Python selenium 没有在数字海洋液滴上提供所需的输出
[英]Python selenium not giving the desired output on digital ocean droplet
问题描述
when I hit the url "expert.chegg.com/expertqna" I should get the following output as the page source.
当我点击网址“expert.chegg.com/expertqna”时，我应该得到以下输出作为页面源。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>Sign In</title>
<link rel='icon' href='https://media.cheggcdn.com/coop/dee/dee54b6f-3c3d-46c8-8176-c249a02f925d/1621571294284_chegg.ico' />
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=0" />
</head>
<body>
<!--[if IE 8]>
<script src="//cdnjs.cloudflare.com/ajax/libs/ie8/0.2.5/ie8.js"></script>
<![endif]-->
<!--[if lte IE 9]>
<script src="https://cdn.auth0.com/js/base64.js"></script>
<script src="https://cdn.auth0.com/js/es5-shim.min.js"></script>
<![endif]-->
<script src="https://cdn.auth0.com/js/lock/11.27/lock.min.js"></script>
<script>
// Decode utf8 characters properly
var config = JSON.parse(decodeURIComponent(escape(window.atob('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'))));
config.extraParams = config.extraParams || {};
var connection = config.connection;
var prompt = config.prompt;
var languageDictionary;
var language;
if (config.dict && config.dict.signin && config.dict.signin.title) {
languageDictionary = { title: config.dict.signin.title };
} else if (typeof config.dict === 'string') {
language = config.dict;
}
var loginHint = config.extraParams.login_hint;
var colors = config.colors || {};
// Available Lock configuration options: https://auth0.com/docs/libraries/lock/v11/configuration
var lock = new Auth0Lock(config.clientID, config.auth0Domain, {
auth: {
redirectUrl: config.callbackURL,
responseType: (config.internalOptions || {}).response_type ||
(config.callbackOnLocationHash ? 'token' : 'code'),
params: config.internalOptions
},
configurationBaseUrl: config.clientConfigurationBaseUrl,
overrides: {
__tenant: config.auth0Tenant,
__token_issuer: config.authorizationServer.issuer
},
assetsUrl: config.assetsUrl,
allowedConnections: connection ? [connection] : null,
rememberLastLogin: !prompt,
language: language,
languageDictionary: {
...languageDictionary,
error: {
login: {
"lock.invalid_email_password": "The email or password you entered is incorrect."
}
},
forgotPasswordAction: "Forgot password?",
blankPasswordErrorHint: "Password field cannot be empty",
blankEmailErrorHint: "Email field cannot be empty",
invalidEmailErrorHint: "Please enter a valid email",
emailInputPlaceholder: "Email",
passwordInputPlaceholder: "Password",
loginSubmitLabel: 'Sign in',
// forgotPasswordInstructions: "Please enter your registered email address to receive instructions on how to reset your password.",
forgotPasswordInstructions: "",
success: {
forgotPassword: `We’ve sent you an email to reset your password.`,
}
},
theme: {
logo: config.icon,
primaryColor: colors.primary ? colors.primary : 'green',
authButtons: {
"okta-oauth2": {
displayName: "Okta",
primaryColor: "#027dc12a",
foregroundColor: "#027dc1",
icon: "https://symbols-electrical.getvecta.com/stencil_90/13_okta-icon.9a16ac9161.png"
}
}
},
prefill: loginHint ? { email: loginHint, username: loginHint } : null,
allowShowPassword: true,
closable: false,
defaultADUsernameFromEmailPrefix: false
});
var pageBackgroundUrl = 'https://media.cheggcdn.com/coop/7cc/7cca2499-3d59-46ee-94a3-dcc5412ab4a3/1611143731736_BackgroundImage.jpg';
var inputWidth = 288;
if(colors.page_background) {
// existing classes
var css = `
.auth0-lock-header-bg-solid {
background-color: rgb(113, 113, 113) !important;
}
.auth0-loading-container {
opacity: 0 !important;
}
.auth0-lock.auth0-lock.auth0-lock-opened {
background-color: #000;
}
.auth0-lock.auth0-lock.auth0-lock-opened .auth0-lock-overlay {
opacity: 0.3;
}
.auth0-lock.auth0-lock .auth0-lock-widget {
width: 400px;
}
.auth0-lock.auth0-lock .auth0-lock-content-wrapper {
height: 500px;
}
.auth0-lock.auth0-lock .auth0-lock-overlay {
background: url("${pageBackgroundUrl}");
background-size: cover;
}
.auth0-lock.auth0-lock .auth0-lock-header {
padding: 16px;
}
.auth0-lock.auth0-lock .auth0-lock-header-logo {
height: 40px;
}
.auth0-lock-name {
display: none;
}
.auth0-lock.auth0-lock .auth0-lock-form {
display: flex;
justify-content: center;
margin-top: 0;
}
.auth0-lock.auth0-lock .auth0-lock-form p {
width: ${inputWidth}px !important;
}
.auth0-lock.auth0-lock .auth0-lock-content-body-wrapper {}
.auth0-lock-input-block {
margin-bottom: 32px !important;
width: ${inputWidth}px !important;
}
.auth0-lock.auth0-lock .auth0-lock-input-wrap {
border-radius: 0;
background-color: #fff;
border: solid 2px #e7e7e7;
}
.auth0-lock.auth0-lock .auth0-lock-input-wrap .auth0-lock-input {
font-size: 16px !important;
}
.auth0-lock.auth0-lock .auth0-lock-input-wrap.auth0-lock-input-wrap-with-icon {
padding-left: 0;
}
.auth0-lock.auth0-lock .auth0-lock-input-wrap.auth0-lock-input-wrap-with-icon > span {
display: none;
}
.auth0-lock.auth0-lock .auth0-lock-input-wrap.auth0-lock-focused {
border: solid 2px #00799E;
}
.auth0-lock.auth0-lock .auth0-lock-form .auth0-lock-alternative {
text-align: left
}
.auth0-lock-alternative-link {
color: #00799E !important;
font-size: 14px;
font-weight: 700;
}
/*.auth0-lock-submit[aria-label="Log In"] .auth0-label-submit {
visibility: hidden;
}
.auth0-lock-submit[aria-label="Log In"] .auth0-label-submit:after {
visibility: visible;
content: 'Sign in';
margin-left: -72px;
}*/
.auth0-label-submit {
text-transform: none;
font-weight: 700;
font-size: 20px;
height: unset !important;
line-height: unset !important;
}
.auth0-label-submit span {
display: none !important;
}
.auth0-lock.auth0-lock .auth0-global-message {
margin: 0 32px;
padding: 8px 16px;
color: #000;
font-size: 16px;
font-weight: 500;
line-height: 20px;
text-transform: none;
text-align: left;
position: relative;
}
.auth0-lock-error-msg {
position: absolute;
}
.auth0-lock.auth0-lock .auth0-global-message.auth0-global-message-success {
border: 1px solid #229d9e;
background-color: #eaf8f8;
z-index: 2;
}
.auth0-lock.auth0-lock .auth0-global-message.auth0-global-message-error {
border: 1px solid #fa5f4a;
background-color: #fff3f2;
z-index: 2;
}
`;
// custom classes
css = css + `
.auth0-custom-headmessage {
text-align: center;
font-size: 16px;
font-weight: normal;
padding: 8px 16px;
margin-top: 16px;
}
.auth0-custom-headmessage p {
font-size: 18px;
margin-bottom: 0 !important;
line-height: 8px;
}
.auth0-custom-hdmsghead {
font-size: 20px;
font-weight: 600;
}
.auth0-lock-namenew {
text-align: center;
z-index: 2;
font-size: 20px;
font-weight: 600;
color: #000;
}
.auth0-custom-tnc {
text-align: center;
padding: 0 16px;
margin-top: -16px;
font-size: 16px;
}
.auth0-custom-tnc > a {
color: #00799E !important;
text-decoration: none;
cursor: pointer;
font-weight: 600;
}
`;
var style = document.createElement('style');
style.appendChild(document.createTextNode(css));
document.body.appendChild(style);
}
lock.show();
const headerElem = document.getElementsByClassName('auth0-lock-header')[0];
if (headerElem) {
headerElem.insertAdjacentHTML('afterend', `
<div class='auth0-custom-headmessage'>
<p class='auth0-custom-hdmsghead' id='custom-msg-head'> Sign in </p>
<p id='custom-msg-para'> with your email and password </p>
</div>
`);
headerElem.insertAdjacentHTML('beforeend', `
<div class='auth0-lock-namenew' id = 'headname'>
The Expert Hub
</div>
`);
}
lock.on('signin ready', () => {
const headEl = document.getElementById('custom-msg-head');
if (headEl) {
headEl.innerText = 'Sign in'
}
const paraEl = document.getElementById('custom-msg-para');
if (paraEl) {
paraEl.innerText = 'with your email and password'
}
});
lock.on('forgot_password ready', () => {
const headEl = document.getElementById('custom-msg-head');
if (headEl) {
headEl.innerText = 'Forgot Password'
}
const paraEl = document.getElementById('custom-msg-para');
if (paraEl) {
paraEl.style.lineHeight = '1.2';
paraEl.style.fontSize = '16px';
paraEl.innerText = 'Enter your registered email ID. We will send you an email to reset your password'
}
const formElem = document.getElementsByClassName('auth0-lock-form')[0];
if (formElem) {
formElem.insertAdjacentHTML('afterend', `
<div class='auth0-custom-tnc'>
By resetting your password, you agree to the
<br>
<a href="https://www.chegg.com/termsofuse" target="_blank">Terms of Use</a> and
<a href="https://www.chegg.com/privacypolicy" target="_blank">Privacy Policy</a>
</div>
`);
}
});
</script>
</body>
</html>
but I am getting the below page source:但我得到以下页面来源：
<html lang="en"><head><meta charset="utf-8"><link rel="shortcut icon" href="/chegg.ico"><meta name="viewport" content="width=device-width,initial-scale=1"><meta name="theme-color" content="#000000"><link rel="manifest" href="/manifest.json"><title>Chegg</title><script type="text/javascript" src="https://bam.nr-data.net/1/1fabaefecb?a=500886526&sa=1&v=1167.2a4546b&t=Unnamed%20Transaction&rst=38146&ref=https://expert.chegg.com/expertqna&be=4565&fe=35360&dc=17729&af=err,xhr,stn,ins,spa&perf=%7B%22timing%22:%7B%22of%22:1624790790145,%22n%22:0,%22f%22:-2,%22dn%22:0,%22dne%22:273,%22c%22:273,%22s%22:381,%22ce%22:1900,%22rq%22:1900,%22rp%22:3958,%22rpe%22:3958,%22dl%22:3969,%22di%22:17708,%22ds%22:17728,%22de%22:17728,%22dc%22:35359,%22l%22:35359,%22le%22:35361%7D,%22navigation%22:%7B%7D%7D&fcp=17570&ja=%7B%22userUUID%22:%22%22%7D&jsonp=NREUM.setToken"></script><script src="https://js-agent.newrelic.com/nr-spa-1167.min.js"></script><script src="/nr-browser.js" type="text/javascript"></script><link href="/static/css/2.1d5ea050.chunk.css" rel="stylesheet"><style data-styled="" data-styled-version="4.4.0"></style></head><body><noscript>You need to enable JavaScript to run this app.</noscript><div id="root"><header class="sc-cooIXK iSIUkB"><div class="sc-fcdeBU IqMmO"><svg aria-label="Menu" role="img" version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 60 60" class="sc-hGoxap gjihCl sc-RcBXQ ijill" preserveAspectRatio="xMidYMid meet"><g transform="translate(18, 17)"><path d="M24,0.5H0" class="sc-TFwJa cskvsh"></path><path d="M24,12.5H0" class="sc-TFwJa cskvsh"></path><path d="M24,24.5H0" class="sc-TFwJa cskvsh"></path></g></svg><a href="/home" aria-label="Chegg home" class="sc-gmeYpB jbWjZR"><svg aria-label="Chegg" role="img" version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 211 64" id="logo-story-Chegg" class="sc-hGoxap eHpivK sc-itybZL eouJLu" preserveAspectRatio="xMidYMid meet"><path d="M204.6,13.6c-3.1,0-5.7,2.4-5.7,5.4s2.4,5.7,5.7,5.7c3.1,0,5.7-2.4,5.7-5.4C210.3,16,207.9,13.6,204.6,13.6L204.6,13.6L204.6,13.6z M204.6,23.6c-2.4,0-4.3-1.9-4.3-4.5c0-2.4,1.9-4.5,4.3-4.3c2.4,0,4.3,2.1,4.3,4.5c0,1.1-0.4,2.2-1.2,3C206.8,23.1,205.7,23.6,204.6,23.6L204.6,23.6L204.6,23.6z M205.8,19.3L205.8,19.3c0.7-0.2,1.2-0.7,1.2-1.4c0-0.4-0.2-0.9-0.5-1.2c-0.6-0.3-1.2-0.5-1.9-0.5c-0.9,0-1.7,0-2.1,0.2v5.4h1.2v-2.1h0.7c0.7,0,0.9,0.2,1.2,0.9c0.2,0.7,0.2,1.2,0.5,1.4h1.4c0-0.2-0.2-0.5-0.5-1.4C206.7,20,206.5,19.5,205.8,19.3L205.8,19.3L205.8,19.3L205.8,19.3z M204.4,18.8h-0.7v-1.7h0.7c0.7,0,1.2,0.2,1.2,0.9C205.8,18.6,205.1,18.8,204.4,18.8L204.4,18.8z 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M91.6,16.7C85.9,21,84,27.8,85,34.9c1.2,5.7,5.4,11.1,10.9,12.5c7.8,1.9,17.7,1.7,22.7-5.7c0.7-1.4,0.5-3.3-1.2-4c-4.3-2.1-8.3,0.7-11.8,2.1c-2.4,0.7-5,0.2-6.1-1.9c-0.7-1.4,0-3.3,1.4-3.8c6.9-1.9,13.9,3.5,19.9-1.4c2.1-4.5-0.2-9-2.4-12.5C112.2,12,99.2,11,91.6,16.7L91.6,16.7L91.6,16.7L91.6,16.7z 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My python selenium code:我的python硒代码：
from selenium import webdriver
import time
from selenium.webdriver.common.keys import Keys
def index(request):
if(request.method == "POST"):
body_unicode = request.body.decode('utf-8')
body = json.loads(body_unicode)
username = body['username']
password = body['password']
fireFoxOptions = webdriver.FirefoxOptions()
fireFoxOptions.headless = True
#firefoxProfile = webdriver.FirefoxProfile()
#firefoxProfile.set_preference("xpinstall.signatures.required", False)
#firefoxProfile.update_preferences()
driver = webdriver.Firefox(options=fireFoxOptions)
# driver = webdriver.Firefox()
driver.get("https://expert.chegg.com/expertqna")
# assert "Python" in driver.title
# elem = driver.find_element_by_name("q")
# elem.clear()
# elem.send_keys("pycon")
# a = elem.send_keys(Keys.RETURN)
time.sleep(40)
print(driver.page_source)
Note: 1. The code works in the local machine with firefox as well as chrome driver but doesn't work with either on digitalocean droplet.注意： 1. 代码在本地机器上运行 firefox 和 chrome 驱动程序，但不适用于 digitalocean droplet。 2. I get the page that I hit not the page to which the site redirects after hitting the original link. 2. 我得到的是我点击的页面，而不是点击原始链接后站点重定向到的页面。
2 个解决方案
解决方案1
0 2021-06-27 11:05:33
CheggYou need to enable JavaScript to run this app.HomeExpert Q&AMy answersSomething went wrong
The error is telling you to enable JavaScript, you can enable javascript via chrome options.错误告诉您启用 JavaScript，您可以通过 chrome 选项启用 JavaScript。
options.add_argument("javascript.enabled", True)
If that doesn't work then you can also try using the JavaScript flag如果这不起作用，那么您也可以尝试使用 JavaScript 标志
options.add_argument("--enable-javascript")
解决方案2
0 2021-06-30 06:48:53
After one week I found the solution.一周后，我找到了解决方案。 Note: I am not underpromoting or promoting anything just sharing my own experience.注意：我不是在宣传或宣传任何东西，只是分享我自己的经验。
- First of all I tried everything on digital ocean to run the headless browser.首先，我尝试了数字海洋上的所有内容来运行无头浏览器。 And it worked perfectly fine.它工作得非常好。 But the particular website was not working on the digitalocean droplet for some reason(which I still don't know).但是由于某种原因（我仍然不知道），该特定网站没有在 digitalocean droplet 上工作。 After using vps(and actually seeing what is happening I noticed that the url that I am hitting is not loading for some reason. I checked the console, there were some errors(not able fetch 403 forbidden) which didn't help me draw any conclusion.使用 vps 后（实际上看到发生了什么，我注意到我点击的 url 由于某种原因没有加载。我检查了控制台，有一些错误（无法获取 403 禁止）并没有帮助我绘制任何结论。
- Then I tried Amazon aws server and it worked.然后我尝试了 Amazon aws 服务器并且它工作正常。
This may be very specific case that I faced.这可能是我遇到的非常具体的情况。 But if anyone faces this issue you may try this.但是如果有人遇到这个问题，你可以试试这个。
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使用 crontab 自动执行位于 Digital Ocean 液滴上的 python 脚本？ - Automatically execute a python script that sits on a Digital Ocean droplet using crontab?
Django的Digital Ocean Droplet错误 - Error with Digital Ocean Droplet for Django
没有在python中提供所需的输出 - Not giving desired output in python
如何将 fastapi api 部署到数字海洋水滴？ - How to deploy a fastapi api to a digital ocean droplet?
Python正则表达式没有给出所需的输出 - Python regex not giving desired output
如何在Droplet Digital Ocean上使用Flask和Nginx更改HTML内容？ - How to change HTML content with Flask and Nginx on Droplet Digital Ocean?
如何在Digital Ocean Droplet中安装BeautifulSoup？ - How can I install BeautifulSoup in a Digital Ocean droplet?
无法让 Celery 使用 prod 设置处理数字海洋水滴 - Can't get Celery to work on digital ocean droplet with prod settings
多处理示例未提供所需的输出python3 - Multiprocessing example not giving the desired output python3
Python 中的表格模块未给出所需的 output - Tabulate module in Python not giving the desired output
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