diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..a43ea21 --- /dev/null +++ b/COPYING @@ -0,0 +1,339 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 675 Mass Ave, Cambridge, MA 02139, USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Library General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +this service if you wish), that you receive source code or can get it +if you want it, that you can change the software or use pieces of it +in new free programs; and that you know you can do these things. + + To protect your rights, we need to make restrictions that forbid +anyone to deny you these rights or to ask you to surrender the rights. +These restrictions translate to certain responsibilities for you if you +distribute copies of the software, or if you modify it. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must give the recipients all the rights that +you have. You must make sure that they, too, receive or can get the +source code. And you must show them these terms so they know their +rights. + + We protect your rights with two steps: (1) copyright the software, and +(2) offer you this license which gives you legal permission to copy, +distribute and/or modify the software. + + Also, for each author's protection and ours, we want to make certain +that everyone understands that there is no warranty for this free +software. If the software is modified by someone else and passed on, we +want its recipients to know that what they have is not the original, so +that any problems introduced by others will not reflect on the original +authors' reputations. + + Finally, any free program is threatened constantly by software +patents. We wish to avoid the danger that redistributors of a free +program will individually obtain patent licenses, in effect making the +program proprietary. To prevent this, we have made it clear that any +patent must be licensed for everyone's free use or not licensed at all. + + The precise terms and conditions for copying, distribution and +modification follow. + + GNU GENERAL PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. This License applies to any program or other work which contains +a notice placed by the copyright holder saying it may be distributed +under the terms of this General Public License. The "Program", below, +refers to any such program or work, and a "work based on the Program" +means either the Program or any derivative work under copyright law: +that is to say, a work containing the Program or a portion of it, +either verbatim or with modifications and/or translated into another +language. (Hereinafter, translation is included without limitation in +the term "modification".) Each licensee is addressed as "you". + +Activities other than copying, distribution and modification are not +covered by this License; they are outside its scope. The act of +running the Program is not restricted, and the output from the Program +is covered only if its contents constitute a work based on the +Program (independent of having been made by running the Program). +Whether that is true depends on what the Program does. + + 1. You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. You may modify your copy or copies of the Program or any portion +of it, thus forming a work based on the Program, and copy and +distribute such modifications or work under the terms of Section 1 +above, provided that you also meet all of these conditions: + + a) You must cause the modified files to carry prominent notices + stating that you changed the files and the date of any change. + + b) You must cause any work that you distribute or publish, that in + whole or in part contains or is derived from the Program or any + part thereof, to be licensed as a whole at no charge to all third + parties under the terms of this License. + + c) If the modified program normally reads commands interactively + when run, you must cause it, when started running for such + interactive use in the most ordinary way, to print or display an + announcement including an appropriate copyright notice and a + notice that there is no warranty (or else, saying that you provide + a warranty) and that users may redistribute the program under + these conditions, and telling the user how to view a copy of this + License. (Exception: if the Program itself is interactive but + does not normally print such an announcement, your work based on + the Program is not required to print an announcement.) + +These requirements apply to the modified work as a whole. If +identifiable sections of that work are not derived from the Program, +and can be reasonably considered independent and separate works in +themselves, then this License, and its terms, do not apply to those +sections when you distribute them as separate works. But when you +distribute the same sections as part of a whole which is a work based +on the Program, the distribution of the whole must be on the terms of +this License, whose permissions for other licensees extend to the +entire whole, and thus to each and every part regardless of who wrote it. + +Thus, it is not the intent of this section to claim rights or contest +your rights to work written entirely by you; rather, the intent is to +exercise the right to control the distribution of derivative or +collective works based on the Program. + +In addition, mere aggregation of another work not based on the Program +with the Program (or with a work based on the Program) on a volume of +a storage or distribution medium does not bring the other work under +the scope of this License. + + 3. You may copy and distribute the Program (or a work based on it, +under Section 2) in object code or executable form under the terms of +Sections 1 and 2 above provided that you also do one of the following: + + a) Accompany it with the complete corresponding machine-readable + source code, which must be distributed under the terms of Sections + 1 and 2 above on a medium customarily used for software interchange; or, + + b) Accompany it with a written offer, valid for at least three + years, to give any third party, for a charge no more than your + cost of physically performing source distribution, a complete + machine-readable copy of the corresponding source code, to be + distributed under the terms of Sections 1 and 2 above on a medium + customarily used for software interchange; or, + + c) Accompany it with the information you received as to the offer + to distribute corresponding source code. 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Each time you redistribute the Program (or any work based on the +Program), the recipient automatically receives a license from the +original licensor to copy, distribute or modify the Program subject to +these terms and conditions. You may not impose any further +restrictions on the recipients' exercise of the rights granted herein. +You are not responsible for enforcing compliance by third parties to +this License. + + 7. If, as a consequence of a court judgment or allegation of patent +infringement or for any other reason (not limited to patent issues), +conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot +distribute so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you +may not distribute the Program at all. For example, if a patent +license would not permit royalty-free redistribution of the Program by +all those who receive copies directly or indirectly through you, then +the only way you could satisfy both it and this License would be to +refrain entirely from distribution of the Program. + +If any portion of this section is held invalid or unenforceable under +any particular circumstance, the balance of the section is intended to +apply and the section as a whole is intended to apply in other +circumstances. + +It is not the purpose of this section to induce you to infringe any +patents or other property right claims or to contest validity of any +such claims; this section has the sole purpose of protecting the +integrity of the free software distribution system, which is +implemented by public license practices. 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The Free Software Foundation may publish revised and/or new versions +of the General Public License from time to time. Such new versions will +be similar in spirit to the present version, but may differ in detail to +address new problems or concerns. + +Each version is given a distinguishing version number. If the Program +specifies a version number of this License which applies to it and "any +later version", you have the option of following the terms and conditions +either of that version or of any later version published by the Free +Software Foundation. If the Program does not specify a version number of +this License, you may choose any version ever published by the Free Software +Foundation. + + 10. If you wish to incorporate parts of the Program into other free +programs whose distribution conditions are different, write to the author +to ask for permission. For software which is copyrighted by the Free +Software Foundation, write to the Free Software Foundation; we sometimes +make exceptions for this. Our decision will be guided by the two goals +of preserving the free status of all derivatives of our free software and +of promoting the sharing and reuse of software generally. + + NO WARRANTY + + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS +TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE +PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, +REPAIR OR CORRECTION. + + 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE +POSSIBILITY OF SUCH DAMAGES. + + END OF TERMS AND CONDITIONS + + Appendix: How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) 19yy + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) 19yy name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/FAQ b/FAQ new file mode 100644 index 0000000..0a9aa76 --- /dev/null +++ b/FAQ @@ -0,0 +1,71 @@ +$Id: FAQ,v 1.3 2001/12/17 17:30:36 kas Exp $ + +Q: What is this? +A: The mrtg-rrd.cgi scripts is a replacement for the 14all.cgi script + distributed in the MRTG contrib directory. It is the script + which can generate on-the-fly HTML output and graph images + from the MRTG statistics. + +Q: Why not let MRTG to generate the graphs? +A: It is much slower to generate thousands of graphs every 5 minutes instead + of generating them only when somebody is looking at them. This + script (mrtg-rrd.cgi) uses the '--lazy' option of RRDtool, so images + are generated only every 5 minutes even if somebody is looking at + the statistics more frequently. + +Q: Do I need an additional software? +A: You need the MRTG itself, and the RRDtool (see the + http://people.ee.ethz.ch/~oetiker/webtools/mrtg/ and + http://people.ee.ethz.ch/~oetiker/webtools/rrdtool/ directories). + +Q: How to use this? +A: Just put the mrtg-rrd.cgi somewhere into your WWW tree, where the CGI + scripts can be executed (such as /var/www/cgi-bin/ directory), + and edit the line which says "BEGIN { @config_files = }" + to reflect all your MRTG config files (yes it can handle multiple + config files as long as the target names are unique). Make sure + the ImageDir (or the default WorkDir) is set to a directory writable + by the HTTP server. + +Q: How to get the actual output? +A: Point your browser to the http://your.server/cgi-bin/mrtg-rrd.cgi/ezwf.html + (no question marks or ampesands here; just add the slash after the + CGI name, then your resource name -- ezwf here -- and a ".html" + extension). + +Q1: It is slow. How can I speed it up? +Q2: I want to use FastCGI/mod_perl/Apache::Registry. I don't want to use CGI. +A: The mrtg-rrd.cgi is written in a mod_perl friendly way. It can be + run as a FastCGI, mod_perl or Apache::Registry. The script itself + tries to precompute everything once (i.e. the parsing of mrtg.cfg) + and then only perform the actual computations. If you want to run it + under a different environment than CGI, just create the $q object + with the path_info() method, and then call a handler($q) subroutine + (see the bottom of the script for an example). + +Q: Can it fully emulate the MRTG behaviour? +A: No, but it understands a very large subset of MRTG directives. See the + file TODO for the list of unimplemented directives. Everything + else (described in the MRTG reference.1 manpage) should be + implemented. You are welcome to contribute any improvements. + +Q: Why to develop another 14all.cgi? +A: This script tries to produce its output as much similar to the original + MRTG output as possible. It also implements (I believe) much bigger + subset of MRTG configuration directives than 14all.cgi. On the other + hand, it doesn't do the directory index files (yet). + +Q: Where can I find the newest version? +A: Look at http://www.fi.muni.cz/~kas/mrtg-rrd/ - this is the project home + page. You can also look at the FTP directory - + ftp://ftp.linux.cz/pub/linux/people/jan_kasprzak/mrtg-rrd/ + +Q: Can I modify this script? +A: Yes, it is distributed under the terms of GNU GPL. However, if you fix + a bug in this script, please consider contributing the fix back + to the author (use the "diff -u" command for generating patch). + +Q: Who is the author? +A: This script was written by Jan "Yenya" Kasprzak . + See http://www.fi.muni.cz/~kas/ page for details and other projects. + diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..dbca3b3 --- /dev/null +++ b/Makefile @@ -0,0 +1,25 @@ +# $Id: Makefile,v 1.1 2001/12/17 15:38:07 kas Exp $ + +FILES = COPYING FAQ TODO Makefile mrtg-rrd.cgi + +TARGETS = mrtg-rrd.fcgi + +VERSION = 0.1 + +all: $(TARGETS) + +mrtg-rrd.fcgi: mrtg-rrd.cgi + -rm -f mrtg-rrd.fcgi + sed -e '/^#--BEGIN CGI--/,/^#--END CGI--/d' -e '/^#--BEGIN FCGI--/,/^#--END FCGI--/s/^#-# //' mrtg-rrd.fcgi + chmod +x mrtg-rrd.fcgi + +clean: + -rm -f $(TARGETS) + +dist: + rm -rf mrtg-rrd-$(VERSION) + mkdir mrtg-rrd-$(VERSION) + cp $(FILES) mrtg-rrd-$(VERSION) + tar cf - mrtg-rrd-$(VERSION) | gzip -9 > mrtg-rrd-$(VERSION).tar.gz + -rm -rf mrtg-rrd-$(VERSION) + diff --git a/TODO b/TODO new file mode 100644 index 0000000..32e41e4 --- /dev/null +++ b/TODO @@ -0,0 +1,40 @@ +$Id: TODO,v 1.1 2001/12/17 15:06:37 kas Exp $ + +Unimplemented mrtg.cfg directives +================================= + +Htmldir: (it is determined by the .cgi location); no static HTML is generated +NoMib2: (and displaying system uptime) I don't want to query routers from + the CGI. +Language: TODO +Libadd: (handled separately) Don't want to mess with more BEGIN{} statements. +RouterUptime: I don't want to query the routers from the CGI. +Unscaled: don't know how to tell this to rrdgraph +WithPeak: don't know how to tell this to rrdgraph +Extension: (has no meaning) +Directory: (partly implemented - reads the directive, but it is not visible in URL) +XZoom: don't know how to tell this to rrdgraph +YZoom: don't know how to tell this to rrdgraph +YTics: don't know how to tell this to rrdgraph +YTicsFactor: don't know how to tell this to rrdgraph +Step: don't know what this should do +Option: + growright: it is the default (don't know how to make growleft grapsh) + noi: TODO + noo: TODO +SetEnv: Makes sense only for Target[]. Not implemented. +Weekformat: Dont know how to do this + + +Other TODO/missing items +======================== + +Option for setting the image format (PNG/GIF). + +Directory/all graphs listing. + +Exact time of the previous VRULE (for month and year graphs). + +The MRTG-like legend on the X axis of the daily graph (every 2nd hour + instead of every 6th our and ":00" appended). + diff --git a/mrtg-rrd.cgi b/mrtg-rrd.cgi new file mode 100755 index 0000000..e8b199a --- /dev/null +++ b/mrtg-rrd.cgi @@ -0,0 +1,712 @@ +#!/usr/bin/perl -w +# +# $Id: mrtg-rrd.cgi,v 1.3 2001/12/17 17:17:42 kas Exp $ +# +# mrtg-rrd.cgi: The script for generating graphs for MRTG statistics. +# +# Loosely modelled after the Rainer.Bawidamann@informatik.uni-ulm.de's +# 14all.cgi +# +# Copyright (C) 2001 Jan "Yenya" Kasprzak +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +# + +use strict; + +use POSIX qw(strftime); + +# Location of RRDs.pm, if it is not in @INC +use lib '/usr/lib/perl5/5.00503/i386-linux'; +use RRDs; + +use vars qw(@config_files @all_config_files %targets %config $config_time); + +# EDIT THIS to reflect all your MRTG config files +BEGIN { @config_files = qw(/home/fadmin/mrtg/mrtg.cfg); } + +sub handler ($) +{ + my ($q) = @_; + + try_read_config(); + + my ($stat, $ext) = ($q->path_info() =~ + /^\/(.+)(\.html|-(day|week|month|year)\.png)$/); + +# $stat ||= 'ares.fi.muni.cz.eth2'; +# $ext ||= '.html'; + + print_error("Undefined statistics") + unless defined $targets{$stat}; + + my $tgt = $targets{$stat}; + + common_args($stat, $tgt, $q); + + # We may be running under mod_perl or something. Do not destroy + # the original settings of timezone. + my $oldtz; + if (defined $tgt->{timezone}) { + $oldtz = $ENV{TZ}; + $ENV{TZ} = $tgt->{timezone}; + } + + if ($ext eq '.html') { + do_html($tgt); + } elsif ($ext eq '-day.png') { + do_image($tgt, 'day'); + } elsif ($ext eq '-week.png') { + do_image($tgt, 'week'); + } elsif ($ext eq '-month.png') { + do_image($tgt, 'month'); + } elsif ($ext eq '-year.png') { + do_image($tgt, 'year'); + } else { + print_error("Unknown extension"); + } + $ENV{TZ} = $oldtz + if defined $oldtz; +} + +sub do_html($) +{ + my ($tgt) = @_; + + my @day = do_image($tgt, 'day'); + my @week = do_image($tgt, 'week'); + my @month = do_image($tgt, 'month'); + my @year = do_image($tgt, 'year'); + + http_headers('text/html', $tgt); + print <<'EOF'; + + + +EOF + print $tgt->{title} if defined $tgt->{title}; + print "\n"; + + html_comments($tgt, 'd', @{$day[0]}) if $#day != -1; + html_comments($tgt, 'w', @{$week[0]}) if $#week != -1; + html_comments($tgt, 'm', @{$month[0]}) if $#month != -1; + html_comments($tgt, 'y', @{$year[0]}) if $#year != -1; + + print $tgt->{addhead} if defined $tgt->{addhead}; + + print "\n", $tgt->{bodytag}, "\n"; + + print $tgt->{pagetop} if defined $tgt->{pagetop}; + + unless (defined $tgt->{options}{noinfo}) { + my @st = stat $tgt->{rrd}; + + print "
\nThe statistics were last updated ", + strftime("%A, %e %B, %T %Z\n", + localtime($st[9])); + } + + html_graph($tgt, 'day', 'Daily', '5 Minute', \@day); + html_graph($tgt, 'week', 'Weekly', '30 Minute', \@week); + html_graph($tgt, 'month', 'Monthly', '2 Hour', \@month); + html_graph($tgt, 'year', 'Yearly', '1 Day', \@year); + + print <<"EOF" unless defined $tgt->{options}{nolegend}; +
+ + +
+$tgt->{colname1} ###$tgt->{legend1}
+$tgt->{colname2} ###$tgt->{legend2}
+EOF + print <<"EOF" unless defined $tgt->{options}{nobanner}; + +
+ + + + + + +
+ + + + + + + + + + + + +
+version 2.9.17 +Tobias Oetiker +<oetiker\@ee.ethz.ch> +
+Dave Rand <dlr\@bungi.com> +
+mrtg-rrd.cgi version 0.1 + +Jan "Yenya" Kasprzak +<kas\@fi.muni.cz> +
+EOF + print $tgt->{pagefoot} if defined $tgt->{pagefoot}; + print "\n", <<'EOF'; + + +EOF + +} + +sub html_comments($$@) +{ + my ($tgt, $letter, @val) = @_; + + return if $#val == -1; + + print "\n"; + print "\n"; + print "\n"; + print "\n"; + print "\n"; + print "\n"; +} + + +sub html_graph($$$$$) +{ + my ($tgt, $ext, $freq, $period, $params) = @_; + + return unless defined $tgt->{$ext}; + + my @values = @{$params->[0]}; + my $x = $params->[1]; + my $y = $params->[2]; + + $x *= $tgt->{xscale} if defined $tgt->{xscale}; + $y *= $tgt->{yscale} if defined $tgt->{yscale}; + + my $kilo = $tgt->{kilo}; + my @kmg = split(',', $tgt->{kmg}); + + my $fmt; + if (defined $tgt->{options}{integer}) { + $fmt = '%d'; + } else { + $fmt = '%.1lf'; + } + + my @percent = do_percent($tgt, \@values); + + my @nv; + for my $val (@values) { + my @kmg1 = @kmg; + + for my $si (@kmg1) { + if ($val < 10000) { + push @nv, sprintf($fmt, $val) . " $si"; + last; + } + $val /= $kilo; + } + } + @values = @nv; + + print "
\n\`$freq\' Graph ($period Average)
\n"; + + print '', $freq, + ' Graph
', "\n"; + print ''; + print <{legendi} ne ''; + + + + + + + + + + +EOF + print <{legendo} ne ''; + + + + + + + + + +EOF + if (defined $tgt->{options}{dorelpercent}) { + print <<"EOF"; + + + + + + + + + +EOF + } + print <<'EOF'; + +
Max $tgt->{legendi} $values[1]$tgt->{shortlegend}$percent[1]Average $tgt->{legendi} $values[3]$tgt->{shortlegend}$percent[3]Current $tgt->{legendi} $values[5]$tgt->{shortlegend}$percent[5]
Max $tgt->{legendo} $values[0]$tgt->{shortlegend}$percent[0]Average $tgt->{legendo} $values[2]$tgt->{shortlegend}$percent[2]Current $tgt->{legendo} $values[4]$tgt->{shortlegend}$percent[4]
Max  Percentage: $percent[6]Average  Percentage: $percent[7]Current  Percentage: $percent[8]
+EOF +} + +sub do_percent($$) +{ + my ($tgt, $values) = @_; + + my @percent = ('', '', '', '', '', '', '', '', ''); + + return @percent if defined $tgt->{options}{nopercent}; + + for my $val (0..$#$values) { + my $mx = ($val % 2 == 1) ? $tgt->{maxbytes1} : $tgt->{maxbytes2}; + next unless defined $mx; + my $p = sprintf("%.1f", $values->[$val]*100/$mx); + $percent[$val] = ' (' . $p . '%)'; + } + + if (defined $tgt->{options}{dorelpercent}) { + for my $val (0..2) { + $percent[6+$val] = sprintf("%.1f", + $values->[2*$val+1] * 100 / $values->[2*$val]) + if $values->[2*$val] > 0; + $percent[6+$val] ||= 0; + $percent[6+$val] .= ' %'; + } + } + + @percent; +} + +sub http_headers($$) +{ + my ($content_type, $target) = @_; + + print <<"EOF"; +Content-Type: $content_type +Refresh: $config{refresh} +Pragma: no-cache +EOF + # Expires header calculation stolen from CGI.pm + print strftime("Expires: %a, %d %b %Y %H:%M:%S GMT\n", + gmtime(time+$config{interval})); + + print "\n"; +} + +sub do_image($$$) +{ + my ($target, $ext) = @_; + + my $file = $target->{$ext}; + + return unless defined $file; + + # Now the vertical rule at the end of the day + my @t = localtime(time); + $t[0] = $t[1] = $t[2] = 0; + + my $seconds; + my $oldsec; + my $back; + + if ($ext eq 'day') { + $seconds = strftime("%s", @t); + $back = 30*3600; # 30 hours + $oldsec = $seconds - 86400; + } elsif ($ext eq 'week') { + $seconds = strftime("%s", @t); + $t[6] = ($t[6]+6) % 7; + $seconds -= $t[6]*86400; + $back = 8*86400; # 8 days + $oldsec = $seconds - 7*86400; + } elsif ($ext eq 'month') { + $t[3] = 1; + $seconds = strftime("%s", @t); + $back = 36*86400; # 36 days + $oldsec = $seconds - 30*86400; # FIXME (the right # of days!!) + } elsif ($ext eq 'year') { + $t[3] = 1; + $t[4] = 0; + $seconds = strftime("%s", @t); + $back = 396*86400; # 365 + 31 days + $oldsec = $seconds - 365*86400; # FIXME (the right # of days!!) + } else { + print_error("Unknown file extension: $ext"); + } + + my @rv = RRDs::graph($file, '-s', "-$back", @{$target->{args}}, + "VRULE:$oldsec#ff0000", "VRULE:$seconds#ff0000"); + + # In array context just return the values + return @rv if wantarray; + + # Not in array context ==> print out the PNG file. + http_headers('image/png', $target); + + open PNG, "<$file" or print_error("Can't open $file: $!"); + my $buf; + # could be sendfile in Linux ;-) + while(sysread PNG, $buf, 8192) { + print $buf; + } + close PNG; +} + +sub common_args($$$) +{ + my ($name, $target, $q) = @_; + + return @{$target->{args}} if defined @{$target->{args}}; + + $target->{name} = $name; + + if (defined $target->{directory}) { + $target->{directory} .= '/' + unless $target->{directory} =~ /\/$/; + } else { + $target->{directory} = ''; + } + + $target->{url} = $q->url . '/' . $name; + + my $dir = $config{workdir}; + $dir = $config{logdir} + if defined $config{logdir}; + + $target->{rrd} = $dir . '/' . $target->{directory} . $name . '.rrd'; + + %{$target->{options}} = () + unless defined %{$target->{options}}; + + $dir = $config{workdir}; + $dir = $config{imagedir} + if defined $config{imagedir}; + + $target->{suppress} ||= ''; + + $target->{day} = $dir . '/' . $target->{directory} . $name + . '-day.png' unless $target->{suppress} =~ /d/; + $target->{week} = $dir . '/' . $target->{directory} . $name + . '-week.png' unless $target->{suppress} =~ /w/; + $target->{month} = $dir . '/' . $target->{directory} . $name + . '-month.png' unless $target->{suppress} =~ /m/; + $target->{year} = $dir . '/' . $target->{directory} . $name + . '-year.png' unless $target->{suppress} =~ /y/; + + $target->{maxbytes1} = $target->{maxbytes} + if defined $target->{maxbytes} && !defined $target->{maxbytes1}; + + $target->{maxbytes2} = $target->{maxbytes1} + if defined $target->{maxbytes1} && !defined $target->{maxbytes2}; + + my @args = (); + + push @args, '--lazy', '-c', 'FONT#000000', '-c', + 'MGRID#000000', '-c', 'FRAME#000000', + '-g'; + + $target->{background} = '#f5f5f5' + unless defined $target->{background}; + + push @args, '-c', 'BACK'. $target->{background}; + + push @args, '-c', 'SHADEA' . $target->{background}, + '-c', 'SHADEB' . $target->{background} + if defined $target->{options}{noborder}; + + if (defined $target->{options}{noarrow}) { + push @args, '-c', 'ARROW' . $target->{background}; + } else { + push @args, '-c', 'ARROW#000000'; + } + + push @args, '-b', $target->{kilo} + if defined $target->{kilo}; + + push @args, '-w', $target->{xsize} + if defined $target->{xsize}; + + push @args, '-h', $target->{ysize} + if defined $target->{ysize}; + + my $scale = 1; + + if (defined $target->{options}->{perminute}) { + $scale *= 60; + } elsif (defined $target->{options}->{perhour}) { + $scale *= 3600; + } + + if (defined $target->{options}->{bits}) { + $scale *= 8; + $target->{ylegend} = 'Bits per second' + unless defined $target->{ylegend}; + $target->{legend1} = 'Incoming Traffic in Bits per Second' + unless defined $target->{legend1}; + $target->{legend2} = 'Outgoing Traffic in Bits per Second' + unless defined $target->{legend2}; + $target->{shortlegend} = 'b/s' + unless defined $target->{shortlegend}; + } else { + $target->{ylegend} = 'Bytes per second' + unless defined $target->{ylegend}; + $target->{legend1} = 'Incoming Traffic in Bytes per Second' + unless defined $target->{legend1}; + $target->{legend2} = 'Outgoing Traffic in Bytes per Second' + unless defined $target->{legend2}; + $target->{shortlegend} = 'B/s' + unless defined $target->{shortlegend}; + } + + if ($scale > 1) { + push @args, "DEF:in0=$target->{rrd}:ds0:AVERAGE", + "CDEF:in=in0,$scale,*", + "DEF:out0=$target->{rrd}:ds1:AVERAGE", + "CDEF:out=out0,$scale,*"; + } else { + push @args, "DEF:in=$target->{rrd}:ds0:AVERAGE", + "DEF:out=$target->{rrd}:ds1:AVERAGE"; + } + + my $i=1; + for my $coltext (split(/,/, $target->{colours})) { + my ($text, $rgb) = ($coltext =~ /^([^#]+)(#[0-9a-fA-F]{6})$/); + $target->{'col'.$i} = $rgb; + $target->{'colname'.$i} = $text; + $i++; + } + + push @args, '-v', $target->{ylegend}; + + push @args, 'AREA:in' . $target->{col1} . ':In', + 'LINE2:out' . $target->{col2} . ':Out'; + + push @args, 'PRINT:out:MAX:%.1lf', 'PRINT:in:MAX:%.1lf', + 'PRINT:out:AVERAGE:%.1lf', 'PRINT:in:AVERAGE:%.1lf', + 'PRINT:out:LAST:%.1lf', 'PRINT:in:LAST:%.1lf'; + + if (defined $target->{maxbytes1}) { + $target->{maxbytes1} *= $scale; + push @args, 'HRULE:' . $target->{maxbytes1} . '#cc0000'; + } + + if (defined $target->{maxbytes2}) { + $target->{maxbytes2} *= $scale; + push @args, 'HRULE:' . $target->{maxbytes2} . '#cccc00' + if $target->{maxbytes2} != $target->{maxbytes1}; + } + + @{$target->{args}} = @args; + + @args; +} + +sub try_read_config() +{ + my $read_cfg; + if (!defined $config_time) { + $read_cfg = 1; + } else { + for my $file (@all_config_files) { + my @stat = stat $file; + if ($config_time < $stat[9]) { + $read_cfg = 1; + last; + } + } + } + + return unless $read_cfg; + + my %defaults = ( + xsize => 400, + ysize => 100, + kmg => ',k,M,G,T,P', + kilo => 1000, + bodytag => "\n", + colours => 'GREEN#00cc00,BLUE#0000ff,DARK GREEN#006600,MAGENTA#ff00ff,AMBER#ef9f4f', + legendi => ' In:', + legendo => ' Out:', + ); + + %config = ( + refresh => 300, + interval => 300, + icondir => '.', + ); + + %targets = (); + + %{$targets{_}} = %defaults; + %{$targets{'^'}} = (); + %{$targets{'$'}} = (); + + @all_config_files = @config_files; + + for my $cfgfile (@config_files) { + read_mrtg_config($cfgfile, \%defaults); + } + + if (defined $config{pathadd}) { + $ENV{PATH} .= ':'.$config{pathadd}; + } + +# if (defined $config{libadd}) { +# use lib $config{libadd} +# } + + $config_time = time; +} + +sub read_mrtg_config($$); + +sub read_mrtg_config($$) +{ + my ($file, $def) = @_; + + my %defaults = %$def; + + my @lines; + + open(CFG, "<$file") || print_error("Cannot open config file: $!"); + while () { + chomp; # remove newline + s/\s+$//; # remove trailing space + s/\s+/ /g; # collapse white spaces to ' ' + next if /^ *\#/; # skip comment lines + next if /^\s*$/; # skip empty lines + if (/^ \S/) { # multiline options + $lines[$#lines] .= $_; + } else { + push @lines, $_; + } + } + close CFG; + + foreach (@lines) { + if (/^([\w\d]+)\[(\S+)\] *: *(.*)$/) { + my ($tgt, $opt, $val) = (lc($2), lc($1), $3); + unless (exists $targets{$tgt}) { + %{$targets{$tgt}} = %{$targets{_}}; + } + if ($tgt eq '_' && $val eq '') { + if ($defaults{$opt}) { + $targets{_}{$opt} = $defaults{$opt}; + } else { + delete $targets{_}{$opt}; + } + } elsif (($tgt eq '^' || $tgt eq '$') && $val eq '') { + delete $targets{$tgt}{$opt}; + } elsif ($opt eq 'options') { + $val = lc($val); + map { $targets{$tgt}{options}{$_} = 1 } ($val =~ m/([a-z]+)/g); + } else { + my $pre = $targets{'^'}{$opt} + if defined $targets{'^'}{$opt}; + $pre ||= ''; + $targets{$tgt}{$opt} = $pre.$val; + $targets{$tgt}{$opt} .= $targets{'$'}{$opt} + if defined $targets{'$'}{$opt}; + } + next; + } elsif (/^Include *: *(\S*)$/) { + push @all_config_files, $1; + read_mrtg_config($1, $def); + next; + } elsif (/^([\w\d]+) *: *(\S*)$/) { + my ($opt, $val) = (lc($1), lc($2)); + $config{$opt} = $val; + next; + } + print_error("Parse error in $file near $_"); + } +} + +sub dump_targets() { + + for my $tgt (keys %targets) { + print "Target $tgt:\n"; + for my $opt (keys %{$targets{$tgt}}) { + if ($opt eq 'options') { + print "\toptions: "; + for my $o1 (keys %{$targets{$tgt}{options}}) { + print $o1, ","; + } + print "\n"; + next; + } + print "\t$opt: ", $targets{$tgt}{$opt}, "\n"; + } + } +} + +sub dump_config() { + + print "Config:\n"; + for my $opt (keys %config) { + print $opt, ": ", $config{$opt}, "\n"; + } +} + +sub print_error(@) +{ + print "Content-Type: text/plain\n\nError: ", join(' ', @_), "\n"; + exit 0; +} + +#--BEGIN CGI-- +#For CGI, use this: + +use CGI; +my $q = new CGI; + +handler($q); + +#--END CGI-- +#--BEGIN FCGI-- +# For FastCGI, uncomment this and comment out the above: +#-# use FCGI; +#-# use CGI; +#-# +#-# my $req = FCGI::Request(); +#-# +#-# while ($req->Accept >= 0) { +#-# my $q = new CGI; +#-# handler($q); +#-# } +#--END FCGI-- + +1; +