我想使用Greasemonkey脚本在页面中提交表单。 Firefox会记住表单中的名称和pw,因此在加载页面时,名称和pw已经填充。所以只想提交自动登录。
表单代码:
<form class="enableAutoFocus" method="post" id="login_form" action="http://localhost/plan/login_form">
<div id="login-form">
<input name="came_from" value="" type="hidden">
<input name="next" type="hidden">
<input name="ajax_load" type="hidden">
<input name="ajax_include_head" type="hidden">
<input name="target" type="hidden">
<input name="mail_password_url" type="hidden">
<input name="join_url" type="hidden">
<input name="form.submitted" value="1" type="hidden">
<input name="js_enabled" id="js_enabled" value="0" type="hidden">
<input name="cookies_enabled" id="cookies_enabled" value="" type="hidden">
<input name="login_name" id="login_name" value="" type="hidden">
<input name="pwd_empty" id="pwd_empty" value="0" type="hidden">
<div class="field">
<label for="__ac_name">Login Name</label>
<input style="margin-right: 0px; padding-right: 0px;" size="15" name="__ac_name" value="" id="__ac_name" type="text"><img title="Max field length is unknown" style="position:relative; z-index: 999; cursor:pointer; vertical-align: bottom; border: 0; width: 14px; height: 19px; display:none;" class="ife_marker" src="chrome://informenter/skin/marker.png" id="__ac_name_ife_marker_1">
</div>
<div class="field">
<label for="__ac_password">Password</label>
<input style="margin-right: 0px; padding-right: 0px;" size="15" name="__ac_password" id="__ac_password" type="password"><img title="Max field length is unknown" style="position:relative; z-index: 999; cursor:pointer; vertical-align: bottom; border: 0; width: 14px; height: 19px; display:none;" class="ife_marker" src="chrome://informenter/skin/marker.png" id="__ac_password_ife_marker_2">
</div>
<div class="formControls">
<input class="context" name="submit" value="Log in" type="submit">
</div>
</div>
</form>
在页面上,第一个表单是搜索表单,所以首先我尝试了document.forms[0].submit();
它有效。
然后我将代码更改为:
document.forms[1].submit();
错误控制台报告:
Error: document.forms[1].submit is not a function
然后我搜索了一下,找到了下面的代码并试了一下。
function ClicktheButton(obj) {
var evt = document.createEvent("MouseEvents");
evt.initMouseEvent("click", true, true, window,
0, 0, 0, 0, 0, false, false, false, false, 0, null);
var canceled = !obj.dispatchEvent(evt);
}
var StupidButton = document.querySelector('input[type="submit"][value="Log in"]');
ClicktheButton(StupidButton);
点击功能有效,但名称和pw为空,因此不接受登录。
有人可以做一些解释和帮助吗?感谢。
答案 0 :(得分:0)
浏览器需要一点时间来填写用户名和密码 当页面首次加载并且Greasemonkey脚本触发时,它们在那一瞬间仍然是空白的。
所以你需要等待填写这些字段。像这样:
var numIntervals = 0;
var pwFilledTimer = setInterval ( function () {
var usrNameInp = document.getElementById ("__ac_name");
if (usrNameInp && usrNameInp.value != "") {
var passWrdInp = document.getElementById ("__ac_password");
if (passWrdInp && passWrdInp.value != "") {
clearInterval (pwFilledTimer);
var submitButton = document.querySelector (
'input[type="submit"][value="Log in"]'
);
var clickEvent = document.createEvent ('MouseEvents');
clickEvent.initEvent ('click', true, true);
submitButton.dispatchEvent (clickEvent);
}
}
numIntervals++;
if (numIntervals > 10) {
/*--- Stop the timer after about 2 seconds so it doesn't
interfere with manual logins.
*/
clearInterval (pwFilledTimer);
}
},
200
);