1039 lines
24 KiB
C
1039 lines
24 KiB
C
/*
|
||
* Copyright (C) 2023-2024 Adrien Gesta-Fline
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*
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* This file is part of libAAF.
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*
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* This program is free software; you can redistribute it and/or modify
|
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* it under the terms of the GNU General Public License as published by
|
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <assert.h>
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#include <ctype.h>
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#include <limits.h>
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#include <stdarg.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef _MSC_VER
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#include <BaseTsd.h>
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typedef SSIZE_T ssize_t;
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#endif
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#include "aaf/URIParser.h"
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#include "aaf/utils.h"
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#define debug(...) \
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AAF_LOG (log, NULL, LOG_SRC_ID_AAF_IFACE, VERB_DEBUG, __VA_ARGS__)
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#define warning(...) \
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AAF_LOG (log, NULL, LOG_SRC_ID_AAF_IFACE, VERB_WARNING, __VA_ARGS__)
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#define error(...) \
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AAF_LOG (log, NULL, LOG_SRC_ID_AAF_IFACE, VERB_ERROR, __VA_ARGS__)
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#define IS_LOWALPHA(c) \
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((c >= 'a') && (c <= 'z'))
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#define IS_UPALPHA(c) \
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((c >= 'A') && (c <= 'Z'))
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||
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#define IS_ALPHA(c) \
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(IS_LOWALPHA (c) || IS_UPALPHA (c))
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||
|
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#define IS_DIGIT(c) \
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(c >= '0' && c <= '9')
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||
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#define IS_ALPHANUM(c) \
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(IS_ALPHA (c) || IS_DIGIT (c))
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#define IS_HEX(c) \
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(IS_DIGIT (c) || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F'))
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||
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/*
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* RFC 2396
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* https://datatracker.ietf.org/doc/html/rfc2396#section-2.3
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||
*/
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#define IS_MARK(c) \
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(c == '-' || c == '_' || c == '.' || c == '!' || c == '~' || c == '*' || c == '\'' || c == '(' || c == ')')
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#define IS_UNRESERVED(c) \
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(IS_ALPHANUM (c) || IS_MARK (c))
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#define IS_ENCODED(p) \
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((*p == '%') && IS_HEX (*(p + 1)) && IS_HEX (*(p + 2)))
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#define SCHEME_SAFE_CHAR(c) \
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(IS_ALPHANUM (c) || c == '+' || c == '.' || c == '-')
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#define USERINFO_SAFE_CHAR(p) \
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(IS_ALPHANUM (*p) || IS_ENCODED (p) || *p == ';' || *p == ':' || *p == '&' || *p == '=' || *p == '+' || *p == '$' || *p == ',')
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#define WINDOWS_DRIVE_LETTER(p) \
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(IS_ALPHA (*p) && (*(p + 1) == ':' || *(p + 1) == '|') && *(p + 2) == '/')
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#define SCHEME_ALLOW_QUERY(uri) \
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(uri->scheme_t != URI_SCHEME_T_FILE && \
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!(uri->opts & URI_OPT_IGNORE_QUERY))
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||
|
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#define SCHEME_ALLOW_FRAGMENT(uri) \
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(uri->scheme_t != URI_SCHEME_T_FILE && \
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!(uri->opts & URI_OPT_IGNORE_FRAGMENT))
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#define URI_SET_STR(str, start, end) \
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\
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str = malloc (sizeof (char) * (uint32_t) ((end - start) + 1)); \
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\
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if (!str) { \
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error ("Out of memory"); \
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goto err; \
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} \
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\
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snprintf (str, (uint32_t) (end - start) + 1, "%s", start);
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static char*
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uriDecodeString (char* src, char* dst);
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static int
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uriIsIPv4 (const char* s, size_t size, char** err);
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static int
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uriIsIPv6 (const char* s, size_t size, char** err);
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static int
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_uri_parse_scheme (struct uri* uri, const char** pos, const char* end, struct aafLog* log);
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static int
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_uri_parse_authority (struct uri* uri, const char** pos, const char* end, struct aafLog* log);
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static int
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_uri_parse_userinfo (struct uri* uri, const char** pos, const char* end, struct aafLog* log);
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static int
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_uri_parse_hostname (struct uri* uri, const char** pos, const char* end, struct aafLog* log);
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static int
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_uri_parse_path (struct uri* uri, const char** pos, const char* end, struct aafLog* log);
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static int
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_uri_parse_query (struct uri* uri, const char** pos, const char* end, struct aafLog* log);
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static int
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_uri_parse_fragment (struct uri* uri, const char** pos, const char* end, struct aafLog* log);
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static void
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_uri_scheme2schemeType (struct uri* uri);
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static char*
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uriDecodeString (char* src, char* dst)
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{
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if (src == NULL) {
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return NULL;
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}
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if (dst == NULL) {
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dst = src;
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}
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char* end = src + strlen (src);
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while (*src) {
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if (*src == '%' && src + 2 < end && IS_HEX (*(src + 1)) && IS_HEX (*(src + 2))) {
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char d1 = *(src + 1);
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char d2 = *(src + 2);
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int digit = 0;
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digit = (d1 >= 'A' ? ((d1 & 0xdf) - 'A') + 10 : (d1 - '0'));
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digit <<= 4;
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digit += (d2 >= 'A' ? ((d2 & 0xdf) - 'A') + 10 : (d2 - '0'));
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assert (digit > CHAR_MIN && digit < UCHAR_MAX);
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*dst = (char)digit;
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src += 3;
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dst++;
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} else {
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*dst = *src;
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src++;
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dst++;
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}
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}
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*dst = 0x00;
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return dst;
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}
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static int
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_uri_parse_scheme (struct uri* uri, const char** pos, const char* end, struct aafLog* log)
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{
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const char* p = *pos;
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while (p < end && *p != ':') {
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if (!SCHEME_SAFE_CHAR (*p)) {
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error ("uri scheme contains invalid character : '%c' (0x%02x)", *p, *p);
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goto err;
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}
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p++;
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}
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if (*pos == p) {
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error ("uri is missing scheme");
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goto err;
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}
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URI_SET_STR (uri->scheme, *pos, p);
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/*
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* RFC 3986 - Generic
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* https://datatracker.ietf.org/doc/html/rfc3986#section-3.1
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*
|
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* « Although schemes are case- insensitive, the canonical form is lowercase
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* and documents that specify schemes must do so with lowercase letters.
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* An implementation should accept uppercase letters as equivalent to lowercase
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* in scheme names (e.g., allow "HTTP" as well as "http") for the sake of
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* robustness but should only produce lowercase scheme names for consistency.»
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*/
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char* pp = uri->scheme;
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while (*pp) {
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int charint = tolower (*pp);
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assert (charint > CHAR_MIN && charint < CHAR_MAX);
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*pp = (char)charint;
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||
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pp++;
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}
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_uri_scheme2schemeType (uri);
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*pos = ++p; /* Skips ':' */
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return 1;
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err:
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return -1;
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}
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static int
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_uri_parse_authority (struct uri* uri, const char** pos, const char* end, struct aafLog* log)
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{
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/*
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* RFC 3986 - Uniform Resource Identifier (URI): Generic Syntax
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* https://datatracker.ietf.org/doc/html/rfc3986#section-3.2
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*
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* « Many URI schemes include a hierarchical element for a naming
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* authority so that governance of the name space defined by the
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* remainder of the URI is delegated to that authority (which may, in
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* turn, delegate it further). The generic syntax provides a common
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* means for distinguishing an authority based on a registered name or
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* server address, along with optional port and user information.
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*
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* The authority component is preceded by a double slash ("//") and is
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* terminated by the next slash ("/"), question mark ("?"), or number
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* sign ("#") character, or by the end of the URI.
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*
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* authority = [ userinfo "@" ] host [ ":" port ]
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*
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* URI producers and normalizers should omit the ":" delimiter that
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* separates host from port if the port component is empty. Some
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* schemes do not allow the userinfo and/or port subcomponents.
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*
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* If a URI contains an authority component, then the path component
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* must either be empty or begin with a slash ("/") character. Non-
|
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* validating parsers (those that merely separate a URI reference into
|
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* its major components) will often ignore the subcomponent structure of
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* authority, treating it as an opaque string from the double-slash to
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* the first terminating delimiter, until such time as the URI is
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* dereferenced.»
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*/
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if (*(*pos) != '/' ||
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*((*pos) + 1) != '/') {
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/* uri has no authority */
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if (uri->scheme_t == URI_SCHEME_T_FILE) {
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uri->flags |= URI_T_LOCALHOST;
|
||
}
|
||
// uri->flags |= URI_T_LOCALHOST;
|
||
// uri->flags |= URI_T_HOST_EMPTY;
|
||
return 0;
|
||
}
|
||
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||
*pos += 2;
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const char* p = *pos;
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||
|
||
while (p < end &&
|
||
*p != '/' &&
|
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(!SCHEME_ALLOW_QUERY (uri) || *p != '?') &&
|
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(!SCHEME_ALLOW_FRAGMENT (uri) || *p != '#')) {
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p++;
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}
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||
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URI_SET_STR (uri->authority, *pos, p);
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||
|
||
if (*uri->authority == 0x00) {
|
||
uri->flags |= URI_T_LOCALHOST;
|
||
/* TODO: return 0 ? */
|
||
}
|
||
|
||
return 1;
|
||
|
||
err:
|
||
return -1;
|
||
}
|
||
|
||
static int
|
||
_uri_parse_userinfo (struct uri* uri, const char** pos, const char* end, struct aafLog* log)
|
||
{
|
||
int hasUserinfo = 0;
|
||
int userinfoIllegalCharacters = 0;
|
||
|
||
const char* p = *pos;
|
||
|
||
while (p < end &&
|
||
/* end of authority */
|
||
*p != '/' &&
|
||
(!SCHEME_ALLOW_QUERY (uri) || *p != '?') &&
|
||
(!SCHEME_ALLOW_FRAGMENT (uri) || *p != '#')) {
|
||
if (*p == '@') {
|
||
hasUserinfo = 1;
|
||
break;
|
||
}
|
||
|
||
if (!USERINFO_SAFE_CHAR (p)) {
|
||
userinfoIllegalCharacters++;
|
||
}
|
||
|
||
p++;
|
||
}
|
||
|
||
if (!hasUserinfo) {
|
||
return 0;
|
||
}
|
||
|
||
if (userinfoIllegalCharacters > 0) {
|
||
error ("uri userinfo contains %i invalid char%s", userinfoIllegalCharacters, (userinfoIllegalCharacters > 1) ? "s" : "");
|
||
goto err;
|
||
}
|
||
|
||
/* user / pass */
|
||
|
||
URI_SET_STR (uri->userinfo, *pos, p);
|
||
|
||
*pos = p + 1; // skips '@'
|
||
|
||
const char* subpos = NULL;
|
||
p = uri->userinfo;
|
||
|
||
while (1) {
|
||
if (!*p) {
|
||
if (subpos) {
|
||
URI_SET_STR (uri->pass, subpos, p);
|
||
} else {
|
||
URI_SET_STR (uri->user, uri->userinfo, p);
|
||
}
|
||
break;
|
||
} else if (*p == ':') {
|
||
URI_SET_STR (uri->user, uri->userinfo, p);
|
||
subpos = p + 1;
|
||
}
|
||
p++;
|
||
}
|
||
|
||
if (uri->opts & URI_OPT_DECODE_USERINFO && uri->userinfo) {
|
||
uriDecodeString (uri->userinfo, NULL);
|
||
}
|
||
|
||
if (uri->opts & URI_OPT_DECODE_USERPASS) {
|
||
if (uri->user)
|
||
uriDecodeString (uri->user, NULL);
|
||
if (uri->pass)
|
||
uriDecodeString (uri->pass, NULL);
|
||
}
|
||
|
||
return 1;
|
||
|
||
err:
|
||
return -1;
|
||
}
|
||
|
||
static int
|
||
_uri_parse_hostname (struct uri* uri, const char** pos, const char* end, struct aafLog* log)
|
||
{
|
||
const char* p = *pos;
|
||
|
||
if (**pos == '[') {
|
||
/*
|
||
* IPv6 - RFC 2732
|
||
* https://datatracker.ietf.org/doc/html/rfc2732
|
||
*/
|
||
(*pos)++; // skips '['
|
||
|
||
while (p < end &&
|
||
*p != ']') {
|
||
p++;
|
||
}
|
||
|
||
URI_SET_STR (uri->host, *pos, p);
|
||
|
||
char* iperr = NULL;
|
||
int rc = 0;
|
||
if ((rc = uriIsIPv6 (uri->host, strlen (uri->host), &iperr))) {
|
||
uri->flags |= URI_T_HOST_IPV6;
|
||
if (rc == 2) {
|
||
uri->flags |= URI_T_LOCALHOST;
|
||
}
|
||
} else {
|
||
error ("URI IPv6 Parser error : %s\n", iperr);
|
||
free (iperr);
|
||
goto err;
|
||
}
|
||
|
||
p++; // skips ']'
|
||
} else if ((*p == '.' || *p == '?') && (*(p + 1) == '/')) {
|
||
/* windows "//./" and "//?/" guard */
|
||
uri->flags |= URI_T_LOCALHOST;
|
||
return 0;
|
||
} else {
|
||
/*
|
||
* All other : IPv4, server name, local path
|
||
*/
|
||
|
||
while (p < end &&
|
||
*p != '/' && // if URI contains a path
|
||
*p != ':' && // if URI has an explicit port
|
||
(!SCHEME_ALLOW_QUERY (uri) || *p != '?') &&
|
||
(!SCHEME_ALLOW_FRAGMENT (uri) || *p != '#')) {
|
||
p++;
|
||
}
|
||
|
||
// debug( L" >>> %.*s", (int)(p-*pos), p );
|
||
|
||
URI_SET_STR (uri->host, *pos, p);
|
||
}
|
||
|
||
// if ( !(uri->flags & URI_T_HOST_IPV6 || uri->flags & URI_T_HOST_EMPTY) ) {
|
||
if (!(uri->flags & URI_T_HOST_IPV6) && uri->host != NULL && *uri->host != 0x00) {
|
||
if (uriIsIPv4 (uri->host, strlen (uri->host), NULL)) {
|
||
uri->flags &= ~(unsigned)URI_T_HOST_MASK;
|
||
uri->flags |= URI_T_HOST_IPV4;
|
||
if (strcmp (uri->host, "127.0.0.1") == 0) {
|
||
uri->flags |= URI_T_LOCALHOST;
|
||
}
|
||
} else if (strcmp (uri->host, "localhost") == 0) {
|
||
uri->flags |= URI_T_LOCALHOST;
|
||
} else {
|
||
uri->flags |= URI_T_HOST_REGNAME;
|
||
}
|
||
|
||
if (uri->opts & URI_OPT_DECODE_HOSTNAME) {
|
||
uriDecodeString (uri->host, NULL);
|
||
}
|
||
}
|
||
// else if ( uri->host == NULL ) {
|
||
// if ( uri->scheme_t == URI_SCHEME_T_FILE ) {
|
||
// uri->flags |= URI_T_LOCALHOST;
|
||
// }
|
||
// }
|
||
|
||
if (*p == ':') {
|
||
/* port */
|
||
|
||
*pos = ++p;
|
||
|
||
while (p < end &&
|
||
*p != '/' &&
|
||
(!SCHEME_ALLOW_QUERY (uri) || *p != '?') &&
|
||
(!SCHEME_ALLOW_FRAGMENT (uri) || *p != '#')) {
|
||
if (!IS_DIGIT (*p)) {
|
||
error ("URI port contains non-digit char : %c (0x%02x).\n", *p, *p);
|
||
goto err;
|
||
}
|
||
p++;
|
||
}
|
||
|
||
uri->port = atoi (*pos);
|
||
}
|
||
|
||
*pos = p; // keeps next char, first path '/'
|
||
|
||
return 1;
|
||
|
||
err:
|
||
return -1;
|
||
}
|
||
|
||
static int
|
||
_uri_parse_path (struct uri* uri, const char** pos, const char* end, struct aafLog* log)
|
||
{
|
||
int winDrive = 0;
|
||
|
||
/* sanitize start of path : ignores all slashes (after already parsed '//' identifying start of authority) */
|
||
|
||
while (*(*pos + 1) == '/') {
|
||
(*pos)++;
|
||
}
|
||
|
||
if (*(*pos) == '/' && WINDOWS_DRIVE_LETTER (((*pos) + 1))) {
|
||
/*
|
||
* Windows Drive (c: / c|) - RFC 8089
|
||
* https://datatracker.ietf.org/doc/html/rfc8089#appendix-E.2.2
|
||
*/
|
||
|
||
(*pos)++; /* moves forward last slash before driver letter, so path starts at the letter with no slash before. */
|
||
winDrive = 1;
|
||
}
|
||
|
||
const char* p = *pos;
|
||
|
||
while (p < end &&
|
||
(!SCHEME_ALLOW_QUERY (uri) || *p != '?') &&
|
||
(!SCHEME_ALLOW_FRAGMENT (uri) || *p != '#')) {
|
||
p++;
|
||
}
|
||
|
||
// debug( L" >>> (%i) %.*s", (int)(p-*pos), (int)(p-*pos), p );
|
||
|
||
URI_SET_STR (uri->path, *pos, p);
|
||
|
||
if (winDrive) {
|
||
if (uri->path[1] == '|') {
|
||
/*
|
||
* https://datatracker.ietf.org/doc/html/rfc8089#appendix-E.2.2
|
||
* « To update such an old URI, replace the vertical line "|" with a colon ":" »
|
||
*/
|
||
uri->path[1] = ':';
|
||
}
|
||
}
|
||
|
||
if (uri->opts & URI_OPT_DECODE_PATH) {
|
||
uriDecodeString (uri->path, NULL);
|
||
}
|
||
|
||
*pos = p;
|
||
|
||
return 1;
|
||
|
||
err:
|
||
return -1;
|
||
}
|
||
|
||
static int
|
||
_uri_parse_query (struct uri* uri, const char** pos, const char* end, struct aafLog* log)
|
||
{
|
||
const char* p = *pos;
|
||
|
||
if (!(uri->opts & URI_OPT_IGNORE_QUERY) && **pos == '?') {
|
||
while (p < end && *p != '#') {
|
||
p++;
|
||
}
|
||
|
||
(*pos)++; // skips '?'
|
||
|
||
URI_SET_STR (uri->query, *pos, p);
|
||
|
||
if (uri->opts & URI_OPT_DECODE_QUERY) {
|
||
uriDecodeString (uri->query, NULL);
|
||
}
|
||
|
||
*pos = p;
|
||
}
|
||
|
||
return 1;
|
||
|
||
err:
|
||
return -1;
|
||
}
|
||
|
||
static int
|
||
_uri_parse_fragment (struct uri* uri, const char** pos, const char* end, struct aafLog* log)
|
||
{
|
||
/*
|
||
* https://datatracker.ietf.org/doc/html/draft-yevstifeyev-ftp-uri-scheme#section-3.2.4.2
|
||
* « ... fragment identifier are allowed in any URI.
|
||
*
|
||
* The number sign ("#") characters (ASCII character 0x23), if used for
|
||
* the reason other than to delimit the fragment identifier SHALL be
|
||
* percent-encoded. »
|
||
*
|
||
* However, we've seen filenames in 'file' scheme with non encoded '#'.
|
||
* Plus, it seems impossible for a client to use fragments in a 'file'
|
||
* scheme URI. So the SCHEME_ALLOW_FRAGMENT() macro will make the parser
|
||
* treat '#' chars as a normal character, only for 'file' scheme.
|
||
*/
|
||
|
||
const char* p = *pos;
|
||
|
||
if (!(uri->opts & URI_OPT_IGNORE_FRAGMENT) && **pos == '#') {
|
||
while (p < end) {
|
||
p++;
|
||
}
|
||
|
||
(*pos)++; // skips '#'
|
||
|
||
URI_SET_STR (uri->fragment, *pos, p);
|
||
|
||
if (uri->opts & URI_OPT_DECODE_FRAGMENT) {
|
||
uriDecodeString (uri->fragment, NULL);
|
||
}
|
||
|
||
*pos = ++p; // skips '#'
|
||
}
|
||
|
||
return 1;
|
||
|
||
err:
|
||
return -1;
|
||
}
|
||
|
||
struct uri*
|
||
laaf_uri_parse (const char* uristr, enum uri_option optflags, struct aafLog* log)
|
||
{
|
||
if (uristr == NULL) {
|
||
return NULL;
|
||
}
|
||
|
||
struct uri* uri = calloc (1, sizeof (struct uri));
|
||
|
||
if (!uri) {
|
||
error ("Out of memory");
|
||
return NULL;
|
||
}
|
||
|
||
size_t urilen = strlen (uristr);
|
||
|
||
if (urilen >= MAX_URI_LENGTH) {
|
||
error ("uri is too long");
|
||
goto err;
|
||
}
|
||
|
||
uri->opts = optflags;
|
||
|
||
const char* pos = uristr;
|
||
const char* end = pos + urilen;
|
||
|
||
_uri_parse_scheme (uri, &pos, end, log);
|
||
|
||
if (_uri_parse_authority (uri, &pos, end, log)) {
|
||
_uri_parse_userinfo (uri, &pos, end, log);
|
||
_uri_parse_hostname (uri, &pos, end, log);
|
||
}
|
||
|
||
_uri_parse_path (uri, &pos, end, log);
|
||
|
||
if (SCHEME_ALLOW_QUERY (uri)) {
|
||
_uri_parse_query (uri, &pos, end, log);
|
||
}
|
||
|
||
if (SCHEME_ALLOW_FRAGMENT (uri)) {
|
||
_uri_parse_fragment (uri, &pos, end, log);
|
||
}
|
||
|
||
goto end;
|
||
|
||
err:
|
||
laaf_uri_free (uri);
|
||
uri = NULL;
|
||
|
||
end:
|
||
|
||
return uri;
|
||
}
|
||
|
||
void
|
||
laaf_uri_free (struct uri* uri)
|
||
{
|
||
if (!uri) {
|
||
return;
|
||
}
|
||
|
||
free (uri->scheme);
|
||
free (uri->userinfo);
|
||
free (uri->authority);
|
||
free (uri->user);
|
||
free (uri->pass);
|
||
free (uri->host);
|
||
free (uri->path);
|
||
free (uri->query);
|
||
free (uri->fragment);
|
||
|
||
free (uri);
|
||
}
|
||
|
||
static int
|
||
uriIsIPv4 (const char* s, size_t size, char** err)
|
||
{
|
||
int octets = 0;
|
||
const char* currentOctetStart = s;
|
||
|
||
char prev = 0;
|
||
|
||
for (size_t i = 0; i <= size; i++) {
|
||
if (prev == 0) {
|
||
if (IS_DIGIT (*(s + i))) {
|
||
currentOctetStart = (s + i);
|
||
prev = 'd';
|
||
continue;
|
||
}
|
||
|
||
if (*(s + i) == '.') {
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "IPV4 parser error : can't start with a single '.'");
|
||
}
|
||
return 0;
|
||
}
|
||
}
|
||
|
||
if (prev == 'p') {
|
||
if (IS_DIGIT (*(s + i))) {
|
||
currentOctetStart = (s + i);
|
||
prev = 'd';
|
||
continue;
|
||
}
|
||
|
||
if (*(s + i) == '.') {
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "IPV4 parser error : can't have successive '.'");
|
||
}
|
||
return 0;
|
||
}
|
||
}
|
||
|
||
if (prev == 'd') {
|
||
if (IS_DIGIT (*(s + i))) {
|
||
prev = 'd';
|
||
continue;
|
||
}
|
||
|
||
if (i == size || *(s + i) == '.') { // period
|
||
int octet = atoi (currentOctetStart);
|
||
if (octet > 255) {
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "IPV4 parser error : octet %i is too high : %.*s", (octets), (int)((s + i) - currentOctetStart), currentOctetStart);
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
if (i + 1 == size) {
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "IPV4 parser error : can't end with a single '.'");
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
prev = 'p';
|
||
octets++;
|
||
continue;
|
||
}
|
||
}
|
||
|
||
if (i == size) {
|
||
break;
|
||
}
|
||
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "IPV4 parser error : illegal char '%c' (0x%02x)", *(s + i), *(s + i));
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
if (octets > 4) {
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "IPV4 parser error : too many octets");
|
||
}
|
||
return 0;
|
||
}
|
||
if (octets < 4) {
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "IPV4 parser error : not enough octets");
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
return 1;
|
||
}
|
||
|
||
static int
|
||
uriIsIPv6 (const char* s, size_t size, char** err)
|
||
{
|
||
int segmentCount = 0;
|
||
int emptySegmentCount = 0;
|
||
int curSegmentLength = 0;
|
||
int ipv4portion = 0;
|
||
|
||
int loopback = 0;
|
||
|
||
const char* curSegmentStart = s;
|
||
|
||
char prev = 0;
|
||
|
||
for (size_t i = 0; i <= size; i++) {
|
||
if (prev == 0) {
|
||
if (IS_HEX (*(s + i))) {
|
||
segmentCount++;
|
||
curSegmentStart = s + i;
|
||
curSegmentLength++;
|
||
prev = 'h'; // hex
|
||
|
||
if (loopback >= 0) {
|
||
if (!IS_DIGIT (*(s + i))) {
|
||
loopback = -1;
|
||
} else {
|
||
loopback += (*(s + i) - '0'); //atoi(*(s+i));
|
||
}
|
||
}
|
||
|
||
continue;
|
||
}
|
||
|
||
if (*(s + i) == ':' && *(s + (i + 1)) == ':') {
|
||
emptySegmentCount++;
|
||
prev = 'e', // empty
|
||
i++;
|
||
continue;
|
||
}
|
||
|
||
if (*(s + i) == ':') {
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "can't start with a single ':'");
|
||
}
|
||
return 0;
|
||
}
|
||
}
|
||
|
||
if (prev == 'h') { /* hex */
|
||
|
||
if (IS_HEX (*(s + i))) {
|
||
curSegmentLength++;
|
||
|
||
if (loopback >= 0) {
|
||
if (!IS_DIGIT (*(s + i))) {
|
||
loopback = -1;
|
||
} else {
|
||
loopback += (*(s + i) - '0');
|
||
}
|
||
}
|
||
|
||
continue;
|
||
}
|
||
|
||
if (*(s + i) == '.') { /* period */
|
||
int octet = atoi (curSegmentStart);
|
||
if (octet > 255) {
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "ipv4 portion octet %i is too high : %.*s", (ipv4portion), curSegmentLength, curSegmentStart);
|
||
}
|
||
return 0;
|
||
}
|
||
// debug( L"%i", octet );
|
||
prev = 'p';
|
||
ipv4portion++;
|
||
continue;
|
||
}
|
||
|
||
if (i == size || *(s + i) == ':') {
|
||
if (curSegmentLength > 4) {
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "segment %i is too long : %.*s", (segmentCount - 1), curSegmentLength, curSegmentStart);
|
||
}
|
||
return 0;
|
||
}
|
||
/* here we can parse segment */
|
||
curSegmentStart = NULL;
|
||
curSegmentLength = 0;
|
||
|
||
if (i < size && *(s + (i + 1)) == ':') {
|
||
emptySegmentCount++;
|
||
prev = 'e', /* empty "::" */
|
||
i++;
|
||
} else if (i + 1 == size) {
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "can't end with a single ':'");
|
||
}
|
||
return 0;
|
||
} else {
|
||
prev = 'c'; /* colon ":" */
|
||
}
|
||
continue;
|
||
}
|
||
}
|
||
|
||
if (prev == 'e' || prev == 'c') { /* empty or colon */
|
||
|
||
if (IS_HEX (*(s + i))) {
|
||
segmentCount++;
|
||
curSegmentStart = s + i;
|
||
curSegmentLength++;
|
||
prev = 'h'; /* hex */
|
||
|
||
if (loopback >= 0) {
|
||
if (!IS_DIGIT (*(s + i))) {
|
||
loopback = -1;
|
||
} else {
|
||
loopback += (*(s + i) - '0');
|
||
}
|
||
}
|
||
|
||
continue;
|
||
}
|
||
|
||
if (*(s + i) == ':') {
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "can't have more than two successive ':'");
|
||
}
|
||
return 0;
|
||
}
|
||
}
|
||
|
||
if (prev == 'p') {
|
||
if (IS_DIGIT (*(s + i))) {
|
||
curSegmentStart = s + i;
|
||
prev = 'd';
|
||
continue;
|
||
}
|
||
|
||
if (*(s + i) == '.') {
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "can't have successive '.'");
|
||
}
|
||
return 0;
|
||
}
|
||
}
|
||
|
||
if (prev == 'd') {
|
||
if (IS_DIGIT (*(s + i)) && *(s + i + 1) != '\0' && i + 1 != size) {
|
||
prev = 'd';
|
||
continue;
|
||
}
|
||
|
||
if (i == size || *(s + i) == '.') { /* period */
|
||
int octet = atoi (curSegmentStart);
|
||
if (octet > 255) {
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "ipv4 portion octet %i is too high : %.*s", (ipv4portion), curSegmentLength, curSegmentStart);
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
// debug( L"%i", octet );
|
||
|
||
if (i + 1 == size) {
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "can't end with a single '.'");
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
prev = 'p';
|
||
ipv4portion++;
|
||
continue;
|
||
}
|
||
}
|
||
|
||
if (i == size) {
|
||
break;
|
||
}
|
||
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "illegal char '%c' (0x%02x)", *(s + i), *(s + i));
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
// debug( L"segments : %i", segmentCount );
|
||
// debug( L"empty segments : %i", emptySegmentCount );
|
||
// debug( L"ipv4portion : %i", ipv4portion );
|
||
|
||
if (ipv4portion > 4) {
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "too many octets in ipv4 portion : %i", ipv4portion);
|
||
}
|
||
return 0;
|
||
}
|
||
if (ipv4portion > 0 && ipv4portion < 4) {
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "not enough octets in ipv4 portion : %i", ipv4portion);
|
||
}
|
||
return 0;
|
||
}
|
||
if (emptySegmentCount + (segmentCount / 2) + ipv4portion > 8) {
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "too many segments");
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
if (emptySegmentCount == 0 && (((ipv4portion / 2) + segmentCount) < 8)) {
|
||
if (err) {
|
||
laaf_util_snprintf_realloc (err, NULL, 0, "not enough segments");
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
// debug( L"LOCALHOST >>>>>>> %i", loopback );
|
||
|
||
/*
|
||
* 1: valid ipv6 address
|
||
* 2: valid ipv6 address and is loopback
|
||
*/
|
||
|
||
return (loopback == 1) ? 2 : 1;
|
||
}
|
||
|
||
static void
|
||
_uri_scheme2schemeType (struct uri* uri)
|
||
{
|
||
if (strcmp (uri->scheme, "afp") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_AFP;
|
||
} else if (strcmp (uri->scheme, "cifs") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_CIFS;
|
||
} else if (strcmp (uri->scheme, "data") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_DATA;
|
||
} else if (strcmp (uri->scheme, "dns") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_DNS;
|
||
} else if (strcmp (uri->scheme, "file") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_FILE;
|
||
} else if (strcmp (uri->scheme, "ftp") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_FTP;
|
||
} else if (strcmp (uri->scheme, "http") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_HTTP;
|
||
} else if (strcmp (uri->scheme, "https") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_HTTPS;
|
||
} else if (strcmp (uri->scheme, "imap") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_IMAP;
|
||
} else if (strcmp (uri->scheme, "irc") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_IRC;
|
||
} else if (strcmp (uri->scheme, "mailto") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_MAILTO;
|
||
} else if (strcmp (uri->scheme, "nfs") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_NFS;
|
||
} else if (strcmp (uri->scheme, "pop") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_POP;
|
||
} else if (strcmp (uri->scheme, "rtsp") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_RTSP;
|
||
} else if (strcmp (uri->scheme, "sftp") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_SFTP;
|
||
} else if (strcmp (uri->scheme, "sip") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_SIP;
|
||
} else if (strcmp (uri->scheme, "smb") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_SMB;
|
||
} else if (strcmp (uri->scheme, "ssh") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_SSH;
|
||
} else if (strcmp (uri->scheme, "tel") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_TEL;
|
||
} else if (strcmp (uri->scheme, "telnet") == 0) {
|
||
uri->scheme_t = URI_SCHEME_T_TELNET;
|
||
} else {
|
||
uri->scheme_t = URI_SCHEME_T_UNKNOWN;
|
||
}
|
||
}
|