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author | Steven Young <sdyoung@users.sourceforge.net> | 2000-02-16 17:32:49 +0000 |
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committer | Steven Young <sdyoung@users.sourceforge.net> | 2000-02-16 17:32:49 +0000 |
commit | 37e63909c09359ddd5baf7a237387ee5f7219c2d (patch) | |
tree | 118da48d4b5ed947bc4cb9c004d7e10a976be57a /src/uri.c | |
parent | a094587fb0e92c5638808d7bff91ef802e200112 (diff) | |
download | tinyproxy-37e63909c09359ddd5baf7a237387ee5f7219c2d.tar.gz tinyproxy-37e63909c09359ddd5baf7a237387ee5f7219c2d.zip |
This commit was generated by cvs2svn to compensate for changes in r2,
which included commits to RCS files with non-trunk default branches.
Diffstat (limited to '')
-rw-r--r-- | src/uri.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/src/uri.c b/src/uri.c new file mode 100644 index 0000000..8a2b744 --- /dev/null +++ b/src/uri.c @@ -0,0 +1,124 @@ +/* $Id: uri.c,v 1.1.1.1 2000-02-16 17:32:23 sdyoung Exp $ + * + * This borrows the REGEX from RFC2396 to split a URI string into the five + * primary components. The components are: + * scheme the uri method (like "http", "ftp", "gopher") + * authority the domain and optional ":" port + * path path to the document/resource + * query an optional query (separated with a "?") + * fragment an optional fragement (separated with a "#") + * + * Copyright (C) 1999 Robert James Kaes (rjkaes@flarenet.com) + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#ifdef HAVE_CONFIG_H +#include <defines.h> +#endif + +#include <string.h> +#include <stdlib.h> +#include <assert.h> + +#include "uri.h" +#include "utils.h" +#include "log.h" +#include "regexp.h" + +#define NMATCH 10 + +#define URIPATTERN "^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\\?([^#]*))?(#(.*))?" + +#define SCHEME 2 +#define AUTHORITY 4 +#define PATH 5 +#define QUERY_MARK 6 +#define QUERY 7 +#define FRAGMENT_MARK 8 +#define FRAGMENT 9 + +static int extract_uri(regmatch_t pmatch[], const char *buffer, char **section, + int substring) +{ + int len = pmatch[substring].rm_eo - pmatch[substring].rm_so; + if ((*section = xmalloc(len + 1)) == NULL) + return -1; + + memset(*section, '\0', len + 1); + memcpy(*section, buffer + pmatch[substring].rm_so, len); + + return 0; +} + +void free_uri(URI * uri) +{ + safefree(uri->scheme); + safefree(uri->authority); + safefree(uri->path); + safefree(uri->query); + safefree(uri->fragment); + safefree(uri); +} + +URI *explode_uri(const char *string) +{ + URI *uri; + regmatch_t pmatch[NMATCH]; + regex_t preg; + + if (!(uri = xmalloc(sizeof(URI)))) + return NULL; + memset(uri, 0, sizeof(URI)); + + if (regcomp(&preg, URIPATTERN, REG_EXTENDED) != 0) { + log("ERROR explode_uri: regcomp"); + goto ERROR_EXIT; + } + + if (regexec(&preg, string, NMATCH, pmatch, 0) != 0) { + log("ERROR explode_uri: regexec"); + goto ERROR_EXIT; + } + + regfree(&preg); + + if (pmatch[SCHEME].rm_so != -1) { + if (extract_uri(pmatch, string, &uri->scheme, SCHEME) < 0) + goto ERROR_EXIT; + } + + if (pmatch[AUTHORITY].rm_so != -1) { + if (extract_uri(pmatch, string, &uri->authority, AUTHORITY) < + 0) goto ERROR_EXIT; + } + + if (pmatch[PATH].rm_so != -1) { + if (extract_uri(pmatch, string, &uri->path, PATH) < 0) + goto ERROR_EXIT; + } + + if (pmatch[QUERY_MARK].rm_so != -1) { + if (extract_uri(pmatch, string, &uri->query, QUERY) < 0) + goto ERROR_EXIT; + } + + if (pmatch[FRAGMENT_MARK].rm_so != -1) { + if (extract_uri(pmatch, string, &uri->fragment, FRAGMENT) < 0) + goto ERROR_EXIT; + } + + return uri; + + ERROR_EXIT: + free_uri(uri); + return NULL; +} |