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* Security fix:Ingo Schwarze2014-07-191-4/+33
| | | | | | | | | | | Validate the manpath up front and report a Bad Request if it is not listed in manpath.conf, such that clients can't probe which directories exist on the server. In case of configuration errors, consistently report Internal Server Error without disclosing any further information. Partially based on a patch from Sebastien Marie <semarie-openbsd at latrappe dot fr>, but avoiding a couple of issues with that patch and approaching the issue in a somewhat more rigorous way.
* Security fix:Ingo Schwarze2014-07-191-1/+28
| | | | | | | | | | | | Validate the name of the file to show before opening it. Only allow relative filenames starting with "man" or "cat" and containing neither "/.." nor "../". While here, correct the condition discarding an initial "./". Vulnerability found by Sebastien Marie <semarie-openbsd at latrappe dot fr>. Many thanks for sending a patch; however, i did not use it but made the checks even stricter.
* Do not use the HTTP_HOST CGI variable,Ingo Schwarze2014-07-182-11/+2
| | | | | | | | just make the HTTP redirect Location: relative. Less user input is good, it reduces the attack surface. Besides, this removes one global variable and 4 lines of code. Patch from Sebastien Marie <semarie-openbsd at latrappe dot fr>.
* When the MAN_DIR/manpath.conf configuration file does not exist or is empty,Ingo Schwarze2014-07-181-2/+12
| | | | | | | | | log the problem, hand the pg_error_internal() error page to the client, and exit(3) in a controlled way instead of stumbling on and segfaulting later. Patch from Sebastien Marie <semarie-openbsd at latrappe dot fr>, messages tweaked by me.
* Compatibility hack for the old "manpath=OpenBSD<blank>" query parameter format;Ingo Schwarze2014-07-133-25/+72
| | | | | unfortunate, more than 400 links needing this are scattered all around the www.openbsd.org website, and CVSweb needs this as well.
* Make the calltree a bit easier to understand by giving theIngo Schwarze2014-07-131-22/+21
| | | | | | functions that call resp_begin_html() names starting with "pg_" and those called after resp_begin_html() names with "resp_". No functional change, purely renaming functions.
* make source vs. formatted guessing a bit more robustIngo Schwarze2014-07-131-0/+2
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* By popular demand, bring man.cgi default mode closer to what man(1) does:Ingo Schwarze2014-07-131-20/+46
| | | | | | Even when there are multiple pages with the same name in different sections, show one of them, using the same priorities as in the default man.conf(5) file.
* Unconfuse .Fa documentation:Ingo Schwarze2014-07-131-7/+19
| | | | | | | You can use .Fa with just a type, without a name, but when you give both, which is the usual case, they need to go into one single .Fa argument. Observed by bentley@; ok jmc@ bentley@.
* Install the manuals of the web interface below the same directoryIngo Schwarze2014-07-133-4/+12
| | | | | | | | as manpath.conf, such that we do not need to mix our own documentation into the documentation we are serving, which may not even be possible if the latter is updated automatically. Based on an idea by beck@.
* update after recent code changesIngo Schwarze2014-07-131-56/+56
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* Polish the search form using feedback from beck@ and others,Ingo Schwarze2014-07-121-27/+96
| | | | in particular introduce a section dropdown and an architecture dropdown.
* Polish the search form using feedback from beck@ and others,Ingo Schwarze2014-07-121-1/+1
| | | | in particular introduce a section dropdown and an architecture dropdown.
* No need for run-time configuration, add minimal compile-timeIngo Schwarze2014-07-123-18/+19
| | | | | configuration facilities, just two paths and two HTML strings. Show the title on all pages, not just the index page.
* Simplify: Delete 74 lines of code including one enum type, oneIngo Schwarze2014-07-121-98/+25
| | | | | | global lookup table, two functions, two function arguments, one struct member, one local variable, and the "search/" and "show/" part of the URIs, all without losing functionality.
* Start fixing issues that beck@ helped find:Ingo Schwarze2014-07-121-37/+34
| | | | | | | | | | | | Distinguish between man(1) and apropos(1) mode by adding back the classical QUERY_STRING variable "apropos=". Change the default back to "apropos=0". Control it by adding a HTML <SELECT> element for it. Rename the "expr=" QUERY_STRING variable back to its classical name "query=", i don't see how the new name is better than the classical one. While here, drop the concept of a "legacy mode". Simply continue to support the features, and use what we consider best.
* Fix whatis(1) to correctly match words instead of any substrings.Ingo Schwarze2014-07-122-23/+52
| | | | | While here, also provide an internal mode (MANSEARCH_MAN) to match complete names, to be used by man.cgi(8).
* fix the two manual links on the index pageIngo Schwarze2014-07-121-7/+8
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* merge OpenBSD rev. 1.3 by tedu@:Ingo Schwarze2014-07-111-6/+8
| | | | | make http decode linear time. also remove a redundant null check.
* merge OpenBSD rev. 1.2 by tedu@:Ingo Schwarze2014-07-111-8/+9
| | | | http headers must end lines with CRLF.
* add HISTORY sectionIngo Schwarze2014-07-111-0/+8
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* Link to the new man.cgi(8) manual, now that we have it! :-)Ingo Schwarze2014-07-101-2/+5
| | | | While here, s/satisfy/match/ when talking about queries.
* Full rewrite of the man.cgi(8) manual.Ingo Schwarze2014-07-103-124/+326
| | | | | | | | | | | | Almost everything in the old man.cgi(7) was outdated in one way or another - catman, catman.conf, CACHE_DIR, /cache, manroots, replacing '/' with spaces, /tmp... Instead, document the HTML and URI interfaces, the output and the setup, and complete the listings of ENVIRONMENT variables and FILES. Using section 8 instead of section 7 because that's the usual place for CGI programs, see for example bgplg(8) and slowcgi(8).
* some sugar for the index pageIngo Schwarze2014-07-091-2/+10
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* Clean up error reporting:Ingo Schwarze2014-07-091-49/+50
| | | | | | | * Consistent naming and use of resp_* functions. * Split resp_noresult() out of resp_search() and reuse it. * Log information about internal errors. * And some minor fixes.
* namespace cleanups:Ingo Schwarze2014-07-091-44/+47
| | | | | | | | | | CGI variable: s/CACHE_DIR/MAN_DIR/ because it's static, not a cache default MAN_DIR: /cache/man.cgi/ -> /man/ see above global variable: s/cache/mandir/ see above global variable: s/css/cssdir/ for consistency with mandir global variable: s/host/httphost/ for consistency with HTTP_HOST global variable: s/progname/scriptname/ for consistency with SCRIPT_NAME struct query: member s/manroot/manpath/ for consistency with QUERY_STRING
* remove obsolete __sun includesIngo Schwarze2014-07-091-9/+2
| | | | and improve some whitespace and comments
* set a reasonable default for .OsIngo Schwarze2014-07-091-1/+2
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* mark defos as const; nobody needs to change it,Ingo Schwarze2014-07-095-6/+8
| | | | and it is occasionally useful to be able to pass literal strings
* delete forgotten, obsolete rew_warn() prototypeIngo Schwarze2014-07-091-2/+0
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* oops, forgot to trim the newline characterIngo Schwarze2014-07-091-0/+2
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* Simplify pathgen() even more.Ingo Schwarze2014-07-091-27/+13
| | | | | | Let manpath.conf be a plain text list of the directories to use. As a bonus, this makes the order configurable. Get rid of <dirent.h>, opendir(3), readdir(3), stat(2).
* include manpath= when printing queries, and omit empty parametersIngo Schwarze2014-07-091-12/+32
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* This one needs "config.h", too.Ingo Schwarze2014-07-091-0/+4
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* Switch over man.cgi to SQLite. While here:Ingo Schwarze2014-07-092-377/+100
| | | | | | | * Simplify pathgen(), just use the subdirs of the cache dir. * Simplify URI paths, just use show/<manpath>/<filename>. * Drop struct paths, just use plain strings. * Garbage collect unused headers.
* Clean up ERROR messages related to document structure and macros:Ingo Schwarze2014-07-077-40/+59
| | | | Hierarchical naming and mention macro names in messages.
* Simplify man_unscope(), removing 18 lines of code, that is,Ingo Schwarze2014-07-073-50/+25
| | | | | | removing one function argument, one function definition, three function invocations and two pointless assert()s. No functional change.
* no need to delete any content from .Rs blocks,Ingo Schwarze2014-07-073-36/+13
| | | | and downgrade the related message from ERROR to WARNING
* no need to skip content before first section headerIngo Schwarze2014-07-074-24/+4
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* implement .dei and .amiIngo Schwarze2014-07-074-46/+67
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* Clean up messages related to plain text and to escape sequences.Ingo Schwarze2014-07-0610-40/+55
| | | | | * Mention invalid escape sequences and string names, and fallbacks. * Hierarchical naming.
* After skipping an escape sequence with incomplete arguments,Ingo Schwarze2014-07-061-2/+2
| | | | do not throw away the rest of the string to be rendered.
* Fix expansion of escape sequences with incomplete arguments.Ingo Schwarze2014-07-061-7/+14
| | | | | | * For \* and \n, discard the incomplete arg, expand to empty string. * For \B, discard the incomplete arg, expand to the digit 0. * For \w, use the incomplete arg (behaviour unchanged).
* Fix handling of escape sequences taking numeric arguments.Ingo Schwarze2014-07-061-1/+3
| | | | | | | * Repair detection of invalid delimiters. * Discard the invalid delimiter together with the invalid sequence. Note to self: In general, strchr("\0...", c) is a thoroughly bad idea.
* Cleanup with respect to bad macro arguments.Ingo Schwarze2014-07-054-73/+76
| | | | | | | | * Fix .Sm with invalid arg: move arg out and toggle mode. * Promote "unknown standard" from WARNING to ERROR, it loses information. * Delete MANDOCERR_BADWIDTH, it would only indicate a mandoc(1) bug. * Do not report MANDOCERR_BL_LATETYPE when there is no type at all. * Mention macro names, arguments and fallbacks.
* Cleanup regarding -offset and -width:Ingo Schwarze2014-07-053-56/+54
| | | | | | | * Bugfix: Last one wins, not first one. * Fix .Bl -width without argument: it means 0n, so do not ignore it. * Report macro names, argument names and fallbacks in related messages. * Simplify: Garbage collect auxiliary variables in pre_bd() and pre_bl().
* Clean up messages regarding excess arguments:Ingo Schwarze2014-07-048-42/+57
| | | | | | * Downgrade ".Bf -emphasis Em" from FATAL to WARNING. * Mention the macros, the arguments, and the fallbacks. * Hierarchical naming.
* Clean up messages related to missing arguments.Ingo Schwarze2014-07-043-31/+26
| | | | | | | | | * Do not warn about empty -column cells, they seem valid to me. * Downgrade empty item and missing -std from ERROR to WARNING. * Hierarchical naming. * Descriptive, not imperative style. * Mention macro names, argument names, and fallbacks. * Garbage collect some unreachable code in post_it().
* Fix formatting of empty .Bl -inset item heads.Ingo Schwarze2014-07-034-27/+25
| | | | | | Downgrade empty item heads from ERROR to WARNING. Show the list type in the error message. Choose better variable names for nodes in post_it().
* MANDOCERR_NOARGS reported three completely unrelated classes of problems.Ingo Schwarze2014-07-033-3/+9
| | | | Split the roff(7) parts out of it and report the request names for these cases.
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