This application allows occupants of an XMPP multi-user chat room to share data (images and such) with each-other.
More specifically, this is a Jabber Component that implements XEP-0363: HTTP File Upload
The compiled application, as well as the source code, is available for download on the 'releases' page of this project.
This project is using a Maven-based build process. To build this project yourself, ensure that the following are available on your local host:
- A Java Development Kit, version 8.
- Apache Maven 3
To build this project, invoke on a command shell:
$ mvn clean package
Upon completion, the application will be available in the target directory.
To run the application, execute
java -jar httpfileuploadcomponent-<versionnumber>-jar-with-dependencies.jar
A number of arguments can (and probably should) be added. A common execution is:
java -jar httpfileuploadcomponent-<versionnumber>-jar-with-dependencies.jar \
--xmppHost openfire1.example.org \
--sharedSecret hqcUrfHtgE73FktcXwfrP
This will start the application, connect it to an XMPP server with the provided shared secret, and launch a webserver on a non-local interface of the machine on which the application is executed.
When end-users should interact with the webserver using a different address, the
announcedWebHost argument can be used. This provides a convenient way to work
with remote proxies or port-forwarded network topologies.
A full set of usage instructions are provided by adding the --help argument:
$ java -jar httpfileuploadcomponent-1.0-jar-with-dependencies.jar --help
usage: arguments
--announcedWebContextRoot <arg> The context root that is to be used
by the end users (when different
from webContextRoot). Defaults to
webContextRoot value.
--announcedWebHost <arg> The hostname or IP address that is
to be used by the end users (when
different from webHost). Defaults to
the webHost address.
--announcedWebPort <arg> The TCP port number that is to be
used by the end users (when
different from webPort). Defaults to
the webPort value.
--announcedWebProtocol <arg> The Protocol that is to be used by
the end users. Defaults to the
webProtocol value
--clamavHost <arg> The FQDN or IP address of the host
running the optional ClamAV malware
scanner, if any.
--clamavPort <arg> The TCP port number for the optional
ClamAV malware scanner, if any.
--domain <arg> The domain that will be used for the
component with the XMPP domain.
--fileRepo <arg> Store files in a directory provided
by the file system. Provide the
desired path as a value. Path must
exist.
-h,--help Displays this help text.
--maxFileSize <arg> The maximum allowed size per file,
in bytes. Use -1 to disable file
size limit. Defaults to 5242880
(five MB).
--sharedSecret <arg> The shared secret, that
authenticates this component with
the XMPP domain.
--tempFileRepo Store files in the temporary
directory provided by the file
system.
--webContextRoot <arg> The context root of the web server
through which the web frontend will
be made available. Defaults to '/',
the root context.
--webHost <arg> The hostname or IP address on which
the webserver will be ran. Defaults
to an arbitrary, non-local address
of this machine.
--webPort <arg> The TCP port number of the
webserver. Defaults to 12121.
--webProtocol <arg> The protocol that is used to expose
services by the webservice. Defaults
to http
--wildcardCORS Add CORS headers that define a
liberal access control regime
(wildcard origin, various headers
and methods).
--xmppHost <arg> The FQDN or IP address (not XMPP
domain name) of the XMPP domain that
this component will connect to.
Defaults to 'localhost'.
--xmppPort <arg> The TCP port number on the xmppHost,
to which a connection will be made.
Defaults to 5275.
To facilitate virus scanning, you can configure the application to use ClamAV. ClamAV is a third-party, open source (GPLv2) anti-virus toolkit, available at https://www.clamav.net/
To configure this application to use ClamAV, install, configure and run clamav-daemon, the scanner daemon of ClamAV. Configure the daemon in such a way that Openfire can access it via TCP.
Note: ClamAV is configured with a maximum file size. Ensure that this is at least as big as the maxFileSize that is
provided as an argument to the HTTP File Upload Component.
Then, start the HTTP File Upload Component application with the clamavHost and clamavPort arguments. When these are
provided, the application will supply each file that is being uploaded to the ClamAV daemon for scanning. A file upload
will fail when the ClamAV daemon could not be reached, or, obviously, when it detects malware.
While malware scanning can offer some protection against distributing unwanted content, it has limitations. Particularly when the uploaded data is encrypted, the scanner is unlikely able to detect any malware in it.
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