=================================================================== RCS file: /cvs/mandoc/cgi.c,v retrieving revision 1.159 retrieving revision 1.176 diff -u -p -r1.159 -r1.176 --- mandoc/cgi.c 2018/10/01 08:06:53 1.159 +++ mandoc/cgi.c 2021/11/05 17:04:10 1.176 @@ -1,7 +1,7 @@ -/* $Id: cgi.c,v 1.159 2018/10/01 08:06:53 schwarze Exp $ */ +/* $Id: cgi.c,v 1.176 2021/11/05 17:04:10 schwarze Exp $ */ /* + * Copyright (c) 2014-2019, 2021 Ingo Schwarze * Copyright (c) 2011, 2012 Kristaps Dzonsons - * Copyright (c) 2014, 2015, 2016, 2017 Ingo Schwarze * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -14,6 +14,8 @@ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Implementation of the man.cgi(8) program. */ #include "config.h" @@ -38,6 +40,7 @@ #include "roff.h" #include "mdoc.h" #include "man.h" +#include "mandoc_parse.h" #include "main.h" #include "manconf.h" #include "mansearch.h" @@ -69,14 +72,15 @@ enum focus { static void html_print(const char *); static void html_putchar(char); static int http_decode(char *); -static void http_encode(const char *p); +static void http_encode(const char *); static void parse_manpath_conf(struct req *); -static void parse_path_info(struct req *req, const char *path); +static void parse_path_info(struct req *, const char *); static void parse_query_string(struct req *, const char *); static void pg_error_badrequest(const char *); static void pg_error_internal(void); static void pg_index(const struct req *); -static void pg_noresult(const struct req *, const char *); +static void pg_noresult(const struct req *, int, const char *, + const char *); static void pg_redirect(const struct req *, const char *); static void pg_search(const struct req *); static void pg_searchres(const struct req *, @@ -118,16 +122,18 @@ static const char *const sec_names[] = { static const int sec_MAX = sizeof(sec_names) / sizeof(char *); static const char *const arch_names[] = { - "amd64", "alpha", "armv7", "arm64", - "hppa", "i386", "landisk", - "loongson", "luna88k", "macppc", "mips64", - "octeon", "sgi", "socppc", "sparc64", + "amd64", "alpha", "armv7", "arm64", + "hppa", "i386", "landisk", "loongson", + "luna88k", "macppc", "mips64", "octeon", + "powerpc64", "riscv64", "sparc64", + "amiga", "arc", "armish", "arm32", "atari", "aviion", "beagle", "cats", "hppa64", "hp300", "ia64", "mac68k", "mvme68k", "mvme88k", "mvmeppc", "palm", "pc532", "pegasos", - "pmax", "powerpc", "solbourne", "sparc", + "pmax", "powerpc", "sgi", "socppc", + "solbourne", "sparc", "sun3", "vax", "wgrisc", "x68k", "zaurus" }; @@ -323,7 +329,7 @@ http_encode(const char *p) for (; *p != '\0'; p++) { if (isalnum((unsigned char)*p) == 0 && strchr("-._~", *p) == NULL) - printf("%%%02.2X", (unsigned char)*p); + printf("%%%2.2X", (unsigned char)*p); else putchar(*p); } @@ -338,6 +344,8 @@ resp_begin_http(int code, const char *msg) printf("Content-Type: text/html; charset=utf-8\r\n" "Cache-Control: no-cache\r\n" + "Content-Security-Policy: default-src 'none'; " + "style-src 'self' 'unsafe-inline'\r\n" "Pragma: no-cache\r\n" "\r\n"); @@ -362,7 +370,8 @@ resp_copy(const char *filename) static void resp_begin_html(int code, const char *msg, const char *file) { - char *cp; + const char *name, *sec, *cp; + int namesz, secsz; resp_begin_http(code, msg); @@ -377,12 +386,27 @@ resp_begin_html(int code, const char *msg, const char " ", CSS_DIR); if (file != NULL) { - if ((cp = strrchr(file, '/')) != NULL) - file = cp + 1; - if ((cp = strrchr(file, '.')) != NULL) { - printf("%.*s(%s) - ", (int)(cp - file), file, cp + 1); - } else - printf("%s - ", file); + cp = strrchr(file, '/'); + name = cp == NULL ? file : cp + 1; + cp = strrchr(name, '.'); + namesz = cp == NULL ? strlen(name) : cp - name; + sec = NULL; + if (cp != NULL && cp[1] != '0') { + sec = cp + 1; + secsz = strlen(sec); + } else if (name - file > 1) { + for (cp = name - 2; cp >= file; cp--) { + if (*cp < '1' || *cp > '9') + continue; + sec = cp; + secsz = name - cp - 1; + break; + } + } + printf("%.*s", namesz, name); + if (sec != NULL) + printf("(%.*s)", secsz, sec); + fputs(" - ", stdout); } printf("%s\n" "\n" @@ -407,7 +431,8 @@ resp_searchform(const struct req *req, enum focus focu { int i; - printf("
\n" + printf("\n" "
\n" " Manual Page Search Parameters\n", scriptname); @@ -545,12 +570,13 @@ pg_index(const struct req *req) } static void -pg_noresult(const struct req *req, const char *msg) +pg_noresult(const struct req *req, int code, const char *http_msg, + const char *user_msg) { - resp_begin_html(200, NULL, NULL); + resp_begin_html(code, http_msg, NULL); resp_searchform(req, FOCUS_QUERY); puts("

"); - puts(msg); + puts(user_msg); puts("

"); resp_end_html(); } @@ -848,21 +874,22 @@ resp_format(const struct req *req, const char *file) { struct manoutput conf; struct mparse *mp; - struct roff_man *man; + struct roff_meta *meta; void *vp; int fd; int usepath; - if (-1 == (fd = open(file, O_RDONLY, 0))) { + if (-1 == (fd = open(file, O_RDONLY))) { puts("

You specified an invalid manual file.

"); return; } mchars_alloc(); - mp = mparse_alloc(MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1, - MANDOCERR_MAX, NULL, MANDOC_OS_OTHER, req->q.manpath); + mp = mparse_alloc(MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1 | + MPARSE_VALIDATE, MANDOC_OS_OTHER, req->q.manpath); mparse_readfd(mp, fd, file); close(fd); + meta = mparse_result(mp); memset(&conf, 0, sizeof(conf)); conf.fragment = 1; @@ -872,25 +899,12 @@ resp_format(const struct req *req, const char *file) scriptname, *scriptname == '\0' ? "" : "/", usepath ? req->q.manpath : "", usepath ? "/" : ""); - mparse_result(mp, &man, NULL); - if (man == NULL) { - warnx("fatal mandoc error: %s/%s", req->q.manpath, file); - pg_error_internal(); - mparse_free(mp); - mchars_free(); - return; - } - vp = html_alloc(&conf); + if (meta->macroset == MACROSET_MDOC) + html_mdoc(vp, meta); + else + html_man(vp, meta); - if (man->macroset == MACROSET_MDOC) { - mdoc_validate(man); - html_mdoc(vp, man); - } else { - man_validate(man); - html_man(vp, man); - } - html_free(vp); mparse_free(mp); mchars_free(); @@ -1027,9 +1041,10 @@ pg_search(const struct req *req) if (req->isquery && req->q.equal && argc == 1) pg_redirect(req, argv[0]); else if (mansearch(&search, &paths, argc, argv, &res, &ressz) == 0) - pg_noresult(req, "You entered an invalid query."); + pg_noresult(req, 400, "Bad Request", + "You entered an invalid query."); else if (ressz == 0) - pg_noresult(req, "No results found."); + pg_noresult(req, 404, "Not Found", "No results found."); else pg_searchres(req, res, ressz); @@ -1143,80 +1158,74 @@ main(void) } /* - * If PATH_INFO is not a file name, translate it to a query. + * Translate PATH_INFO to a query. */ static void parse_path_info(struct req *req, const char *path) { - char *dir[4]; - int i; + const char *name, *sec, *end; req->isquery = 0; req->q.equal = 1; - req->q.manpath = mandoc_strdup(path); + req->q.manpath = NULL; req->q.arch = NULL; /* Mandatory manual page name. */ - if ((req->q.query = strrchr(req->q.manpath, '/')) == NULL) { - req->q.query = req->q.manpath; - req->q.manpath = NULL; - } else - *req->q.query++ = '\0'; + if ((name = strrchr(path, '/')) == NULL) + name = path; + else + name++; /* Optional trailing section. */ - if ((req->q.sec = strrchr(req->q.query, '.')) != NULL) { - if(isdigit((unsigned char)req->q.sec[1])) { - *req->q.sec++ = '\0'; - req->q.sec = mandoc_strdup(req->q.sec); - } else - req->q.sec = NULL; + sec = strrchr(name, '.'); + if (sec != NULL && isdigit((unsigned char)*++sec)) { + req->q.query = mandoc_strndup(name, sec - name - 1); + req->q.sec = mandoc_strdup(sec); + } else { + req->q.query = mandoc_strdup(name); + req->q.sec = NULL; } /* Handle the case of name[.section] only. */ - if (req->q.manpath == NULL) + if (name == path) return; - req->q.query = mandoc_strdup(req->q.query); - /* Split directory components. */ - dir[i = 0] = req->q.manpath; - while ((dir[i + 1] = strchr(dir[i], '/')) != NULL) { - if (++i == 3) { - pg_error_badrequest( - "You specified too many directory components."); - exit(EXIT_FAILURE); - } - *dir[i]++ = '\0'; - } - /* Optional manpath. */ - if ((i = validate_manpath(req, req->q.manpath)) == 0) + end = strchr(path, '/'); + req->q.manpath = mandoc_strndup(path, end - path); + if (validate_manpath(req, req->q.manpath)) { + path = end + 1; + if (name == path) + return; + } else { + free(req->q.manpath); req->q.manpath = NULL; - else if (dir[1] == NULL) - return; + } /* Optional section. */ - if (strncmp(dir[i], "man", 3) == 0) { + if (strncmp(path, "man", 3) == 0 || strncmp(path, "cat", 3) == 0) { + path += 3; + end = strchr(path, '/'); free(req->q.sec); - req->q.sec = mandoc_strdup(dir[i++] + 3); + req->q.sec = mandoc_strndup(path, end - path); + path = end + 1; + if (name == path) + return; } - if (dir[i] == NULL) { - if (req->q.manpath == NULL) - free(dir[0]); - return; + + /* Optional architecture. */ + end = strchr(path, '/'); + if (end + 1 != name) { + pg_error_badrequest( + "You specified too many directory components."); + exit(EXIT_FAILURE); } - if (dir[i + 1] != NULL) { + req->q.arch = mandoc_strndup(path, end - path); + if (validate_arch(req->q.arch) == 0) { pg_error_badrequest( "You specified an invalid directory component."); exit(EXIT_FAILURE); } - - /* Optional architecture. */ - if (i) { - req->q.arch = mandoc_strdup(dir[i]); - if (req->q.manpath == NULL) - free(dir[0]); - } else - req->q.arch = dir[0]; } /*