From b0c2270f1559a0a3fb40c79f4831974ed6e1e990 Mon Sep 17 00:00:00 2001 From: belliash Date: Fri, 28 Jun 2013 18:48:22 +0200 Subject: [PATCH] Initial import --- COPYING | 339 ++++++++ Makefile | 45 + README | 21 + README.md | 4 - dateparse.c | 187 +++++ dateparse.h | 27 + kuhttpd.c | 2279 +++++++++++++++++++++++++++++++++++++++++++++++++++ kuhttpd.cnf | 23 + kuhttpd.h | 198 +++++ match.c | 60 ++ match.h | 16 + mime_enc.h | 20 + mime_typ.h | 207 +++++ 13 files changed, 3422 insertions(+), 4 deletions(-) create mode 100644 COPYING create mode 100644 Makefile create mode 100644 README delete mode 100644 README.md create mode 100644 dateparse.c create mode 100644 dateparse.h create mode 100644 kuhttpd.c create mode 100644 kuhttpd.cnf create mode 100644 kuhttpd.h create mode 100644 match.c create mode 100644 match.h create mode 100644 mime_enc.h create mode 100644 mime_typ.h diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..d159169 --- /dev/null +++ b/COPYING @@ -0,0 +1,339 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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. 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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., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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) year 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 Lesser General +Public License instead of this License. diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..d02fd48 --- /dev/null +++ b/Makefile @@ -0,0 +1,45 @@ +CC = gcc +CFLAGS = -O2 -s -D_GNU_SOURCE +LDLIBS = -lcrypt -lcyassl -lm +PREFIX = +BINDIR = $(PREFIX)/usr/sbin + +ifeq ($(CROSS_BUILD), 1) + DEFS:=-DCROSS_BUILD +else + DEFS:= +endif + +all: kuhttpd cert + @echo "All done!" + +kuhttpd: kuhttpd.o match.o dateparse.o + $(CC) $(CFLAGS) $(LDLIBS) kuhttpd.o match.o dateparse.o -o kuhttpd + +kuhttpd.o: kuhttpd.c + $(CC) $(CFLAGS) $(DEFS) -c kuhttpd.c + +match.o: match.c + $(CC) $(CFLAGS) $(DEFS) -c match.c + +dateparse.o: dateparse.c + $(CC) $(CFLAGS) $(DEFS) -c dateparse.c + +cert: kuhttpd.pem +kuhttpd.pem: kuhttpd.cnf + openssl req -batch -new -x509 -days 7500 -nodes -config kuhttpd.cnf -out kuhttpd.pem -keyout kuhttpd.pem + openssl x509 -subject -dates -fingerprint -noout -in kuhttpd.pem + chmod 600 kuhttpd.pem + +install: + mkdir -p $(BINDIR) + cp kuhttpd $(BINDIR) + @echo "All done!" + +uninstall: + @rm -f $(BINDIR)/kuhttpd + @echo "All done!" + +clean: + rm -f kuhttpd kuhttpd.pem kuhttpd.rnd *.o + @echo "All done!" diff --git a/README b/README new file mode 100644 index 0000000..9fa8f4a --- /dev/null +++ b/README @@ -0,0 +1,21 @@ +Kagera Micro HTTP Daemon +======================== + +KUHTTP Daemon is a micro HTTP server optimised for size and low and medium +traffic sites. It is dedicated to serve configuration sites on Linux-based +routers as well as some additional pages like Captive Portals. It implements +all the basic features of an HTTP server, including: + + * GET, HEAD, and POST methods + * CGI process communication + * Multilanguage CGI + * Basic authentication + * IPv6 and SSL/HTTPS communication + * Directory listings + * The common MIME types + * Trailing-slash redirection + * Security against ".." filename snooping + * Standard logging + + +KUHTTP Daemon is based on mini_httpd: . diff --git a/README.md b/README.md deleted file mode 100644 index 44bcfaf..0000000 --- a/README.md +++ /dev/null @@ -1,4 +0,0 @@ -kuhttpd -======= - -Kagera uHTTP Daemon diff --git a/dateparse.c b/dateparse.c new file mode 100644 index 0000000..0549c6d --- /dev/null +++ b/dateparse.c @@ -0,0 +1,187 @@ +/** + * @PROJECT Kagera uHTTP Daemon + * @COPYRIGHT See COPYING in the top level directory + * @FILE dateparse.c + * @PURPOSE Parses string dates into internal form + * @DEVELOPERS Rafal Kupiec + * Jef Poskanzer + */ + +#include +#include +#include +#include +#include +#include + +#include "dateparse.h" + +time_t dateparse(char* str) { + struct tm tm; + char* cp; + char str_mon[500], str_wday[500]; + int tm_sec, tm_min, tm_hour, tm_mday, tm_year; + long tm_mon, tm_wday; + + (void) memset((char*) &tm, 0, sizeof(struct tm)); + for(cp = str; *cp == ' ' || *cp == '\t'; ++cp) { + continue; + } + if(sscanf(cp, "%d-%400[a-zA-Z]-%d %d:%d:%d GMT", &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min, &tm_sec) == 6 && scan_mon(str_mon, &tm_mon)) { + tm.tm_mday = tm_mday; + tm.tm_mon = tm_mon; + tm.tm_year = tm_year; + tm.tm_hour = tm_hour; + tm.tm_min = tm_min; + tm.tm_sec = tm_sec; + } else if(sscanf(cp, "%d %400[a-zA-Z] %d %d:%d:%d GMT", &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min, &tm_sec) == 6 && scan_mon(str_mon, &tm_mon)) { + tm.tm_mday = tm_mday; + tm.tm_mon = tm_mon; + tm.tm_year = tm_year; + tm.tm_hour = tm_hour; + tm.tm_min = tm_min; + tm.tm_sec = tm_sec; + } else if(sscanf(cp, "%d:%d:%d GMT %d-%400[a-zA-Z]-%d", &tm_hour, &tm_min, &tm_sec, &tm_mday, str_mon, &tm_year) == 6 && scan_mon(str_mon, &tm_mon)) { + tm.tm_hour = tm_hour; + tm.tm_min = tm_min; + tm.tm_sec = tm_sec; + tm.tm_mday = tm_mday; + tm.tm_mon = tm_mon; + tm.tm_year = tm_year; + } else if(sscanf(cp, "%d:%d:%d GMT %d %400[a-zA-Z] %d", &tm_hour, &tm_min, &tm_sec, &tm_mday, str_mon, &tm_year) == 6 && scan_mon(str_mon, &tm_mon)) { + tm.tm_hour = tm_hour; + tm.tm_min = tm_min; + tm.tm_sec = tm_sec; + tm.tm_mday = tm_mday; + tm.tm_mon = tm_mon; + tm.tm_year = tm_year; + } else if(sscanf(cp, "%400[a-zA-Z], %d-%400[a-zA-Z]-%d %d:%d:%d GMT", str_wday, &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min, &tm_sec) == 7 && scan_wday(str_wday, &tm_wday) && scan_mon(str_mon, &tm_mon)) { + tm.tm_wday = tm_wday; + tm.tm_mday = tm_mday; + tm.tm_mon = tm_mon; + tm.tm_year = tm_year; + tm.tm_hour = tm_hour; + tm.tm_min = tm_min; + tm.tm_sec = tm_sec; + } else if(sscanf(cp, "%400[a-zA-Z], %d %400[a-zA-Z] %d %d:%d:%d GMT", str_wday, &tm_mday, str_mon, &tm_year, &tm_hour, &tm_min, &tm_sec) == 7 && scan_wday(str_wday, &tm_wday) && scan_mon(str_mon, &tm_mon)) { + tm.tm_wday = tm_wday; + tm.tm_mday = tm_mday; + tm.tm_mon = tm_mon; + tm.tm_year = tm_year; + tm.tm_hour = tm_hour; + tm.tm_min = tm_min; + tm.tm_sec = tm_sec; + } else if(sscanf(cp, "%400[a-zA-Z] %400[a-zA-Z] %d %d:%d:%d GMT %d", str_wday, str_mon, &tm_mday, &tm_hour, &tm_min, &tm_sec, &tm_year) == 7 && scan_wday(str_wday, &tm_wday) && scan_mon(str_mon, &tm_mon)) { + tm.tm_wday = tm_wday; + tm.tm_mon = tm_mon; + tm.tm_mday = tm_mday; + tm.tm_hour = tm_hour; + tm.tm_min = tm_min; + tm.tm_sec = tm_sec; + tm.tm_year = tm_year; + } else { + return (time_t) -1; + } + if(tm.tm_year > 1900) { + tm.tm_year -= 1900; + } else if(tm.tm_year < 70) { + tm.tm_year += 100; + } + return tm_to_time(&tm); +} + +static int is_leap(int year) { + return year % 400? (year % 100 ? (year % 4 ? 0 : 1) : 0) : 1; +} + +static void pound_case(char* str) { + for(; *str != '\0'; ++str) { + if(isupper((int) *str)) { + *str = tolower((int) *str); + } + } +} + +static int scan_mon(char* str_mon, long* tm_monP) { + static struct strlong mon_tab[] = { + { "jan", 0 }, { "january", 0 }, + { "feb", 1 }, { "february", 1 }, + { "mar", 2 }, { "march", 2 }, + { "apr", 3 }, { "april", 3 }, + { "may", 4 }, + { "jun", 5 }, { "june", 5 }, + { "jul", 6 }, { "july", 6 }, + { "aug", 7 }, { "august", 7 }, + { "sep", 8 }, { "september", 8 }, + { "oct", 9 }, { "october", 9 }, + { "nov", 10 }, { "november", 10 }, + { "dec", 11 }, { "december", 11 }, + }; + static int sorted = 0; + if(!sorted) { + (void) qsort(mon_tab, sizeof(mon_tab) / sizeof(struct strlong), sizeof(struct strlong), (int(*)(const void*, const void*)) strlong_compare); + sorted = 1; + } + pound_case(str_mon); + return strlong_search(str_mon, mon_tab, sizeof(mon_tab) / sizeof(struct strlong), tm_monP); +} + +static int scan_wday(char* str_wday, long* tm_wdayP) { + static struct strlong wday_tab[] = { + { "sun", 0 }, { "sunday", 0 }, + { "mon", 1 }, { "monday", 1 }, + { "tue", 2 }, { "tuesday", 2 }, + { "wed", 3 }, { "wednesday", 3 }, + { "thu", 4 }, { "thursday", 4 }, + { "fri", 5 }, { "friday", 5 }, + { "sat", 6 }, { "saturday", 6 }, + }; + static int sorted = 0; + if(!sorted) { + (void) qsort(wday_tab, sizeof(wday_tab) / sizeof(struct strlong), sizeof(struct strlong), (int(*)(const void*, const void*)) strlong_compare); + sorted = 1; + } + pound_case(str_wday); + return strlong_search(str_wday, wday_tab, sizeof(wday_tab) / sizeof(struct strlong), tm_wdayP); +} + +static int strlong_compare(char *v1, char *v2) { + return strcmp(((struct strlong*) v1)->s, ((struct strlong*) v2)->s); +} + +static int strlong_search(char* str, struct strlong* tab, int n, long* lP) { + int i, h, l, r; + l = 0; + h = n - 1; + for(;;) { + i = (h + l) / 2; + r = strcmp(str, tab[i].s); + if(r < 0) { + h = i - 1; + } else if(r > 0) { + l = i + 1; + } else { + *lP = tab[i].l; + return 1; + } + if(h < l) { + return 0; + } + } +} + +static time_t tm_to_time(struct tm* tmP) { + time_t t; + static int monthtab[12] = { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 }; + t = (tmP->tm_year - 70) * 365; + t += (tmP->tm_year - 69) / 4; + t += monthtab[tmP->tm_mon]; + if(tmP->tm_mon >= 2 && is_leap(tmP->tm_year + 1900)) { + ++t; + } + t += tmP->tm_mday - 1; + t = t * 24 + tmP->tm_hour; + t = t * 60 + tmP->tm_min; + t = t * 60 + tmP->tm_sec; + return t; +} diff --git a/dateparse.h b/dateparse.h new file mode 100644 index 0000000..61ebb5a --- /dev/null +++ b/dateparse.h @@ -0,0 +1,27 @@ +/** + * @PROJECT Kagera uHTTP Daemon + * @COPYRIGHT See COPYING in the top level directory + * @FILE dateparse.h + * @PURPOSE Parses string dates into internal form + * @DEVELOPERS Rafal Kupiec + * Jef Poskanzer + */ + +#ifndef __DATEPARSE_H +#define __DATEPARSE_H + +struct strlong { + char* s; + long l; +}; + +extern time_t dateparse(char* str); +static int is_leap(int year); +static void pound_case(char* str); +static int scan_mon(char* str_mon, long* tm_monP); +static int scan_wday(char* str_wday, long* tm_wdayP); +static int strlong_compare(char *v1, char *v2); +static int strlong_search(char* str, struct strlong* tab, int n, long* lP); +static time_t tm_to_time(struct tm* tmP); + +#endif diff --git a/kuhttpd.c b/kuhttpd.c new file mode 100644 index 0000000..e054806 --- /dev/null +++ b/kuhttpd.c @@ -0,0 +1,2279 @@ +/** + * @PROJECT Kagera uHTTP Daemon + * @COPYRIGHT See COPYING in the top level directory + * @FILE kuhttpd.c + * @PURPOSE HTTP Server + * @DEVELOPERS Eric Bishop + * Rafal Kupiec + * Jef Poskanzer + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#ifdef CROSS_BUILD + #include +#endif + +#include "kuhttpd.h" +#include "dateparse.h" +#include "match.h" +#include "mime_enc.h" +#include "mime_typ.h" + +static void add_headers(int s, char* title, char* extra_header, char* me, char* mt, off_t b, time_t mod) { + time_t now; + char timebuf[100]; + char buf[10000]; + int buflen; + const char* rfc1123_fmt = "%a, %d %b %Y %H:%M:%S GMT"; + + status = s; + bytes = b; + make_log_entry(); + start_response(); + buflen = snprintf(buf, sizeof(buf), "%s %d %s\015\012", protocol, status, title); + add_to_response(buf, buflen); + buflen = snprintf(buf, sizeof(buf), "Server: %s\015\012", SERVER_SOFTWARE); + add_to_response(buf, buflen); + now = time((time_t*) 0); + (void) strftime(timebuf, sizeof(timebuf), rfc1123_fmt, gmtime(&now)); + buflen = snprintf(buf, sizeof(buf), "Date: %s\015\012", timebuf); + add_to_response(buf, buflen); + buflen = snprintf(buf, sizeof(buf), "Expires: %s\015\012", timebuf); + add_to_response(buf, buflen); + if(mod != (time_t) -1) { + (void) strftime(timebuf, sizeof(timebuf), rfc1123_fmt, gmtime(&mod)); + buflen = snprintf(buf, sizeof(buf), "Last-Modified: %s\015\012", timebuf); + add_to_response(buf, buflen); + } + if(extra_header != (char*) 0 && extra_header[0] != '\0') { + buflen = snprintf(buf, sizeof(buf), "%s\015\012", extra_header); + add_to_response(buf, buflen); + } + if(me != (char*) 0 && me[0] != '\0') { + buflen = snprintf(buf, sizeof(buf), "Content-Encoding: %s\015\012", me); + add_to_response(buf, buflen); + } + if(mt != (char*) 0 && mt[0] != '\0') { + buflen = snprintf(buf, sizeof(buf), "Content-Type: %s\015\012", mt); + add_to_response(buf, buflen); + } + if(bytes >= 0) { + buflen = snprintf(buf, sizeof(buf), "Content-Length: %lld\015\012", (long long int) bytes); + add_to_response(buf, buflen); + } + if(p3p != (char*) 0 && p3p[0] != '\0') { + buflen = snprintf(buf, sizeof(buf), "P3P: %s\015\012", p3p); + add_to_response(buf, buflen); + } + buflen = snprintf(buf, sizeof(buf), "\015\012"); + add_to_response(buf, buflen); +} + +static void add_to_buf(char** bufP, size_t* bufsizeP, size_t* buflenP, char* str, size_t len) { + if(*bufsizeP == 0) { + *bufsizeP = len + 500; + *buflenP = 0; + *bufP = (char*) e_malloc(*bufsizeP); + } else if(*buflenP + len >= *bufsizeP) { + *bufsizeP = *buflenP + len + 500; + *bufP = (char*) e_realloc((void*) *bufP, *bufsizeP); + } + (void) memmove(&((*bufP)[*buflenP]), str, len); + *buflenP += len; + (*bufP)[*buflenP] = '\0'; +} + +static void add_to_request(char* str, size_t len) { + add_to_buf(&request, &request_size, &request_len, str, len); +} + +static void add_to_response(char* str, size_t len) { + add_to_buf(&response, &response_size, &response_len, str, len); +} + +static void auth_check(char* dirname, int is_ssl) { + char authpath[10000]; + char realmName[500]; + struct stat sb; + char authinfo[500]; + char* authpass; + char* colon; + static char line[10000]; + int l; + FILE* fp; + char* cryp; + + if(dirname[strlen(dirname) - 1] == '/') { + (void) snprintf(authpath, sizeof(authpath), "%s%s", dirname, AUTH_FILE); + } else { + (void) snprintf(authpath, sizeof(authpath), "%s/%s", dirname, AUTH_FILE); + } + if(stat(authpath, &sb) < 0) { + if(defaultRealmName == NULL || defaultRealmPasswordFile == NULL) { + return; + } else { + snprintf(authpath, sizeof(authpath), "%s", defaultRealmPasswordFile); + } + } + if(strcmp(authpath, defaultRealmPasswordFile) == 0) { + snprintf(realmName, sizeof(realmName), "%s", defaultRealmName); + } else { + snprintf(realmName, sizeof(realmName), "%s", dirname); + } + if(authorization == (char*) 0) { + send_authenticate(realmName, is_ssl); + } + if(strncmp(authorization, "Basic ", 6) != 0) { + send_authenticate(realmName, is_ssl); + } + l = b64_decode(&(authorization[6]), (unsigned char*) authinfo, sizeof(authinfo) - 1); + authinfo[l] = '\0'; + authpass = strchr(authinfo, ':'); + if(authpass == (char*) 0) { + send_authenticate(realmName, is_ssl); + } + *authpass++ = '\0'; + colon = strchr(authpass, ':'); + if(colon != (char*) 0) { + *colon = '\0'; + } + fp = fopen(authpath, "r"); + if(fp == (FILE*) 0) { + syslog(LOG_ERR, "%.80s auth file %.80s could not be opened - %m", ntoa(&client_addr), authpath); + send_error(403, "Forbidden", "", "File is protected.", is_ssl); + } + while(fgets(line, sizeof(line), fp) != (char*) 0) { + l = strlen(line); + if(line[l - 1] == '\n') { + line[l - 1] = '\0'; + } + cryp = strchr(line, ':'); + if(cryp == (char*) 0) { + continue; + } + *cryp++ = '\0'; + if(strcmp(line, authinfo) == 0) { + (void) fclose(fp); + if(strcmp(crypt(authpass, cryp), cryp) == 0) { + remoteuser = line; + return; + } else { + send_authenticate(realmName, is_ssl); + } + } + } + (void) fclose(fp); + send_authenticate(realmName, is_ssl); +} + +static int b64_decode(const char* str, unsigned char* space, int size) { + const char* cp; + int space_idx, phase; + int d, prev_d = 0; + unsigned char c; + + space_idx = 0; + phase = 0; + for(cp = str; *cp != '\0'; ++cp) { + d = b64_decode_table[(int) *cp]; + if(d != -1) { + switch(phase) { + case 0: + ++phase; + break; + case 1: + c = ((prev_d << 2) | ((d & 0x30) >> 4)); + if(space_idx < size) { + space[space_idx++] = c; + } + ++phase; + break; + case 2: + c = (((prev_d & 0xf) << 4) | ((d & 0x3c) >> 2)); + if(space_idx < size) { + space[space_idx++] = c; + } + ++phase; + break; + case 3: + c = (((prev_d & 0x03) << 6) | d); + if(space_idx < size) { + space[space_idx++] = c; + } + phase = 0; + break; + } + prev_d = d; + } + } + return space_idx; +} + +static char* build_env(char* fmt, char* arg) { + char* cp; + int size; + static char* buf; + static int maxbuf = 0; + + size = strlen(fmt) + strlen(arg); + if(size > maxbuf) { + if(maxbuf == 0) { + maxbuf = MAX(200, size + 100); + buf = (char*) e_malloc(maxbuf); + } else { + maxbuf = MAX(maxbuf * 2, size * 5 / 4); + buf = (char*) e_realloc((void*) buf, maxbuf); + } + } + (void) snprintf(buf, maxbuf, fmt, arg); + cp = e_strdup(buf); + return cp; +} + +static void cgi_interpose_input(int wfd, int is_ssl) { + size_t c; + ssize_t r, r2; + char buf[1024]; + + c = request_len - request_idx; + if(c > 0) { + if(write(wfd, &(request[request_idx]), c) != c) { + return; + } + } + while(c < content_length) { + r = my_read(buf, MIN( sizeof(buf), content_length - c), is_ssl); + if(r < 0 && (errno == EINTR || errno == EAGAIN)) { + sleep(1); + continue; + } + if(r <= 0) { + return; + } + for(;;) { + r2 = write(wfd, buf, r); + if(r2 < 0 && (errno == EINTR || errno == EAGAIN)) { + sleep(1); + continue; + } + if(r2 != r) { + return; + } + break; + } + c += r; + } + post_post_garbage_hack(is_ssl); +} + +static void cgi_interpose_output(int rfd, int parse_headers, int is_ssl) { + ssize_t r, r2; + char buf[1024]; + + if(!parse_headers) { + char http_head[] = "HTTP/1.0 200 OK\015\012"; + (void) my_write(http_head, sizeof(http_head), is_ssl); + } else { + size_t headers_size, headers_len; + char* headers; + char* br; + int status; + char* title; + char* cp; + headers_size = 0; + add_to_buf(&headers, &headers_size, &headers_len, (char*) 0, 0); + for(;;) { + r = read(rfd, buf, sizeof(buf)); + if(r < 0 && (errno == EINTR || errno == EAGAIN)) { + sleep(1); + continue; + } + if(r <= 0) { + br = &(headers[headers_len]); + break; + } + add_to_buf(&headers, &headers_size, &headers_len, buf, r); + if((br = strstr(headers, "\015\012\015\012")) != (char*) 0 || (br = strstr(headers, "\012\012")) != (char*) 0) { + break; + } + } + if(headers[0] == '\0') { + return; + } + status = 200; + if((cp = strstr(headers, "Status:")) != (char*) 0 && cp < br && (cp == headers || *(cp-1) == '\012')) { + cp += 7; + cp += strspn(cp, " \t"); + status = atoi(cp); + } + if((cp = strstr(headers, "Location:")) != (char*) 0 && cp < br && (cp == headers || *(cp-1) == '\012')) { + status = 302; + } + switch(status) { + case 200: + title = "OK"; + break; + case 302: + title = "Found"; + break; + case 304: + title = "Not Modified"; + break; + case 400: + title = "Bad Request"; + break; + case 401: + title = "Unauthorized"; + break; + case 403: + title = "Forbidden"; + break; + case 404: + title = "Not Found"; + break; + case 408: + title = "Request Timeout"; + break; + case 500: + title = "Internal Error"; + break; + case 501: + title = "Not Implemented"; + break; + case 503: + title = "Service Temporarily Overloaded"; + break; + default: + title = "Something"; + break; + } + (void) snprintf(buf, sizeof(buf), "HTTP/1.0 %d %s\015\012", status, title); + (void) my_write(buf, strlen(buf), is_ssl); + if(strstr(headers, "Server:") == NULL) { + char line[200]; + sprintf(line, "Server: %s\015\012", SERVER_SOFTWARE); + (void) my_write(line, strlen(line), is_ssl); + } + if(strstr(headers, "Date:") == NULL) { + char line[200]; + char timebuf[100]; + time_t now = time((time_t*) 0); + const char* rfc1123_fmt = "%a, %d %b %Y %H:%M:%S GMT"; + (void) strftime(timebuf, sizeof(timebuf), rfc1123_fmt, gmtime(&now)); + sprintf(line, "Date: %s\015\012", timebuf); + (void) my_write(line, strlen(line), is_ssl); + if(strstr(headers, "Expires:") == NULL) { + sprintf(line, "Expires: %s\015\012", timebuf); + (void) my_write(line, strlen(line), is_ssl); + } + } else if(strstr(headers, "Expires:") == NULL) { + char* line = "Expires: Thu, 01 Jan 1970 00:00:00 GMT\015\012"; + (void) my_write(line, strlen(line), is_ssl); + } + (void) my_write(headers, headers_len, is_ssl); + } + for(;;) { + r = read(rfd, buf, sizeof(buf)); + if(r < 0 && (errno == EINTR || errno == EAGAIN)) { + sleep(1); + continue; + } + if(r <= 0) { + goto done; + } + for(;;) { + r2 = my_write(buf, r, is_ssl); + if(r2 < 0 && (errno == EINTR || errno == EAGAIN)) { + sleep(1); + continue; + } + if(r2 != r) { + goto done; + } + break; + } + } +done: + shutdown(conn_fd, SHUT_WR); +} + +static void check_referer(int is_ssl) { + char* cp; + + if(url_pattern == (char*) 0) { + return; + } + if(really_check_referer()) { + return; + } + cp = hostname; + if(cp == (char*) 0) { + cp = ""; + } + syslog(LOG_INFO, "%.80s non-local referer \"%.80s%.80s\" \"%.80s\"", ntoa(&client_addr), cp, path, referer); + send_error(403, "Forbidden", "", "You must supply a local referer.", is_ssl); +} + +static void clear_ndelay(int fd) { + int flags, newflags; + + flags = fcntl(fd, F_GETFL, 0); + if(flags != -1) { + newflags = flags & ~ (int) O_NDELAY; + if(newflags != flags) { + (void) fcntl(fd, F_SETFL, newflags); + } + } +} + +static void de_dotdot(char* file) { + char* cp; + char* cp2; + int l; + + while((cp = strstr(file, "//")) != (char*) 0) { + for(cp2 = cp + 2; *cp2 == '/'; ++cp2) { + continue; + } + (void) strcpy(cp + 1, cp2); + } + while(strncmp(file, "./", 2) == 0) { + (void) strcpy(file, file + 2); + } + while((cp = strstr( file, "/./")) != (char*) 0) { + (void) strcpy(cp, cp + 2); + } + for(;;) { + while(strncmp(file, "../", 3) == 0) { + (void) strcpy( file, file + 3 ); + } + cp = strstr(file, "/../"); + if(cp == (char*) 0) { + break; + } + for(cp2 = cp - 1; cp2 >= file && *cp2 != '/'; --cp2) { + continue; + } + (void) strcpy(cp2 + 1, cp + 4); + } + while((l = strlen(file)) > 3 && strcmp((cp = file + l - 3), "/..") == 0) { + for(cp2 = cp - 1; cp2 >= file && *cp2 != '/'; --cp2) { + continue; + } + if(cp2 < file) { + break; + } + *cp2 = '\0'; + } +} + +static void do_cgi(int is_ssl, unsigned short conn_port) { + char** argp; + char** envp; + int parse_headers; + char* binary; + char* directory; + + if(method != METHOD_GET && method != METHOD_POST) { + send_error(501, "Not Implemented", "", "That method is not implemented for CGI.", is_ssl); + } + if(conn_fd == STDIN_FILENO || conn_fd == STDOUT_FILENO || conn_fd == STDERR_FILENO) { + int newfd = dup2(conn_fd, STDERR_FILENO + 1); + if(newfd >= 0) { + conn_fd = newfd; + } + } + envp = make_envp(is_ssl, conn_port); + argp = make_argp(); + if((method == METHOD_POST && request_len > request_idx) || is_ssl) { + int p[2]; + int r; + if(pipe(p) < 0) { + send_error(500, "Internal Error", "", "Something unexpected went wrong making a pipe.", is_ssl); + } + r = fork(); + if(r < 0) { + send_error(500, "Internal Error", "", "Something unexpected went wrong forking an interposer.", is_ssl); + } + if(r == 0) { + (void) close(p[0]); + cgi_interpose_input(p[1], is_ssl); + exit(0); + } + (void) close(p[1]); + if(p[0] != STDIN_FILENO) { + (void) dup2(p[0], STDIN_FILENO); + (void) close(p[0]); + } + } else { + if(conn_fd != STDIN_FILENO) { + (void) dup2(conn_fd, STDIN_FILENO); + } + } + if(strncmp(argp[0], "nph-", 4) == 0) { + parse_headers = 0; + } else { + parse_headers = 1; + } + if(parse_headers || is_ssl) { + int p[2]; + int r; + if(pipe(p) < 0) { + send_error(500, "Internal Error", "", "Something unexpected went wrong making a pipe.", is_ssl); + } + r = fork(); + if(r < 0) { + send_error(500, "Internal Error", "", "Something unexpected went wrong forking an interposer.", is_ssl); + } + if(r == 0) { + (void) close(p[1]); + cgi_interpose_output(p[0], parse_headers, is_ssl); + exit(0); + } + (void) close(p[0]); + if(p[1] != STDOUT_FILENO) { + (void) dup2(p[1], STDOUT_FILENO); + } + if(p[1] != STDERR_FILENO) { + (void) dup2(p[1], STDERR_FILENO); + } + if(p[1] != STDOUT_FILENO && p[1] != STDERR_FILENO) { + (void) close(p[1]); + } + } else { + if(conn_fd != STDOUT_FILENO) { + (void) dup2(conn_fd, STDOUT_FILENO); + } + if(conn_fd != STDERR_FILENO) { + (void) dup2(conn_fd, STDERR_FILENO); + } + } + if(logfp != (FILE*) 0) { + (void) fclose(logfp); + } + closelog(); + if(nice(CGI_NICE) < 0) { ; } + directory = e_strdup(file); + binary = strrchr(directory, '/'); + if(binary == (char*) 0) { + binary = file; + } else { + *binary++ = '\0'; + if(chdir(directory) < 0) { ; } + } + (void) signal(SIGPIPE, SIG_DFL); + (void) execve(binary, argp, envp); + send_error(500, "Internal Error", "", "Something unexpected went wrong running a CGI program.", is_ssl); +} + +static void do_dir(int is_ssl) { + char buf[10000]; + size_t buflen; + char* contents; + size_t contents_size, contents_len; + int n, i; + struct dirent **dl; + char* name_info; + + if(pathinfo != (char*) 0) { + send_error(404, "Not Found", "", "File not found.", is_ssl); + } + auth_check(file, is_ssl); + check_referer(is_ssl); + n = scandir(file, &dl, NULL, alphasort); + if(n < 0) { + syslog(LOG_INFO, "%.80s Directory \"%.80s\" is protected", ntoa(&client_addr), path); + send_error(403, "Forbidden", "", "Directory is protected.", is_ssl); + } + contents_size = 0; + buflen = snprintf(buf, sizeof(buf), "\nIndex of %s\n\n

Index of %s

\n", file, file);
+	add_to_buf(&contents, &contents_size, &contents_len, buf, buflen);
+	for(i = 0; i < n; ++i) {
+		if(strcmp(dl[i]->d_name, ".") == 0) {
+			continue;
+		}
+		name_info = file_details(file, dl[i]->d_name);
+		add_to_buf(&contents, &contents_size, &contents_len, name_info, strlen(name_info));
+	}
+	buflen = snprintf(buf, sizeof(buf), "
\n%s\n\n\n", SERVER_SOFTWARE); + add_to_buf(&contents, &contents_size, &contents_len, buf, buflen); + add_headers(200, "Ok", "", "", "text/html; charset=%s", contents_len, sb.st_mtime); + if(method != METHOD_HEAD) { + add_to_response(contents, contents_len); + } + send_response(is_ssl); +} + +static void do_file(int is_ssl, unsigned short conn_port) { + char buf[10000]; + char mime_encodings[500]; + const char* mime_type; + char fixed_mime_type[500]; + char* cp; + int fd; + + (void) strncpy(buf, file, sizeof(buf)); + cp = strrchr(buf, '/'); + if(cp == (char*) 0) { + (void) strcpy(buf, "."); + } else { + *cp = '\0'; + } + auth_check(buf, is_ssl); + if(strcmp(file, AUTH_FILE) == 0 || (strcmp(&(file[strlen(file) - sizeof(AUTH_FILE) + 1]), AUTH_FILE) == 0 && file[strlen(file) - sizeof(AUTH_FILE)] == '/')) { + syslog(LOG_NOTICE, "%.80s URL \"%.80s\" tried to retrieve an auth file", ntoa(&client_addr), path); + send_error(403, "Forbidden", "", "File is protected.", is_ssl); + } + if(defaultRealmName != NULL && defaultRealmPasswordFile != NULL) { + if(strcmp(file, defaultRealmPasswordFile) == 0 || strcmp(&(file[strlen(file) - sizeof(defaultRealmPasswordFile) + 1]), defaultRealmPasswordFile) == 0 && file[strlen(file) - sizeof(defaultRealmPasswordFile)] == '/') { + syslog(LOG_NOTICE, "%.80s URL \"%.80s\" tried to retrieve an auth file", ntoa(&client_addr), path); + send_error(403, "Forbidden", "", "File is protected.", is_ssl); + } + } + check_referer(is_ssl); + if(cgi_pattern != (char*) 0 && match(cgi_pattern, file)) { + do_cgi(is_ssl, conn_port); + return; + } else if(pathinfo != (char*) 0) { + send_error(404, "Not Found", "", "File not found.", is_ssl); + } + fd = open(file, O_RDONLY); + if(fd < 0) { + syslog(LOG_INFO, "%.80s File \"%.80s\" is protected", ntoa(&client_addr), path); + send_error(403, "Forbidden", "", "File is protected.", is_ssl); + } + mime_type = figure_mime(file, mime_encodings, sizeof(mime_encodings)); + (void) snprintf(fixed_mime_type, sizeof(fixed_mime_type), mime_type, charset); + if(if_modified_since != (time_t) -1 && if_modified_since >= sb.st_mtime) { + add_headers(304, "Not Modified", "", mime_encodings, fixed_mime_type, (off_t) -1, sb.st_mtime); + send_response(is_ssl); + return; + } + add_headers(200, "Ok", "", mime_encodings, fixed_mime_type, sb.st_size, sb.st_mtime); + send_response(is_ssl); + if(method == METHOD_HEAD) { + return; + } + if(sb.st_size > 0) { + send_via_write(fd, sb.st_size, is_ssl); + } + (void) close(fd); +} + +static void* e_malloc(size_t size) { + void* ptr; + + ptr = malloc(size); + if(ptr == (void*) 0) { + syslog(LOG_CRIT, "out of memory"); + (void) fprintf(stderr, "%s: out of memory\n", argv0); + exit(1); + } + return ptr; +} + +static void* e_realloc(void* optr, size_t size) { + void* ptr; + + ptr = realloc(optr, size); + if(ptr == (void*) 0) { + syslog(LOG_CRIT, "out of memory"); + (void) fprintf(stderr, "%s: out of memory\n", argv0); + exit(1); + } + return ptr; +} + +static char* e_strdup(char* ostr) { + char* str; + + str = strdup(ostr); + if(str == (char*) 0) { + syslog(LOG_CRIT, "out of memory copying a string"); + (void) fprintf(stderr, "%s: out of memory copying a string\n", argv0); + exit(1); + } + return str; +} + +static int ext_compare(struct mime_entry* a, struct mime_entry* b) { + return strcmp(a->ext, b->ext); +} + +static const char* figure_mime(char* name, char* me, size_t me_size) { + char* prev_dot; + char* dot; + char* ext; + int me_indexes[100], n_me_indexes; + size_t ext_len, me_len; + int i, top, bot, mid; + int r; + const char* default_type = "application/octet-stream "; + const char* type; + + n_me_indexes = 0; + for(prev_dot = &name[strlen(name)]; ; prev_dot = dot) { + for(dot = prev_dot - 1; dot >= name && *dot != '.'; --dot); + if(dot < name) { + type = default_type; + goto done; + } + ext = dot + 1; + ext_len = prev_dot - ext; + for(i = 0; i < n_enc_tab; ++i) { + if(ext_len == enc_tab[i].ext_len && strncasecmp(ext, enc_tab[i].ext, ext_len) == 0) { + if(n_me_indexes < sizeof(me_indexes)/sizeof(*me_indexes)) { + me_indexes[n_me_indexes] = i; + ++n_me_indexes; + } + goto next; + } + } + break; + next: ; + } + top = n_typ_tab - 1; + bot = 0; + while(top >= bot) { + mid = (top + bot) / 2; + r = strncasecmp(ext, typ_tab[mid].ext, ext_len); + if(r < 0) { + top = mid - 1; + } else if(r > 0) { + bot = mid + 1; + } else if(ext_len < typ_tab[mid].ext_len) { + top = mid - 1; + } else if(ext_len > typ_tab[mid].ext_len) { + bot = mid + 1; + } else { + type = typ_tab[mid].val; + goto done; + } + } + type = default_type; + done: + me[0] = '\0'; + me_len = 0; + for(i = n_me_indexes - 1; i >= 0; --i) { + if(me_len + enc_tab[me_indexes[i]].val_len + 1 < me_size) { + if(me[0] != '\0') { + (void) strcpy(&me[me_len], ","); + ++me_len; + } + (void) strcpy(&me[me_len], enc_tab[me_indexes[i]].val); + me_len += enc_tab[me_indexes[i]].val_len; + } + } + return type; +} + +static char* file_details(const char* dir, const char* name) { + struct stat sb; + char f_time[20]; + static char encname[1000]; + static char buf[2000]; + + (void) snprintf(buf, sizeof(buf), "%s/%s", dir, name); + if(lstat(buf, &sb) < 0) + return "???"; + (void) strftime(f_time, sizeof(f_time), "%d-%b-%Y %H:%M", localtime(&sb.st_mtime)); + strencode(encname, sizeof(encname), name); + (void) snprintf(buf, sizeof(buf), "%-50s %15s %14lld\n", encname, name, f_time, (long long int) sb.st_size); + return buf; +} + +static char* get_method_str(int m) { + switch(m) { + case METHOD_GET: + return "GET"; + case METHOD_HEAD: + return "HEAD"; + case METHOD_POST: + return "POST"; + default: + return "UNKNOWN"; + } +} + +static int get_pathinfo(void) { + int r; + + pathinfo = &file[strlen(file)]; + for(;;) { + do { + --pathinfo; + if(pathinfo <= file) { + pathinfo = (char*) 0; + return -1; + } + } while(*pathinfo != '/'); + *pathinfo = '\0'; + r = stat(file, &sb); + if(r >= 0) { + ++pathinfo; + return r; + } else { + *pathinfo = '/'; + } + } +} + +static char* get_request_line(void) { + int i; + char c; + + for(i = request_idx; request_idx < request_len; ++request_idx) { + c = request[request_idx]; + if(c == '\012' || c == '\015') { + request[request_idx] = '\0'; + ++request_idx; + if(c == '\015' && request_idx < request_len && request[request_idx] == '\012') { + request[request_idx] = '\0'; + ++request_idx; + } + return &(request[i]); + } + } + return (char*) 0; +} + +static void handle_read_timeout(int sig, int is_ssl) { + syslog(LOG_INFO, "%.80s connection timed out reading", ntoa(&client_addr)); + send_error(408, "Request Timeout", "", "No request appeared within a reasonable time period.", is_ssl); +} + +static void handle_read_timeout_sig(int sig) { + handle_read_timeout(0,0); +} + +static void handle_request(int is_ssl, unsigned short conn_port) { + char* method_str; + char* line; + char* cp; + int r, file_len, i; + const char* index_names[] = {"default.html", "default.htm", "index.html", "index.htm", "index.cgi", "index.sh" }; + + (void) signal(SIGALRM, handle_read_timeout_sig); + (void) alarm(READ_TIMEOUT); + + remoteuser = (char*) 0; + method = METHOD_UNKNOWN; + path = (char*) 0; + file = (char*) 0; + pathinfo = (char*) 0; + query = ""; + protocol = (char*) 0; + status = 0; + bytes = -1; + authorization = (char*) 0; + content_type = (char*) 0; + content_length = -1; + cookie = (char*) 0; + host = (char*) 0; + if_modified_since = (time_t) -1; + referer = ""; + useragent = ""; + +#ifdef TCP_NOPUSH + r = 1; + (void) setsockopt(conn_fd, IPPROTO_TCP, TCP_NOPUSH, (void*) &r, sizeof(r)); +#endif + if(is_ssl) { + ssl = SSL_new(ssl_ctx); + SSL_set_fd(ssl, conn_fd); + int accept_ret = SSL_accept(ssl); + if(accept_ret <= 0) { + int e = SSL_get_error(ssl, accept_ret); + if(e != VERSION_ERROR) { + syslog(LOG_CRIT, "error: can't initialize ssl connection, error = %d\n", e); + } + exit(1); + } + } + start_request(); + for(;;) { + char buf[10000]; + int r = my_read( buf, sizeof(buf), is_ssl ); + if(r < 0 && (errno == EINTR || errno == EAGAIN)) { + continue; + } + if(r <= 0) { + break; + } + (void) alarm(READ_TIMEOUT); + add_to_request(buf, r); + if(strstr(request, "\015\012\015\012") != (char*) 0 || strstr(request, "\012\012") != (char*) 0) { + break; + } + } + method_str = get_request_line(); + if(method_str == (char*) 0) { + send_error(400, "Bad Request", "", "Can't parse request.", is_ssl); + } + path = strpbrk(method_str, " \t\012\015"); + if(path == (char*) 0) { + send_error(400, "Bad Request", "", "Can't parse request.", is_ssl); + } + *path++ = '\0'; + path += strspn(path, " \t\012\015"); + protocol = strpbrk(path, " \t\012\015"); + if(protocol == (char*) 0) { + send_error(400, "Bad Request", "", "Can't parse request.", is_ssl); + } + *protocol++ = '\0'; + protocol += strspn(protocol, " \t\012\015"); + query = strchr(path, '?'); + if(query == (char*) 0) { + query = ""; + } else { + *query++ = '\0'; + } + while((line = get_request_line()) != (char*) 0) { + if(line[0] == '\0') { + break; + } else if(strncasecmp(line, "Authorization:", 14) == 0) { + cp = &line[14]; + cp += strspn(cp, " \t"); + authorization = cp; + } else if(strncasecmp(line, "Content-Length:", 15) == 0) { + cp = &line[15]; + cp += strspn(cp, " \t"); + content_length = atol(cp); + } else if(strncasecmp(line, "Content-Type:", 13) == 0) { + cp = &line[13]; + cp += strspn(cp, " \t"); + content_type = cp; + } else if(strncasecmp(line, "Cookie:", 7) == 0) { + cp = &line[7]; + cp += strspn(cp, " \t"); + cookie = cp; + } else if(strncasecmp(line, "Host:", 5) == 0) { + cp = &line[5]; + cp += strspn(cp, " \t"); + host = cp; + if(strchr(host, '/') != (char*) 0 || host[0] == '.') { + send_error(400, "Bad Request", "", "Can't parse request.", is_ssl); + } + } else if(strncasecmp(line, "If-Modified-Since:", 18) == 0) { + cp = &line[18]; + cp += strspn(cp, " \t"); + if_modified_since = dateparse(cp); + } else if(strncasecmp(line, "Referer:", 8) == 0) { + cp = &line[8]; + cp += strspn(cp, " \t"); + referer = cp; + } else if(strncasecmp(line, "User-Agent:", 11) == 0) { + cp = &line[11]; + cp += strspn(cp, " \t"); + useragent = cp; + } + } + if(strcasecmp(method_str, get_method_str(METHOD_GET)) == 0) { + method = METHOD_GET; + } else if(strcasecmp(method_str, get_method_str(METHOD_HEAD)) == 0) { + method = METHOD_HEAD; + } else if(strcasecmp(method_str, get_method_str(METHOD_POST)) == 0) { + method = METHOD_POST; + } else { + send_error(501, "Not Implemented", "", "That method is not implemented.", is_ssl); + } + strdecode(path, path); + if(path[0] != '/') { + send_error(400, "Bad Request", "", "Bad filename.", is_ssl); + } + file = &(path[1]); + de_dotdot(file); + if(file[0] == '\0') { + file = "./"; + } + if(file[0] == '/' || (file[0] == '.' && file[1] == '.' && (file[2] == '\0' || file[2] == '/'))) { + send_error(400, "Bad Request", "", "Illegal filename.", is_ssl); + } + + (void) signal(SIGALRM, handle_write_timeout); + (void) alarm(WRITE_TIMEOUT); + r = stat(file, &sb); + if(r < 0) { + r = get_pathinfo(); + } + if(r < 0) { + if(pageNotFoundFile != NULL && host != NULL) { + send_redirect("", host, pageNotFoundFile, is_ssl); + } else { + send_error(404, "Not Found", "", "File not found.", is_ssl); + } + } + file_len = strlen( file ); + if(!S_ISDIR(sb.st_mode)) { + while(file[file_len - 1] == '/') { + file[file_len - 1] = '\0'; + --file_len; + } + do_file(is_ssl, conn_port); + } else { + char idx[10000]; + unsigned char found_index = 0; + if(file[file_len - 1] != '/' && pathinfo == (char*) 0) { + char location[10000]; + if(query[0] != '\0') { + (void) snprintf(location, sizeof(location), "Location: %s/?%s", path, query); + } else { + (void) snprintf(location, sizeof(location), "Location: %s/", path); + send_error(302, "Found", location, "Directories must end with a slash.", is_ssl); + } + } + if(defaultPageFile != NULL) { + (void) snprintf(idx, sizeof(idx), "%s%s", file, defaultPageFile); + if(stat( idx, &sb ) >= 0) { + file = idx; + do_file(is_ssl, conn_port); + found_index = 1; + } + } + for(i = 0; i < (sizeof(index_names) / sizeof(char*)) && found_index == 0; ++i) { + (void) snprintf(idx, sizeof(idx), "%s%s", file, index_names[i]); + if(stat(idx, &sb) >= 0) { + file = idx; + do_file(is_ssl, conn_port); + found_index = 1; + } + } + if(found_index == 0) { + if(allowDirectoryListing == 0) { + if(pageNotFoundFile != NULL && host != NULL) { + send_redirect("", host, pageNotFoundFile, is_ssl); + } else { + send_error(404, "Not Found", "", "File not found.", is_ssl); + } + } else { + do_dir(is_ssl); + } + } + } + if(is_ssl) { + SSL_free(ssl); + } +} + +static void handle_sigchld(int sig) { + const int oerrno = errno; + pid_t pid; + int status; + + (void) signal(SIGCHLD, handle_sigchld); + for(;;) { + pid = waitpid((pid_t) -1, &status, WNOHANG); + if((int) pid == 0) { + break; + } + if((int) pid < 0) { + if(errno == EINTR || errno == EAGAIN) { + continue; + } + if(errno != ECHILD) { + syslog(LOG_ERR, "child wait - %m"); + perror("child wait"); + } + break; + } + } + errno = oerrno; +} + +static void handle_sighup(int sig) { + const int oerrno = errno; + + (void) signal(SIGHUP, handle_sighup); + got_hup = 1; + errno = oerrno; +} + +static void handle_sigterm(int sig) { + syslog(LOG_NOTICE, "exiting due to signal %d", sig); + (void) fprintf(stderr, "%s: exiting due to signal %d\n", argv0, sig); + closelog(); + exit(1); +} + +static void handle_write_timeout(int sig) { + syslog(LOG_INFO, "%.80s connection timed out writing", ntoa(&client_addr)); + exit(1); +} + +static int hexit(char c) { + if(c >= '0' && c <= '9') { + return c - '0'; + } + if(c >= 'a' && c <= 'f') { + return c - 'a' + 10; + } + if(c >= 'A' && c <= 'F') { + return c - 'A' + 10; + } + return 0; +} + +static void init_mime(void) { + int i; + + qsort(enc_tab, n_enc_tab, sizeof(*enc_tab), (int(*)(const void*, const void*)) ext_compare); + qsort(typ_tab, n_typ_tab, sizeof(*typ_tab), (int(*)(const void*, const void*)) ext_compare); + + for(i = 0; i < n_enc_tab; ++i) { + enc_tab[i].ext_len = strlen(enc_tab[i].ext); + enc_tab[i].val_len = strlen(enc_tab[i].val); + } + for(i = 0; i < n_typ_tab; ++i) { + typ_tab[i].ext_len = strlen(typ_tab[i].ext); + typ_tab[i].val_len = strlen(typ_tab[i].val); + } +} + +static int initialize_listen_socket(usockaddr* usaP) { + int listen_fd; + int i; + + if(!sockaddr_check(usaP)) { + syslog(LOG_ERR, "unknown sockaddr family on listen socket - %d", usaP->sa.sa_family); + (void) fprintf(stderr, "%s: unknown sockaddr family on listen socket - %d\n", argv0, usaP->sa.sa_family); + return -1; + } + listen_fd = socket(usaP->sa.sa_family, SOCK_STREAM, 0); + if(listen_fd < 0) { + if(usaP->sa.sa_family == AF_INET6 && (errno == ENOPROTOOPT || errno == EPROTONOSUPPORT || errno == ESOCKTNOSUPPORT || EPFNOSUPPORT || EAFNOSUPPORT)) { + /* IPv6 not compiled into kernel, no big deal, don't print errors */ + } else { + syslog(LOG_CRIT, "socket %.80s - %m", ntoa(usaP)); + perror("socket"); + } + return -1; + } + + (void) fcntl(listen_fd, F_SETFD, 1); + i = 1; + if(setsockopt(listen_fd, SOL_SOCKET, SO_REUSEADDR, (void*) &i, sizeof(i)) < 0) { + syslog(LOG_CRIT, "setsockopt SO_REUSEADDR - %m"); + perror("setsockopt SO_REUSEADDR"); + return -1; + } + if(bind(listen_fd, &usaP->sa, sockaddr_len(usaP)) < 0) { + syslog(LOG_CRIT, "bind %.80s - %m", ntoa(usaP)); + perror("bind"); + return -1; + } + if(listen(listen_fd, 1024) < 0) { + syslog(LOG_CRIT, "listen - %m"); + perror("listen"); + return -1; + } + return listen_fd; +} + +static void lookup_hostname(usockaddr* usa4P, usockaddr* usa4sP, size_t sa4_len, int* gotv4P, int* gotv4sP, usockaddr* usa6P, usockaddr* usa6sP, size_t sa6_len, int* gotv6P, int* gotv6sP) { + int port_index; + unsigned short port_list[4]; + port_list[0] = port; + port_list[1] = sslPort; + port_list[2] = 0; + + *gotv6P = 0; + *gotv6sP = 0; + *gotv4P = 0; + *gotv4sP = 0; + for(port_index=0; port_list[port_index] != 0; port_index++) { + struct addrinfo hints; + char portstr[10]; + int gaierr; + struct addrinfo* ai; + struct addrinfo* ai2; + struct addrinfo* aiv6; + struct addrinfo* aiv4; + (void) memset(&hints, 0, sizeof(hints)); + hints.ai_family = PF_UNSPEC; + hints.ai_flags = AI_PASSIVE; + hints.ai_socktype = SOCK_STREAM; + (void) snprintf(portstr, sizeof(portstr), "%d", (int) port_list[port_index]); + if((gaierr = getaddrinfo(hostname, portstr, &hints, &ai)) != 0) { + syslog(LOG_CRIT, "getaddrinfo %.80s - %s", hostname, gai_strerror(gaierr)); + (void) fprintf(stderr, "%s: getaddrinfo %.80s - %s\n", argv0, hostname, gai_strerror(gaierr)); + exit(1); + } + aiv6 = (struct addrinfo*) 0; + aiv4 = (struct addrinfo*) 0; + for(ai2 = ai; ai2 != (struct addrinfo*) 0; ai2 = ai2->ai_next) { + switch(ai2->ai_family) { + case AF_INET6: + if(aiv6 == (struct addrinfo*) 0) { + aiv6 = ai2; + } + break; + case AF_INET: + if(aiv4 == (struct addrinfo*) 0) { + aiv4 = ai2; + } + break; + } + } + if(aiv6 != (struct addrinfo*) 0) { + if(sa6_len < aiv6->ai_addrlen) { + syslog(LOG_CRIT, "%.80s - sockaddr too small (%lu < %lu)", hostname, (unsigned long) sa6_len, (unsigned long) aiv6->ai_addrlen); + (void) fprintf(stderr, "%s: %.80s - sockaddr too small (%lu < %lu)\n", argv0, hostname, (unsigned long) sa6_len, (unsigned long) aiv6->ai_addrlen); + exit(1); + } + if(port_index==0) { + *gotv6P = 1; + (void) memset(usa6P, 0, sa6_len); + (void) memmove(usa6P, aiv6->ai_addr, aiv6->ai_addrlen); + } else { + *gotv6sP = 1; + (void) memset(usa6sP, 0, sa6_len); + (void) memmove(usa6sP, aiv6->ai_addr, aiv6->ai_addrlen); + } + } + if(aiv4 != (struct addrinfo*) 0) { + if(sa4_len < aiv4->ai_addrlen) { + syslog(LOG_CRIT, "%.80s - sockaddr too small (%lu < %lu)", hostname, (unsigned long) sa4_len, (unsigned long) aiv4->ai_addrlen); + (void) fprintf(stderr, "%s: %.80s - sockaddr too small (%lu < %lu)\n", argv0, hostname, (unsigned long) sa4_len, (unsigned long) aiv4->ai_addrlen); + exit(1); + } + if(port_index == 0) { + *gotv4P = 1; + (void) memset(usa4P, 0, sa4_len); + (void) memmove(usa4P, aiv4->ai_addr, aiv4->ai_addrlen); + } else { + *gotv4sP = 1; + (void) memset(usa4sP, 0, sa4_len); + (void) memmove(usa4sP, aiv4->ai_addr, aiv4->ai_addrlen); + } + *gotv4P = 1; + } + freeaddrinfo(ai); + } +} + +int main(int argc, char** argv) { + int argn; + struct passwd* pwd; + uid_t uid = 32767; + gid_t gid = 32767; + usockaddr host_addr4; + usockaddr host_addr6; + int gotv4, gotv4s, gotv6, gotv6s; + fd_set lfdset; + int maxfd; + usockaddr usa; + int sz, r; + char* cp; + usockaddr host_addr4s; + usockaddr host_addr6s; + + argv0 = argv[0]; + debug = 0; + port = 0; + dir = (char*) 0; + data_dir = (char*) 0; + cgi_pattern = DEFAULT_CGI_PATTERN; + url_pattern = (char*) 0; + no_empty_referers = 0; + local_pattern = (char*) 0; + charset = DEFAULT_CHARSET; + language = DEFAULT_LANGUAGE; + p3p = (char*) 0; + max_age = -1; + user = DEFAULT_USER; + hostname = (char*) 0; + logfile = (char*) 0; + pidfile = (char*) 0; + logfp = (FILE*) 0; + do_ssl = 0; + certfile = DEFAULT_CERTFILE; + cipher = (char*) 0; + + defaultRealmName = NULL; + defaultRealmPasswordFile = NULL; + defaultPageFile = NULL; + pageNotFoundFile = NULL; + allowDirectoryListing = 1; + sslPort = 0; + argn = 1; + + while(argn < argc && argv[argn][0] == '-') { + if(strcmp( argv[argn], "-V" ) == 0) { + (void) printf("%s\n", SERVER_SOFTWARE); + exit(0); + } else if(strcmp(argv[argn], "-C") == 0 && argn + 1 < argc) { + ++argn; + read_config(argv[argn]); + } else if(strcmp(argv[argn], "-D") == 0) { + debug = 1; + } else if(strcmp(argv[argn], "-S") == 0) { + do_ssl = 1; + } else if(strcmp(argv[argn], "-E") == 0 && argn + 1 < argc) { + ++argn; + certfile = argv[argn]; + } else if(strcmp(argv[argn], "-Y") == 0 && argn + 1 < argc) { + ++argn; + cipher = argv[argn]; + } else if(strcmp(argv[argn], "-p") == 0 && argn + 1 < argc) { + ++argn; + port = (unsigned short) atoi(argv[argn]); + } else if(strcmp(argv[argn], "-d") == 0 && argn + 1 < argc) { + ++argn; + dir = argv[argn]; + } else if(strcmp(argv[argn], "-dd") == 0 && argn + 1 < argc) { + ++argn; + data_dir = argv[argn]; + } else if(strcmp(argv[argn], "-c") == 0 && argn + 1 < argc) { + ++argn; + cgi_pattern = argv[argn]; + } else if(strcmp(argv[argn], "-u") == 0 && argn + 1 < argc) { + ++argn; + user = argv[argn]; + } else if(strcmp(argv[argn], "-h") == 0 && argn + 1 < argc) { + ++argn; + hostname = argv[argn]; + } else if(strcmp(argv[argn], "-l") == 0 && argn + 1 < argc) { + ++argn; + logfile = argv[argn]; + } else if(strcmp(argv[argn], "-i") == 0 && argn + 1 < argc) { + ++argn; + pidfile = argv[argn]; + } else if(strcmp(argv[argn], "-T") == 0 && argn + 1 < argc) { + ++argn; + charset = argv[argn]; + } else if(strcmp(argv[argn], "-L") == 0 && argn + 1 < argc) { + ++argn; + language = argv[argn]; + } else if(strcmp(argv[argn], "-P") == 0 && argn + 1 < argc) { + ++argn; + p3p = argv[argn]; + } else if(strcmp(argv[argn], "-M") == 0 && argn + 1 < argc) { + ++argn; + max_age = atoi(argv[argn]); + } else if(strcmp(argv[argn], "-DRN") == 0 && argn + 1 < argc) { + ++argn; + defaultRealmName = argv[argn]; + } else if(strcmp(argv[argn], "-DRP") == 0 && argn + 1 < argc) { + ++argn; + defaultRealmPasswordFile = argv[argn]; + } else if(strcmp(argv[argn], "-DPF") == 0 && argn + 1 < argc) { + ++argn; + defaultPageFile = argv[argn]; + } else if(strcmp(argv[argn], "-PNF") == 0 && argn + 1 < argc) { + ++argn; + pageNotFoundFile = argv[argn]; + } else if(strcmp(argv[argn], "-ADL") == 0 && argn + 1 < argc) { + ++argn; + if(strcmp(argv[argn], "1") == 0 || strcmp(argv[argn], "true") == 0 || strcmp(argv[argn], "TRUE") == 0 || strcmp(argv[argn], "yes") == 0 || strcmp(argv[argn], "YES") == 0) { + allowDirectoryListing = 1; + } else { + allowDirectoryListing = 0; + } + } else if(strcmp(argv[argn], "-SP") == 0 && argn + 1 < argc) { + ++argn; + sslPort = (unsigned short) atoi(argv[argn]); + } else { + usage(); + } + ++argn; + } + if(argn != argc) { + usage(); + } + + cp = strrchr(argv0, '/'); + if(cp != (char*) 0) { + ++cp; + } else { + cp = argv0; + } + openlog(cp, LOG_NDELAY|LOG_PID, LOG_DAEMON); + + if(port == 0) { + if(sslPort != 0 && do_ssl) { + port = sslPort; + sslPort = 0; + } + if(do_ssl) { + port = DEFAULT_HTTPS_PORT; + } else { + port = DEFAULT_HTTP_PORT; + } + } + + if(getuid() == 0) { + pwd = getpwnam(user); + if(pwd == (struct passwd*) 0) { + syslog(LOG_CRIT, "unknown user - '%s'", user); + (void) fprintf(stderr, "%s: unknown user - '%s'\n", argv0, user); + exit(1); + } + uid = pwd->pw_uid; + gid = pwd->pw_gid; + } + + if(logfile != (char*) 0) { + logfp = fopen(logfile, "a"); + if(logfp == (FILE*) 0) { + syslog(LOG_CRIT, "%s - %m", logfile); + perror(logfile); + exit(1); + } + if(logfile[0] != '/') { + syslog(LOG_WARNING, "logfile is not an absolute path, you may not be able to re-open it"); + (void) fprintf(stderr, "%s: logfile is not an absolute path, you may not be able to re-open it\n", argv0); + } + if(getuid() == 0) { + if(fchown(fileno(logfp), uid, gid) < 0) { + syslog(LOG_WARNING, "fchown logfile - %m"); + perror("fchown logfile"); + } + } + } + + lookup_hostname(&host_addr4, &host_addr4s, sizeof(struct sockaddr_in), &gotv4, &gotv4s, &host_addr6, &host_addr6s, sizeof(struct sockaddr_in6), &gotv6, &gotv6s); + if(hostname == (char*) 0) { + (void) gethostname(hostname_buf, sizeof(hostname_buf)); + hostname = hostname_buf; + } + if(!( gotv4 || gotv4s || gotv6 || gotv6s)) { + syslog(LOG_CRIT, "can't find any valid address"); + (void) fprintf(stderr, "%s: can't find any valid address\n", argv0); + exit(1); + } + + listen6_fd = -1; + listen6s_fd = -1; + listen4_fd = -1; + listen4s_fd = -1; + if(gotv6) { + listen6_fd = initialize_listen_socket(&host_addr6); + } + if(gotv6s) { + listen6s_fd = initialize_listen_socket(&host_addr6s); + } + if(gotv4) { + listen4_fd = initialize_listen_socket(&host_addr4); + } + if(gotv4s) { + listen4s_fd = initialize_listen_socket(&host_addr4s); + } + + if(listen4_fd == -1 && listen6_fd == -1 && listen4s_fd == -1 && listen6s_fd == -1) { + syslog(LOG_CRIT, "can't bind to any address"); + (void) fprintf(stderr, "%s: can't bind to any address\n", argv0); + exit(1); + } + + if(do_ssl) { + ssl_ctx = SSL_CTX_new(TLSv1_server_method()); + SSL_CTX_set_verify(ssl_ctx, SSL_VERIFY_NONE, 0); + if(certfile[0] != '\0') { + if(SSL_CTX_use_certificate_file(ssl_ctx, certfile, SSL_FILETYPE_PEM) != SSL_SUCCESS || SSL_CTX_use_PrivateKey_file(ssl_ctx, certfile, SSL_FILETYPE_PEM) != SSL_SUCCESS) { + syslog(LOG_CRIT, "can't load certificate and/or private key\n"); + exit(1); + } + } + if(cipher != (char*) 0) { + if(SSL_CTX_set_cipher_list(ssl_ctx, cipher) <= 0) { + syslog(LOG_CRIT, "can't load certificate and/or private key\n"); + exit(1); + } + } + } + + if(!debug) { + if(daemon(1, 0) < 0) { + syslog(LOG_CRIT, "daemon - %m"); + perror("daemon"); + exit(1); + } + } else { + (void) setsid(); + } + + if(pidfile != (char*) 0) { + FILE* pidfp = fopen(pidfile, "w"); + if(pidfp == (FILE*) 0) { + syslog(LOG_CRIT, "%s - %m", pidfile); + perror(pidfile); + exit(1); + } + (void) fprintf(pidfp, "%d\n", (int) getpid()); + (void) fclose(pidfp); + } + + tzset(); + + if(getuid() == 0) { + if(setgroups(0, (gid_t*) 0) < 0) { + syslog(LOG_CRIT, "setgroups - %m"); + perror("setgroups"); + exit(1); + } + if(setgid(gid) < 0) { + syslog(LOG_CRIT, "setgid - %m"); + perror("setgid"); + exit(1); + } + if(initgroups(user, gid ) < 0) { + syslog(LOG_ERR, "initgroups - %m"); + perror("initgroups"); + } + } + + if(dir != (char*) 0) { + if(chdir(dir) < 0) { + syslog(LOG_CRIT, "chdir - %m"); + perror("chdir"); + exit(1); + } + } + if(getcwd(cwd, sizeof(cwd) - 1) == NULL) { ; } + if(cwd[strlen(cwd) - 1] != '/') { + (void) strcat( cwd, "/" ); + } + if(data_dir != (char*) 0) { + if(chdir(data_dir) < 0) { + syslog(LOG_CRIT, "data_dir chdir - %m"); + perror("data_dir chdir"); + exit(1); + } + } + if(getuid() == 0) { + if(setuid(uid) < 0) { + syslog(LOG_CRIT, "setuid - %m"); + perror("setuid"); + exit(1); + } + } + + (void) signal(SIGTERM, handle_sigterm); + (void) signal(SIGINT, handle_sigterm); + (void) signal(SIGUSR1, handle_sigterm); + (void) signal(SIGHUP, handle_sighup); + (void) signal(SIGCHLD, handle_sigchld); + (void) signal(SIGPIPE, SIG_IGN); + got_hup = 0; + init_mime(); + + if(hostname == (char*) 0) { + syslog(LOG_NOTICE, "%.80s starting on port %d", SERVER_SOFTWARE, (int) port); + } else { + syslog(LOG_NOTICE, "%.80s starting on %.80s, port %d", SERVER_SOFTWARE, hostname, (int) port); + } + + for(;;) { + int is_ssl; + unsigned short conn_port; + if(got_hup) { + reopen_logfile(); + got_hup = 0; + } + FD_ZERO(&lfdset); + maxfd = -1; + if(listen4_fd != -1) { + FD_SET(listen4_fd, &lfdset); + if(listen4_fd > maxfd) { + maxfd = listen4_fd; + } + } + if(listen4s_fd != -1) { + FD_SET(listen4s_fd, &lfdset); + if(listen4s_fd > maxfd) { + maxfd = listen4s_fd; + } + } + if(listen6_fd != -1) { + FD_SET(listen6_fd, &lfdset); + if(listen6_fd > maxfd) { + maxfd = listen6_fd; + } + } + if(listen6s_fd != -1) { + FD_SET(listen6s_fd, &lfdset); + if(listen6s_fd > maxfd) { + maxfd = listen6s_fd; + } + } + if(select(maxfd + 1, &lfdset, (fd_set*) 0, (fd_set*) 0, (struct timeval*) 0) < 0) { + if(errno == EINTR || errno == EAGAIN) { + continue; + } + syslog(LOG_CRIT, "select - %m"); + perror("select"); + exit(1); + } + is_ssl= 0; + conn_port = port; + if(do_ssl) { + if(sslPort == 0) { + is_ssl= 1; + } else if(listen4s_fd != -1 && FD_ISSET(listen4s_fd, &lfdset)) { + is_ssl = 1; + conn_port = sslPort; + } else if(listen6s_fd != -1 && FD_ISSET(listen6s_fd, &lfdset)) { + is_ssl = 1; + conn_port = sslPort; + } + } + sz = sizeof(usa); + if(listen4_fd != -1 && FD_ISSET(listen4_fd, &lfdset)) { + conn_fd = accept(listen4_fd, &usa.sa, &sz); + } else if(listen4s_fd != -1 && FD_ISSET(listen4s_fd, &lfdset)) { + conn_fd = accept(listen4s_fd, &usa.sa, &sz); + } else if(listen6_fd != -1 && FD_ISSET(listen6_fd, &lfdset)) { + conn_fd = accept(listen6_fd, &usa.sa, &sz); + } else if(listen6s_fd != -1 && FD_ISSET(listen6s_fd, &lfdset)) { + conn_fd = accept(listen6s_fd, &usa.sa, &sz); + } else { + syslog(LOG_CRIT, "select failure"); + (void) fprintf(stderr, "%s: select failure\n", argv0); + exit(1); + } + if(conn_fd < 0) { + if(errno == EINTR || errno == EAGAIN) { + continue; + } +#ifdef EPROTO + if(errno == EPROTO) { + continue; + } +#endif + syslog(LOG_CRIT, "accept - %m"); + perror("accept"); + exit(1); + } + r = fork(); + if(r < 0) { + syslog(LOG_CRIT, "fork - %m"); + perror("fork"); + exit(1); + } + if(r == 0) { + client_addr = usa; + if(listen4_fd != -1) { + (void) close(listen4_fd); + } + if(listen4s_fd != -1) { + (void) close(listen4s_fd); + } + if(listen6_fd != -1) { + (void) close(listen6_fd); + } + if(listen6s_fd != -1) { + (void) close(listen6s_fd); + } + handle_request(is_ssl, conn_port); + exit(0); + } + (void) close(conn_fd); + } +} + +static char** make_argp(void) { + char** argp; + int argn; + char* cp1; + char* cp2; + + argp = (char**) malloc((strlen(query) + 2) * sizeof(char*)); + if(argp == (char**) 0) { + return (char**) 0; + } + argp[0] = strrchr(file, '/'); + if(argp[0] != (char*) 0) { + ++argp[0]; + } else { + argp[0] = file; + } + argn = 1; + if(strchr(query, '=') == (char*) 0) { + for(cp1 = cp2 = query; *cp2 != '\0'; ++cp2) { + if(*cp2 == '+') { + *cp2 = '\0'; + strdecode(cp1, cp1); + argp[argn++] = cp1; + cp1 = cp2 + 1; + } + } + if(cp2 != cp1) { + strdecode(cp1, cp1); + argp[argn++] = cp1; + } + } + argp[argn] = (char*) 0; + return argp; +} + +static char** make_envp(int is_ssl, unsigned short conn_port) { + static char* envp[50]; + int envn; + char* cp; + char buf[256]; + + envn = 0; + envp[envn++] = build_env("PATH=%s", CGI_PATH); + envp[envn++] = build_env("LD_LIBRARY_PATH=%s", CGI_LD_LIBRARY_PATH); + envp[envn++] = build_env("SERVER_SOFTWARE=%s", SERVER_SOFTWARE); + envp[envn++] = build_env("WEBUI_LANGUAGE=%s", language); + cp = hostname; + if(cp != (char*) 0) { + envp[envn++] = build_env("SERVER_NAME=%s", cp); + } + envp[envn++] = "GATEWAY_INTERFACE=CGI/1.1"; + envp[envn++] = "SERVER_PROTOCOL=HTTP/1.0"; + (void) snprintf(buf, sizeof(buf), "%d", (int) conn_port); + envp[envn++] = build_env("SERVER_PORT=%s", buf); + envp[envn++] = build_env("REQUEST_METHOD=%s", get_method_str(method)); + envp[envn++] = build_env("SCRIPT_NAME=%s", path); + if(pathinfo != (char*) 0) { + envp[envn++] = build_env("PATH_INFO=/%s", pathinfo); + (void) snprintf(buf, sizeof(buf), "%s%s", cwd, pathinfo); + envp[envn++] = build_env("PATH_TRANSLATED=%s", buf); + } + if(query[0] != '\0') { + envp[envn++] = build_env("QUERY_STRING=%s", query); + } + envp[envn++] = build_env("REMOTE_ADDR=%s", ntoa(&client_addr)); + if(referer[0] != '\0') { + envp[envn++] = build_env("HTTP_REFERER=%s", referer); + } + if(useragent[0] != '\0') { + envp[envn++] = build_env("HTTP_USER_AGENT=%s", useragent); + } + if(cookie != (char*) 0) { + envp[envn++] = build_env("HTTP_COOKIE=%s", cookie); + } + if(host != (char*) 0) { + envp[envn++] = build_env("HTTP_HOST=%s", host); + } + if(content_type != (char*) 0) { + envp[envn++] = build_env("CONTENT_TYPE=%s", content_type); + } + if(content_length != -1) { + (void) snprintf(buf, sizeof(buf), "%lu", (unsigned long) content_length); + envp[envn++] = build_env("CONTENT_LENGTH=%s", buf); + } + if(remoteuser != (char*) 0) { + envp[envn++] = build_env("REMOTE_USER=%s", remoteuser); + } + if(authorization != (char*) 0) { + envp[envn++] = build_env("AUTH_TYPE=%s", "Basic"); + } + if(getenv("TZ") != (char*) 0) { + envp[envn++] = build_env("TZ=%s", getenv("TZ")); + } + envp[envn] = (char*) 0; + return envp; +} + +static void make_log_entry(void) { + char* ru; + char url[500]; + char bytes_str[40]; + time_t now; + struct tm* t; + const char* cernfmt_nozone = "%d/%b/%Y:%H:%M:%S"; + char date_nozone[100]; + int zone; + char sign; + char date[100]; + + if(logfp == (FILE*) 0) { + return; + } + if(protocol == (char*) 0) { + protocol = "UNKNOWN"; + } + if(path == (char*) 0) { + path = ""; + } + if(remoteuser != (char*) 0) { + ru = remoteuser; + } else { + ru = "-"; + } + now = time((time_t*) 0); + (void) snprintf(url, sizeof(url), "%s", path); + if(bytes >= 0) { + (void) snprintf(bytes_str, sizeof(bytes_str), "%lld", (long long int) bytes ); + } else { + (void) strcpy(bytes_str, "-"); + } + t = localtime(&now); + (void) strftime(date_nozone, sizeof(date_nozone), cernfmt_nozone, t); + zone = t->tm_gmtoff / 60L; + if(zone >= 0) { + sign = '+'; + } else { + sign = '-'; + zone = -zone; + } + zone = (zone / 60) * 100 + zone % 60; + (void) snprintf(date, sizeof(date), "%s %c%04d", date_nozone, sign, zone); + (void) fprintf(logfp, "%.80s - %.80s [%s] \"%.80s %.200s %.80s\" %d %s \"%.200s\" \"%.200s\"\n", ntoa(&client_addr), ru, date, get_method_str(method), url, protocol, status, bytes_str, referer, useragent); + (void) fflush(logfp); +} + +static ssize_t my_read(char* buf, size_t size, int is_ssl) { + if(is_ssl) { + return SSL_read(ssl, buf, size); + } else { + return read(conn_fd, buf, size); + } +} + +static ssize_t my_write(char* buf, size_t size, int is_ssl) { + if(is_ssl) { + return SSL_write(ssl, buf, size); + } else { + return write(conn_fd, buf, size); + } +} + +static void no_value_required(char* name, char* value) { + if(value != (char*) 0) { + (void) fprintf(stderr, "%s: no value required for %s option\n", argv0, name); + exit(1); + } +} + +static char* ntoa(usockaddr* usaP) { + static char str[200]; + + if(getnameinfo(&usaP->sa, sockaddr_len(usaP), str, sizeof(str), 0, 0, NI_NUMERICHOST) != 0) { + str[0] = '?'; + str[1] = '\0'; + } else if(IN6_IS_ADDR_V4MAPPED(&usaP->sa_in6.sin6_addr) && strncmp(str, "::ffff:", 7) == 0) { + (void) strcpy(str, &str[7]); + } + return str; +} + +static void post_post_garbage_hack(int is_ssl) { + char buf[2]; + + if(is_ssl) { + return; + } + set_ndelay(conn_fd); + if(read(conn_fd, buf, sizeof(buf)) < 0) { ; }; + clear_ndelay(conn_fd); +} + +static void read_config(char* filename) { + FILE* fp; + char line[10000]; + char* cp; + char* cp2; + char* name; + char* value; + + fp = fopen(filename, "r"); + if(fp == (FILE*) 0) { + syslog(LOG_CRIT, "%s - %m", filename); + perror(filename); + exit(1); + } + while(fgets(line, sizeof(line), fp) != (char*) 0) { + if((cp = strchr(line, '#')) != (char*) 0) { + *cp = '\0'; + } + cp = line; + cp += strspn(cp, " \t\012\015"); + while(*cp != '\0') { + cp2 = cp + strcspn(cp, " \t\012\015"); + while(*cp2 == ' ' || *cp2 == '\t' || *cp2 == '\012' || *cp2 == '\015') { + *cp2++ = '\0'; + } + name = cp; + value = strchr(name, '='); + if(value != (char*) 0) { + *value++ = '\0'; + } + if(strcasecmp(name, "debug") == 0) { + no_value_required(name, value); + debug = 1; + } else if(strcasecmp(name, "port") == 0) { + value_required(name, value); + port = (unsigned short) atoi(value); + } else if(strcasecmp(name, "dir") == 0) { + value_required(name, value); + dir = e_strdup(value); + } else if(strcasecmp(name, "data_dir") == 0) { + value_required(name, value); + data_dir = e_strdup(value); + } else if(strcasecmp(name, "user") == 0) { + value_required(name, value); + user = e_strdup(value); + } else if(strcasecmp(name, "cgipat") == 0) { + value_required(name, value); + cgi_pattern = e_strdup(value); + } else if(strcasecmp(name, "urlpat") == 0) { + value_required(name, value); + url_pattern = e_strdup(value); + } else if(strcasecmp(name, "noemptyreferers") == 0) { + value_required(name, value); + no_empty_referers = 1; + } else if(strcasecmp(name, "localpat") == 0) { + value_required(name, value); + local_pattern = e_strdup(value); + } else if(strcasecmp(name, "host") == 0) { + value_required(name, value); + hostname = e_strdup(value); + } else if(strcasecmp(name, "logfile") == 0) { + value_required(name, value); + logfile = e_strdup(value); + } else if(strcasecmp(name, "pidfile") == 0) { + value_required(name, value); + pidfile = e_strdup(value); + } else if(strcasecmp(name, "charset") == 0) { + value_required(name, value); + charset = e_strdup(value); + } else if(strcasecmp(name, "p3p") == 0) { + value_required(name, value); + p3p = e_strdup(value); + } else if(strcasecmp(name, "max_age") == 0) { + value_required(name, value); + max_age = atoi(value); + } else if(strcasecmp(name, "default_realm_name") == 0) { + value_required(name, value); + defaultRealmName = e_strdup(value); + } else if(strcasecmp(name, "default_realm_password_file") == 0) { + value_required(name, value); + defaultRealmPasswordFile = e_strdup(value); + } else if(strcasecmp(name, "default_page_file") == 0) { + value_required(name, value); + defaultPageFile = e_strdup(value); + } else if(strcasecmp(name, "page_not_found_file") == 0) { + value_required(name, value); + pageNotFoundFile = e_strdup(value); + } else if(strcasecmp(name, "allow_directory_listing") == 0) { + value_required(name, value); + if(strcmp(value, "1") == 0 || strcmp(value, "true") == 0 || strcmp(value, "TRUE") == 0 || strcmp(value, "yes") == 0 || strcmp(value, "YES") == 0) { + allowDirectoryListing = 1; + } else { + allowDirectoryListing = 0; + } + } else if(strcasecmp(name, "ssl") == 0) { + no_value_required(name, value); + do_ssl = 1; + } else if(strcasecmp(name, "certfile") == 0) { + value_required(name, value); + certfile = e_strdup(value); + } else if(strcasecmp(name, "cipher") == 0) { + value_required(name, value); + cipher = e_strdup(value); + } else { + (void) fprintf(stderr, "%s: unknown config option '%s'\n", argv0, name); + exit(1); + } + cp = cp2; + cp += strspn(cp, " \t\012\015"); + } + } + (void) fclose(fp); +} + +static int really_check_referer(void) { + char* cp1; + char* cp2; + char* cp3; + char* refhost; + char *lp; + + if(referer == (char*) 0 || referer[0] == '\0' || (cp1 = strstr(referer, "//")) == (char*) 0) { + if(no_empty_referers && match(url_pattern, path)) { + return 0; + } else { + return 1; + } + } + cp1 += 2; + for(cp2 = cp1; *cp2 != '/' && *cp2 != ':' && *cp2 != '\0'; ++cp2) { + continue; + } + refhost = (char*) e_malloc(cp2 - cp1 + 1); + for(cp3 = refhost; cp1 < cp2; ++cp1, ++cp3) { + if(isupper(*cp1)) { + *cp3 = tolower(*cp1); + } else { + *cp3 = *cp1; + } + } + *cp3 = '\0'; + if(local_pattern != (char*) 0) { + lp = local_pattern; + } else { + lp = hostname; + if(lp == (char*) 0) { + return 1; + } + } + if(!match(lp, refhost) && match(url_pattern, path)) { + return 0; + } else { + return 1; + } +} + +static void reopen_logfile(void) { + if(logfp != (FILE*) 0) { + (void) fclose(logfp); + logfp = (FILE*) 0; + } + if(logfile != (char*) 0) { + syslog(LOG_NOTICE, "re-opening logfile"); + logfp = fopen(logfile, "a"); + if(logfp == (FILE*) 0) { + syslog(LOG_CRIT, "%s - %m", logfile); + perror(logfile); + exit(1); + } + } +} + +static void send_authenticate(char* realm, int is_ssl) { + char header[10000]; + + (void) snprintf(header, sizeof(header), "WWW-Authenticate: Basic realm=\"%s\"", realm); + send_error(401, "Unauthorized", header, "Authorization required.", is_ssl); +} + +static void send_error(int s, char* title, char* extra_header, char* text, int is_ssl) { + add_headers(s, title, extra_header, "", "text/html; charset=%s", (off_t) -1, (time_t) -1); + send_error_body(s, title, text); + send_error_tail(); + send_response(is_ssl); + SSL_free(ssl); + exit(1); +} + +static void send_error_body(int s, char* title, char* text) { + char filename[1000]; + char buf[10000]; + int buflen; + + (void) snprintf(filename, sizeof(filename), "%s/err%d.html", ERR_DIR, s); + if(send_error_file(filename)) { + return; + } + buflen = snprintf(buf, sizeof(buf), "\nError %d - %s\n\n

Error %d

\n", s, title, s); + add_to_response(buf, buflen); + buflen = snprintf(buf, sizeof(buf), "%s\n", text); + add_to_response(buf, buflen); +} + +static int send_error_file(char* filename) { + FILE* fp; + char buf[1000]; + size_t r; + + fp = fopen(filename, "r"); + if(fp == (FILE*) 0) { + return 0; + } + for(;;) { + r = fread(buf, 1, sizeof(buf), fp); + if(r == 0) { + break; + } + add_to_response(buf, r); + } + (void) fclose(fp); + return 1; +} + +static void send_error_tail(void) { + char buf[500]; + int buflen; + + if(match("**MSIE**", useragent)) { + int n; + buflen = snprintf(buf, sizeof(buf), "\n"); + add_to_response(buf, buflen); + } + buflen = snprintf(buf, sizeof(buf), "
\n%s\n\n\n", SERVER_SOFTWARE); + add_to_response(buf, buflen); +} + +static void send_redirect(char* extra_header, char* hostname, char* new_location, int is_ssl) { + int extra_length = 0; + char extra_header_buf[5000]; + const char *sep = new_location[0] == '/' ? "" : "/"; + const char *proto = is_ssl == 1 ? "https://" : "http://"; + + extra_header = extra_header == NULL ? "" : extra_header; + if(strcmp(extra_header, "") == 0) { + sprintf(extra_header_buf, "Location: %s%s%s%s", proto, hostname, sep, new_location); + } else { + sprintf(extra_header_buf, "%s\r\nLocation: %s%s%s%s", extra_header, proto, hostname, sep, new_location); + } + add_headers(301, "Moved Permanently", extra_header_buf, "", "text/html; charset=%s", (off_t) -1, (time_t) -1); + send_error_body(301, "Moved Permanently", "Moved Permanently"); + send_error_tail(); + send_response(is_ssl); + SSL_free(ssl); + exit(1); +} + +static void send_response(is_ssl) { + (void) my_write(response, response_len, is_ssl); +} + +static void send_via_write(int fd, off_t size, int is_ssl) { + if(size <= SIZE_T_MAX) { + size_t size_size = (size_t) size; + void* ptr = mmap(0, size_size, PROT_READ, MAP_PRIVATE, fd, 0); + if(ptr != (void*) -1) { + (void) my_write(ptr, size_size, is_ssl); + (void) munmap(ptr, size_size); + } +#ifdef MADV_SEQUENTIAL + (void) madvise(ptr, size_size, MADV_SEQUENTIAL); +#endif + } else { + char buf[30000]; + ssize_t r, r2; + for(;;) { + r = read(fd, buf, sizeof(buf)); + if(r < 0 && (errno == EINTR || errno == EAGAIN)) { + sleep(1); + continue; + } + if(r <= 0) { + return; + } + for(;;) { + r2 = my_write(buf, r, is_ssl); + if(r2 < 0 && (errno == EINTR || errno == EAGAIN)) { + sleep(1); + continue; + } + if(r2 != r) { + return; + } + break; + } + } + } +} + +static void set_ndelay(int fd) { + int flags, newflags; + + flags = fcntl(fd, F_GETFL, 0); + if(flags != -1) { + newflags = flags | (int) O_NDELAY; + if(newflags != flags) { + (void) fcntl(fd, F_SETFL, newflags); + } + } +} + +static int sockaddr_check(usockaddr* usaP) { + switch (usaP->sa.sa_family) { + case AF_INET: + return 1; + case AF_INET6: + return 1; + default: + return 0; + } +} + +static size_t sockaddr_len(usockaddr* usaP) { + switch(usaP->sa.sa_family) { + case AF_INET: + return sizeof(struct sockaddr_in); + case AF_INET6: + return sizeof(struct sockaddr_in6); + default: + return 0; + } +} + +static void start_request(void) { + request_size = 0; + request_idx = 0; +} + +static void start_response(void) { + response_size = 0; +} + +static void strdecode(char* to, char* from) { + for(; *from != '\0'; ++to, ++from) { + if(from[0] == '%' && isxdigit(from[1]) && isxdigit(from[2])) { + *to = hexit(from[1]) * 16 + hexit(from[2]); + from += 2; + } else { + *to = *from; + } + } + *to = '\0'; +} + +static void strencode(char* to, size_t tosize, const char* from) { + int tolen; + + for(tolen = 0; *from != '\0' && tolen + 4 < tosize; ++from) { + if(isalnum(*from) || strchr("/_.-~", *from) != (char*) 0) { + *to = *from; + ++to; + ++tolen; + } else { + (void) sprintf(to, "%%%02x", (int) *from & 0xff); + to += 3; + tolen += 3; + } + } + *to = '\0'; +} + +static void usage(void) { + (void) fprintf(stderr, "Usage: %s [-C configfile] [-D] [-S use ssl, if no ssl port is specified all connections will be SSL] [-E certfile] [-SP ssl port] [-Y cipher] [-p port] [-d dir] [-dd data_dir] [-c cgipat] [-u user] [-h hostname] [-l logfile] [-i pidfile] [-T charset] [-L language] [-P P3P] [-M maxage] [-DRN default realm name] [-DRP default realm password file] [-DPF default page file] [-PNF Page to load when 404 Not Found error occurs] \n", argv0); + exit(1); +} + +static void value_required(char* name, char* value) { + if(value == (char*) 0) { + (void) fprintf(stderr, "%s: value required for %s option\n", argv0, name); + exit(1); + } +} diff --git a/kuhttpd.cnf b/kuhttpd.cnf new file mode 100644 index 0000000..9b405e3 --- /dev/null +++ b/kuhttpd.cnf @@ -0,0 +1,23 @@ +RANDFILE = kuhttpd.rnd + +[req] +default_bits = 1024 +encrypt_key = yes +distinguished_name = req_dn +x509_extensions = cert_type + +[req_dn] +countryName = Country Name (2 letter code) +countryName_default = EU +countryName_min = 2 +countryName_max = 2 +stateOrProvinceName = State or Province Name (full name) +stateOrProvinceName_default = European Union +localityName = European Union +organizationName = Organization Name (eg, company) +organizationName_default = Asio Software Technologies +commonName = Common Name (FQDN of your server) +commonName_default = Kagera Router Management Utility + +[cert_type] +nsCertType = server diff --git a/kuhttpd.h b/kuhttpd.h new file mode 100644 index 0000000..7a26bd9 --- /dev/null +++ b/kuhttpd.h @@ -0,0 +1,198 @@ +/** + * @PROJECT Kagera uHTTP Daemon + * @COPYRIGHT See COPYING in the top level directory + * @FILE kuhttpd.h + * @PURPOSE HTTP Server + * @DEVELOPERS Rafal Kupiec + * Jef Poskanzer + */ + +#ifndef __KUHTTPD_H +#define __KUHTTPD_H + +#define STDIN_FILENO 0 +#define STDOUT_FILENO 1 +#define STDERR_FILENO 2 +#define SIZE_T_MAX 2147483647L + +#define ERR_DIR "errors" +#define DEFAULT_HTTP_PORT 80 +#define DEFAULT_HTTPS_PORT 443 +#define DEFAULT_CERTFILE "kuhttpd.pem" +#define DEFAULT_CHARSET "UTF-8" +#define DEFAULT_LANGUAGE "english" +#define DEFAULT_CGI_PATTERN "cgi-bin/**|**.cgi|**.sh" +#define DEFAULT_USER "nobody" +#define CGI_NICE 10 +#define CGI_PATH "/usr/local/bin:/usr/ucb:/bin:/usr/bin:/usr/local/sbin:/sbin:/usr/sbin" +#define CGI_LD_LIBRARY_PATH "/usr/local/lib:/usr/lib:/lib" +#define AUTH_FILE ".htpasswd" +#define READ_TIMEOUT 60 +#define WRITE_TIMEOUT 300 + +#define METHOD_UNKNOWN 0 +#define METHOD_GET 1 +#define METHOD_HEAD 2 +#define METHOD_POST 3 + +#define SERVER_SOFTWARE "Kagera uHTTP Daemon 1.4" + +struct mime_entry { + char* ext; + size_t ext_len; + char* val; + size_t val_len; +}; + +typedef union { + struct sockaddr sa; + struct sockaddr_in sa_in; + struct sockaddr_in6 sa_in6; + struct sockaddr_storage sa_stor; +} usockaddr; + +static int b64_decode_table[256] = { + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63, + 52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1, + -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14, + 15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1, + -1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40, + 41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1, + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, + -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1 +}; + +static unsigned char allowDirectoryListing; +static char* argv0; +static char* data_dir; +static char* certfile; +static char* cgi_pattern; +static char* charset; +static char* language; +static char* cipher; +static char cwd[MAXPATHLEN]; +static int debug; +static char* defaultPageFile; +static char* defaultRealmName; +static char* defaultRealmPasswordFile; +static char* dir; +static int do_ssl; +static int got_hup; +static char* hostname; +static char hostname_buf[500]; +static int listen4_fd, listen6_fd; +static int listen4s_fd, listen6s_fd; +static char* local_pattern; +static char* logfile; +static FILE* logfp; +static int max_age; +static int no_empty_referers; +static char* p3p; +static char* pageNotFoundFile; +static char* pidfile; +static unsigned short port; +static SSL_CTX* ssl_ctx; +static unsigned short sslPort; +static char* url_pattern; +static char* user; + +static off_t bytes; +static usockaddr client_addr; +static int conn_fd; +static char* file; +static int method; +static char* path; +static char* pathinfo; +static char* protocol; +static char* query; +static char* request; +static size_t request_size, request_len, request_idx; +struct stat sb; +static SSL* ssl; +static int status; + +static char* authorization; +static size_t content_length; +static char* content_type; +static char* cookie; +static char* host; +static time_t if_modified_since; +static char* referer; +static char* remoteuser; +static char* response; +static size_t response_size, response_len; +static char* useragent; + +static void add_headers(int s, char* title, char* extra_header, char* me, char* mt, off_t b, time_t mod); +static void add_to_buf(char** bufP, size_t* bufsizeP, size_t* buflenP, char* str, size_t len); +static void add_to_request(char* str, size_t len); +static void add_to_response(char* str, size_t len); +static void auth_check(char* dirname, int is_ssl); +static int b64_decode(const char* str, unsigned char* space, int size); +static char* build_env(char* fmt, char* arg); +static void cgi_interpose_input(int wfd, int is_ssl); +static void cgi_interpose_output(int rfd, int parse_headers, int is_ssl); +static void check_referer(int is_ssl); +static void clear_ndelay(int fd); +extern char* crypt(const char* key, const char* setting); +static void de_dotdot(char* file); +static void do_cgi(int is_ssl, unsigned short port); +static void do_dir(int is_ssl); +static void do_file(int is_ssl, unsigned short conn_port); +static void* e_malloc(size_t size); +static void* e_realloc(void* optr, size_t size); +static char* e_strdup(char* ostr); +static const char* figure_mime(char* name, char* me, size_t me_size); +static char* file_details(const char* dir, const char* name); +static char* get_method_str(int m); +static int get_pathinfo(void); +static char* get_request_line(void); +static void handle_read_timeout(int sig, int is_ssl); +static void handle_read_timeout_sig(int sig); +static void handle_request(int is_ssl, unsigned short conn_port); +static void handle_sigchld(int sig); +static void handle_sighup(int sig); +static void handle_sigterm(int sig); +static void handle_write_timeout(int sig); +static int hexit(char c); +static void init_mime(void); +static int initialize_listen_socket(usockaddr* usaP); +static void lookup_hostname(usockaddr* usa4P, usockaddr* usa4sP, size_t sa4_len, int* gotv4P, int* gotv4sP, usockaddr* usa6P, usockaddr* usa6sP, size_t sa6_len, int* gotv6P, int* gotv6sP); +static char** make_argp(void); +static char** make_envp(int is_sl, unsigned short port); +static void make_log_entry(void); +static char* ntoa(usockaddr* usaP); +static ssize_t my_read(char* buf, size_t size, int is_ssl); +static ssize_t my_write(char* buf, size_t size, int is_ssl); +static void no_value_required(char* name, char* value); +static void post_post_garbage_hack(int is_ssl); +static void read_config(char* filename); +static int really_check_referer(void); +static void reopen_logfile(void); +static void send_authenticate(char* realm, int is_ssl); +static void send_error(int s, char* title, char* extra_header, char* text, int is_ssl); +static void send_error_body(int s, char* title, char* text); +static int send_error_file(char* filename); +static void send_error_tail(void); +static void send_redirect(char* extra_header, char* hostname, char* new_location, int is_ssl); +static void send_response(int is_ssl); +static void send_via_write(int fd, off_t size, int is_ssl); +static void set_ndelay(int fd); +static int sockaddr_check(usockaddr* usaP); +static size_t sockaddr_len(usockaddr* usaP); +static void start_request(void); +static void start_response(void); +static void strdecode(char* to, char* from); +static void strencode(char* to, size_t tosize, const char* from); +static void usage(void); +static void value_required(char* name, char* value); + +#endif diff --git a/match.c b/match.c new file mode 100644 index 0000000..e14ff41 --- /dev/null +++ b/match.c @@ -0,0 +1,60 @@ +/** + * @PROJECT Kagera uHTTP Daemon + * @COPYRIGHT See COPYING in the top level directory + * @FILE match.c + * @PURPOSE Simple shell-style filename matcher + * @DEVELOPERS Rafal Kupiec + * Jef Poskanzer + */ + +#include + +#include "match.h" + +int match(const char* pattern, const char* string) { + const char* or; + + for(;;) { + or = strchr( pattern, '|' ); + if(or == (char*) 0) { + return match_one(pattern, strlen(pattern), string); + } + if(match_one( pattern, or - pattern, string)) { + return 1; + } + pattern = or + 1; + } +} + +static int match_one(const char* pattern, int patternlen, const char* string) { + const char* p; + for(p = pattern; p - pattern < patternlen; ++p, ++string) { + if(*p == '?' && *string != '\0') { + continue; + } + if(*p == '*') { + int i, pl; + ++p; + if(*p == '*') { + ++p; + i = strlen(string); + } else { + i = strcspn(string, "/"); + } + pl = patternlen - (p - pattern); + for(; i >= 0; --i) { + if(match_one(p, pl, &(string[i]))) { + return 1; + } + } + return 0; + } + if(*p != *string) { + return 0; + } + } + if(*string == '\0') { + return 1; + } + return 0; +} diff --git a/match.h b/match.h new file mode 100644 index 0000000..7fe8eb7 --- /dev/null +++ b/match.h @@ -0,0 +1,16 @@ +/** + * @PROJECT Kagera uHTTP Daemon + * @COPYRIGHT See COPYING in the top level directory + * @FILE match.h + * @PURPOSE Simple shell-style filename matcher + * @DEVELOPERS Rafal Kupiec + * Jef Poskanzer + */ + +#ifndef __MATCH_H +#define __MATCH_H + +extern int match(const char* pattern, const char* string); +static int match_one(const char* pattern, int patternlen, const char* string); + +#endif diff --git a/mime_enc.h b/mime_enc.h new file mode 100644 index 0000000..26d608b --- /dev/null +++ b/mime_enc.h @@ -0,0 +1,20 @@ +/** + * @PROJECT Kagera uHTTP Daemon + * @COPYRIGHT See COPYING in the top level directory + * @FILE mime_enc.h + * @PURPOSE MIME encodings list + * @DEVELOPERS Rafal Kupiec + */ + +#ifndef __MIME_ENC_H +#define __MIME_ENC_H + +static struct mime_entry enc_tab[] = { + { "Z", 0, "compress", 0 }, + { "gz", 0, "gzip", 0 }, + { "uu", 0, "x-uuencode", 0 }, +}; + +static const int n_enc_tab = sizeof(enc_tab) / sizeof(*enc_tab); + +#endif diff --git a/mime_typ.h b/mime_typ.h new file mode 100644 index 0000000..4ea653c --- /dev/null +++ b/mime_typ.h @@ -0,0 +1,207 @@ +/** + * @PROJECT Kagera uHTTP Daemon + * @COPYRIGHT See COPYING in the top level directory + * @FILE mime_typ.h + * @PURPOSE MIME types list + * @DEVELOPERS Rafal Kupiec + */ + +#ifndef __MIME_TYP_H +#define __MIME_TYP_H + +static struct mime_entry typ_tab[] = { + { "a", 0, "application/octet-stream", 0 }, + { "aab", 0, "application/x-authorware-bin", 0 }, + { "aam", 0, "application/x-authorware-map", 0 }, + { "aas", 0, "application/x-authorware-seg", 0 }, + { "ai", 0, "application/postscript", 0 }, + { "aif", 0, "audio/x-aiff", 0 }, + { "aifc", 0, "audio/x-aiff", 0 }, + { "aiff", 0, "audio/x-aiff", 0 }, + { "asc", 0, "text/plain", 0 }, + { "asf", 0, "video/x-ms-asf", 0 }, + { "asx", 0, "video/x-ms-asf", 0 }, + { "au", 0, "audio/basic", 0 }, + { "avi", 0, "video/x-msvideo", 0 }, + { "bcpio", 0, "application/x-bcpio", 0 }, + { "bin", 0, "application/octet-stream", 0 }, + { "bmp", 0, "image/bmp", 0 }, + { "cdf", 0, "application/x-netcdf", 0 }, + { "class", 0, "application/x-java-vm", 0 }, + { "cpio", 0, "application/x-cpio", 0 }, + { "cpt", 0, "application/mac-compactpro", 0 }, + { "crl", 0, "application/x-pkcs7-crl", 0 }, + { "crt", 0, "application/x-x509-ca-cert", 0 }, + { "csh", 0, "application/x-csh", 0 }, + { "css", 0, "text/css", 0 }, + { "dcr", 0, "application/x-director", 0 }, + { "dir", 0, "application/x-director", 0 }, + { "djv", 0, "image/vnd.djvu", 0 }, + { "djvu", 0, "image/vnd.djvu", 0 }, + { "dll", 0, "application/octet-stream", 0 }, + { "dms", 0, "application/octet-stream", 0 }, + { "doc", 0, "application/msword", 0 }, + { "dtd", 0, "text/xml", 0 }, + { "dump", 0, "application/octet-stream", 0 }, + { "dvi", 0, "application/x-dvi", 0 }, + { "dxr", 0, "application/x-director", 0 }, + { "eps", 0, "application/postscript", 0 }, + { "etx", 0, "text/x-setext", 0 }, + { "exe", 0, "application/octet-stream", 0 }, + { "ez", 0, "application/andrew-inset", 0 }, + { "fgd", 0, "application/x-director", 0 }, + { "fh", 0, "image/x-freehand", 0 }, + { "fh4", 0, "image/x-freehand", 0 }, + { "fh5", 0, "image/x-freehand", 0 }, + { "fh7", 0, "image/x-freehand", 0 }, + { "fhc", 0, "image/x-freehand", 0 }, + { "gif", 0, "image/gif", 0 }, + { "gtar", 0, "application/x-gtar", 0 }, + { "hdf", 0, "application/x-hdf", 0 }, + { "hqx", 0, "application/mac-binhex40", 0 }, + { "htm", 0, "text/html; charset=%s", 0 }, + { "html", 0, "text/html; charset=%s", 0 }, + { "ice", 0, "x-conference/x-cooltalk", 0 }, + { "ief", 0, "image/ief", 0 }, + { "iges", 0, "model/iges", 0 }, + { "igs", 0, "model/iges", 0 }, + { "iv", 0, "application/x-inventor", 0 }, + { "jar", 0, "application/x-java-archive", 0 }, + { "jfif", 0, "image/jpeg", 0 }, + { "jpe", 0, "image/jpeg", 0 }, + { "jpeg", 0, "image/jpeg", 0 }, + { "jpg", 0, "image/jpeg", 0 }, + { "js", 0, "application/x-javascript", 0 }, + { "kar", 0, "audio/midi", 0 }, + { "latex", 0, "application/x-latex", 0 }, + { "lha", 0, "application/octet-stream", 0 }, + { "lzh", 0, "application/octet-stream", 0 }, + { "m3u", 0, "audio/x-mpegurl", 0 }, + { "man", 0, "application/x-troff-man", 0 }, + { "mathml", 0, "application/mathml+xml", 0 }, + { "me", 0, "application/x-troff-me", 0 }, + { "mesh", 0, "model/mesh", 0 }, + { "mid", 0, "audio/midi", 0 }, + { "midi", 0, "audio/midi", 0 }, + { "mif", 0, "application/vnd.mif", 0 }, + { "mime", 0, "message/rfc822", 0 }, + { "mml", 0, "application/mathml+xml", 0 }, + { "mov", 0, "video/quicktime", 0 }, + { "movie", 0, "video/x-sgi-movie", 0 }, + { "mp2", 0, "audio/mpeg", 0 }, + { "mp3", 0, "audio/mpeg", 0 }, + { "mp4", 0, "video/mp4", 0 }, + { "mpe", 0, "video/mpeg", 0 }, + { "mpeg", 0, "video/mpeg", 0 }, + { "mpg", 0, "video/mpeg", 0 }, + { "mpga", 0, "audio/mpeg", 0 }, + { "ms", 0, "application/x-troff-ms", 0 }, + { "msh", 0, "model/mesh", 0 }, + { "mv", 0, "video/x-sgi-movie", 0 }, + { "mxu", 0, "video/vnd.mpegurl", 0 }, + { "nc", 0, "application/x-netcdf", 0 }, + { "o", 0, "application/octet-stream", 0 }, + { "oda", 0, "application/oda", 0 }, + { "ogg", 0, "application/x-ogg", 0 }, + { "pac", 0, "application/x-ns-proxy-autoconfig", 0 }, + { "pbm", 0, "image/x-portable-bitmap", 0 }, + { "pdb", 0, "chemical/x-pdb", 0 }, + { "pdf", 0, "application/pdf", 0 }, + { "pgm", 0, "image/x-portable-graymap", 0 }, + { "pgn", 0, "application/x-chess-pgn", 0 }, + { "png", 0, "image/png", 0 }, + { "pnm", 0, "image/x-portable-anymap", 0 }, + { "ppm", 0, "image/x-portable-pixmap", 0 }, + { "ppt", 0, "application/vnd.ms-powerpoint", 0 }, + { "ps", 0, "application/postscript", 0 }, + { "qt", 0, "video/quicktime", 0 }, + { "ra", 0, "audio/x-realaudio", 0 }, + { "ram", 0, "audio/x-pn-realaudio", 0 }, + { "ras", 0, "image/x-cmu-raster", 0 }, + { "rdf", 0, "application/rdf+xml", 0 }, + { "rgb", 0, "image/x-rgb", 0 }, + { "rm", 0, "audio/x-pn-realaudio", 0 }, + { "roff", 0, "application/x-troff", 0 }, + { "rpm", 0, "audio/x-pn-realaudio-plugin", 0 }, + { "rss", 0, "application/rss+xml", 0 }, + { "rtf", 0, "text/rtf", 0 }, + { "rtx", 0, "text/richtext", 0 }, + { "sgm", 0, "text/sgml", 0 }, + { "sgml", 0, "text/sgml", 0 }, + { "sh", 0, "application/x-sh", 0 }, + { "shar", 0, "application/x-shar", 0 }, + { "silo", 0, "model/mesh", 0 }, + { "sit", 0, "application/x-stuffit", 0 }, + { "skd", 0, "application/x-koan", 0 }, + { "skm", 0, "application/x-koan", 0 }, + { "skp", 0, "application/x-koan", 0 }, + { "skt", 0, "application/x-koan", 0 }, + { "smi", 0, "application/smil", 0 }, + { "smil", 0, "application/smil", 0 }, + { "snd", 0, "audio/basic", 0 }, + { "so", 0, "application/octet-stream", 0 }, + { "spl", 0, "application/x-futuresplash", 0 }, + { "src", 0, "application/x-wais-source", 0 }, + { "stc", 0, "application/vnd.sun.xml.calc.template", 0 }, + { "std", 0, "application/vnd.sun.xml.draw.template", 0 }, + { "sti", 0, "application/vnd.sun.xml.impress.template", 0 }, + { "stw", 0, "application/vnd.sun.xml.writer.template", 0 }, + { "sv4cpio", 0, "application/x-sv4cpio", 0 }, + { "sv4crc", 0, "application/x-sv4crc", 0 }, + { "svg", 0, "image/svg+xml", 0 }, + { "svgz", 0, "image/svg+xml", 0 }, + { "swf", 0, "application/x-shockwave-flash", 0 }, + { "sxc", 0, "application/vnd.sun.xml.calc", 0 }, + { "sxd", 0, "application/vnd.sun.xml.draw", 0 }, + { "sxg", 0, "application/vnd.sun.xml.writer.global", 0 }, + { "sxi", 0, "application/vnd.sun.xml.impress", 0 }, + { "sxm", 0, "application/vnd.sun.xml.math", 0 }, + { "sxw", 0, "application/vnd.sun.xml.writer", 0 }, + { "t", 0, "application/x-troff", 0 }, + { "tar", 0, "application/x-tar", 0 }, + { "tcl", 0, "application/x-tcl", 0 }, + { "tex", 0, "application/x-tex", 0 }, + { "texi", 0, "application/x-texinfo", 0 }, + { "texinfo", 0, "application/x-texinfo", 0 }, + { "tif", 0, "image/tiff", 0 }, + { "tiff", 0, "image/tiff", 0 }, + { "tr", 0, "application/x-troff", 0 }, + { "tsp", 0, "application/dsptype", 0 }, + { "tsv", 0, "text/tab-separated-values", 0 }, + { "txt", 0, "text/plain; charset=%s", 0 }, + { "ustar", 0, "application/x-ustar", 0 }, + { "vcd", 0, "application/x-cdlink", 0 }, + { "vrml", 0, "model/vrml", 0 }, + { "vx", 0, "video/x-rad-screenplay", 0 }, + { "wav", 0, "audio/x-wav", 0 }, + { "wax", 0, "audio/x-ms-wax", 0 }, + { "wbmp", 0, "image/vnd.wap.wbmp", 0 }, + { "wbxml", 0, "application/vnd.wap.wbxml", 0 }, + { "wm", 0, "video/x-ms-wm", 0 }, + { "wma", 0, "audio/x-ms-wma", 0 }, + { "wmd", 0, "application/x-ms-wmd", 0 }, + { "wml", 0, "text/vnd.wap.wml", 0 }, + { "wmlc", 0, "application/vnd.wap.wmlc", 0 }, + { "wmls", 0, "text/vnd.wap.wmlscript", 0 }, + { "wmlsc", 0, "application/vnd.wap.wmlscriptc", 0 }, + { "wmv", 0, "video/x-ms-wmv", 0 }, + { "wmx", 0, "video/x-ms-wmx", 0 }, + { "wmz", 0, "application/x-ms-wmz", 0 }, + { "wrl", 0, "model/vrml", 0 }, + { "wsrc", 0, "application/x-wais-source", 0 }, + { "wvx", 0, "video/x-ms-wvx", 0 }, + { "xbm", 0, "image/x-xbitmap", 0 }, + { "xht", 0, "application/xhtml+xml", 0 }, + { "xhtml", 0, "application/xhtml+xml", 0 }, + { "xls", 0, "application/vnd.ms-excel", 0 }, + { "xml", 0, "text/xml", 0 }, + { "xpm", 0, "image/x-xpixmap", 0 }, + { "xsl", 0, "text/xml", 0 }, + { "xwd", 0, "image/x-xwindowdump", 0 }, + { "xyz", 0, "chemical/x-xyz", 0 }, + { "zip", 0, "application/zip", 0 }, +}; + +static const int n_typ_tab = sizeof(typ_tab) / sizeof(*typ_tab); + +#endif