#include <string.h>\r
#include <time.h>\r
#include <unistd.h>\r
+#include <pwd.h>\r
#include <sys/types.h>\r
#include <sys/time.h>\r
\r
return 400;\r
}\r
\r
+ // access the file in web/*\r
+ char webfilename[FILENAME_MAX + 1];\r
+ strcpy(webfilename, "web/");\r
+ strncpy(&webfilename[4], filename, FILENAME_MAX - 4);\r
+ webfilename[FILENAME_MAX] = '\0';\r
+\r
// check if the file exists\r
struct stat stat;\r
- if(lstat(filename, &stat) != 0) {\r
+ if(lstat(webfilename, &stat) != 0) {\r
debug(D_WEB_CLIENT_ACCESS, "%llu: File '%s' is not found.", w->id, filename);\r
w->data->bytes = sprintf(w->data->buffer, "File '%s' does not exist, or is not accessible.", filename);\r
return 404;\r
}\r
\r
// open the file\r
- w->ifd = open(filename, O_NONBLOCK, O_RDONLY);\r
+ w->ifd = open(webfilename, O_NONBLOCK, O_RDONLY);\r
if(w->ifd == -1) {\r
w->ifd = w->ofd;\r
\r
}\r
}\r
\r
+int become_user(const char *username)\r
+{\r
+ struct passwd *pw = getpwnam(username);\r
+ if(!pw) {\r
+ fprintf(stderr, "User %s is not present. Error: %s\n", username, strerror(errno));\r
+ return -1;\r
+ }\r
+ if(setgid(pw->pw_gid) != 0) {\r
+ fprintf(stderr, "Cannot switch to user's %s group (gid: %d). Error: %s\n", username, pw->pw_gid, strerror(errno));\r
+ return -1;\r
+ }\r
+ if(setegid(pw->pw_gid) != 0) {\r
+ fprintf(stderr, "Cannot effectively switch to user's %s group (gid: %d). Error: %s\n", username, pw->pw_gid, strerror(errno));\r
+ return -1;\r
+ }\r
+ if(setuid(pw->pw_uid) != 0) {\r
+ fprintf(stderr, "Cannot switch to user %s (uid: %d). Error: %s\n", username, pw->pw_uid, strerror(errno));\r
+ return -1;\r
+ }\r
+ if(seteuid(pw->pw_uid) != 0) {\r
+ fprintf(stderr, "Cannot effectively switch to user %s (uid: %d). Error: %s\n", username, pw->pw_uid, strerror(errno));\r
+ return -1;\r
+ }\r
+\r
+ return(0);\r
+}\r
+\r
int main(int argc, char **argv)\r
{\r
int i, daemon = 0;\r
if(strcmp(argv[i], "-l") == 0 && (i+1) < argc) {\r
save_history = atoi(argv[i+1]);\r
if(save_history < 5 || save_history > HISTORY_MAX) {\r
- error("Invalid save lines %d given. Defaulting to %d.", save_history, HISTORY);\r
+ fprintf(stderr, "Invalid save lines %d given. Defaulting to %d.\n", save_history, HISTORY);\r
save_history = HISTORY;\r
}\r
else {\r
i++;\r
}\r
else if(strcmp(argv[i], "-u") == 0 && (i+1) < argc) {\r
+ if(become_user(argv[i+1]) != 0) {\r
+ fprintf(stderr, "Cannot become user %s.\n", argv[i+1]);\r
+ exit(1);\r
+ }\r
+ else {\r
+ debug(D_OPTIONS, "Successfully became user %s.", argv[i+1]);\r
+ }\r
+ i++;\r
+ }\r
+ else if(strcmp(argv[i], "-t") == 0 && (i+1) < argc) {\r
update_every = atoi(argv[i+1]);\r
if(update_every < 1 || update_every > 600) {\r
- error("Invalid update timer %d given. Defaulting to %d.", update_every, UPDATE_EVERY_MAX);\r
+ fprintf(stderr, "Invalid update timer %d given. Defaulting to %d.\n", update_every, UPDATE_EVERY_MAX);\r
update_every = UPDATE_EVERY;\r
}\r
else {\r
else if(strcmp(argv[i], "-p") == 0 && (i+1) < argc) {\r
listen_port = atoi(argv[i+1]);\r
if(listen_port < 1 || listen_port > 65535) {\r
- error("Invalid listen port %d given. Defaulting to %d.", listen_port, LISTEN_PORT);\r
+ fprintf(stderr, "Invalid listen port %d given. Defaulting to %d.\n", listen_port, LISTEN_PORT);\r
listen_port = LISTEN_PORT;\r
}\r
else {\r
fprintf(stderr, "\nUSAGE: %s [-d] [-l LINES_TO_SAVE] [-u UPDATE_TIMER] [-p LISTEN_PORT].\n\n", argv[0]);\r
fprintf(stderr, " -d enable daemon mode (run in background).\n");\r
fprintf(stderr, " -l LINES_TO_SAVE can be from 5 to %d lines in JSON data. Default: %d.\n", HISTORY_MAX, HISTORY);\r
- fprintf(stderr, " -u UPDATE_TIMER can be from 1 to %d seconds. Default: %d.\n", UPDATE_EVERY_MAX, UPDATE_EVERY);\r
+ fprintf(stderr, " -t UPDATE_TIMER can be from 1 to %d seconds. Default: %d.\n", UPDATE_EVERY_MAX, UPDATE_EVERY);\r
fprintf(stderr, " -p LISTEN_PORT can be from 1 to %d. Default: %d.\n", 65535, LISTEN_PORT);\r
+ fprintf(stderr, " -u USERNAME can be any system username to run as. Default: none.\n");\r
exit(1);\r
}\r
}\r
\r
+ // never become a problem\r
+ if(nice(20) == -1) {\r
+ fprintf(stderr, "Cannot lower my CPU priority. Error %s.\n", strerror(errno));\r
+ }\r
+\r
if(daemon) {\r
i = fork();\r
if(i == -1) {\r
perror("cannot fork");\r
exit(1);\r
}\r
- if(i != 0) exit(0); // the parent\r
+ if(i != 0) {\r
+ fprintf(stderr, "Running in the background...\n");\r
+ exit(0); // the parent\r
+ }\r
close(0);\r
close(1);\r
close(2);\r
base="`dirname "$0"`"
-if [ ! -d "$base" -o ! -f "$base/netdata.c" ]
+if [ ! -d "$base" -o ! -f "$base/netdata.c" -o ! -d "$base/web" ]
then
echo >&2 "Cannot find my home directory '${base}'."
exit 1
# when refreshes graphs
NETDATA_CONFIG_RELOAD_EVERY=500
+# the user to run netdata under
+NETDATA_CONFIG_USER=nobody
+
+# set to 1, to enable debugging
+NETDATA_CONFIG_DEBUG=0
+
+# our port
+NETDATA_CONFIG_PORT=19999
+
+# get user configuration
if [ -f netdata.conf ]
then
source netdata.conf
# how many history lines to keep in netdata
NETDATA_HISTORY_LINES=$[NETDATA_CONFIG_UPDATE_EVERY * NETDATA_CONFIG_HISTORY_POINTS / NETDATA_CONFIG_INTERNAL_UPDATE_EVERY]
-echo "Creating a directory for netdata..."
-data=
-for x in /run/netdata /var/run/netdata /tmp/netdata
-do
- echo " Trying '${x}'..."
- if [ ! -d "${x}" ]
- then
- mkdir "${x}" 2>/dev/null
- if [ $? -eq 0 ]
- then
- echo " OK. '${x}' works."
- data="${x}"
- break
- fi
- else
- echo " OK. '${x}' works."
- data="${x}"
- break
- fi
-done
-
-if [ -z "${data}" ]
-then
- echo >&2 "Cannot find where to put netdata files."
- exit 1
-fi
-
-if [ -h data ]
-then
- echo "Removing existing $base/data link"
- rm data || exit 1
-fi
-
-if [ ! -d data ]
-then
- echo "Linking '${data}' to $base/data"
- ln -s "${data}" data || exit 1
-else
- echo >&2 "Directory $base/data already exists. Not touching it, however it should be a link '${data}'."
-fi
-
-cp "${base}/all.xsl" "${data}/"
-cp "${base}/netdata.js" "${data}/"
-cp "${base}/tc-all.sh" "${data}/"
-chmod 700 "${data}/tc-all.sh"
-
-echo "Finding proper parameters for dashboard..."
-
echo "Stopping a (possibly) running netdata..."
killall netdata 2>/dev/null
killall tc-all.sh 2>/dev/null
-
sleep 2
echo "Compiling netdata"
-# gcc -Wall -O3 -o netdata netdata.c -lpthread || exit 1
-gcc -Wall -ggdb -o netdata netdata.c -lpthread || exit 1
+if [ $NETDATA_CONFIG_DEBUG -eq 1 ]
+then
+ ulimit -c unlimited
+ gcc -Wall -ggdb -o netdata netdata.c -lpthread || exit 1
+else
+ gcc -Wall -O3 -o netdata netdata.c -lpthread || exit 1
+fi
echo "Starting netdata"
-p=`pwd`
-cd data
-ulimit -c unlimited
-$p/netdata -d -u $NETDATA_CONFIG_INTERNAL_UPDATE_EVERY -l $NETDATA_HISTORY_LINES || exit 1
-cd "$p"
-
+if [ "$USER" = "root" ]
+then
+ chown -R "$NETDATA_CONFIG_USER" web || exit 1
+ chmod 0775 web || exit 1
+ chmod -R 0664 web/* || exit 1
+ ./netdata -d -u $NETDATA_CONFIG_USER -t $NETDATA_CONFIG_INTERNAL_UPDATE_EVERY -l $NETDATA_HISTORY_LINES -p $NETDATA_CONFIG_PORT || exit 1
+else
+ echo >&2 "WARNING: NOT RUNNING AS ROOT - CANNOT SWITCH TO USER $NETDATA_CONFIG_USER"
+ echo >&2 "WARNING: MAKE SURE FILES IN web/ ARE OWNED BY $USER - or it will not work"
+ ./netdata -d -t $NETDATA_CONFIG_INTERNAL_UPDATE_EVERY -l $NETDATA_HISTORY_LINES -p $NETDATA_CONFIG_PORT || exit 1
+fi
sleep 2
# count all graphs
-all=`wget http://127.0.0.1:19999/list -O - 2>/dev/null`
+all=`wget http://127.0.0.1:$NETDATA_CONFIG_PORT/list -O - 2>/dev/null`
count=0
for x in $all
do
echo "We have $count graphs..."
-echo "Generating ${data}/index.html"
+echo "Generating web/index.html"
host="`hostname`"
-cat >${data}/index.html <<EOF
+cat >web/index.html <<EOF
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<style>
eval "p=\${NETDATA_PRIORITY_${y}}"
if [ ! "$p" = "IGNORE" ]
then
- cat >>${data}/index.html <<EOF2
+ cat >>web/index.html <<EOF2
addChart('${x}', '${y}_div', 0, 0, "data/${x}/${NETDATA_CONFIG_HISTORY_POINTS}/${NETDATA_CONFIG_UPDATE_EVERY}/average/", "${title}${t} (${x})", "${vtitle}");
EOF2
fi
done
-cat >>${data}/index.html <<EOF3
+cat >>web/index.html <<EOF3
refreshCharts(999999);
}
for x in `cat "${tmp}" | sort`
do
n="`echo "$x" | cut -d '|' -f 2-`"
- cat >>${data}/index.html <<EOF4
+ cat >>web/index.html <<EOF4
<div id="${n}_div"></div>
EOF4
done
rm -f "${tmp}"
-cat >>${data}/index.html <<EOF5
+cat >>web/index.html <<EOF5
</body>
</html>
EOF5
-set|grep ^NETDATA_ >netdata.conf
-
-if [ ! -h "${data}/data" ]
+if [ "$USER" = "root" ]
then
- cd "${data}"
- ln -s . data
+ chown -R "$NETDATA_CONFIG_USER" web || exit 1
+ chmod 0775 web || exit 1
+ chmod -R 0664 web/* || exit 1
fi
-echo "All Done."
-echo "Just hit http://127.0.0.1:19999/ from your browser."
+# save config back
+set|grep ^NETDATA_ >netdata.conf
+echo "All Done."
+echo "Just hit http://127.0.0.1:$NETDATA_CONFIG_PORT/ from your browser."
+echo
+echo "You can edit config options in file netdata.conf"
+echo
projects / netdata.git / commitdiff