@Test(expected = MacroExecutionException.class)
public void testRestrictedByContext() throws Exception {
VelocityMacroParameters params = new VelocityMacroParameters();
MacroTransformationContext context = new MacroTransformationContext();
context.setSyntax(Syntax.XWIKI_2_0);
context.setCurrentMacroBlock(
new MacroBlock("velocity", Collections.<String, String>emptyMap(), false));
context.setId("page1");
// Restrict the transformation context.
context.getTransformationContext().setRestricted(true);
when(authorizationManager.hasAccess(Right.SCRIPT)).thenReturn(true);
mocker
.getComponentUnderTest()
.execute(params, "#macro(testMacrosAreLocal)mymacro#end", context);
}
@Override
public void transform(Block rootBlock, TransformationContext context)
throws TransformationException {
// Create a macro execution context with all the information required for macros.
MacroTransformationContext macroContext = new MacroTransformationContext(context);
macroContext.setTransformation(this);
// Counter to prevent infinite recursion if a macro generates the same macro for example.
for (int recursions = 0; recursions < this.maxRecursions; ) {
// 1) Get highest priority macro
PriorityMacroBlockMatcher priorityMacroBlockMatcher =
new PriorityMacroBlockMatcher(context.getSyntax());
rootBlock.getFirstBlock(priorityMacroBlockMatcher, Block.Axes.DESCENDANT);
// 2) Apply macros lookup errors
if (priorityMacroBlockMatcher.errors != null) {
for (MacroLookupExceptionElement error : priorityMacroBlockMatcher.errors) {
if (error.exception instanceof MacroNotFoundException) {
// Macro cannot be found. Generate an error message instead of the macro execution
// result.
// TODO: make it internationalized
this.macroErrorManager.generateError(
error.macroBlock,
String.format("Unknown macro: %s.", error.macroBlock.getId()),
String.format(
"The \"%s\" macro is not in the list of registered macros. Verify the spelling or "
+ "contact your administrator.",
error.macroBlock.getId()));
this.logger.debug(
"Failed to locate the [{}] macro. Ignoring it.", error.macroBlock.getId());
} else {
// TODO: make it internationalized
this.macroErrorManager.generateError(
error.macroBlock,
String.format("Invalid macro: %s.", error.macroBlock.getId()),
error.exception);
this.logger.debug(
"Failed to instantiate the [{}] macro. Ignoring it.", error.macroBlock.getId());
}
}
}
MacroBlock macroBlock = priorityMacroBlockMatcher.block;
if (macroBlock == null) {
// Nothing left to do
return;
}
Macro<?> macro = priorityMacroBlockMatcher.blockMacro;
boolean incrementRecursions = macroBlock.getParent() instanceof MacroMarkerBlock;
List<Block> newBlocks;
try {
// 3) Verify if we're in macro inline mode and if the macro supports it. If not, send an
// error.
if (macroBlock.isInline()) {
macroContext.setInline(true);
if (!macro.supportsInlineMode()) {
// The macro doesn't support inline mode, raise a warning but continue.
// The macro will not be executed and we generate an error message instead of the macro
// execution result.
this.macroErrorManager.generateError(
macroBlock,
"This is a standalone macro only and it cannot be used inline",
"This macro generates standalone content. As a consequence you need to make sure to use a "
+ "syntax that separates your macro from the content before and after it so that it's on a "
+ "line by itself. For example in XWiki Syntax 2.0+ this means having 2 newline characters "
+ "(a.k.a line breaks) separating your macro from the content before and after it.");
this.logger.debug("The [{}] macro doesn't support inline mode.", macroBlock.getId());
continue;
}
} else {
macroContext.setInline(false);
}
// 4) Execute the highest priority macro
macroContext.setCurrentMacroBlock(macroBlock);
((MutableRenderingContext) this.renderingContext).setCurrentBlock(macroBlock);
// Populate and validate macro parameters.
Object macroParameters = macro.getDescriptor().getParametersBeanClass().newInstance();
try {
this.beanManager.populate(macroParameters, macroBlock.getParameters());
} catch (Throwable e) {
// One macro parameter was invalid.
// The macro will not be executed and we generate an error message instead of the macro
// execution result.
this.macroErrorManager.generateError(
macroBlock,
String.format(
"Invalid macro parameters used for the \"%s\" macro.", macroBlock.getId()),
e);
this.logger.debug(
"Invalid macro parameter for the [{}] macro. Internal error: [{}].",
macroBlock.getId(),
e.getMessage());
continue;
}
newBlocks = ((Macro) macro).execute(macroParameters, macroBlock.getContent(), macroContext);
} catch (Throwable e) {
// The Macro failed to execute.
// The macro will not be executed and we generate an error message instead of the macro
// execution result.
// Note: We catch any Exception because we want to never break the whole rendering.
this.macroErrorManager.generateError(
macroBlock, String.format("Failed to execute the [%s] macro.", macroBlock.getId()), e);
this.logger.debug(
"Failed to execute the [{}] macro. Internal error [{}].",
macroBlock.getId(),
e.getMessage());
continue;
} finally {
((MutableRenderingContext) this.renderingContext).setCurrentBlock(null);
}
// We wrap the blocks generated by the macro execution with MacroMarker blocks so that
// listeners/renderers
// who wish to know the group of blocks that makes up the executed macro can. For example this
// is useful for
// the XWiki Syntax renderer so that it can reconstruct the macros from the transformed XDOM.
Block resultBlock = wrapInMacroMarker(macroBlock, newBlocks);
// 5) Replace the MacroBlock by the Blocks generated by the execution of the Macro
macroBlock.getParent().replaceChild(resultBlock, macroBlock);
if (incrementRecursions) {
++recursions;
}
}
}
