Commit graph

15 commits

Author SHA1 Message Date
Tim Starling c9c0aa6fce Peak memory usage, debug.traceback
* Use LuaSandbox::getPeakMemoryUsage() from r115086
* Fixed the debug.traceback function from da06273e, was nil

Change-Id: Iae4b195ffe25a522d4c37f9c8341e1d6ea3ae106
2012-04-30 16:37:41 +10:00
Tim Starling 35cc7c4630 Added CPU usage to limit report
Also changed scribunto-lua-in-function-at to not say "anonymous" since
it also applies to functions which are not anonymous as declared, only
anonymous as called.

Change-Id: Ib99cc6d12fbb40a295e1fda35ac48bcf097fdb66
2012-04-30 16:37:41 +10:00
Tim Starling fa6dd44957 LuaSandbox backtraces
* Updates for the LuaSandbox backtrace feature introduced in r115020.
* Fixed a notice in the case where the backtrace is not available
* Implemented error message parsing for file/line as in LuaStandalone

Change-Id: Ie1e053784e174aa53ebf5a1fa782d3cf6243c3f0
2012-04-24 20:40:40 +10:00
Tim Starling da06273ede Nicer errors with backtraces etc.
* Added error backtrace collection to MWServer:handleCall()
* When there is an error on parse, show a short and simple inline error
  message to the user, which when clicked, expands to a full error with
  HTML-formatted backtrace.
* When an error is encountered during module validation, have the code
  editor jump directly to the line. Requires r115011.
* Expose the code location of most errors to Scribunto, by parsing the
  standard error message format.
* During module validation, abbreviate the error location if the error
  is in the same module.
* Do not execute the module during validation, just parse it. Execution
  does not really work without an active parse operation in progress.
  It already caused a fatal error if you called require() from the main
  chunk, and problems would have become more visible as more
  parser-related APIs were added.
* LuaSandbox does not yet provide backtraces, but this is planned.

Change-Id: Id9f6564a41b310792b3fe3ebb527cbf8f8771bd1
2012-04-23 21:58:30 +10:00
tstarling b68cae904a More tests and some related bug fixes
* Added tests for the engine classes.
* Added some tests that run under Lua.
* In the chunk names, fixed truncation of module names at 60 bytes
  by using an "=" prefix instead of @.
* Fixed a bug in mw.clone() which was causing the metatable to be set on
  the source table instead of the destination.
* Put restricted setfenv/getfenv in the cloned environment rather than
  the base environment, they work better that way.
* In setfenv(), check for getfenv() == nil, since that's what our own
  restricted getfenv returns.
* Fixed getfenv() handling of numeric arguments: add one where
  appropriate.

Change-Id: I2b356fd65a3fcb348c4e99a3a4267408fb995739
2012-04-19 17:48:20 +10:00
tstarling b0f00103e2 Added tests and fixed bugs
* Added unit tests for the two Lua interpreter classes
* Fixed a bug in checkType()
* Have Scribunto_LuaSandboxInterpreter throw an exception on construct
  when the extension doesn't exist, to match the standalone behaviour.
* In Scribunto_LuaSandboxInterpreter, removed debugging statements
  accidentally left in.
* Convert LuaSandboxTimeoutError to the appropriate common error
  message.
* Moved the option munging from the sandbox engine to the interpreter,
  so that the interpreter can be unit tested separately.
* Use /bin/sh instead of bash for lua_ulimit.sh, since dash is smaller
  and still supports ulimit.
* Use exec to run the lua binary, so that the vsize of the shell doesn't
  add to the memory limit.
* Added a quit function to the standalone interpreter. Unused at present.
* Don't add a comma after the last element of a table in a Lua
  expression.
* Make the SIGXCPU detection work: proc_open() runs the command via a
  shell, which reports signals in the child via the exit status, so
  proc_get_status() will never return a valid termsig element.
* In MWServer:call(), fixed a bug causing the return values to be
  wrapped in an array.
* Fixed a misunderstanding of what select() does.
* In MWServer:getStatus(), fixed indexes so that vsize will be correct.
  Removed RSS, since it wasn't used anyway and turns out to be measured
  in multiples of the page size, and I couldn't be bothered trying to
  fetch that from getconf. Return the PID and vsize as numbers rather
  than strings.
* Added a simple table dump feature to MWServer:debug().
* Fixed brackets in MWServer:tostring().
* Added missing Linux 32-bit binary.

Change-Id: Ibf5f4656b1c0a9f81287d363184c3fe9d2abdafd
2012-04-16 14:41:08 +10:00
tstarling 54cedd69b8 Introduced standalone interpreter, implemented module isolation
* Introduced a Lua implementation based on shelling out to a standard Lua binary.
* Bundled several Lua binaries for common platforms. I haven't added a 32-bit Linux binary yet, but that will come.
* Refactored the existing Lua class, bringing out functionality common to all Lua implementations into a set of common base classes.
* Moved the bulk of the implementation-specific functionality into a set of "interpreter" classes.
* Renamed LuaSandboxEngine to Scribunto_LuaSandboxEngine
* Don't create an engine object unconditionally when the ParserLimitReport hook is called.
* Implemented isolation of module global variable namespaces. This means that separate {{#invoke}} calls can't pass data to each other -- this was a desired feature in planning since it allows more flexibility in wikitext parser design. Isolation for mw.import() means that modules cannot accidentally create global variables which affect other modules -- exports are solely via the return value.

Change-Id: I3fa35651fe5b1fbfd85adeadc220b1ea31cd6f0b
2012-04-13 20:45:26 +10:00
Tim Starling 30622e86fe More changes for extension rename 2012-04-06 05:04:30 +00:00
Tim Starling 925045a669 * Removed scriptlinks table. It just seemed the same as templatelinks to me, and tl_namespace can be used if you want to separate out modules.
* Used Parser::fetchTemplateAndTitle() to get modules and register them in templatelinks. Most of the logic was previously duplicated.
* Changed the configuration and factory functions to allow for the possibility of multiple engines coexisting on the one wiki.
* Made the $parser parameter optional, to improve debugging in the case where a parser is needed but parsing has not started. Removed all $wgParser references.
* Renamed Scripting::getEngine() to getParserEngine() and resetEngine() to resetParserEngine()
* Removed setOptions() and updateOptions(). If you want to change the options, you can always make a new instance.
* Renamed getModule() to fetchModuleFromParser()
* Simplified module constructor parameters and member variable list
* Fixed spelling error langauge -> language
* Renamed a few variables for clarity: $module -> $moduleName, $function -> $functionName
* Renamed getLimitsReport() to getLimitReport() as it is in Parser
* Use an accessor for getting LuaSandboxEngineModule::$contents
* Renamed configuration variable maxCPU to cpuLimit
* Include the full message name as a parameter to ScriptingException. This makes it easier to find messages in the i18n file, and it makes it easier to find invocation points when a translator wants to know how a message is used. Adding the message name as a comment on the same line seems like a waste of space when you can just make it an actual parameter.
* Reduce the number of formal parameters to ScriptingException::__construct(), since there is already too many and we may want to add more things later, such as backtraces with hyperlinks and other such stuff.
* Include the code location as $2 unconditionally so that there is less chance of getting the parameters wrong
* Shortened some message names. Wrote English text for messages without it.
2012-04-05 07:58:02 +00:00
Tim Starling 64474eb0fa * Remove old-fashioned "m" prefix from member variables
* Make ScriptingEngineBase::getDefaultOptions() non-abstract since there is a reasonable default behaviour which can be implemented
2012-04-05 03:53:05 +00:00
Tim Starling c8f4d0a213 First-pass cleanup:
* Removed ScriptingEngineBase::load(), inappropriate interface specification, only used by child classes and more properly defined by them
* Fixed inappropriate use of final
* Fixed case of a class constant to conform with MediaWiki conventions
* Use a factory function interface for module creation instead of a class name accessor
* Don't pass unnecessary $engine parameter to ScriptingFunctionBase::__construct(). Pass parent object as the first parameter per convention.
* Fixed unnecessary reference parameter in doRunHook()
* Have LuaSandboxEngineFunction::call() return the first result or null, per the base class documentation, instead of imploding. 
* Use strval() to avoid a warning in case call() returns an array or object
* Improved some comments
2012-04-04 06:10:32 +00:00
Tim Starling be72db112a * Added missing message scripting-exception-common-toofewargs
* In importModule(), don't catch exceptions since that luasandbox bug is fixed now
* Use the chunkName parameter to loadString to get more informative error messages
2012-04-04 05:10:47 +00:00
vvv 03bf6ce779 Add integration with CodeEditor extension. 2012-02-06 22:14:47 +00:00
Sam Reed fa2dd80ead Use get accessors
Add/Improve documentation

Remove trailing whitespace
2012-01-28 16:46:15 +00:00
vvv b960075a55 Commiting the initial revision of the Scripting extension, a framework that allows programming languages to be embedded regardless of what are those languages actually are and how they are interpreted.
This is a very raw version, and it misses most messages (even in English!) and probably needs some more work.
2012-01-28 16:22:18 +00:00