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Introduction
WebUI is a graphical user interface that is available to the connected devices. It acts as an application running on the RDK-B stack and performs the functions of a device management interface similar to TR69 & SNMP. A user can monitor and modify RDK-B feature settings/rules using WebUI. It is a client–server application, client runs in a web browser (as part of devices connected over LAN) and Lighttpd on the RDK-B stack acts as server. The functions in WebUI are defined in C and are called from PHP using ZEND_API. PHP and the Zend Engine manage [exchange] variables internally over the D-Bus.
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This is the architecture of WebUI component.
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Flow diagram for getStr(Obj):
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Flow diagram for setStr(Obj, Value, Flag):
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Note: The name Zend refers to the language engine [ PHP's core ]
Features
Gateway
At a Glance, Email Notification, Connection Status, Local IP Network, Wi-Fi, MTA, MoCA, Firewall IPv4 / IPv6, Software, Hardware, etc.
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Connected Devices
Connected Devices and Range Extenders
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Parental Control
Managed Sites, Managed Services, Managed Devices and Reports
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Advanced
Port Forwarding, Port Triggering, Remote Management, DMZ, etc.Device Discovery.
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Troubleshooting
Troubleshooting Logs, Diagnostic Tools, Wi-Fi Spectrum Analyzer, MoCA Diagnostics, Reset/Restore Gateway, Change Password, etc.
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Note: Only MSO has access to monitor / modify Email Notification (Gateway -> At a Glance, Wi-Fi Home Security and Community Wi-Fi
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Code Flow
WebUI on the Device:
- “/etc/webgui.sh” will modify “/etc/lighttpd.conf” on runtime and create “/tmp/lighttpd.conf”
- Command to run lighttpd is “lighttpd –f /tmp/lighttpd.conf”
- “cosa.so” is linked as an extension to “php” in “/etc/php.ini”
- document-root = “/usr/www/”
- Inside “/usr/www/” we have,
- actionHandler folderhandles PHP SET actions
- cmn folder has css, fonts, img and js [Styling & JS Lib]
- includes folder has header.php, footer.php. nav.php, userbar.php and utility.php
WebUI on RDK-B Yocto Repo
- On RDK-B, Web UI source code resides in the path –
code.rdkcentral.com/rdkb/components/opensource/ccsp/webui/generic/source/Styles/xb3/code
- During build time “code” folder is moved to “/usr/www/”
- On yocto for build we can have specific target and what to build
$ repo init -u https://code.rdkcentral.com/r/manifests -b rdk-next -m rdkb-extsrc.xml
$ repo sync -j4 --no-clone-bundle
$ source meta-cmf-raspberrypi/setup-environment (Select option raspberrypi-rdk-broadband.conf)
$ bitbake rdk-generic-broadband-image
$ bitbake –c compile –f lighttpd
$ bitbake –c compile –f ccsp-webui
For details on WebUI Migration to jst, go to WebUI Migration to jstNote: The name Zend refers to the language engine [ PHP's core ]