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added iso,apk,dmg to extension-deny list

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see also https://github.com/yacy/yacy_search_server/issues/510
zip is not on the list because it can be parsed
This commit is contained in:
Michael Peter Christen 2022-10-05 16:28:50 +02:00
parent 761dbdf06d
commit d49f937b98
2 changed files with 237 additions and 237 deletions
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2
defaults/yacy.init
View File

@ -328,7 +328,7 @@ releases = DATA/RELEASE
# the following mime-types are a blacklist for indexing:
# parser.mime.deny: specifies mime-types that shall not be indexed
parser.mime.deny=
parser.extensions.deny=
parser.extensions.deny=iso,apk,dmg
# The audioTagParser is disabled by default as it needs to create a temporary file each time an audio resource is parsed
# Audio file extensions and media types can be enabled in the ConfigParser_p.html page if this is not a problem with your install
parser.enableAudioTags=false

472
source/net/yacy/document/TextParser.java
View File

@ -80,16 +80,16 @@ public final class TextParser {
private static final Object v = new Object();
private static final Parser genericIdiom = new genericParser();
/** A generic XML parser instance */
private static final Parser genericXMLIdiom = new GenericXMLParser();
//use LinkedHashSet for parser collection to use (init) order to prefered parser for same ext or mime
private static final Map<String, LinkedHashSet<Parser>> mime2parser = new ConcurrentHashMap<String, LinkedHashSet<Parser>>();
private static final ConcurrentHashMap<String, LinkedHashSet<Parser>> ext2parser = new ConcurrentHashMap<String, LinkedHashSet<Parser>>();
private static final Map<String, String> ext2mime = new ConcurrentHashMap<String, String>();
private static final Map<String, Object> denyMime = new ConcurrentHashMap<String, Object>();
private static final Map<String, Object> denyExtensionx = new ConcurrentHashMap<String, Object>();
private static final Map<String, LinkedHashSet<Parser>> mime2parser = new ConcurrentHashMap<>();
private static final ConcurrentHashMap<String, LinkedHashSet<Parser>> ext2parser = new ConcurrentHashMap<>();
private static final Map<String, String> ext2mime = new ConcurrentHashMap<>();
private static final Map<String, Object> denyMime = new ConcurrentHashMap<>();
private static final Map<String, Object> denyExtensionx = new ConcurrentHashMap<>();
static {
initParser(new apkParser());
@ -130,19 +130,19 @@ public final class TextParser {
}
public static Set<Parser> parsers() {
final Set<Parser> c = new HashSet<Parser>();
for (Set<Parser> pl: ext2parser.values()) c.addAll(pl);
for (Set<Parser> pl: mime2parser.values()) c.addAll(pl);
final Set<Parser> c = new HashSet<>();
for (final Set<Parser> pl: ext2parser.values()) c.addAll(pl);
for (final Set<Parser> pl: mime2parser.values()) c.addAll(pl);
return c;
}
/**
* @return the set of all supported mime types
*/
public static Set<String> supportedMimeTypes() {
final Set<String> mimeTypes = new HashSet<>();
mimeTypes.addAll(mime2parser.keySet());
return mimeTypes;
final Set<String> mimeTypes = new HashSet<>();
mimeTypes.addAll(mime2parser.keySet());
return mimeTypes;
}
private static void initParser(final Parser parser) {
@ -153,7 +153,7 @@ public final class TextParser {
if (prototypeMime == null) prototypeMime = mimeType;
LinkedHashSet<Parser> p0 = mime2parser.get(mimeType);
if (p0 == null) {
p0 = new LinkedHashSet<Parser>();
p0 = new LinkedHashSet<>();
mime2parser.put(mimeType, p0);
}
p0.add(parser);
@ -172,7 +172,7 @@ public final class TextParser {
ext = ext.toLowerCase(Locale.ROOT);
LinkedHashSet<Parser> p0 = ext2parser.get(ext);
if (p0 == null) {
p0 = new LinkedHashSet<Parser>();
p0 = new LinkedHashSet<>();
ext2parser.put(ext, p0);
}
p0.add(parser);
@ -189,7 +189,7 @@ public final class TextParser {
final int timezoneOffset,
final int depth,
final File sourceFile
) throws InterruptedException, Parser.Failure {
) throws InterruptedException, Parser.Failure {
BufferedInputStream sourceStream = null;
Document[] docs = null;
@ -223,7 +223,7 @@ public final class TextParser {
final int timezoneOffset,
final int depth,
final byte[] content
) throws Parser.Failure {
) throws Parser.Failure {
if (AbstractParser.log.isFine()) AbstractParser.log.fine("Parsing '" + location + "' from byte-array");
mimeType = normalizeMimeType(mimeType);
Set<Parser> idioms = null;
@ -236,11 +236,11 @@ public final class TextParser {
}
assert !idioms.isEmpty() : "no parsers applied for url " + location.toNormalform(true);
Document[] docs = parseSource(location, mimeType, idioms, charset, ignore_class_name, scraper, timezoneOffset, depth, content, Integer.MAX_VALUE, Long.MAX_VALUE);
final Document[] docs = parseSource(location, mimeType, idioms, charset, ignore_class_name, scraper, timezoneOffset, depth, content, Integer.MAX_VALUE, Long.MAX_VALUE);
return docs;
}
/**
* Apply only the generic parser to the given content from location.
*/
@ -253,17 +253,17 @@ public final class TextParser {
final int timezoneOffset,
final int depth,
final byte[] content
) throws Parser.Failure {
) throws Parser.Failure {
if (AbstractParser.log.isFine()) {
AbstractParser.log.fine("Parsing '" + location + "' from byte-array, applying only the generic parser");
AbstractParser.log.fine("Parsing '" + location + "' from byte-array, applying only the generic parser");
}
mimeType = normalizeMimeType(mimeType);
Set<Parser> idioms = new HashSet<>();
final Set<Parser> idioms = new HashSet<>();
idioms.add(TextParser.genericIdiom);
return parseSource(location, mimeType, idioms, charset, ignoreClassNames, scraper, timezoneOffset, depth, content, Integer.MAX_VALUE, Long.MAX_VALUE);
}
private static Document[] parseSource(
final DigestURL location,
String mimeType,
@ -276,7 +276,7 @@ public final class TextParser {
final InputStream sourceStream,
final int maxLinks,
final long maxBytes
) throws Parser.Failure {
) throws Parser.Failure {
if (AbstractParser.log.isFine()) AbstractParser.log.fine("Parsing '" + location + "' from stream");
mimeType = normalizeMimeType(mimeType);
Set<Parser> idioms = null;
@ -291,126 +291,126 @@ public final class TextParser {
boolean canStream = false;
if(idioms.size() == 1) {
canStream = true;
canStream = true;
} else if(idioms.size() == 2) {
/* When there are only 2 available parsers, stream oriented parsing can still be applied when one of the 2 parsers is the generic one */
for(Parser idiom : idioms) {
if(idiom instanceof genericParser) {
canStream = true;
}
}
/* When there are only 2 available parsers, stream oriented parsing can still be applied when one of the 2 parsers is the generic one */
for(final Parser idiom : idioms) {
if(idiom instanceof genericParser) {
canStream = true;
}
}
} else if(sourceStream instanceof ByteArrayInputStream) {
/* Also check if we have a ByteArrayInputStream as source to prevent useless bytes duplication in a new byte array */
canStream = true;
/* Also check if we have a ByteArrayInputStream as source to prevent useless bytes duplication in a new byte array */
canStream = true;
}
// if we do not have more than one non generic parser, or the content size is over MaxInt (2GB), or is over the totally available memory,
// or stream is already in memory as a ByteArrayInputStream
// then we use only stream-oriented parser.
if (canStream || contentLength > Integer.MAX_VALUE || contentLength > MemoryControl.available()) {
try {
/* The size of the buffer on the stream must be large enough to allow parser implementations to start parsing the resource
* and eventually fail, but must also be larger than eventual parsers internal buffers such as BufferedInputStream.DEFAULT_BUFFER_SIZE (8192 bytes) */
int rewindSize = 10 * 1024;
final InputStream markableStream;
if(sourceStream instanceof ByteArrayInputStream) {
/* No nead to use a wrapping buffered stream when the source is already entirely in memory.
* What's more, ByteArrayInputStream has no read limit when marking.*/
markableStream = sourceStream;
} else {
markableStream = new BufferedInputStream(sourceStream, rewindSize);
}
/* Mark now to allow resetting the buffered stream to the beginning of the stream */
markableStream.mark(rewindSize);
/* Loop on parser : they are supposed to be sorted in order to start with the most specific and end with the most generic */
for(Parser parser : idioms) {
/* Wrap in a CloseShieldInputStream to prevent SAX parsers closing the sourceStream
* and so let us eventually reuse the same opened stream with other parsers on parser failure */
CloseShieldInputStream nonCloseInputStream = new CloseShieldInputStream(markableStream);
try {
return parseSource(location, mimeType, parser, charset, ignore_class_name, scraper, timezoneOffset,
nonCloseInputStream, maxLinks, maxBytes);
} catch (Parser.Failure e) {
/* Try to reset the marked stream. If the failed parser has consumed too many bytes :
* too bad, the marks is invalid and process fails now with an IOException */
markableStream.reset();
if(parser instanceof gzipParser && e.getCause() instanceof GZIPOpeningStreamException
&& (idioms.size() == 1 || (idioms.size() == 2 && idioms.contains(genericIdiom)))) {
/* The gzip parser failed directly when opening the content stream : before falling back to the generic parser,
* let's have a chance to parse the stream as uncompressed. */
/* Indeed, this can be a case of misconfigured web server, providing both headers "Content-Encoding" with value "gzip",
* and "Content-type" with value such as "application/gzip".
* In that case our HTTP client (see GzipResponseInterceptor) is already uncompressing the stream on the fly,
* that's why the gzipparser fails opening the stream.
* (see RFC 7231 section 3.1.2.2 for "Content-Encoding" header specification https://tools.ietf.org/html/rfc7231#section-3.1.2.2)*/
gzipParser gzParser = (gzipParser)parser;
nonCloseInputStream = new CloseShieldInputStream(markableStream);
Document maindoc = gzipParser.createMainDocument(location, mimeType, charset, gzParser);
if (canStream || contentLength > Integer.MAX_VALUE || contentLength > MemoryControl.available()) {
try {
/* The size of the buffer on the stream must be large enough to allow parser implementations to start parsing the resource
* and eventually fail, but must also be larger than eventual parsers internal buffers such as BufferedInputStream.DEFAULT_BUFFER_SIZE (8192 bytes) */
final int rewindSize = 10 * 1024;
final InputStream markableStream;
if(sourceStream instanceof ByteArrayInputStream) {
/* No nead to use a wrapping buffered stream when the source is already entirely in memory.
* What's more, ByteArrayInputStream has no read limit when marking.*/
markableStream = sourceStream;
} else {
markableStream = new BufferedInputStream(sourceStream, rewindSize);
}
/* Mark now to allow resetting the buffered stream to the beginning of the stream */
markableStream.mark(rewindSize);
try {
Document[] docs = gzParser.parseCompressedInputStream(location,
charset, timezoneOffset, depth,
nonCloseInputStream, maxLinks, maxBytes);
if (docs != null) {
maindoc.addSubDocuments(docs);
}
return new Document[] { maindoc };
} catch(Exception e1) {
/* Try again to reset the marked stream if the failed parser has not consumed too many bytes */
markableStream.reset();
}
}
}
}
} catch (IOException e) {
throw new Parser.Failure("Error reading source", location);
}
}
/* Loop on parser : they are supposed to be sorted in order to start with the most specific and end with the most generic */
for(final Parser parser : idioms) {
/* Wrap in a CloseShieldInputStream to prevent SAX parsers closing the sourceStream
* and so let us eventually reuse the same opened stream with other parsers on parser failure */
CloseShieldInputStream nonCloseInputStream = new CloseShieldInputStream(markableStream);
try {
return parseSource(location, mimeType, parser, charset, ignore_class_name, scraper, timezoneOffset,
nonCloseInputStream, maxLinks, maxBytes);
} catch (final Parser.Failure e) {
/* Try to reset the marked stream. If the failed parser has consumed too many bytes :
* too bad, the marks is invalid and process fails now with an IOException */
markableStream.reset();
if(parser instanceof gzipParser && e.getCause() instanceof GZIPOpeningStreamException
&& (idioms.size() == 1 || (idioms.size() == 2 && idioms.contains(genericIdiom)))) {
/* The gzip parser failed directly when opening the content stream : before falling back to the generic parser,
* let's have a chance to parse the stream as uncompressed. */
/* Indeed, this can be a case of misconfigured web server, providing both headers "Content-Encoding" with value "gzip",
* and "Content-type" with value such as "application/gzip".
* In that case our HTTP client (see GzipResponseInterceptor) is already uncompressing the stream on the fly,
* that's why the gzipparser fails opening the stream.
* (see RFC 7231 section 3.1.2.2 for "Content-Encoding" header specification https://tools.ietf.org/html/rfc7231#section-3.1.2.2)*/
final gzipParser gzParser = (gzipParser)parser;
nonCloseInputStream = new CloseShieldInputStream(markableStream);
final Document maindoc = gzipParser.createMainDocument(location, mimeType, charset, gzParser);
try {
final Document[] docs = gzParser.parseCompressedInputStream(location,
charset, timezoneOffset, depth,
nonCloseInputStream, maxLinks, maxBytes);
if (docs != null) {
maindoc.addSubDocuments(docs);
}
return new Document[] { maindoc };
} catch(final Exception e1) {
/* Try again to reset the marked stream if the failed parser has not consumed too many bytes */
markableStream.reset();
}
}
}
}
} catch (final IOException e) {
throw new Parser.Failure("Error reading source", location);
}
}
// in case that we know more parsers we first transform the content into a byte[] and use that as base
// for a number of different parse attempts.
int maxBytesToRead = -1;
if(maxBytes < Integer.MAX_VALUE) {
/* Load at most maxBytes + 1 :
int maxBytesToRead = -1;
if(maxBytes < Integer.MAX_VALUE) {
/* Load at most maxBytes + 1 :
- to let parsers not supporting Parser.parseWithLimits detect the maxBytes size is exceeded and end with a Parser.Failure
- but let parsers supporting Parser.parseWithLimits perform partial parsing of maxBytes content */
maxBytesToRead = (int)maxBytes + 1;
}
if(contentLength >= 0 && contentLength < maxBytesToRead) {
maxBytesToRead = (int)contentLength;
}
maxBytesToRead = (int)maxBytes + 1;
}
if(contentLength >= 0 && contentLength < maxBytesToRead) {
maxBytesToRead = (int)contentLength;
}
byte[] b = null;
try {
b = FileUtils.read(sourceStream, maxBytesToRead);
} catch (final IOException e) {
throw new Parser.Failure(e.getMessage(), location);
}
Document[] docs = parseSource(location, mimeType, idioms, charset, ignore_class_name, scraper, timezoneOffset, depth, b, maxLinks, maxBytes);
final Document[] docs = parseSource(location, mimeType, idioms, charset, ignore_class_name, scraper, timezoneOffset, depth, b, maxLinks, maxBytes);
return docs;
}
public static Document[] parseSource(final DigestURL location, String mimeType, final String charset,
final Set<String> ignore_class_name,
final VocabularyScraper scraper, final int timezoneOffset, final int depth, final long contentLength,
final InputStream sourceStream) throws Parser.Failure {
return parseSource(location, mimeType, charset, ignore_class_name, scraper, timezoneOffset, depth, contentLength, sourceStream,
Integer.MAX_VALUE, Long.MAX_VALUE);
}
public static Document[] parseSource(final DigestURL location, String mimeType, final String charset,
final Set<String> ignore_class_name,
final VocabularyScraper scraper, final int timezoneOffset, final int depth, final long contentLength,
final InputStream sourceStream) throws Parser.Failure {
return parseSource(location, mimeType, charset, ignore_class_name, scraper, timezoneOffset, depth, contentLength, sourceStream,
Integer.MAX_VALUE, Long.MAX_VALUE);
}
/**
* Try to limit the parser processing with a maximum total number of links detection (anchors, images links, media links...)
* Try to limit the parser processing with a maximum total number of links detection (anchors, images links, media links...)
* or a maximum amount of content bytes to parse. Limits apply only when the available parsers for the resource media type support parsing within limits
* (see {@link Parser#isParseWithLimitsSupported()}. When available parsers do
* not support parsing within limits, an exception is thrown when
* content size is beyond maxBytes.
* not support parsing within limits, an exception is thrown when
* content size is beyond maxBytes.
* @param location the URL of the source
* @param mimeType the mime type of the source, if known
* @param charset the charset name of the source, if known
@ -424,19 +424,19 @@ public final class TextParser {
* @return a list of documents that result from parsing the source, with empty or null text.
* @throws Parser.Failure when the parser processing failed
*/
public static Document[] parseWithLimits(final DigestURL location, String mimeType, final String charset, final Set<String> ignoreClassNames,
final int timezoneOffset, final int depth, final long contentLength, final InputStream sourceStream, int maxLinks,
long maxBytes) throws Parser.Failure{
return parseSource(location, mimeType, charset, ignoreClassNames, new VocabularyScraper(), timezoneOffset, depth, contentLength,
sourceStream, maxLinks, maxBytes);
}
public static Document[] parseWithLimits(final DigestURL location, String mimeType, final String charset, final Set<String> ignoreClassNames,
final int timezoneOffset, final int depth, final long contentLength, final InputStream sourceStream, int maxLinks,
long maxBytes) throws Parser.Failure{
return parseSource(location, mimeType, charset, ignoreClassNames, new VocabularyScraper(), timezoneOffset, depth, contentLength,
sourceStream, maxLinks, maxBytes);
}
/**
* Try to limit the parser processing with a maximum total number of links detection (anchors, images links, media links...)
* Try to limit the parser processing with a maximum total number of links detection (anchors, images links, media links...)
* or a maximum amount of content bytes to parse. Limits apply only when the available parsers for the resource media type support parsing within limits
* (see {@link Parser#isParseWithLimitsSupported()}. When available parsers do
* not support parsing within limits, an exception is thrown when
* content size is beyond maxBytes.
* not support parsing within limits, an exception is thrown when
* content size is beyond maxBytes.
* @param location the URL of the source
* @param mimeType the mime type of the source, if known
* @param charset the charset name of the source, if known
@ -449,15 +449,15 @@ public final class TextParser {
* @return a list of documents that result from parsing the source, with empty or null text.
* @throws Parser.Failure when the parser processing failed
*/
public static Document[] parseWithLimits(final DigestURL location, String mimeType, final String charset,
final int timezoneOffset, final int depth, final long contentLength, final InputStream sourceStream, int maxLinks,
long maxBytes) throws Parser.Failure{
return parseSource(location, mimeType, charset, new HashSet<String>(), new VocabularyScraper(), timezoneOffset, depth, contentLength,
sourceStream, maxLinks, maxBytes);
}
public static Document[] parseWithLimits(final DigestURL location, String mimeType, final String charset,
final int timezoneOffset, final int depth, final long contentLength, final InputStream sourceStream, int maxLinks,
long maxBytes) throws Parser.Failure{
return parseSource(location, mimeType, charset, new HashSet<String>(), new VocabularyScraper(), timezoneOffset, depth, contentLength,
sourceStream, maxLinks, maxBytes);
}
/**
*
*
* @param location the URL of the source
* @param mimeType the mime type of the source, if known
* @param parser a parser supporting the resource at location
@ -481,7 +481,7 @@ public final class TextParser {
final InputStream sourceStream,
final int maxLinks,
final long maxBytes
) throws Parser.Failure {
) throws Parser.Failure {
if (AbstractParser.log.isFine()) AbstractParser.log.fine("Parsing '" + location + "' from stream");
final String fileExt = MultiProtocolURL.getFileExtension(location.getFileName());
final String documentCharset = htmlParser.patchCharsetEncoding(charset);
@ -491,15 +491,15 @@ public final class TextParser {
try {
final Document[] docs;
if(parser.isParseWithLimitsSupported()) {
docs = parser.parseWithLimits(location, mimeType, documentCharset, ignore_class_name, scraper, timezoneOffset, sourceStream, maxLinks, maxBytes);
docs = parser.parseWithLimits(location, mimeType, documentCharset, ignore_class_name, scraper, timezoneOffset, sourceStream, maxLinks, maxBytes);
} else {
/* Parser do not support partial parsing within limits : let's control it here*/
InputStream limitedSource = new StrictLimitInputStream(sourceStream, maxBytes);
docs = parser.parse(location, mimeType, documentCharset, ignore_class_name, scraper, timezoneOffset, limitedSource);
/* Parser do not support partial parsing within limits : let's control it here*/
final InputStream limitedSource = new StrictLimitInputStream(sourceStream, maxBytes);
docs = parser.parse(location, mimeType, documentCharset, ignore_class_name, scraper, timezoneOffset, limitedSource);
}
return docs;
} catch(Parser.Failure e) {
throw e;
} catch(final Parser.Failure e) {
throw e;
} catch (final Exception e) {
throw new Parser.Failure("parser failed: " + parser.getName(), location);
}
@ -531,77 +531,77 @@ public final class TextParser {
final byte[] sourceArray,
final int maxLinks,
final long maxBytes
) throws Parser.Failure {
) throws Parser.Failure {
final String fileExt = MultiProtocolURL.getFileExtension(location.getFileName());
if (AbstractParser.log.isFine()) AbstractParser.log.fine("Parsing " + location + " with mimeType '" + mimeType + "' and file extension '" + fileExt + "' from byte[]");
final String documentCharset = htmlParser.patchCharsetEncoding(charset);
assert !parsers.isEmpty();
Document[] docs = null;
final Map<Parser, Parser.Failure> failedParser = new HashMap<Parser, Parser.Failure>();
String origName = Thread.currentThread().getName();
final Map<Parser, Parser.Failure> failedParser = new HashMap<>();
final String origName = Thread.currentThread().getName();
Thread.currentThread().setName("parsing + " + location.toString()); // set a name to get the address in Thread Dump
for (final Parser parser: parsers) {
if (MemoryControl.request(sourceArray.length * 6, false)) {
ByteArrayInputStream bis;
if (mimeType.equals("text/plain") && parser.getName().equals("HTML Parser")) {
// a hack to simulate html files .. is needed for NOLOAD queues. This throws their data into virtual text/plain messages.
bis = new ByteArrayInputStream(UTF8.getBytes("<html><head></head><body><h1>" + UTF8.String(sourceArray) + "</h1></body><html>"));
} else {
bis = new ByteArrayInputStream(sourceArray);
}
ByteArrayInputStream bis;
if (mimeType.equals("text/plain") && parser.getName().equals("HTML Parser")) {
// a hack to simulate html files .. is needed for NOLOAD queues. This throws their data into virtual text/plain messages.
bis = new ByteArrayInputStream(UTF8.getBytes("<html><head></head><body><h1>" + UTF8.String(sourceArray) + "</h1></body><html>"));
} else {
bis = new ByteArrayInputStream(sourceArray);
}
try {
if(parser.isParseWithLimitsSupported()) {
docs = parser.parseWithLimits(location, mimeType, documentCharset, ignore_class_name, scraper, timezoneOffset, bis, maxLinks, maxBytes);
} else {
if(parser.isParseWithLimitsSupported()) {
docs = parser.parseWithLimits(location, mimeType, documentCharset, ignore_class_name, scraper, timezoneOffset, bis, maxLinks, maxBytes);
} else {
/* Partial parsing is not supported by this parser : check content length now */
if(sourceArray.length > maxBytes) {
throw new Parser.Failure("Content size is over maximum size of " + maxBytes + "", location);
}
docs = parser.parse(location, mimeType, documentCharset, ignore_class_name, scraper, timezoneOffset, bis);
}
if(sourceArray.length > maxBytes) {
throw new Parser.Failure("Content size is over maximum size of " + maxBytes + "", location);
}
docs = parser.parse(location, mimeType, documentCharset, ignore_class_name, scraper, timezoneOffset, bis);
}
} catch (final Parser.Failure e) {
if(parser instanceof gzipParser && e.getCause() instanceof GZIPOpeningStreamException &&
(parsers.size() == 1 || (parsers.size() == 2 && parsers.contains(genericIdiom)))) {
/* The gzip parser failed directly when opening the content stream : before falling back to the generic parser,
* let's have a chance to parse the stream as uncompressed. */
/* Indeed, this can be a case of misconfigured web server, providing both headers "Content-Encoding" with value "gzip",
* and "Content-type" with value such as "application/gzip".
* In that case our HTTP client (see GzipResponseInterceptor) is already uncompressing the stream on the fly,
* that's why the gzipparser fails opening the stream.
* (see RFC 7231 section 3.1.2.2 for "Content-Encoding" header specification https://tools.ietf.org/html/rfc7231#section-3.1.2.2)*/
gzipParser gzParser = (gzipParser)parser;
bis = new ByteArrayInputStream(sourceArray);
Document maindoc = gzipParser.createMainDocument(location, mimeType, charset, gzParser);
if(parser instanceof gzipParser && e.getCause() instanceof GZIPOpeningStreamException &&
(parsers.size() == 1 || (parsers.size() == 2 && parsers.contains(genericIdiom)))) {
/* The gzip parser failed directly when opening the content stream : before falling back to the generic parser,
* let's have a chance to parse the stream as uncompressed. */
/* Indeed, this can be a case of misconfigured web server, providing both headers "Content-Encoding" with value "gzip",
* and "Content-type" with value such as "application/gzip".
* In that case our HTTP client (see GzipResponseInterceptor) is already uncompressing the stream on the fly,
* that's why the gzipparser fails opening the stream.
* (see RFC 7231 section 3.1.2.2 for "Content-Encoding" header specification https://tools.ietf.org/html/rfc7231#section-3.1.2.2)*/
final gzipParser gzParser = (gzipParser)parser;
try {
docs = gzParser.parseCompressedInputStream(location,
charset, timezoneOffset, depth,
bis, maxLinks, maxBytes);
if (docs != null) {
maindoc.addSubDocuments(docs);
}
docs = new Document[] { maindoc };
break;
} catch(Parser.Failure e1) {
failedParser.put(parser, e1);
} catch(Exception e2) {
failedParser.put(parser, new Parser.Failure(e2.getMessage(), location));
}
} else {
failedParser.put(parser, e);
}
bis = new ByteArrayInputStream(sourceArray);
final Document maindoc = gzipParser.createMainDocument(location, mimeType, charset, gzParser);
try {
docs = gzParser.parseCompressedInputStream(location,
charset, timezoneOffset, depth,
bis, maxLinks, maxBytes);
if (docs != null) {
maindoc.addSubDocuments(docs);
}
docs = new Document[] { maindoc };
break;
} catch(final Parser.Failure e1) {
failedParser.put(parser, e1);
} catch(final Exception e2) {
failedParser.put(parser, new Parser.Failure(e2.getMessage(), location));
}
} else {
failedParser.put(parser, e);
}
} catch (final Exception e) {
failedParser.put(parser, new Parser.Failure(e.getMessage(), location));
//log.logWarning("tried parser '" + parser.getName() + "' to parse " + location.toNormalform(true, false) + " but failed: " + e.getMessage(), e);
} finally {
try {
bis.close();
} catch(IOException ioe) {
// Ignore.
}
try {
bis.close();
} catch(final IOException ioe) {
// Ignore.
}
}
if (docs != null) break;
}
@ -616,22 +616,22 @@ public final class TextParser {
}
String failedParsers = "";
for (final Map.Entry<Parser, Parser.Failure> error: failedParser.entrySet()) {
AbstractParser.log.warn("tried parser '" + error.getKey().getName() + "' to parse " + location.toNormalform(true) + " but failed: " + error.getValue().getMessage(), error.getValue());
AbstractParser.log.warn("tried parser '" + error.getKey().getName() + "' to parse " + location.toNormalform(true) + " but failed: " + error.getValue().getMessage(), error.getValue());
failedParsers += error.getKey().getName() + " ";
}
throw new Parser.Failure("All parser failed: " + failedParsers, location);
}
for (final Document d: docs) {
InputStream textStream = d.getTextStream();
final InputStream textStream = d.getTextStream();
assert textStream != null : "mimeType = " + mimeType;
try {
if(textStream != null) {
/* textStream can be a FileInputStream : we must close it to ensure releasing system resource */
textStream.close();
}
} catch (IOException e) {
AbstractParser.log.warn("Could not close text input stream");
}
if(textStream != null) {
/* textStream can be a FileInputStream : we must close it to ensure releasing system resource */
textStream.close();
}
} catch (final IOException e) {
AbstractParser.log.warn("Could not close text input stream");
}
d.setDepth(depth);
} // verify docs
@ -670,7 +670,7 @@ public final class TextParser {
* @throws Parser.Failure when the file extension or the MIME type is denied
*/
private static Set<Parser> parsers(final MultiProtocolURL url, String mimeType1) throws Parser.Failure {
final Set<Parser> idioms = new LinkedHashSet<Parser>(2); // LinkedSet to maintain order (genericParser should be last)
final Set<Parser> idioms = new LinkedHashSet<>(2); // LinkedSet to maintain order (genericParser should be last)
// check given mime type, place this first because this is the most likely to work and the best fit to the supplied mime
Set<Parser> idiom;
@ -682,13 +682,13 @@ public final class TextParser {
}
// check extension and add as backup (in case no, wrong or unknown/unsupported mime was supplied)
String ext = MultiProtocolURL.getFileExtension(url.getFileName());
final String ext = MultiProtocolURL.getFileExtension(url.getFileName());
if (ext != null && ext.length() > 0) {
/* We do not throw here an exception when the media type is provided and inconsistent with the extension (if it is not supported an exception has already beeen thrown).
* Otherwise we would reject URLs with an apparently unsupported extension but whose actual Media Type is supported (for example text/html).
* Notable example : wikimedia commons pages, such as https://commons.wikimedia.org/wiki/File:YaCy_logo.png */
/* We do not throw here an exception when the media type is provided and inconsistent with the extension (if it is not supported an exception has already beeen thrown).
* Otherwise we would reject URLs with an apparently unsupported extension but whose actual Media Type is supported (for example text/html).
* Notable example : wikimedia commons pages, such as https://commons.wikimedia.org/wiki/File:YaCy_logo.png */
if (denyExtensionx.containsKey(ext) && (mimeType1 == null || mimeType1.equals(mimeOf(ext)))) {
throw new Parser.Failure("file extension '" + ext + "' is denied (1)", url);
throw new Parser.Failure("file extension '" + ext + "' is denied (1)", url);
}
idiom = ext2parser.get(ext);
if (idiom != null && !idioms.containsAll(idiom)) { // use containsAll -> idiom is a Set of parser
@ -701,11 +701,11 @@ public final class TextParser {
if (mimeType2 != null && (idiom = mime2parser.get(mimeType2)) != null && !idioms.containsAll(idiom)) { // use containsAll -> idiom is a Set of parser
idioms.addAll(idiom);
}
/* No matching idiom has been found : let's check if the media type ends with the "+xml" suffix so we can handle it with a generic XML parser
/* No matching idiom has been found : let's check if the media type ends with the "+xml" suffix so we can handle it with a generic XML parser
* (see RFC 7303 - Using '+xml' when Registering XML-Based Media Types : https://tools.ietf.org/html/rfc7303#section-4.2) */
if(idioms.isEmpty() && mimeType1 != null && mimeType1.endsWith("+xml")) {
idioms.add(genericXMLIdiom);
idioms.add(genericXMLIdiom);
}
// always add the generic parser (make sure it is the last in access order)
@ -723,18 +723,18 @@ public final class TextParser {
*/
public static String supportsMime(String mimeType) {
if (mimeType == null) {
return null;
return null;
}
mimeType = normalizeMimeType(mimeType);
if (denyMime.containsKey(mimeType)) {
return "mime type '" + mimeType + "' is denied (2)";
return "mime type '" + mimeType + "' is denied (2)";
}
if (mime2parser.get(mimeType) == null) {
/* No matching idiom has been found : let's check if the media type ends with the "+xml" suffix as can handle it with a generic XML parser
/* No matching idiom has been found : let's check if the media type ends with the "+xml" suffix as can handle it with a generic XML parser
* (see RFC 7303 - Using '+xml' when Registering XML-Based Media Types : https://tools.ietf.org/html/rfc7303#section-4.2) */
if(!mimeType.endsWith("+xml")) {
return "no parser for mime '" + mimeType + "' available";
}
if(!mimeType.endsWith("+xml")) {
return "no parser for mime '" + mimeType + "' available";
}
}
return null;
}
@ -774,20 +774,20 @@ public final class TextParser {
return ext2mime.get(ext.toLowerCase(Locale.ROOT));
}
/**
* Normalize a media type information string (can be a HTTP "Content-Type"
* response header) : convert to lower case, remove any supplementary
* parameters such as the encoding (charset name), and provide a default
* value when null.
*
* @param mimeType
* raw information about media type, eventually provided by a
* HTTP "Content-Type" response header
* @return a non null media type in lower case
*/
/**
* Normalize a media type information string (can be a HTTP "Content-Type"
* response header) : convert to lower case, remove any supplementary
* parameters such as the encoding (charset name), and provide a default
* value when null.
*
* @param mimeType
* raw information about media type, eventually provided by a
* HTTP "Content-Type" response header
* @return a non null media type in lower case
*/
public static String normalizeMimeType(String mimeType) {
if (mimeType == null) {
return "application/octet-stream";
return "application/octet-stream";
}
mimeType = mimeType.toLowerCase(Locale.ROOT);
final int pos = mimeType.indexOf(';');
@ -818,7 +818,7 @@ public final class TextParser {
public static void setDenyExtension(final String denyList) {
denyExtensionx.clear();
for (final String s: CommonPattern.COMMA.split(denyList)) denyExtensionx.put(s, v);
for (final String s: CommonPattern.COMMA.split(denyList)) denyExtensionx.put(s.trim(), v);
}
public static String getDenyExtension() {