Systems, apparatus, and methods for mobile device detection

摘要

Systems and methods are disclosed for detecting mobile devices. In one implementation, a system includes a web server. The web server receives mobile device detection strings from a DNS server in response to a DNS request and stores the mobile device detection strings on the server. The web server uses the mobile device detection strings to determine if a client device making a request to the web server is a mobile device. The web server may determine if the client device is a mobile device by comparing a user agent string in the request to the mobile device detection strings. The web server may determine whether the client device is a mobile device before sending the client device's request to any server-side scripts stored at the web server.

主权项

1. A computer-implemented method of detecting mobile devices performed by a web server, the method comprising:
sending a domain name service (DNS) request to a DNS server for one or more mobile device detection strings; receiving a DNS response from the DNS server in response to the DNS request, the DNS response including the one or more mobile device detection strings; storing the mobile device detection strings included in the DNS response into memory; receiving a hyper text transfer protocol (HTTP) request from a client device for a resource specified, at least in part, by a domain name; determining, before initiating any associated script to process the HTTP request, whether the client device is a mobile device by comparing a characteristic of the client device to one or more of the mobile device detection strings received from the DNS server, wherein determining whether the client device is a mobile device comprises:
comparing a User-Agent header in the HTTP request to one or more of the mobile device detection strings,determining that the client device is a mobile device if the User-Agent header matches one or more of the mobile device detection strings, andexecuting one or more modules in a web server application processing the HTTP request to determine whether the client is a mobile device before the HTTP request is forwarded to any server-side scripts; modifying the HTTP request received from the client device to include header information indicating that client is a mobile device; and forwarding the modified HTTP request to server-side scripts associated with servicing the resource.