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chromedp 收到无效的 CSRF 令牌错误; Puppeteer 和浏览器都OK
来源:stackoverflow
2024-04-21 16:09:33
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在Golang实战开发的过程中,我们经常会遇到一些这样那样的问题,然后要卡好半天,等问题解决了才发现原来一些细节知识点还是没有掌握好。今天米云就整理分享《chromedp 收到无效的 CSRF 令牌错误; Puppeteer 和浏览器都OK》,聊聊,希望可以帮助到正在努力赚钱的你。
问题内容
我正在使用 chromedp 来测试我的基于 go 的网站。虽然我已经成功地使用它进行了基本的登录测试,但当我尝试注销刚刚登录的帐户时,我收到了 csrf 错误。
这是获取 csrf 错误的测试函数及其主要帮助程序。 httpserverurl 是正在运行的实时网络服务器或 httptest.server.url 的基本 url(无论哪种方式,我都会得到相同的 csrf 错误):
func testsignupduplicate(t *testing.t) {
ctx, cancel := context.withtimeout(context.background(), 3*time.second)
defer cancel()
ctx, cancel = chromedp.newcontext(ctx) // chromedp.withdebugf(log.printf),
defer cancel()
email := "[email protected]"
password := "asdfasdf"
signupwithcontext(ctx, t, email, password)
defer func() {
if err := usermanager.deletebyemail(email); err != nil {
t.fatal(err)
}
}()
var postsignoutclicklocationgot string
postsignoutclicklocationexpected := httpserverurl + "/"
if err := chromedp.run(ctx,
chromedp.click("//button[@class='sign-out-form__button']"),
chromedp.sleep(800*time.millisecond),
chromedp.location(&postsignoutclicklocationgot),
); err != nil {
t.fatal(err)
}
if postsignoutclicklocationgot != postsignoutclicklocationexpected {
t.logf("expected to be redirected to <%s> after signing out, but was here instead: <%s>",
postsignoutclicklocationexpected,
postsignoutclicklocationgot,
)
}
var location string
var html string
if err := chromedp.run(ctx,
//chromedp.waitready("//footer"),
chromedp.location(&location),
chromedp.innerhtml("/html", &html),
); err != nil {
t.fatalf("had trouble getting debug information: %s", err)
}
log.println(location)
log.println(html)
signupwithcontext(ctx, t, email, password)
expectedalertheading := "e-mail address already in use"
var gotalertheading string
if err := chromedp.run(ctx,
chromedp.text("//*[@class='alert__heading']", &gotalertheading),
); err != nil {
t.fatalf("couldn’t get alert heading: %s", err)
}
if expectedalertheading != gotalertheading {
t.fatalf("unexpected alert heading. want: «%s». got: «%s»", expectedalertheading, gotalertheading)
}
}
func signupwithcontext(ctx context.context, t *testing.t, email, password string) {
t.helper()
if err := chromedp.run(ctx,
chromedp.navigate(httpserverurl+"/signup/"),
chromedp.waitvisible("#email", chromedp.byid),
chromedp.sendkeys("#email", email, chromedp.byid),
chromedp.sendkeys("#password", password, chromedp.byid),
chromedp.submit("//button[@type='submit']"),
); err != nil {
t.fatal(err)
}
}
这是它的输出:
running tool: /usr/local/go/bin/go test -timeout 30s example.com/webdictions -run ^(testsignupduplicate)$
2019/07/05 15:26:02 http://127.0.0.1:53464/signout/
2019/07/05 15:26:02 <head></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">forbidden - csrf token invalid
</pre></body>
--- fail: testsignupduplicate (3.01s)
/users/comatoast/projects/predictionsweb/main_test.go:150: expected to be redirected to <http://127.0.0.1:53464/> after signing out, but was here instead: <http://127.0.0.1:53464/signout/>
/users/comatoast/projects/predictionsweb/main_test.go:177: couldn’t get alert heading: context deadline exceeded
fail
fail example.com/webdictions 3.073s
奇怪的是,puppeteer 程序不会出现这样的错误。最后,无论用户在开始测试之前是否已经拥有帐户,我都没有得到任何 csrf 错误的屏幕截图:
const puppeteer = require('puppeteer');
(async () => {
const opts = {
width: 800,
height: 600,
deviceScaleFactor: 2,
}
const browser = await puppeteer.launch({defaultViewport: opts});
const page = await browser.newPage();
await page.goto('http://www.localhost:3000/');
await page.click("a[href='/signup/']");
await page.type('#email', "[email protected]");
await page.type('#password', 'asdfasdf');
await page.click('[type="submit"]');
await page.screenshot({path: '1. should be the dashboard after signup.png'});
await page.click('.sign-out-form__button');
await page.screenshot({path: '2. should be slash.png'});
await page.click('a[href="/signup/"]')
await page.screenshot({path: '3. signup again.png'});
await page.type('#email', "[email protected]");
await page.type('#password', 'asdfasdf');
await page.click('[type="submit"]');
await page.screenshot({path: '4. after second identical signup attempt.png'});
// await page.screenshot({path: 'screenshot.png'});
await browser.close();
})();
同样,当我尝试在 safari 或 chrome 中两次注册同一帐户时,我会收到正常的“此电子邮件地址已在使用中”错误,而不是 csrf 错误。如果有的话,我通过 chromedp 做错了什么?
解决方案
事实证明,在第二次访问“注册”页面时,我有一个一键“注销”表单, chromedp.Submit("//button[@type='submit']") 是点击。将 signUpWithContext 中的路径更改为明确的 chromedp.Submit("//form[@action='/signup/']//button[@type='submit']") 修复了单击提交按钮的问题格式错误。
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