/** Dumps messages to the given output stream, returning the highest message level seen. */
static MessageLevel dumpMessages(MessageQueue mq, MessageContext mc, Appendable out) {
MessageLevel maxLevel = MessageLevel.values()[0];
for (Message m : mq.getMessages()) {
MessageLevel level = m.getMessageLevel();
if (maxLevel.compareTo(level) < 0) {
maxLevel = level;
}
}
MessageLevel ignoreLevel = null;
if (maxLevel.compareTo(MessageLevel.LINT) < 0) {
// If there's only checkpoints, be quiet.
ignoreLevel = MessageLevel.LOG;
}
try {
for (Message m : mq.getMessages()) {
MessageLevel level = m.getMessageLevel();
if (ignoreLevel != null && level.compareTo(ignoreLevel) <= 0) {
continue;
}
out.append(level.name() + ": ");
m.format(mc, out);
out.append("\n");
if (maxLevel.compareTo(level) < 0) {
maxLevel = level;
}
}
} catch (IOException ex) {
ex.printStackTrace();
}
return maxLevel;
}
/**
* @param containingHtmlElement the name of the HTML element containing el. If the HTML element is
* contained inside a template construct then this name may differ from el's immediate parent.
*/
private void inspectElement(JobEnvelope source, Element el, ElKey containingHtmlElement) {
ElKey elKey = ElKey.forElement(el);
// Recurse early so that ihtml:dynamic elements have been parsed before we
// process the attributes element list.
for (Node child : Nodes.childrenOf(el)) {
inspect(source, child, elKey);
}
// For each attribute allowed on this element type, ensure that
// (1) If it is not specified, and its default value is not allowed, then
// it is added with a known safe value.
// (2) Its value is rewritten as appropriate.
// We don't have to worry about disallowed attributes since those will
// not be present in scriptsPerNode. The TemplateSanitizer should have
// stripped those out. The TemplateSanitizer should also have stripped out
// disallowed elements.
if (!htmlSchema.isElementAllowed(elKey)) {
return;
}
HTML.Element elInfo = htmlSchema.lookupElement(elKey);
List<HTML.Attribute> attrs = elInfo.getAttributes();
if (attrs != null) {
for (HTML.Attribute a : attrs) {
AttribKey attrKey = a.getKey();
if (!htmlSchema.isAttributeAllowed(attrKey)) {
continue;
}
Attr attr = null;
String aUri = attrKey.ns.uri;
String aName = attrKey.localName;
Attr unsafe = el.getAttributeNodeNS(aUri, aName);
if (unsafe != null && a.getValueCriterion().accept(unsafe.getValue())) {
attr = unsafe;
} else if ((a.getDefaultValue() != null
&& !a.getValueCriterion().accept(a.getDefaultValue()))
|| !a.isOptional()) {
attr = el.getOwnerDocument().createAttributeNS(aUri, aName);
String safeValue;
if (a.getType() == HTML.Attribute.Type.URI) {
safeValue = "" + Nodes.getFilePositionFor(el).source().getUri();
} else {
safeValue = a.getSafeValue();
}
if (safeValue == null) {
mq.addMessage(
IhtmlMessageType.MISSING_ATTRIB, Nodes.getFilePositionFor(el), elKey, attrKey);
continue;
}
attr.setNodeValue(safeValue);
el.setAttributeNodeNS(attr);
}
if (attr != null) {
inspectHtmlAttribute(source, attr, a);
}
}
}
scriptsPerNode.put(el, null);
}
/**
* Examines the HTML document and writes messages about problematic portions to the message queue
* passed to the constructor.
*/
private void inspect() {
if (!mq.hasMessageAtLevel(MessageLevel.FATAL_ERROR)) {
for (IhtmlRoot ihtmlRoot : ihtmlRoots) {
HtmlEmbeddedContentFinder finder =
new HtmlEmbeddedContentFinder(htmlSchema, ihtmlRoot.baseUri, mq, mc);
for (EmbeddedContent c : finder.findEmbeddedContent(ihtmlRoot.root)) {
Node src = c.getSource();
if (src instanceof Attr) {
embeddedContent.put((Attr) src, c);
}
}
inspect(ihtmlRoot.source, ihtmlRoot.root, ElKey.forHtmlElement("div"));
}
}
}
private boolean parseInputs(Collection<URI> inputs, PluginCompiler pluginc) {
boolean parsePassed = true;
for (URI input : inputs) {
try {
ParseTreeNode parseTree = parseInput(input);
if (null != parseTree) {
pluginc.addInput(new AncestorChain<ParseTreeNode>(parseTree));
}
} catch (ParseException ex) {
ex.toMessageQueue(mq);
parsePassed = false;
} catch (IOException ex) {
mq.addMessage(MessageType.IO_ERROR, MessagePart.Factory.valueOf(ex.toString()));
parsePassed = false;
}
}
return parsePassed;
}
private void produce() throws ParseException {
if (null != pending) {
return;
}
if (cp.isEmpty()) {
return;
}
char[] buf = cp.getBuffer();
final int start = cp.getOffset();
int limit = cp.getLimit();
int end = start + 1;
CssTokenType type;
char ch = buf[start];
int identEnd;
if (CssLexer.isSpaceChar(ch)) {
// [ \t\r\n\f]+ S
end = parseWhitespace(buf, end, limit);
type = CssTokenType.SPACE;
} else if (ch == '/') {
if (end < limit && buf[end] == '*') {
// \/\*[^*]*\*+([^/*][^*]*\*+)*\/ /* ignore comments */
int state = 0; // 0 - start, 1 - in comment, 2 - saw, 3 - done
do {
if (end == limit) {
break;
}
ch = buf[end];
switch (state) {
case 0:
state = 1;
break;
case 1:
if (ch == '*') {
state = 2;
}
break;
case 2:
if (ch == '/') {
state = 3;
} else if (ch != '*') {
state = 1;
}
break;
}
++end;
} while (state != 3);
if (state != 3) {
throw new ParseException(
new Message(
MessageType.UNTERMINATED_COMMENT_TOKEN, cp.filePositionForOffsets(start, end)));
}
type = CssTokenType.COMMENT;
} else if (end < limit && buf[end] == '/') {
do {
if (++end == limit) {
break;
}
ch = buf[end];
// Line comment does not contain the newline character that ends it
// since we don't want to break \r\n sequences across two tokens,
// and for consistency with JavaScript conventions which exclude the
// newline from the line comment token.
if (ch == '\r' || ch == '\n') {
break;
}
} while (true);
type = CssTokenType.COMMENT;
FilePosition commentPos = cp.filePositionForOffsets(start, end);
mq.addMessage(MessageType.INVALID_CSS_COMMENT, commentPos);
} else {
// *yytext
type = CssTokenType.PUNCTUATION;
}
} else if ('~' == ch || '|' == ch) {
if (end < limit && '=' == buf[end]) {
// "~=" INCLUDES
// "|=" DASHMATCH
++end;
} else {
// . *yytext
}
type = CssTokenType.PUNCTUATION;
} else if (ch == '\'' || ch == '"') {
end = parseString(cp, start);
type = CssTokenType.STRING;
} else if (ch == '@') {
identEnd = parseIdent(cp, end);
if (identEnd != -1) {
// "@import" IMPORT_SYM
// "@page" PAGE_SYM
// "@media" MEDIA_SYM
// "@font-face" FONT_FACE_SYM
// "@charset " CHARSET_SYM
// "@"{ident} ATKEYWORD
type = CssTokenType.SYMBOL;
end = identEnd;
// In http://www.w3.org/TR/CSS21/grammar.html, the CHARSET_SYM is
// allowed to match only "@charset "
if ((end - start) == 8 && parseMatch(cp, start, "@charset ") > 0) {
++end;
}
} else {
// . *yytext
type = CssTokenType.PUNCTUATION;
}
} else if (ch == '!') {
// "!{w}important" IMPORTANT_SYM
// handled by token joining at a later pass
// . *yytext
type = CssTokenType.PUNCTUATION;
} else if (ch == '#') {
int nameEnd = parseName(cp, end);
if (nameEnd >= 0) {
// "#"{name} HASH
type = CssTokenType.HASH;
end = nameEnd;
} else {
// . *yytext
type = CssTokenType.PUNCTUATION;
}
} else if (ch == '<' || ch == '-') {
// "<!--" CDO
// "-->" CDC
int tailEnd = parseMatch(cp, end, ch == '<' ? "!--" : "->");
if (tailEnd >= 0) {
end = tailEnd;
}
type = CssTokenType.PUNCTUATION;
} else if ((ch >= '0' && ch <= '9') || '.' == ch) {
// {num}em EMS
// {num}ex EXS
// {num}px LENGTH
// {num}cm LENGTH
// {num}mm LENGTH
// {num}in LENGTH
// {num}pt LENGTH
// {num}pc LENGTH
// {num}deg ANGLE
// {num}rad ANGLE
// {num}grad ANGLE
// {num}ms TIME
// {num}s TIME
// {num}Hz FREQ
// {num}kHz FREQ
// {num}{ident} DIMEN
// {num}% PERCENTAGE
// {num} NUMBER
boolean isNum;
if ('.' == ch) {
int numEnd = parseInt(cp, end);
isNum = numEnd >= 0;
if (isNum) {
end = numEnd;
}
} else {
isNum = true;
end = parseNum(cp, start);
}
if (isNum) {
identEnd = parseIdent(cp, end);
if (identEnd >= 0) {
end = identEnd;
} else if (end < limit && '%' == buf[end]) {
++end;
}
type = CssTokenType.QUANTITY;
} else {
// lone .
// . *yytext
type = CssTokenType.PUNCTUATION;
}
} else if ((identEnd = parseIdent(cp, start)) >= 0) {
end = identEnd;
if (end - start == 1 && 'U' == ch && end < limit && '+' == buf[end]) {
// U\+{range} UNICODERANGE
// U\+{h}{1,6}-{h}{1,6} UNICODERANGE
// range \?{1,6}|{h}(\?{0,5}|{h}(\?{0,4}|{h}\
// (\?{0,3}|{h}(\?{0,2}|{h}(\??|{h})))))
type = CssTokenType.UNICODE_RANGE;
++end;
end = parseRange(cp, end);
} else if (end < limit && '(' == buf[end]) {
++end;
if (end - start == 4 && parseMatch(cp, start, "url(") >= 0) {
// "url("{w}{string}{w}")" URI
// "url("{w}{url}{w}")" URI
end = parseWhitespace(buf, end, limit);
int stringEnd = parseString(cp, end);
int uriEnd = stringEnd < 0 ? parseUri(cp, end) : -1;
if (stringEnd < 0 && uriEnd < 0) {
throw new ParseException(
new Message(
MessageType.EXPECTED_TOKEN,
cp.filePositionForOffsets(end, end),
MessagePart.Factory.valueOf("{url}"),
toMessagePart(cp, end)));
}
end = stringEnd >= 0 ? stringEnd : uriEnd;
end = parseWhitespace(buf, end, limit);
if (end == limit || ')' != buf[end]) {
throw new ParseException(
new Message(
MessageType.EXPECTED_TOKEN,
cp.filePositionForOffsets(end, end),
MessagePart.Factory.valueOf(")"),
toMessagePart(cp, end)));
}
++end;
type = CssTokenType.URI;
} else {
// {ident}"(" FUNCTION
type = CssTokenType.FUNCTION;
}
} else {
// {ident} IDENT
type = CssTokenType.IDENT;
}
} else if (ch == '$' && allowSubstitutions) {
// ${<javascript tokens>}
if (end < limit && buf[end] != '{') {
type = CssTokenType.PUNCTUATION;
} else {
// 0 - non string
// 1 - quoted string
// 2 - saw \ in string
// 3 - saw close paren
int state = 0;
// number of parenthetical blocks entered and not exited
int nOpen = 0;
char delim = 0;
do {
if (end == limit) {
break;
}
ch = buf[end];
switch (state) {
case 0:
if (ch == '"' || ch == '\'') {
delim = ch;
state = 1;
} else if (ch == '{') {
++nOpen;
} else if (ch == '}') {
if (--nOpen == 0) {
state = 3;
}
}
break;
case 1:
if (ch == delim) {
state = 0;
} else if (ch == '\\') {
state = 2;
}
break;
case 2:
state = 1;
break;
}
++end;
} while (state != 3);
if (state != 3) {
throw new ParseException(
new Message(
MessageType.UNTERMINATED_STRING_TOKEN, cp.filePositionForOffsets(start, end)));
}
identEnd = parseIdent(cp, end);
if (identEnd >= 0) {
end = identEnd;
} else if (end != limit && '%' == buf[end]) {
++end;
}
type = CssTokenType.SUBSTITUTION;
}
} else {
// . *yytext
type = CssTokenType.PUNCTUATION;
}
assert end > start;
pending = Token.instance(cp.toString(start, end), type, cp.filePositionForOffsets(start, end));
cp.consumeTo(end);
}
