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Added the functionality of Preserved Comments in cupsd.conf when cups… #640

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Added the functionality of Preserved Comments in cupsd.conf when cups… #640

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4d13be6
Added the functionality of Preserved Comments in cupsd.conf when cups…
Ankit3002 Mar 22, 2023
b9c57d1
Done some changes in cupsFileGetConf() to preserve conmments in cupsd…
Ankit3002 Mar 22, 2023
ccf71a9
Added: Private Api to read comments and configuration from cupsd.conf
Ankit3002 Mar 29, 2023
d999b0d
Fixed : Coding Style issues
Ankit3002 Apr 1, 2023
1c0ae05
Updated: cupsd.conf.in
Ankit3002 Apr 3, 2023
d08c54f
Added: Support to read inline comments from cupsd.conf
Ankit3002 Apr 5, 2023
0a6b3b3
Simplified : _cupsFileGetConfAndComments function logic
Ankit3002 Apr 6, 2023
d351867
Fixed: Coding style issues
Ankit3002 Apr 13, 2023
d92236a
Fixed: Coding Style Issues
Ankit3002 Apr 13, 2023
f241386
Simplified: _cupsFileGetConfAndComments()
Ankit3002 Apr 16, 2023
952fd3f
Fixed: Missing handling of escaped #
Ankit3002 Apr 16, 2023
7470d73
Added: escaped # support
Ankit3002 Apr 17, 2023
d9c1986
Fixed: Coding Style Issues
Ankit3002 Apr 19, 2023
04b6730
Fixed coding style issues
Ankit3002 Apr 19, 2023
07e9450
Added : Private Api for Striping Inline Comment
Ankit3002 Jun 2, 2023
5150a47
Added : Debug Statement for cupsFileStripComment
Ankit3002 Jun 3, 2023
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20 changes: 14 additions & 6 deletions conf/cupsd.conf.in
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Original file line number Diff line number Diff line change
Expand Up @@ -3,8 +3,7 @@
# complete description of this file.
#

# Log general information in error_log - change "@CUPS_LOG_LEVEL@" to "debug"
# for troubleshooting...
# Set LogLevel to debug for turning on troubleshooting
LogLevel @CUPS_LOG_LEVEL@
@CUPS_PAGE_LOG_FORMAT@

Expand All @@ -31,26 +30,35 @@ WebInterface @CUPS_WEBIF@
# Timeout after cupsd exits if idle (applied only if cupsd runs on-demand - with -l)
IdleExitTimeout @EXIT_TIMEOUT@

# Restrict access to the server...
# Access to the server root (/):
# - default action defined by 'Order', see 'man cupsd.conf'
# - use 'Allow'/'Deny' for configuring access
# - allowing access is required for printer sharing or remote administration
<Location />
Order allow,deny
</Location>

# Restrict access to the admin pages...
# Access to the admin pages:
# - default action defined by Order', see 'man cupsd.conf'
# - use 'Allow'/'Deny' for configuring access
<Location /admin>
AuthType Default
Require user @SYSTEM
Order allow,deny
</Location>

# Restrict access to configuration files...
# Access to the configuration files:
# - default action defined by Order', see 'man cupsd.conf'
# - use 'Allow'/'Deny' for configuring access
<Location /admin/conf>
AuthType Default
Require user @SYSTEM
Order allow,deny
</Location>

# Restrict access to log files...
# Access to the log files:
# - default action defined by Order', see 'man cupsd.conf'
# - use 'Allow'/'Deny' for configuring access
<Location /admin/log>
AuthType Default
Require user @SYSTEM
Expand Down
100 changes: 10 additions & 90 deletions cups/adminutil.c
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Original file line number Diff line number Diff line change
Expand Up @@ -698,9 +698,14 @@ cupsAdminSetServerSettings(
if (server_port <= 0)
server_port = IPP_PORT;

while (cupsFileGetConf(cupsd, line, sizeof(line), &value, &linenum))
while (_cupsFileGetConfAndComments(cupsd, line, sizeof(line), &value, &linenum))
{
if ((!_cups_strcasecmp(line, "Port") || !_cups_strcasecmp(line, "Listen")) &&
/*
* Preserve empty lines...
*/
if (!line[0])
cupsFilePuts(temp, "\n");
else if ((!_cups_strcasecmp(line, "Port") || !_cups_strcasecmp(line, "Listen")) &&
(remote_admin >= 0 || remote_any >= 0 || share_printers >= 0))
{
if (!wrote_port_listen)
Expand All @@ -709,13 +714,10 @@ cupsAdminSetServerSettings(

if (remote_admin > 0 || remote_any > 0 || share_printers > 0)
{
cupsFilePuts(temp, "# Allow remote access\n");
cupsFilePrintf(temp, "Port %d\n", server_port);
}
else
{
cupsFilePuts(temp, "# Only listen for connections from the local "
"machine.\n");
cupsFilePrintf(temp, "Listen localhost:%d\n", server_port);
}

Expand Down Expand Up @@ -749,7 +751,6 @@ cupsAdminSetServerSettings(
localp = cupsGetOption("BrowseLocalProtocols", cupsd_num_settings,
cupsd_settings);

cupsFilePuts(temp, "# Share local printers on the local network.\n");
cupsFilePuts(temp, "Browsing On\n");

if (!localp)
Expand All @@ -763,7 +764,6 @@ cupsAdminSetServerSettings(
}
else
{
cupsFilePuts(temp, "# Disable printer sharing.\n");
cupsFilePuts(temp, "Browsing Off\n");
}
}
Expand All @@ -774,13 +774,10 @@ cupsAdminSetServerSettings(

if (debug_logging)
{
cupsFilePuts(temp,
"# Show troubleshooting information in error_log.\n");
cupsFilePuts(temp, "LogLevel debug\n");
}
else
{
cupsFilePuts(temp, "# Show general information in error_log.\n");
cupsFilePuts(temp, "LogLevel " CUPS_DEFAULT_LOG_LEVEL "\n");
}
}
Expand All @@ -800,9 +797,7 @@ cupsAdminSetServerSettings(
wrote_policy = 1;

if (!user_cancel_any)
cupsFilePuts(temp, " # Only the owner or an administrator can "
"cancel a job...\n"
" <Limit Cancel-Job>\n"
cupsFilePuts(temp, " <Limit Cancel-Job>\n"
" Order deny,allow\n"
" Require user @OWNER "
CUPS_DEFAULT_PRINTOPERATOR_AUTH "\n"
Expand Down Expand Up @@ -837,11 +832,6 @@ cupsAdminSetServerSettings(
{
wrote_admin_location = 1;

if (remote_admin)
cupsFilePuts(temp, " # Allow remote administration...\n");
else
cupsFilePuts(temp, " # Restrict access to the admin pages...\n");

cupsFilePuts(temp, " Order allow,deny\n");

if (remote_admin)
Expand All @@ -856,13 +846,6 @@ cupsAdminSetServerSettings(
{
wrote_conf_location = 1;

if (remote_admin)
cupsFilePuts(temp, " # Allow remote access to the configuration "
"files...\n");
else
cupsFilePuts(temp, " # Restrict access to the configuration "
"files...\n");

cupsFilePuts(temp, " Order allow,deny\n");

if (remote_admin)
Expand All @@ -877,13 +860,6 @@ cupsAdminSetServerSettings(
{
wrote_log_location = 1;

if (remote_admin)
cupsFilePuts(temp, " # Allow remote access to the log "
"files...\n");
else
cupsFilePuts(temp, " # Restrict access to the log "
"files...\n");

cupsFilePuts(temp, " Order allow,deny\n");

if (remote_admin)
Expand All @@ -899,18 +875,6 @@ cupsAdminSetServerSettings(
{
wrote_root_location = 1;

if (remote_admin > 0 && share_printers > 0)
cupsFilePuts(temp, " # Allow shared printing and remote "
"administration...\n");
else if (remote_admin > 0)
cupsFilePuts(temp, " # Allow remote administration...\n");
else if (share_printers > 0)
cupsFilePuts(temp, " # Allow shared printing...\n");
else if (remote_any > 0)
cupsFilePuts(temp, " # Allow remote access...\n");
else
cupsFilePuts(temp, " # Restrict access to the server...\n");

cupsFilePuts(temp, " Order allow,deny\n");

if (remote_admin > 0 || remote_any > 0 || share_printers > 0)
Expand Down Expand Up @@ -991,9 +955,7 @@ cupsAdminSetServerSettings(
wrote_policy = 1;

if (!user_cancel_any)
cupsFilePuts(temp, " # Only the owner or an administrator can cancel "
"a job...\n"
" <Limit Cancel-Job>\n"
cupsFilePuts(temp, " <Limit Cancel-Job>\n"
" Order deny,allow\n"
" Require user @OWNER "
CUPS_DEFAULT_PRINTOPERATOR_AUTH "\n"
Expand Down Expand Up @@ -1069,12 +1031,10 @@ cupsAdminSetServerSettings(
{
if (share_printers > 0)
{
cupsFilePuts(temp, "# Share local printers on the local network.\n");
cupsFilePuts(temp, "Browsing On\n");
}
else
{
cupsFilePuts(temp, "# Disable printer sharing and shared printers.\n");
cupsFilePuts(temp, "Browsing Off\n");
}
}
Expand All @@ -1083,12 +1043,10 @@ cupsAdminSetServerSettings(
{
if (debug_logging)
{
cupsFilePuts(temp, "# Show troubleshooting information in error_log.\n");
cupsFilePuts(temp, "LogLevel debug\n");
}
else
{
cupsFilePuts(temp, "# Show general information in error_log.\n");
cupsFilePuts(temp, "LogLevel " CUPS_DEFAULT_LOG_LEVEL "\n");
}
}
Expand All @@ -1098,13 +1056,10 @@ cupsAdminSetServerSettings(
{
if (remote_admin > 0 || remote_any > 0 || share_printers > 0)
{
cupsFilePuts(temp, "# Allow remote access\n");
cupsFilePrintf(temp, "Port %d\n", ippPort());
}
else
{
cupsFilePuts(temp,
"# Only listen for connections from the local machine.\n");
cupsFilePrintf(temp, "Listen localhost:%d\n", ippPort());
}

Expand All @@ -1117,18 +1072,6 @@ cupsAdminSetServerSettings(
if (!wrote_root_location &&
(remote_admin >= 0 || remote_any >= 0 || share_printers >= 0))
{
if (remote_admin > 0 && share_printers > 0)
cupsFilePuts(temp,
"# Allow shared printing and remote administration...\n");
else if (remote_admin > 0)
cupsFilePuts(temp, "# Allow remote administration...\n");
else if (share_printers > 0)
cupsFilePuts(temp, "# Allow shared printing...\n");
else if (remote_any > 0)
cupsFilePuts(temp, "# Allow remote access...\n");
else
cupsFilePuts(temp, "# Restrict access to the server...\n");

cupsFilePuts(temp, "<Location />\n"
" Order allow,deny\n");

Expand All @@ -1140,11 +1083,6 @@ cupsAdminSetServerSettings(

if (!wrote_admin_location && remote_admin >= 0)
{
if (remote_admin)
cupsFilePuts(temp, "# Allow remote administration...\n");
else
cupsFilePuts(temp, "# Restrict access to the admin pages...\n");

cupsFilePuts(temp, "<Location /admin>\n"
" Order allow,deny\n");

Expand All @@ -1156,12 +1094,6 @@ cupsAdminSetServerSettings(

if (!wrote_conf_location && remote_admin >= 0)
{
if (remote_admin)
cupsFilePuts(temp,
"# Allow remote access to the configuration files...\n");
else
cupsFilePuts(temp, "# Restrict access to the configuration files...\n");

cupsFilePuts(temp, "<Location /admin/conf>\n"
" AuthType Default\n"
" Require user @SYSTEM\n"
Expand All @@ -1175,12 +1107,6 @@ cupsAdminSetServerSettings(

if (!wrote_log_location && remote_admin >= 0)
{
if (remote_admin)
cupsFilePuts(temp,
"# Allow remote access to the log files...\n");
else
cupsFilePuts(temp, "# Restrict access to the log files...\n");

cupsFilePuts(temp, "<Location /admin/log>\n"
" AuthType Default\n"
" Require user @SYSTEM\n"
Expand All @@ -1195,8 +1121,6 @@ cupsAdminSetServerSettings(
if (!wrote_policy && user_cancel_any >= 0)
{
cupsFilePuts(temp, "<Policy default>\n"
" # Job-related operations must be done by the owner "
"or an administrator...\n"
" <Limit Send-Document Send-URI Hold-Job Release-Job "
"Restart-Job Purge-Jobs Set-Job-Attributes "
"Create-Job-Subscription Renew-Subscription "
Expand All @@ -1206,8 +1130,6 @@ cupsAdminSetServerSettings(
" Require user @OWNER @SYSTEM\n"
" Order deny,allow\n"
" </Limit>\n"
" # All administration operations require an "
"administrator to authenticate...\n"
" <Limit Pause-Printer Resume-Printer "
"Set-Printer-Attributes Enable-Printer "
"Disable-Printer Pause-Printer-After-Current-Job "
Expand All @@ -1224,9 +1146,7 @@ cupsAdminSetServerSettings(
"</Limit>\n");

if (!user_cancel_any)
cupsFilePuts(temp, " # Only the owner or an administrator can cancel "
"a job...\n"
" <Limit Cancel-Job>\n"
cupsFilePuts(temp, " <Limit Cancel-Job>\n"
" Order deny,allow\n"
" Require user @OWNER "
CUPS_DEFAULT_PRINTOPERATOR_AUTH "\n"
Expand Down
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