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Revision 1.14 - (hide annotations)
Sun Sep 29 11:00:04 2002 UTC (19 years ago) by nmav
Branch: MAIN
Changes since 1.13: +5 -0 lines
Added support for If-Range, If-Match, If-None-Match HTTP/1.1 header
fields. The server also generates ETag headers for static content using
the last modified field of the file, and the file size.

Fixed the behaviour of the range parser, when a bogus range was received.
Now it does not send any message, it silently ignores the bogus range.

1 nmav 1.14 ** Changes from 0.0.3 to 0.0.4
2     * Added support for If-Range, If-Match, If-None-Match HTTP/1.1 header
3     fields. The server also generates ETag headers for static content using
4     the last modified field of the file, and the file size.
5    
6 nmav 1.13 ** Changes from 0.0.2 to 0.0.3 - 28/09/2002
7 nmav 1.11 * Added support for dynamic modules that handle CGIs
8     internally (HIC). That way Hydra can run PHP.
9     * Fixes in CGI execution. CGIs that are not passed from aliasing
10     functions now properly set PATH_INFO and PATH_TRANSLATED.
11     (Needs further cleanup).
12 nmav 1.12 * Cleaned up SSL support. Now hydra can be compiled even if gnutls
13     is not available.
14 nmav 1.11
15 nmav 1.9 ** Changes from Boa/0.94.13 to Hydra/0.0.2 - 26/09/2002
16 nmav 1.2 * Added support for SSL 3.0 and TLS 1.0 protocols.
17     * Added support for multiple CPU's by making the server
18     run over a pool of threads.
19     * Changed the file caching code. The mmap() calls are cached until
20     the mmap list table is full.
21     * Added support for HTTP/1.1 ranges.
22 nmav 1.4 * Added support for hostname based virtual hosting.
23 nmav 1.5 Also changed the semantics of Alias, ScriptAlias and Redirect, to
24     take advantage of the host based virtual hosting.
25 nmav 1.3 * Added support for the TCP_CORK tcp option in linux.
26     * Cleaned up the CGI handling (gunzip, indexer are treated as CGIs)
27 nmav 1.10 * Enhanced grammar to handle 3 and 4 argument options.
28 nmav 1.7 * Added support for multiple directory indexes.
29     * Dropped support for gunzip.
30 nmav 1.8 * Use automake to create the distribution.
31 nmav 1.2
32 nmav 1.1 ** Changes from 0.94.12 to 0.94.13
33     * Change many instances of log_error_mesg + exit to DIE macro
34     * Change all instance of log_error_mesg (without exit) to WARN macro
35     * do a much better job of checking return values from malloc and
36     especially strdup.
37     * check results of calling umask and getrlimit
38     * server_s is no longer a global int
39     * check results of fork via switch instead of if (fork())
40     * check for getopt.h and include it if found
41     * remove unused #defines, and add WARN macro, and replace
42     many calls to log_error_mesg(..) with WARN macro
43     * fix bug in get_commonlog_time where time_offset calculation was
44     the opposite of what it should be ('-' and '+' were swapped)
45     * fix compatability bug with old and newer versions of flex/yacc
46     * add check for AC_FUNC_MMAP to configure.in
47     * fix really lame thinko in normalize_path, which would prepend the
48     results of earlier calls to results from later calls
49     * Add MaxConnections, a configuration directive which allows the
50     user to specify the maximum number of connections that Boa will
51     accept concurrently.
52     * add SERVER_ADDR and REQUEST_URI to environment of CGI
53     * handle SIGBUS during writes of data that has been memory mapped
54     * minor optimization in select.c that prevents DEAD requests from
55     being added to the block set
56     * fix bug in CGI environment script_name - closes sf.net bug #576725
57     * make 'status' variable local to requests.c, not local to every file
58     by forgetting to declare 'extern' in globals.h :-|
59     * make getsockname non-fatal, and do it every time because we may
60     need it for the CGI
61     * some minor refactoring optimizations in hash.c
62    
63     ** Changes from 0.94.11 to 0.94.12
64     * Renamed Changelog ChangeLog, and moved up to top-level directory
65     * Next 3 items due in part or whole thanks to
66     Liam Widdowson
67     * when printf'ing a pid type, force to int, because it could be
68     something else on other platforms. Should probably change it to
69     a long, and use that.
70     * backported chroot commandline support from 0.95
71     * backported support for strdup, strstr, alphasort, and scandir
72     from 0.95
73     * Fixed src/Makefile.in -- it didn't remove index_dir.o
74     * backport create_temporary_file from 0.95
75     (instead of using tmpnam)
76     * Allow non-standard date format 31 September 2000 23:59:59 GMT
77     Patch by Landon Curt Noll
78     * Skip whitespace before HTTP/major.minor
79     Adapted patch from Landon Curt Noll
80     * open /dev/null first thing (affects chrooting)
81     * properly handle sigalrm -- use sigalrm_flag and sigalrm_run
82     instead of handling the signal in the signal handler
83     * update manpage slightly
84     * send 400 BAD Request when resource does not start with '/'
85     * add grp.h to boa.h's includes -- remove from boa.c and config.c
86     * removed duplicate header includes from boa.c, config.c, get.c,
87     ip.c, request.c, response.c
88     * factor out creating the server socket and dropping privs
89     into create_server_socket and drop_privs
90     * type all functions in boa.c (except main) as static
91     * set umask after opening /dev/null
92     * tie stdin/stdout to /dev/null before commandline parse
93     * removed old, unused chroot code
94     * move builds_needs_escape earlier in the startup
95     * move fork later in the startup
96     * type all c_set_* as static in config.c
97     * don't bother trying to change uid/gid (or error if the
98     requested uid/gid doesn't exist) if not UID 0
99     * return more appropriate error code when foo.html gives
100     access denied, but foo.html.gz gives some other error
101     (essentially report error associated with foo.html, not foo.html.gz)
102     * send NOT Implemented when an unknown method is attempted
103     * always attempt a 32k read right before close
104     (stopgap until blackhole can be merged)
105     * allow more than 1 space in logline between method, resource,
106     and http version
107     * don't use inline functions
108     * update configure.in so that autoconf 2.50 doesn't complain (as much)
109     * properly use VPATH and srcdir according to autoconf docs
110     * change curly-braces to parentheses in Makefilein
111     * use $^ instead of manually listing the dependencies in Makefile.in
112     * remove tests section in Makefile.in
113     * write tags not TAGS in Makefile.in
114     * Add gethostbyname and inet_aton to function checks
115     * Add code from 0.95 which checks for socket in -lsocket,
116     inet_aton in -lresolv, and gethost{by}name in -lnsl
117     * Also remove broken bc-based "how big is an unsigned int" checks:
118     assume minimum of 32 bits and check in escape.c at runtime.
119     * Added new file: README.chroot.solaris, based on a
120     modified version by Liam Widdowson
121     * Add check_struct_for.m4, which allows us to check a structure
122     for a member (found at http://www.gnu.org/software/ac-archive/
123     authored by Wes Hardaker
124     * Call "aclocal -I ." to rebuild aclocal.m4
125     * Using new check-struct-for-member autoconf macro, check
126     for tm_gmtoff and tm_zone in struct tm -- useful in
127     portability tests for localtime.
128     * Also check sockaddr_in for structure sin_len so we can set
129     it properly.
130     * index_dir.c (which ends up in boa_indexer) can now be compiled
131     with USE_LOCALTIME, and if so, it will report the local time
132     using the timezone name. Otherwise it uses UTC time and UTC
133     timezone designation.
134     * fix buglet in mmap_cache.c which shows up when under
135     heavy load by many different files.
136     Found and squashed by Michal Kara
137     * normalize paths on Aliases, log files, server root, dirmaker
138     This makes sure that paths are 'absolute'
139     * don't generate DOCUMENT_ROOT or SERVER_ROOT,
140     CGIs have no business knowing that information
141     * if CGI, chdir to the cgi's root path
142     Bug found by Matt Callaway
143     * remove ChrootPath and PidFile directives from the parser
144     (they aren't used anyway)
145     * keep track of maximum file descriptor in use to optimize call
146     to select()
147     * apply IPv6 patch from Jari Korva
148     * optimize keep-alive copy data routine
149     * try to use memcpy instead of strcpy/strcat in more places (alias.c)
150     * update .depend file
151     * use fcntl + GET_FL to get a file descriptor's flags, then
152     add or remove only the bits we want to set. This prevents
153     accidentally setting or unsettings bits we don't have anything
154     to do with inadvertantly. (removed, at least temporarily.
155     Show me a system where it is needed -- LRD)
156     * make sure to call FD_ZERO when we handle a restart
157     * in read.c, don't call boa_perror on read failure -- socket is
158     dead or messed up anyway, no reason to try to write to it.
159     * explicit .SUFFIXES in Makefile.in
160     * boa.objdump target added
161     * use @MAKE_SET@ (for when $(MAKE) != "make")
162     * add -Wundef -Wwrite-strings -Wredundant-decls -Winline to GCC_FLAGS
163     * change Paul Phillips' and Larry Doolittle's emails in source
164     * add --disable-debug, --enable-profile, --with-dmalloc, and --with-efence
165     * test for failed-but-return-was-successful setuid:
166     http://www.securityfocus.com/bid/1322
167     * use _exit not exit in CGI child
168     * always place new keepalive request on blocked list, we can't be
169     sure of the state of the active list, and since enqueue places
170     things at the *front* of the list, it doesn't do us much good
171     to place the new request on the active list anyway.
172     * update some Copyright statements for 2002
173     * When comparing the uri to an alias, only compare if
174     the uri length is greater than or equal to the length of the alias
175     * in init_script_alias, make sure to check for document_root before
176     trying to use it
177     * script_name is now just a copy of the request, rather
178     than some complicated variation on the pathname
179     * change the way the CGI environment is handled.
180     Now, it is allocated at request allocation time, and exists
181     throughout the life of the structure.
182     * check memory allocations, etc.. when creating the static
183     CGI environment and when making new CGI environment variables
184     * wait until process_option_end to call unescape_uri, clean_pathname,
185     and translate_uri
186     * remove debian package information
187     * move RedHat packaging information to contrib
188     * remove tests -- they weren't usable anyway
189     * add some new hash routines, and use djb2 (a variant on a
190     hash algorithm popularized by Dan J. Bernstein)
191     * a side-effect of the new hash routines is a bugfix,
192     involving negative return values from hash routines.
193     This has been fixed.
194     * add a routine, show_hash_stats, which is called with other
195     statistical output via sigalarm
196     * remove some duplicate prototypes from config.c
197     * make simple_itoa take an unsigned int
198     * try to make NOBLOCK handling in compat.h compatible with Solaris
199     * make sure to update current_time before calling signal handlers
200     * alter primary loop to make sure that select gets called even
201     when there are requests that are not blocking, and call fdset_update
202     and process_requests (when appropriate) after signal handlers but
203     before select to make sure that blocked requests are still handled
204     by select after a sighup. (Thanks to Karl Olsen)
205     * pull select loop into select.c
206     * poll server socket once per active connection
207     * add send_r_service_unavailable and use it when appropriate
208     * state uptime in seconds at normal program termination
209     * include sys/fcntl.h if it is found by configure
210     * fix POST bug where a content-length < 0 would cause Boa to
211     consume its full share of CPU until killed
212     Bug report by Landon Curt Noll
213     * add CGIPath configuration variable
214     based upon a patch by Landon Curt Noll
215     * add function boa_atoi, which wraps atoi, but does not
216     accept negative values. Additionally, it checks to make sure
217     the converted value and the original value are the same, avoiding
218     issues like "124.3" -> "123" and "123abc" -=> "123".
219     Either a value is an int or it isn't - no middle ground.
220     * use boa_atoi to convert content-length from client.
221     * add new #define - SINGLE_POST_LIMIT_DEFAULT, which defines
222     (in bytes) the *default* single_post_limit.
223     * single_post_limit is now in bytes.
224     * when adding aliases, only "normalize" paths that start
225     with "./" - this is a departure from previous behavior
226     * add "?" to the list of characters that it is safe to leave unescaped
227     * clean up Makefile.in of no-longer-pertinent comments
228     * add send_r_bad_gateway and use it
229     * tie stderr to either cgi_log_fd or devnullfd - either way
230     make sure stderr is a valid filehandle before cgi execution
231     * cgi_env is no longer allocated, it's part of the struct now
232     * fix bug in CgiPath logic
233     * when unable to allocate memory for an environment variable, log it
234     * add clear_common_env, which de-allocates the cgi_common_env stuff
235     [NEVER USE THIS outside of a terminal signal handler!]
236     * don't be so wasteful of memory in normalize_path
237     * adapted fix for alias expansion from Brieuc Jeunhomme
238    
239     ** Changes from 0.94.10.1 to 0.94.11
240     * use LIBS in Makefile.in (which propagates from autoconf)
241     * properly free memory allocated by scandir in index_dir.c
242     * rearrange some header files and includes
243     * on reads and writes, don't check for -1, check for < 0
244     * include fix by William Meadows
245     for escape.c which fixes segfaults due to improper allocation
246     * above fix by William Meadows no longer needed;
247     escape.c and escape.h rewritten by Larry Doolittle -- requires
248     at least 32 bit words, but is correct (jdn's 1st attempt was faulty)
249    
250     ** Changes from 0.94.10 to 0.94.10.1
251     * Actually update the SERVER_VERSION in src/defines.h
252    
253     ** Changes from 0.94.9 to 0.94.10
254     * Fixes escaping rules
255     * Fixes segfault when directory_index is undefined and
256     directory needs to be generated
257     * adds dummy signal handlers for SIGUSR1 and SIGUSR2 (Closes SF #425921)
258     * Update documentation regarding mime.types (Closes Debian #69991)
259     * Make sure documentation builds (Closes Debian #110818)
260    
261     ** Changes from 0.94.8.3 to 0.94.9
262     * src/Makefile.in updated to take CFLAGS, LIBS, and LDFLAGS
263     from autoconf
264     * Update escaping rules with latest RFC
265     * unescape_uri skips fragments and also stop parsing at '?'
266     * Don't accept fd over FD_SETSIZE in request.c:get_request
267     * use backported documentation from 0.95
268     * make sure POST fd gets closed even on client cancel
269     * use backported index_dir.c from 0.95
270     * support subdirectories in ScriptAlias directories
271     * add SinglePostLimit (int, in Kilobytes) to config system
272     * check for ENOSPC on body write
273     * use environment variable TMP (or "/tmp" if not available),
274     and chdir there when boa exits.
275     * add 1-time-only hack to make a 32kB read at the end of a request
276     on POST or PUT
277     * close unused file descriptors (/dev/null in boa.c, and the
278     unused part of the pipes call in cgi.c)
279     * made Makefile.in VPATH happy
280    
281     ** Changes from 0.94.8.2 to 0.94.8.3
282     * Move unescape_uri *before* clean_pathname to prevent
283     encoding of / and .. in pathname
284     * wrap execution of GUNZIP in cgi.c with #ifdef GUNZIP
285     * stop parsing when fragment found in URL ('#')
286    
287     ** Changes from 0.94.8.1 to 0.94.8.2
288     * close pipes[1] in child and generate HTTP_REFERER environment
289     variable in cgi.c
290     * Minor changes to the Debian package
291    
292     ** Changes from 0.94.8 to 0.94.8.1
293     * Change umask call from (umask(0600)) to (umask(~0600))
294    
295     ** Changes from 0.94.7 to 0.94.8
296     * Fix major thinko in temp file permissions
297     * unlink temporary file immediately following creation
298     * implement maximum # of active connections at 10 less than RLIMIT_NOFILE
299     to avoid or eliminate crashes resulting from running out of
300     file descriptors
301     * Fix thinko in POST
302    
303     ** Changes from 0.94.6 to 0.94.7
304     * STDIN and STDOUT are now tied to /dev/null
305     * sets PATH_MAX to 2048 if not defined (for Hurd)
306     * core dumps (should never happen) would be located in /tmp
307     * alter behavior when select gets a EBADF
308     * add translation for the \" char -> &quot;
309     * remove use of sys_errlist. Use perror.
310     * better makedist.sh (still a stupid program though)
311    
312     ** Changes from 0.94.5 to 0.94.6
313     * Removed doc++ commenting
314     * Removed erroneous debugging statments
315     * Move some stuff out of config.c (read_config_file) to boa.c
316     * Altered some of fixup_server_root()
317     * Bug fix in get.c re: automatic gunzip
318     * Added some stubs for chroot code (*not* ready yet)
319    
320     ** Changes from 0.94.4 to 0.94.5
321     * Alteration of most of the comments and such for doc++ use
322     * Fixed buffer overflow in alias.c
323     * Fixed buffer underflow in util.c
324    
325     ** Changes from 0.94.3 to 0.94.4
326     * Better escaping of data to user, both for HTTP headers and HTML body
327     * Proper escaping of output in CGI example perl scripts
328    
329     ** Changes from 0.94.0 to 0.94.2
330     * Fixed obnoxious pipeline bug
331     * Fixed (sorta) a compilation/core bug for *BSD systems
332     Original code by Thomas Neumann
333     * Moved to GPLv2
334     * Changed manpage to section 8
335     * boa.sgml now references a .png file instead of evil .gif
336    
337     ** Changes from 0.93.19.2 to 0.94.0
338     * Added UseGMT to the configuration parser
339     * util.c commonlog now logs in Apache-style commonlog time format
340     * Remove SO_SNDBUF on-start message
341    
342     ** Changes from 0.93.19 to 0.93.19.2
343     * Changed to combined log (from NCSA access_log format) ala Drew Streib
344     * Altered POST cgi code to handle bug in Netscape
345     * SO_SNDBUF changes by Larry
346    
347     ** Changes from 0.93.17.2 to 0.93.19 (all 0.93.18.x changes inclusive)
348     * Update of some copyright statements for 99
349     * Replacement of sprintf with strlen/memcpy or strcpy/strcat
350     wherever possible
351     * Significant rearrangement in alias.c, minor functional differences
352     (some CGI environment variables handled differently)
353     * Removal of die function. Replace with log_err_mesg and exit.
354     * initial IPv6 stubs and support
355     * Move #include "config.h" to top of boa.h where it will do some good
356     * Stubs and functions for strstr and strdup
357     * Seperation of buffer code into it's own file
358     * Significant changes to cgi.c et al (cgi_header.c, etc...)
359     * Speed patches by removal of "extra" calls to time(): Use global variable!
360     * pipelining changes... it works now.
361     * require content-length from clients (ala rfc1945)
362     * alter body_read and body_write to work more efficiently with known content-length
363     * move read(2) part to *after* parsing...
364     * added support for additional header message in send_redirect_temp
365     * change use of NO_ZERO_FILL_LENGTH to offsetof() use
366     * Remove SO_REUSEADDR setting on each client socket, Paul Saab
367     * Avoid SO_SNDBUF setting if possible
368     * Large quantities of otherwise not-insignificant changes
369    
370     ** Changes from 0.93.17.2 to 0.93.17.3
371     * Put on-the-fly directories back in, stripped down from the 0.92 version
372     * Fixed DocumentRoot, ServerAdmin and ServerName null-value handling in
373     CGI environment generation
374     * Fixed argument order in Script* directives (bug introduced in 0.93.17.2)
375     * Got rid of MAX_CGI_VARS because it was not being used consistently, or
376     for that matter, at all, really.
377     * Added some more FASCIST_LOGGING to cgi.c
378     * Minor mmap patch by LRD for request.c
379    
380     ** Changes from 0.93.17.1 to 0.93.17.2
381     * Added "Listen" directive for server bind address, as most recently
382     suggested by David N. Welton
383     * Put virtualhost feature in, was experimental in 0.92q
384    
385     ** Changes from 0.93.16.2 to 0.93.17.1
386     * New config file parser (supposed to be more maintainable) (LRD)
387     * Support for "|command" and ":host:port" syntax for logfiles (untested) (LRD)
388    
389     ** Changes for the 0.93 version **
390     * Huge quantities of changes
391     * keepalive Bugfix in 0.93.16.2 by Jon Nelson
392     report by Craig Silverstein of Google fame.
393     * patch for config.h by Craig Silverstein
394     * fixed "Parent Directory" problem in boa_indexer for title "/"
395     (Debian bug #36165)
396     * More Craig Silverstein
397     modifications, namely:
398     ErrorLog (if omitted, print to stderr)
399     DocumentRoot (if omitted, can only server user-dir files)
400     DirectoryIndex (if omitted, always use DirectoryMaker)
401     MimeTypes (if omitted, don't load -- users can use AddType instead)
402    
403    
404     ** Changes from v0.92o to v0.92p **
405    
406     * Documented misbehavior of CGI, SIGHUP, short aliases, stale dircache.
407     * Documented how to patch signals.c for use on SunOS.
408     * Closed file descriptor leak when redirecting a bare directory URL to
409     one with an appended "/".
410     * Closed potential file descriptor leak if errors encountered generating
411     on-the-fly index.
412     * Cleaned up include file handling to be simultaneously compatible with
413     Linux, SunOS, HP-UX, and AIX.
414     * Supress message body for codes 302, 400, 403, 404, 500, and 501 if
415     incoming request is "HEAD".
416    
417     ** Changes from v0.91 to v0.92o **
418     (0.92o released 27 December, 1996)
419    
420     * Maintenance handover from Paul Phillips to Larry Doolittle
421     * Changed (char)NULL to '\0'
422     * Cleaned up signal handler prototypes in signals.c
423     * Modified handling of CGI environment variable PATH_TRANSLATED,
424     should now work the same as NCSA.
425     * More conservative buffer size in add_cgi_env()
426     * Build argv list for a CGI script according to spec
427     * Speedup process_header_line, eliminate potential memory leak
428     * Occasional spelling fixes and lint removal
429     * Added REMOTE_PORT env var for CGI scripts, to allow easy ident lookups
430     * Changed rfc822 time format
431     * Log timeouts and broken connections
432     * Fix mime suffix handling for filenames with multiple "."s
433     * Initialize conn->time_last, fixes bug with rapid-fire connections
434     * Performance tweak to req_write()
435     * Changed http_version from float to char[8]
436     * Rewrote on-the-fly directory generation; it works now
437     * Added user configurable dircache directory in boa.conf
438     * Fixed "simple" response bugs, including incorrect CGI handling
439     * Keepalive (HTTP/1.1 draft) support, mostly by Jon Nelson
440     * Close data_fd in 304 Not Modified flow of control
441     * Switch socket flags to non-blocking before cgi handoff
442     * Try to handle errno properly in the face of multiple errors
443     * Close fd's of all other transactions before cgi handoff
444     * Move real work for sighup and sigchld out of signal handler
445     * Fix free(req->cgi_env) in request.c
446     * Response message cleanup - better match to HTML-2.0 DTD
447     * Experimental Virtual Host code from Russ Nelson
448     * Expand buffer for escaped URI in init_get()
449     * SIGTERM triggers lame duck mode until all pending transactions complete
450     * Close and unlink temp file for POST in parent process
451    
452     ** Changes from v0.90 to v0.91 **
453    
454     * Cleaned up main while loop
455     * Optimized request line parsing
456     * Added state machine for header reads -- necessary to deal wtih
457     possibility of obtaining header data in multiple reads. This
458     also allows interactive use of server.
459     * Added 500/501 return codes for various conditions
460    
461     ** v0.90 **
462    
463     * Initial release
464    

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