- each image that is requested is stored in the cache
- the image is taken from the cache if exists there
- the image can be scaled
The purpose of creation a scaled image is because of copyright problems
In a further stept the retrieval of not-shrinked images is restricted
to either access from localhost or with given authentication
This servlet can be used for image-preview purpose after an image search
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@1989 6c8d7289-2bf4-0310-a012-ef5d649a1542
*) There is no status line in HTTP/0.9
*) Answers to HEAD requests should return the same headers as a GET request
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@1664 6c8d7289-2bf4-0310-a012-ef5d649a1542
- You can access this servlet via YaCySearchPluginFF.html
- The generated search plugin has the name YaCySearchPluginFF.src
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@1555 6c8d7289-2bf4-0310-a012-ef5d649a1542
and filled with cookies and so on.
This header one can set into serverObjects
Check CookieTest.html and CookieTest.java for details.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@1334 6c8d7289-2bf4-0310-a012-ef5d649a1542
Version 0.1
Start Yacy, go to localhost:8080/CookieTest.html
Play around with cookies
Look into CookieTest.java to See, how it works
This behavior will be changed
such that httpHeader will be responsible for the cookies in the future
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@1332 6c8d7289-2bf4-0310-a012-ef5d649a1542
- don't send Body on HEAD requests
- don't send a Last-modified: date, that is later then Date:
- Use Cache-control instead of Pragma with HTTP/1.1
- don't send header with HTTP/0.9
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@1198 6c8d7289-2bf4-0310-a012-ef5d649a1542
- restructuring of mimeTypes based on the parsers
- displaying parser usage count
- displaying human readably parser names
- displaying parser version information
*) httpdFileHandler.java
- adding possibility to support "streaming" servlets
which are special servlets that can communicate with
the client via the connection streams autonomous
- the name of these new servlet types must end with the
file extension .stream
- this feature will be needed by the yacy ScreenSaver
class to fetch statistic data from the peer without the
need to reconnect to the server all the time
*) Adding human readable names and version information for
all supported parsers
*) plasmaParser.java
- adding new structure to store parser statistic data
*) Adding openDocument parser
- can be used to parse odt files
*) jmimemagic
- adding rules to detect openDocument formats properly
*) serverLog.java
- adding functions that can be used to query if a given
logging level is enabled or not.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@1140 6c8d7289-2bf4-0310-a012-ef5d649a1542
- solving problems with unkown certificates by implementing a dummy trust Manager
- adding https support to robots-parser
- Seed File can now be downloaded from https resources
- adapting plasmaHTCache.java to support https URLs properly
*) URL Normalization
- sub URLs are now normalized properly during indexing
- pointing urlNormalForm function of plasmaParser to htmlFilterContentScraper function
- normalizing URLs which were received by a crawlOrder request
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@1024 6c8d7289-2bf4-0310-a012-ef5d649a1542
- Requestheader was not passed to the underlying post function properly
- Bug seems not to have caused any side-effect until yet
*) Bugfix for manual peer ping functionality
*) Bugfix for UnresolvedPattern Problem if an Exception occurred in a servlet.
See: http://www.yacy-forum.de/viewtopic.php?t=1353
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@963 6c8d7289-2bf4-0310-a012-ef5d649a1542
Adminrights are OR(old auth or new).
Proxyrights are AND(you need Proxyrights and a not reached Timelimit)
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@960 6c8d7289-2bf4-0310-a012-ef5d649a1542
- adding automatic refresh
- accepts new parameter nameLookup which can be used to deactivate
yacy-peer name lookup (because we have problems with this on large seed-dbs)
*) ViewFile
New page that can be used to view
- original content
- plain text content
- parsed content
- parsed sentences
of a webpage specified by there url hash
Mainly for debugging purpose at the moment
*) Robots.txt
Bugfix for if-modified-since usage
TODO: synchronization of downloads to avoid loading the same robots-file
multiple times in parallel by different threads
*) Shutdown
Better abortion of transferRWI and transferURL sessions on server shutdown
*) Status Page
Adding icon to start/stop crawling via status page
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@950 6c8d7289-2bf4-0310-a012-ef5d649a1542
adding more verbose logging output for db initialization
*) httpdFileHandler.java
adding cache for servlet response methods
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@897 6c8d7289-2bf4-0310-a012-ef5d649a1542
various checks like the blacklist check or the robots.txt disallow check are now
done by a separate thread to unburden the indexer thread(s)
TODO: maybe we have to introduce a threadpool here if it turn out that this single
thread is a bottleneck because of the time consuming robots.txt downloads
*) improved index transfer
The index selection and transmission is done in parallel now to improve index
transfer performance.
TODO: maybe we could speed up performance by unsing multiple transmission threads in
parallel instead of only a single one.
*) gzip encoded post requests
it is now configureable if a gzip encoded post request should be send on
intex transfer/distribution
*) storage Peer (very experimentell and not optimized yet)
Now it's possible to send the result of the yacy indexer thread to a remote peer
istead of storing the indexed words locally.
This could be done by setting the property "storagePeerHash" in the yacy config file
- Please note that if the index transfer fails, the index ist stored locally.
- TODO: currently this index transfer is done by the indexer thread.
To seedup the indexer
a) this transmission should be done in parallel and
b) multiple chunks should be bundled and transfered together
*) general performance improvements
- better memory cleanup after http request processing has finished
- replacing some string concatenations with stringBuffers
- replacing BufferedInputStreams with serverByteBuffer
- replacing vectors with arraylists wherever possible
- replacing hashtables with hashmaps wherever possible
This was done because function calls to verctor or hashtable functions
take 3 time longer than calls to functions of arraylists or hashmaps.
TODO: we should take a look on the class serverObject which is inherited from hashmap
Do we realy need a synchronization for this class?
TODO: replace arraylists with linkedLists if random access to the list elements is not needed
*) Robots Parser supports if-modified-since downloads now
If the downloaded robots.txt file is older than 7 days the robots parser tries to
download the robots.txt with the if-modified-since header to avoid unnecessary downloads
if the file was not changed. Additionally the ETag header is used to detect changes.
*) Crawler: better handling of unsupported mimeTypes + FileExtension
*) Bugfix: plasmaWordIndexEntity was not closed correctly in
- query.java
- plasmaswitchboard.java
*) function minimizeUrlDB added to yacy.java
this function tests the current urlHashDB for unused urls
ATTENTION: please don't use this function at the moment because
it causes the wordIndexDB to flush all words into the
word directory!
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@853 6c8d7289-2bf4-0310-a012-ef5d649a1542
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