Yhc web service
Revision as of 03:48, 8 March 2008
|Part of Yhc|
Yhc Web Service
The service is currently available at the following URL: http://www.golubovsky.org:5984/static/yhcws/MainGUI.html
3 Technical overview
The service runs a slightly modified version of SearchPath to chase imports across the Internet. This removes the limitation on the number of modules compiled simultaneously, while only one Haskell module may be submitted via user interface.
The Service runs under Linux inside a 32-bit virtual machine which is an instance of KVM administered by KVMADM on a 64-bit Linux host. Since CouchDB currently lacks any access control to its databases, Squid is used as reverse proxy with proper access control settings.
4 Users guide
4.1 User interface
Initially, the Service displays the following form in the web browser window. Each row of the form corresponds to a single pastebin entry. The links column contains icons that correspond to possible user actions that can be performed over each document. The author column identifies the submitter (author name is arbitrary: the Service does not authrnticate users). The time column shows the submission time (UTC). The title column shows the title that author gave to the entry. The status column shows whether the code submitted with the entry is being comipled, or that compilation was successful, or it failed.
The view Haskell source icon is always present regardless of current status of an entry. Clicking on it shows the source code submitted with the entry. Clicking on the Close button restores the document browser.
The view compilation log and view error log icons when clicked, show either the compilation log, or error log depending on success or failure of compilation. These icons appear only after compilation is complete (successful or failed). Similarly, the Close button restores the document browser.
Clicking on the edit icon opens the new entry form with the source of the corresponding entry. Thus, source code may be edited and resubmitted. The service does not keep track of source code revisions: each time source is edited, it is submitted as a new entry. This icon is always present with each entry.