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Remove chroot option; log into the data directory automatically.

This commit is contained in:
Jordan Bancino 2022-10-11 12:00:36 -04:00
parent 5d9b0df0bf
commit 1353fa6429
6 changed files with 79 additions and 48 deletions
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1
TODO.txt
View File

@ -56,6 +56,7 @@ Phase 2: Building a foundation
[ ] Remove "chroot" option, just chroot into the data dir, and make the log
file live there as well.
[ ] Allow logging to the syslog
[ ] Fix bug where the socket stays open after quit.
Phase 3: Welcome to Matrix

3
contrib/production.conf
View File

@ -23,9 +23,8 @@ data-dir "/var/telodendria";
federation "true";
registration "false";
log "file" {
level "message";
level "warning";
timestampFormat "default";
color "true";
};
threads "4";
max-connections "32";

46
man/man5/telodendria.conf.5
View File

@ -1,4 +1,4 @@
.Dd $Mdocdate: September 30 2022 $
.Dd $Mdocdate: October 11 2022 $
.Dt TELODENDRIA.CONF 5
.Os Telodendria Project
.Sh NAME
@ -78,18 +78,6 @@ follows the same rules as
.Pp
This directive is optional. If it is not specified, it is automatically
set to be the same as the base URL.
.It Ic chroot Ar directory
Change the root directory to the specified directory as soon as possible.
Note that all other paths and files specified in
.Nm
must be accessible relative from this directory. This directive only
takes effect if Telodendria is running as root. If it isn't, then a
warning is printed to the log, and no
.Xr chroot 2
call is made. In that case, Telodendria will still change into the
specified directory, so that the other paths referenced can be made
relative to this one. This directive is required. It is expected that
the homeserver data and logs will be stored in a subdirectory of this one.
.It Ic id Ar uid Ar gid
The effective UNIX user and group to drop to after binding to the socket
and changing the filesystem root. This only works if Telodendria is
@ -104,13 +92,15 @@ The data directory into which Telodendria will write all user and event
information. Telodendria doesn't use a database like other Matrix homeserver
implementations; it uses a flat-file directory structure, similar to how an
SMTP server uses Maildirs to deliver email. This directive is required.
.Pp
Telodendria will
.Xr chroot 2
into this directory as soon as possible for security reasons. If the
.Ic log
directive is configured to write to a file, the log file will be written
in the data directory.
.Ar directory
should be a path relative to the
.Ic chroot
directory. Don't depend on the
.Ic chroot
option working, because there may be legitimate cases when Telodendria will
not be started as root, thus causing the chroot to fail.
should be an absolute path, under which all Telodendria data will live.
.It Ic federation Ar true|false
Whether to enable federation with other Matrix homeservers or not. Matrix is
by its very nature a federated protocol, but if you just want to run your
@ -133,10 +123,10 @@ to run their own homeserver, you can aset this to
which will allow anyone to create an account. Telodendria should be capable of handling
a large amount of users without difficulty or security issues. This directive is
required.
.It Ic log Ar file|stdout
The log configuration. Telodendria uses its own logging facility, which can output to
either standard output or a file. A number of child directives can be added to this
directive to customize the log output:
.It Ic log Ar stdout|file
The log configuration. Telodendria uses its own logging facility, which can output
logs to standard output or a file. A number of child directives can
be added to this directive to customize the log output:
.Bl -tag -width Ds
.It Ic level Ar error|warning|task|message|debug
The level of messages to log at. Each level shows all the levels above it. For
@ -156,11 +146,19 @@ altogether, you can do so via this option. Acceptable values are
.Ar default ,
or a formatter string as described by your system's
.Xr strftime 3 .
In the future, logging to the syslog may also be an option. In that case, this
option only applies if
.Ic log
is "stdout" or "file".
.It Ic color Ar true|false
Whether or not to enable colored output on TTYs. Note that ANSI color sequences
will not be written to a log file, only a real terminal, so this option only
applies if the log is being written to a standard output which is connected to
a terminal.
.Pp
This option only applies if
.Ic log
is "stdout".
.El
.It Ic threads Ar count
How many worker threads to spin up to handle requests. This should generally be
@ -176,7 +174,7 @@ The default
.Xr telodendria 8
configuration file.
.It Pa /var/telodendria
The recommended chroot directory.
The recommended data directory.
.El
.Sh EXAMPLES
Please consult the default

55
src/Telodendria.c
View File

@ -223,28 +223,60 @@ main(int argc, char **argv)
LogConfigTimeStampFormatSet(lc, tConfig->logTimestamp);
/* Color is enabled by default in the logger. */
if (!(tConfig->flags & TELODENDRIA_LOG_COLOR))
if (tConfig->flags & TELODENDRIA_LOG_COLOR)
{
LogConfigFlagSet(lc, LOG_FLAG_COLOR);
}
else
{
LogConfigFlagClear(lc, LOG_FLAG_COLOR);
}
LogConfigLevelSet(lc, flags & ARG_VERBOSE ? LOG_DEBUG : tConfig->logLevel);
if (tConfig->logOut)
if (chdir(tConfig->dataDir) != 0)
{
FILE *logFile = fopen(tConfig->logOut, "w");
Log(lc, LOG_ERROR, "Unable to change into data directory: %s.", strerror(errno));
exit = EXIT_FAILURE;
goto finish;
}
else
{
Log(lc, LOG_DEBUG, "Changed working directory to: %s", tConfig->dataDir);
}
if (tConfig->flags & TELODENDRIA_LOG_FILE)
{
FILE *logFile = fopen("telodendria.log", "a");
if (!logFile)
{
Log(lc, LOG_ERROR, "Unable to open log file '%s' for writing.", tConfig->logOut);
Log(lc, LOG_ERROR, "Unable to open log file for appending.");
exit = EXIT_FAILURE;
goto finish;
}
Log(lc, LOG_MESSAGE, "Logging to '%s'. Check there for all future messages.", tConfig->logOut);
Log(lc, LOG_MESSAGE, "Logging to the log file. Check there for all future messages.");
LogConfigOutputSet(lc, logFile);
}
else if (tConfig->flags & TELODENDRIA_LOG_STDOUT)
{
Log(lc, LOG_DEBUG, "Already logging to standard output.");
}
else if (tConfig->flags & TELODENDRIA_LOG_SYSLOG)
{
Log(lc, LOG_ERROR, "Logging to the syslog is not yet supported.");
exit = EXIT_FAILURE;
goto finish;
}
else
{
Log(lc, LOG_ERROR, "Unknown logging method in flags: '%d'", tConfig->flags);
Log(lc, LOG_ERROR, "This is a programmer error; please report it.");
exit = EXIT_FAILURE;
goto finish;
}
Log(lc, LOG_DEBUG, "Configuration:");
LogConfigIndent(lc);
@ -258,17 +290,6 @@ main(int argc, char **argv)
Log(lc, LOG_DEBUG, "Flags: %x", tConfig->flags);
LogConfigUnindent(lc);
if (chdir(tConfig->dataDir) != 0)
{
Log(lc, LOG_ERROR, "Unable to change into data directory: %s.", strerror(errno));
exit = EXIT_FAILURE;
goto finish;
}
else
{
Log(lc, LOG_DEBUG, "Changed working directory to: %s", tConfig->dataDir);
}
Log(lc, LOG_DEBUG, "Running as uid:gid: %d:%d.", getuid(), getgid());
userInfo = getpwnam(tConfig->uid);

16
src/TelodendriaConfig.c
View File

@ -354,13 +354,23 @@ TelodendriaConfigParse(HashMap * config, LogConfig * lc)
}
/* Set the actual log output file last */
if (strcmp(ArrayGet(value, 0), "stdout") != 0)
if (strcmp(ArrayGet(value, 0), "stdout") == 0)
{
tConfig->logOut = UtilStringDuplicate(ArrayGet(value, 0));
tConfig->flags |= TELODENDRIA_LOG_STDOUT;
}
else if (strcmp(ArrayGet(value, 0), "file") == 0)
{
tConfig->flags |= TELODENDRIA_LOG_FILE;
}
else if (strcmp(ArrayGet(value, 0), "syslog") == 0)
{
tConfig->flags |= TELODENDRIA_LOG_SYSLOG;
}
else
{
tConfig->logOut = NULL;
Log(lc, LOG_ERROR, "Unknown log value '%s', expected 'stdout', 'file', or 'syslog'.",
ArrayGet(value, 0));
goto error;
}
return tConfig;

6
src/include/TelodendriaConfig.h
View File

@ -38,7 +38,10 @@ typedef enum TelodendriaConfigFlag
{
TELODENDRIA_FEDERATION = (1 << 0),
TELODENDRIA_REGISTRATION = (1 << 1),
TELODENDRIA_LOG_COLOR = (1 << 2)
TELODENDRIA_LOG_COLOR = (1 << 2),
TELODENDRIA_LOG_FILE = (1 << 3),
TELODENDRIA_LOG_STDOUT = (1 << 4),
TELODENDRIA_LOG_SYSLOG = (1 << 5)
} TelodendriaConfigFlag;
/*
@ -65,7 +68,6 @@ typedef struct TelodendriaConfig
unsigned int threads;
unsigned int maxConnections;
char *logOut;
char *logTimestamp;
LogLevel logLevel;
} TelodendriaConfig;