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add comments about X-Headers and further explain the file descriptor cod.

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This commit is contained in:
Jacob Salmela 2017-06-29 11:37:58 -05:00
parent 04cef25add
commit 1957b002bc
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GPG Key ID: 1962FF1A5046135E
1 changed files with 12 additions and 3 deletions
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15
advanced/Scripts/piholeDebug.sh
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@ -180,7 +180,8 @@ make_temporary_log() {
# https://stackoverflow.com/questions/18460186/writing-outputs-to-log-file-and-console
exec 3>"$TEMPLOG"
# Delete templog, but allow for addressing via file handle
# This lets us write to the log without having a temporary file on the drive
# This lets us write to the log without having a temporary file on the drive, which
# is meant to be a security measure so there is not a lingering file on the drive during the debug process
rm "$TEMPLOG"
}
@ -190,8 +191,12 @@ log_write() {
}
copy_to_debug_log() {
# Copy the contents of file descriptor 3 into the debug log so it can be uploaded to tricorder
# Copy the contents of file descriptor 3 into the debug log
cat /proc/$$/fd/3 > "${PIHOLE_DEBUG_LOG}"
# Since we use color codes such as '\e[1;33m', they should be removed before being
# uploaded to our server, since it can't properly display in color
# This is accomplished by use sed to remove characters matching that patter
# The entire file is then copied over to a sanitized version of the log
sed 's/\[[0-9;]\{1,5\}m//g' > "${PIHOLE_DEBUG_LOG_SANITIZED}" <<< cat "${PIHOLE_DEBUG_LOG}"
}
@ -637,6 +642,10 @@ check_networking() {
check_x_headers() {
# The X-Headers allow us to determine from the command line if the Web
# lighttpd.conf has a directive to show "X-Pi-hole: A black hole for Internet advertisements."
# in the header of any Pi-holed domain
# Similarly, it will show "X-Pi-hole: The Pi-hole Web interface is working!" if you view the header returned
# when accessing the dashboard (i.e curl -I pi.hole/admin/)
# server is operating correctly
echo_current_diagnostic "Dashboard and block page"
# Use curl -I to get the header and parse out just the X-Pi-hole one
@ -1061,9 +1070,9 @@ upload_to_tricorder() {
# Run through all the functions we made
make_temporary_log
initiate_debug
# setupVars.conf needs to be sourced before the networking so the values are
# available to the other functions
initiate_debug
source_setup_variables
check_component_versions
check_critical_program_versions