Select the default command Parent Command.
Select the default script type Exit Command. Select the CAPTCHA image in the web browser. This command will skip CAPTCHA processing if the CAPTCHA image doesn't exist in the web page. Add an Execute Script command to the group. This group of commands will handle CAPTCHA.Ģ. See the section below for two examples of CAPTCHA recognition services.įollow these steps to configure an agent for automatic CAPTCHA processing:ġ. NET API and you must add an OCR script that uses this API to call the service. The third party recognition service must provide a. Important: Manual CAPTCHA processing relies on a human user to decode the CAPTCHA image, so an agent using manual CAPTCHA configuration cannot be run from the scheduler or API, or any other fully automated way.Īutomatic CAPTCHA processing requires an account with a third party CAPTCHA recognition service. You must add this command to all locations in the agent where CAPTCHA blocking could be encountered. This command will pause the agent when the CAPTCHA image element exists on the web page, and allow a user to enter the CAPTCHA text. This sets the command's web selection.ģ.Select the default script type Pause Agent.Ĥ.Select the default script condition If Selection Exists. In this case you should let the agent submit the form automatically rather than relying on the user to submit the form while the agent is paused.įollow these steps to pause an agent when a CAPTCHA image is displayed:ġ.Add an Execute Script command to your agent.Ģ.Select the CAPTCHA image element in the web browser. If CAPTCHA blocking is part of a larger registration form, you can process the CAPTCHA part manually and let the agent process the rest of the form automatically. You can configure the agent to automatically submit the web form after the user has entered the CAPTCHA text, or you can reply on the user to submit the form while the agent is paused. The agent will pause and display the browser window where a user can view the CAPTCHA image and enter the CAPTCHA text in the text box. Manual CAPTCHA processing is easy to configure, but requires you to manually decode CAPTCHA images while the agent is running. The other option uses the same approach as automatic CAPTCHA configuration, but instead of using a script to resolve the CAPTCHA, a window is displayed allowing the user to manually resolve the CAPTCHA.
The easiest one to configure is the option we describe below. You have two options when configuring manual CAPTCHA. Manual data extraction is free, but requires you to manually decode CAPTCHA images while running a data extraction agent. Automatic data extraction requires an account with a third-party CAPTCHA recognition service and, typically, there is a small fee for processing each CAPTCHA image.
A typical registration form with CAPTCHA blockingĬontent Grabber performs both manual and automatic data extraction from websites that implement CAPTCHA blocking.
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