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2 Browser item JavaScript objects

Overview

This section describes Zabbix additions to the JavaScript language implemented with Duktape for use in the Browser item script. These additions supplement the JavaScript objects described on the Additional JavaScript objects page.

Browser

The Browser object manages WebDriver sessions, initializing a session upon creation and terminating it upon destruction. A single script can support up to four Browser objects.

To construct a Browser object, use the new Browser(options) syntax. The options (JSON object) parameter specifies browser options, usually the WebDriver options method result (for example, Browser.chromeOptions()).

The following methods are supported with the Browser object.

Method Description
navigate(url) Navigate to the specified URL.

Parameters:
url - (string) URL to navigate to.
getUrl() Return a string of the opened page URL.
getPageSource() Return a string of the opened page source.
findElement(strategy, selector) Return an Element object with one element in the opened page (or return null if no elements match strategy and selector).

Parameters:
strategy - (string, CSS selector/link text/partial link text/tag name/Xpath) Location strategy;
selector - (string) Element selector using the specified location strategy.
findElements(strategy, target) Return an array of Element objects with multiple elements in the opened page (or return an empty array if no elements match location strategy and target).

Parameters:
strategy - (string, CSS selector/link text/partial link text/tag name/Xpath) Location strategy;
target - (string) Element selector using the specified location strategy.
getCookies() Return an array of Cookie objects.
addCookie(cookie) Set cookies.

Parameters:
cookie - (Cookie object) Cookie to set.
getScreenshot() Return a string (base64 encoded image) of browser's viewport.
setScriptTimeout(timeout) Set script loading timeout.

Parameters:
timeout - (integer) Timeout value (in miliseconds).
setSessionTimeout(timeout) Set session (page load) timeout.

Parameters:
timeout - (integer) Timeout value (in miliseconds).
setElementWaitTimeout(timeout) Set element location strategy (implicit) timeout.

Parameters:
timeout - (integer) Timeout value (in miliseconds).
collectPerfEntries(mark) Collect performance entries to retrieve with the getResult() method.

Parameters:
mark - (string, optional) performance snapshot mark.
getRawPerfEntries() Return an array of performance entry objects.
getResult() Return a Result object with browser session statistics (error information, performance snapshots, etc.).
getError() Return a BrowserError object with browser errors (or return null if there are no browser errors).
setError(message) Set a custom error message to be included in the Result object.

Parameters:
message - (string) Error message.
discardError() Discard the error to be returned in the Result object.
getAlert() Return an Alert object with browser alerts (or return null if there are no browser alerts).
chromeOptions() Return a chromeOptions object with predefined Chrome browser options.
firefoxOptions() Return a firefoxOptions object with predefined Firefox browser options.
safariOptions() Return a safariOptions object with predefined Safari browser options.
edgeOptions() Return an edgeOptions object with predefined Edge browser options.

All Browser methods can throw the following errors:

  • BrowserError - derived from the Error object that is thrown if the Browser constructor fails; contains an additional browser property with a Browser object that threw this BrowserError.
  • WebdriverError - derived from BrowserError; contains the same properties as the BrowserError object, which indicate if the error was generated in response to an error in the WebDriver response.

Element

The Element object is returned by the Browser object findElement()/findElements() methods and cannot be constructed directly.

The Element object represents an element in the web page and provides methods to interact with it.

The following methods are supported with the Element object.

Method Description
getAttribute(name) Return an attribute value string of the element attribute (or return null if the specified attribute was not found).

Parameters:
name - (string) Attribute name.
getProperty(name) Return a property value string of the element property (or return null if the specified property was not found).

Parameters:
name - (string) Property name.
getText() Return a text value string of the element text.
click() Click on an element.
clear() Clear the content of an editable element.
sendKeys(keys) Send keys.

Parameters:
keys - (string) Keys to send.

The Cookie object is returned by the Browser object getCookies() method and passed to the addCookie() method.

While the Cookie object does not have any methods, it can contain the following properties:

Property Type Description
name string Name of the cookie.
value string Value of the cookie.
path string Path for which the cookie is valid.
Defaults to "/" if omitted when adding a cookie.
domain string Domain to which the cookie is visible.
Defaults to the URL domain of the session's current browsing context's active document if omitted when adding a cookie.
secure boolean Indicates whether the cookie is secure.
Defaults to false if omitted when adding a cookie.
httpOnly boolean Indicates whether the cookie is HTTP-only.
Defaults to false if omitted when adding a cookie.
expiry integer Expiration time of the cookie (in seconds since the Unix Epoch). Must not be set if omitted when adding a cookie.
sameSite string The sameSite attribute of the cookie, which controls whether the cookie should be restricted to a first-party or same-site context.
Can be set to either "Lax" or "Strict".
Defaults to "None" if omitted when adding a cookie.

Alert

The Alert object represents a web page alert, is returned by Browser object getAlert() method, and cannot be constructed directly.

The Alert object contains the text property with the alert text (or null if there are no alerts).

The following methods are supported with the Alert object.

Method Description
accept() Accept the alert.
dismiss() Dismiss the alert.

Result

The Result object contains session statistics and is returned by the Browser object getResult() method.

Typically, the Result object is stringified and returned from the script, and then parsed into dependent item values through preprocessing.

While the Result object does not have any methods, it can contain the following properties.

Property Type Description
duration string Session duration from session creation to result retrieval.
error object Error information.
http_status integer HTTP status returned by the WebDriver (or 0 if there are no WebDriver errors).
error_code string Error returned by the WebDriver (or empty string if there are no WebDriver errors).
message string WebDriver error message (or empty string if there are no WebDriver errors).
performance_data object Performance statistics.
summary object Performance summary.
navigation object Navigation summary.
resource object Resource summary.
details array of objects Performance statistics after each operation that could have resulted in navigation.
mark string (optional) Performance snapshot mark specified with the collectPerfEntries() method.
navigation object Navigation statistics.
resource object Resource summary for this step.
user array of objects Array of mark/measure type statistics.
marks array of objects Marked performance snapshot indexes.
name string Performance snapshot mark name.
index integer Performance snapshot index in details array.