',
'scope': scope,
'state': state,
});
} else {
//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
redirectUri = GWC.appendParams(GWC.urlParams['redirect_uri'], {
'code': code,
'state': state
});
}
};

GWC.getUrlParams();
GWC.doRedirect();
</script>
</body>
location.href = redirectUri;
}
};

GWC.getUrlParams();
GWC.doRedirect();
</script>
</body>

</html>
</html>

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