/
flatpak-uri.c
1763 lines (1527 loc) · 46.5 KB
/
flatpak-uri.c
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/* vi:set et sw=2 sts=2 cin cino=t0,f0,(0,{s,>2s,n-s,^-s,e-s:
* Copyright © 1995-1998 Free Software Foundation, Inc.
* Copyright © 2014-2019 Red Hat, Inc
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http:https://www.gnu.org/licenses/>.
*
* Authors:
* Alexander Larsson <[email protected]>
*/
#include "config.h"
#include <glib/gi18n-lib.h>
#include "flatpak-uri-private.h"
#if !GLIB_CHECK_VERSION (2, 66, 0)
struct _GUri {
gchar *scheme;
gchar *userinfo;
gchar *host;
gint port;
gchar *path;
gchar *query;
gchar *fragment;
gchar *user;
gchar *password;
gchar *auth_params;
GUriFlags flags;
int ref_count;
};
GUri *
flatpak_g_uri_ref (GUri *uri)
{
g_return_val_if_fail (uri != NULL, NULL);
g_atomic_int_inc (&uri->ref_count);
return uri;
}
void
flatpak_g_uri_unref (GUri *uri)
{
g_return_if_fail (uri != NULL);
if (g_atomic_int_dec_and_test (&uri->ref_count))
{
g_free (uri->scheme);
g_free (uri->userinfo);
g_free (uri->host);
g_free (uri->path);
g_free (uri->query);
g_free (uri->fragment);
g_free (uri->user);
g_free (uri->password);
g_free (uri->auth_params);
g_free (uri);
}
}
static gboolean
flatpak_g_uri_char_is_unreserved (gchar ch)
{
if (g_ascii_isalnum (ch))
return TRUE;
return ch == '-' || ch == '.' || ch == '_' || ch == '~';
}
#define XDIGIT(c) ((c) <= '9' ? (c) - '0' : ((c) & 0x4F) - 'A' + 10)
#define HEXCHAR(s) ((XDIGIT (s[1]) << 4) + XDIGIT (s[2]))
static gssize
uri_decoder (gchar **out,
const gchar *illegal_chars,
const gchar *start,
gsize length,
gboolean just_normalize,
gboolean www_form,
GUriFlags flags,
GError **error)
{
gchar c;
GString *decoded;
const gchar *invalid, *s, *end;
gssize len;
if (!(flags & G_URI_FLAGS_ENCODED))
just_normalize = FALSE;
decoded = g_string_sized_new (length + 1);
for (s = start, end = s + length; s < end; s++)
{
if (*s == '%')
{
if (s + 2 >= end ||
!g_ascii_isxdigit (s[1]) ||
!g_ascii_isxdigit (s[2]))
{
/* % followed by non-hex or the end of the string; this is an error */
if (!(flags & G_URI_FLAGS_PARSE_RELAXED))
{
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
/* xgettext: no-c-format */
_("Invalid %-encoding in URI"));
g_string_free (decoded, TRUE);
return -1;
}
/* In non-strict mode, just let it through; we *don't*
* fix it to "%25", since that might change the way that
* the URI's owner would interpret it.
*/
g_string_append_c (decoded, *s);
continue;
}
c = HEXCHAR (s);
if (illegal_chars && strchr (illegal_chars, c))
{
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
_("Illegal character in URI"));
g_string_free (decoded, TRUE);
return -1;
}
if (just_normalize && !flatpak_g_uri_char_is_unreserved (c))
{
/* Leave the % sequence there but normalize it. */
g_string_append_c (decoded, *s);
g_string_append_c (decoded, g_ascii_toupper (s[1]));
g_string_append_c (decoded, g_ascii_toupper (s[2]));
s += 2;
}
else
{
g_string_append_c (decoded, c);
s += 2;
}
}
else if (www_form && *s == '+')
g_string_append_c (decoded, ' ');
/* Normalize any illegal characters. */
else if (just_normalize && (!g_ascii_isgraph (*s)))
g_string_append_printf (decoded, "%%%02X", (guchar)*s);
else
g_string_append_c (decoded, *s);
}
len = decoded->len;
g_assert (len >= 0);
if (!(flags & G_URI_FLAGS_ENCODED) &&
!g_utf8_validate (decoded->str, len, &invalid))
{
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
_("Non-UTF-8 characters in URI"));
g_string_free (decoded, TRUE);
return -1;
}
if (out)
*out = g_string_free (decoded, FALSE);
else
g_string_free (decoded, TRUE);
return len;
}
static gboolean
uri_decode (gchar **out,
const gchar *illegal_chars,
const gchar *start,
gsize length,
gboolean www_form,
GUriFlags flags,
GError **error)
{
return uri_decoder (out, illegal_chars, start, length, FALSE, www_form, flags,
error) != -1;
}
static gboolean
uri_normalize (gchar **out,
const gchar *start,
gsize length,
GUriFlags flags,
GError **error)
{
return uri_decoder (out, NULL, start, length, TRUE, FALSE, flags,
error) != -1;
}
static gboolean
parse_ip_literal (const gchar *start,
gsize length,
GUriFlags flags,
gchar **out,
GError **error)
{
gchar *pct, *zone_id = NULL;
gchar *addr = NULL;
gsize addr_length = 0;
gsize zone_id_length = 0;
gchar *decoded_zone_id = NULL;
if (start[length - 1] != ']')
goto bad_ipv6_literal;
/* Drop the square brackets */
addr = g_strndup (start + 1, length - 2);
addr_length = length - 2;
/* If there's an IPv6 scope ID, split out the zone. */
pct = strchr (addr, '%');
if (pct != NULL)
{
*pct = '\0';
if (addr_length - (pct - addr) >= 4 &&
*(pct + 1) == '2' && *(pct + 2) == '5')
{
zone_id = pct + 3;
zone_id_length = addr_length - (zone_id - addr);
}
else if (flags & G_URI_FLAGS_PARSE_RELAXED &&
addr_length - (pct - addr) >= 2)
{
zone_id = pct + 1;
zone_id_length = addr_length - (zone_id - addr);
}
else
goto bad_ipv6_literal;
g_assert (zone_id_length >= 1);
}
/* addr must be an IPv6 address */
if (!g_hostname_is_ip_address (addr) || !strchr (addr, ':'))
goto bad_ipv6_literal;
/* Zone ID must be valid. It can contain %-encoded characters. */
if (zone_id != NULL &&
!uri_decode (&decoded_zone_id, NULL, zone_id, zone_id_length, FALSE,
flags, NULL))
goto bad_ipv6_literal;
/* Success */
if (out != NULL && decoded_zone_id != NULL)
*out = g_strconcat (addr, "%", decoded_zone_id, NULL);
else if (out != NULL)
*out = g_steal_pointer (&addr);
g_free (addr);
g_free (decoded_zone_id);
return TRUE;
bad_ipv6_literal:
g_free (addr);
g_free (decoded_zone_id);
g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
_("Invalid IPv6 address ‘%.*s’ in URI"),
(gint)length, start);
return FALSE;
}
static gboolean
parse_host (const gchar *start,
gsize length,
GUriFlags flags,
gchar **out,
GError **error)
{
gchar *decoded = NULL, *host;
gchar *addr = NULL;
if (*start == '[')
{
if (!parse_ip_literal (start, length, flags, &host, error))
return FALSE;
goto ok;
}
if (g_ascii_isdigit (*start))
{
addr = g_strndup (start, length);
if (g_hostname_is_ip_address (addr))
{
host = addr;
goto ok;
}
g_free (addr);
}
if (flags & G_URI_FLAGS_NON_DNS)
{
if (!uri_normalize (&decoded, start, length, flags,
error))
return FALSE;
host = g_steal_pointer (&decoded);
goto ok;
}
flags &= ~G_URI_FLAGS_ENCODED;
if (!uri_decode (&decoded, NULL, start, length, FALSE, flags,
error))
return FALSE;
/* You're not allowed to %-encode an IP address, so if it wasn't
* one before, it better not be one now.
*/
if (g_hostname_is_ip_address (decoded))
{
g_free (decoded);
g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
_("Illegal encoded IP address ‘%.*s’ in URI"),
(gint)length, start);
return FALSE;
}
if (g_hostname_is_non_ascii (decoded))
{
host = g_hostname_to_ascii (decoded);
if (host == NULL)
{
g_free (decoded);
g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
_("Illegal internationalized hostname ‘%.*s’ in URI"),
(gint) length, start);
return FALSE;
}
}
else
{
host = g_steal_pointer (&decoded);
}
ok:
if (out)
*out = g_steal_pointer (&host);
g_free (host);
g_free (decoded);
return TRUE;
}
static gboolean
parse_port (const gchar *start,
gsize length,
gint *out,
GError **error)
{
gchar *end;
gulong parsed_port;
/* strtoul() allows leading + or -, so we have to check this first. */
if (!g_ascii_isdigit (*start))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
_("Could not parse port ‘%.*s’ in URI"),
(gint)length, start);
return FALSE;
}
/* We know that *(start + length) is either '\0' or a non-numeric
* character, so strtoul() won't scan beyond it.
*/
parsed_port = strtoul (start, &end, 10);
if (end != start + length)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
_("Could not parse port ‘%.*s’ in URI"),
(gint)length, start);
return FALSE;
}
else if (parsed_port > 65535)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
_("Port ‘%.*s’ in URI is out of range"),
(gint)length, start);
return FALSE;
}
if (out)
*out = parsed_port;
return TRUE;
}
static gboolean
parse_userinfo (const gchar *start,
gsize length,
GUriFlags flags,
gchar **user,
gchar **password,
gchar **auth_params,
GError **error)
{
const gchar *user_end = NULL, *password_end = NULL, *auth_params_end;
auth_params_end = start + length;
if (flags & G_URI_FLAGS_HAS_AUTH_PARAMS)
password_end = memchr (start, ';', auth_params_end - start);
if (!password_end)
password_end = auth_params_end;
if (flags & G_URI_FLAGS_HAS_PASSWORD)
user_end = memchr (start, ':', password_end - start);
if (!user_end)
user_end = password_end;
if (!uri_normalize (user, start, user_end - start, flags,
error))
return FALSE;
if (*user_end == ':')
{
start = user_end + 1;
if (!uri_normalize (password, start, password_end - start, flags,
error))
{
if (user)
g_clear_pointer (user, g_free);
return FALSE;
}
}
else if (password)
*password = NULL;
if (*password_end == ';')
{
start = password_end + 1;
if (!uri_normalize (auth_params, start, auth_params_end - start, flags,
error))
{
if (user)
g_clear_pointer (user, g_free);
if (password)
g_clear_pointer (password, g_free);
return FALSE;
}
}
else if (auth_params)
*auth_params = NULL;
return TRUE;
}
static gchar *
uri_cleanup (const gchar *uri_string)
{
GString *copy;
const gchar *end;
/* Skip leading whitespace */
while (g_ascii_isspace (*uri_string))
uri_string++;
/* Ignore trailing whitespace */
end = uri_string + strlen (uri_string);
while (end > uri_string && g_ascii_isspace (*(end - 1)))
end--;
/* Copy the rest, encoding unencoded spaces and stripping other whitespace */
copy = g_string_sized_new (end - uri_string);
while (uri_string < end)
{
if (*uri_string == ' ')
g_string_append (copy, "%20");
else if (g_ascii_isspace (*uri_string))
;
else
g_string_append_c (copy, *uri_string);
uri_string++;
}
return g_string_free (copy, FALSE);
}
static gboolean
should_normalize_empty_path (const char *scheme)
{
const char * const schemes[] = { "https", "http", "wss", "ws" };
gsize i;
for (i = 0; i < G_N_ELEMENTS (schemes); ++i)
{
if (!strcmp (schemes[i], scheme))
return TRUE;
}
return FALSE;
}
static int
normalize_port (const char *scheme,
int port)
{
const char *default_schemes[3] = { NULL };
int i;
switch (port)
{
case 21:
default_schemes[0] = "ftp";
break;
case 80:
default_schemes[0] = "http";
default_schemes[1] = "ws";
break;
case 443:
default_schemes[0] = "https";
default_schemes[1] = "wss";
break;
default:
break;
}
for (i = 0; default_schemes[i]; ++i)
{
if (!strcmp (scheme, default_schemes[i]))
return -1;
}
return port;
}
static int
default_scheme_port (const char *scheme)
{
if (strcmp (scheme, "http") == 0 || strcmp (scheme, "ws") == 0)
return 80;
if (strcmp (scheme, "https") == 0 || strcmp (scheme, "wss") == 0)
return 443;
if (strcmp (scheme, "ftp") == 0)
return 21;
return -1;
}
static gboolean
flatpak_g_uri_split_internal (const gchar *uri_string,
GUriFlags flags,
gchar **scheme,
gchar **userinfo,
gchar **user,
gchar **password,
gchar **auth_params,
gchar **host,
gint *port,
gchar **path,
gchar **query,
gchar **fragment,
GError **error)
{
const gchar *end, *colon, *at, *path_start, *semi, *question;
const gchar *p, *bracket, *hostend;
gchar *cleaned_uri_string = NULL;
gchar *normalized_scheme = NULL;
if (scheme)
*scheme = NULL;
if (userinfo)
*userinfo = NULL;
if (user)
*user = NULL;
if (password)
*password = NULL;
if (auth_params)
*auth_params = NULL;
if (host)
*host = NULL;
if (port)
*port = -1;
if (path)
*path = NULL;
if (query)
*query = NULL;
if (fragment)
*fragment = NULL;
if ((flags & G_URI_FLAGS_PARSE_RELAXED) && strpbrk (uri_string, " \t\n\r"))
{
cleaned_uri_string = uri_cleanup (uri_string);
uri_string = cleaned_uri_string;
}
/* Find scheme */
p = uri_string;
while (*p && (g_ascii_isalpha (*p) ||
(p > uri_string && (g_ascii_isdigit (*p) ||
*p == '.' || *p == '+' || *p == '-'))))
p++;
if (p > uri_string && *p == ':')
{
normalized_scheme = g_ascii_strdown (uri_string, p - uri_string);
if (scheme)
*scheme = g_steal_pointer (&normalized_scheme);
p++;
}
else
{
if (scheme)
*scheme = NULL;
p = uri_string;
}
/* Check for authority */
if (strncmp (p, "//", 2) == 0)
{
p += 2;
path_start = p + strcspn (p, "/?#");
at = memchr (p, '@', path_start - p);
if (at)
{
if (flags & G_URI_FLAGS_PARSE_RELAXED)
{
gchar *next_at;
/* Any "@"s in the userinfo must be %-encoded, but
* people get this wrong sometimes. Since "@"s in the
* hostname are unlikely (and also wrong anyway), assume
* that if there are extra "@"s, they belong in the
* userinfo.
*/
do
{
next_at = memchr (at + 1, '@', path_start - (at + 1));
if (next_at)
at = next_at;
}
while (next_at);
}
if (user || password || auth_params ||
(flags & (G_URI_FLAGS_HAS_PASSWORD|G_URI_FLAGS_HAS_AUTH_PARAMS)))
{
if (!parse_userinfo (p, at - p, flags,
user, password, auth_params,
error))
goto fail;
}
if (!uri_normalize (userinfo, p, at - p, flags,
error))
goto fail;
p = at + 1;
}
if (flags & G_URI_FLAGS_PARSE_RELAXED)
{
semi = strchr (p, ';');
if (semi && semi < path_start)
{
/* Technically, semicolons are allowed in the "host"
* production, but no one ever does this, and some
* schemes mistakenly use semicolon as a delimiter
* marking the start of the path. We have to check this
* after checking for userinfo though, because a
* semicolon before the "@" must be part of the
* userinfo.
*/
path_start = semi;
}
}
/* Find host and port. The host may be a bracket-delimited IPv6
* address, in which case the colon delimiting the port must come
* (immediately) after the close bracket.
*/
if (*p == '[')
{
bracket = memchr (p, ']', path_start - p);
if (bracket && *(bracket + 1) == ':')
colon = bracket + 1;
else
colon = NULL;
}
else
colon = memchr (p, ':', path_start - p);
hostend = colon ? colon : path_start;
if (!parse_host (p, hostend - p, flags, host, error))
goto fail;
if (colon && colon != path_start - 1)
{
p = colon + 1;
if (!parse_port (p, path_start - p, port, error))
goto fail;
}
p = path_start;
}
/* Find fragment. */
end = p + strcspn (p, "#");
if (*end == '#')
{
if (!uri_normalize (fragment, end + 1, strlen (end + 1),
flags | (flags & G_URI_FLAGS_ENCODED_FRAGMENT ? G_URI_FLAGS_ENCODED : 0),
error))
goto fail;
}
/* Find query */
question = memchr (p, '?', end - p);
if (question)
{
if (!uri_normalize (query, question + 1, end - (question + 1),
flags | (flags & G_URI_FLAGS_ENCODED_QUERY ? G_URI_FLAGS_ENCODED : 0),
error))
goto fail;
end = question;
}
if (!uri_normalize (path, p, end - p,
flags | (flags & G_URI_FLAGS_ENCODED_PATH ? G_URI_FLAGS_ENCODED : 0),
error))
goto fail;
/* Scheme-based normalization */
if (flags & G_URI_FLAGS_SCHEME_NORMALIZE && ((scheme && *scheme) || normalized_scheme))
{
const char *scheme_str = scheme && *scheme ? *scheme : normalized_scheme;
if (should_normalize_empty_path (scheme_str) && path && !**path)
{
g_free (*path);
*path = g_strdup ("/");
}
if (port && *port == -1)
*port = default_scheme_port (scheme_str);
}
g_free (normalized_scheme);
g_free (cleaned_uri_string);
return TRUE;
fail:
if (scheme)
g_clear_pointer (scheme, g_free);
if (userinfo)
g_clear_pointer (userinfo, g_free);
if (host)
g_clear_pointer (host, g_free);
if (port)
*port = -1;
if (path)
g_clear_pointer (path, g_free);
if (query)
g_clear_pointer (query, g_free);
if (fragment)
g_clear_pointer (fragment, g_free);
g_free (normalized_scheme);
g_free (cleaned_uri_string);
return FALSE;
}
/* Implements the "Remove Dot Segments" algorithm from section 5.2.4 of
* RFC 3986.
*
* See https://tools.ietf.org/html/rfc3986#section-5.2.4
*/
static void
remove_dot_segments (gchar *path)
{
/* The output can be written to the same buffer that the input
* is read from, as the output pointer is only ever increased
* when the input pointer is increased as well, and the input
* pointer is never decreased. */
gchar *input = path;
gchar *output = path;
if (!*path)
return;
while (*input)
{
/* A. If the input buffer begins with a prefix of "../" or "./",
* then remove that prefix from the input buffer; otherwise,
*/
if (strncmp (input, "../", 3) == 0)
input += 3;
else if (strncmp (input, "./", 2) == 0)
input += 2;
/* B. if the input buffer begins with a prefix of "/./" or "/.",
* where "." is a complete path segment, then replace that
* prefix with "/" in the input buffer; otherwise,
*/
else if (strncmp (input, "/./", 3) == 0)
input += 2;
else if (strcmp (input, "/.") == 0)
input[1] = '\0';
/* C. if the input buffer begins with a prefix of "/../" or "/..",
* where ".." is a complete path segment, then replace that
* prefix with "/" in the input buffer and remove the last
* segment and its preceding "/" (if any) from the output
* buffer; otherwise,
*/
else if (strncmp (input, "/../", 4) == 0)
{
input += 3;
if (output > path)
{
do
{
output--;
}
while (*output != '/' && output > path);
}
}
else if (strcmp (input, "/..") == 0)
{
input[1] = '\0';
if (output > path)
{
do
{
output--;
}
while (*output != '/' && output > path);
}
}
/* D. if the input buffer consists only of "." or "..", then remove
* that from the input buffer; otherwise,
*/
else if (strcmp (input, "..") == 0 || strcmp (input, ".") == 0)
input[0] = '\0';
/* E. move the first path segment in the input buffer to the end of
* the output buffer, including the initial "/" character (if
* any) and any subsequent characters up to, but not including,
* the next "/" character or the end of the input buffer.
*/
else
{
*output++ = *input++;
while (*input && *input != '/')
*output++ = *input++;
}
}
*output = '\0';
}
GUri *
flatpak_g_uri_parse (const gchar *uri_string,
GUriFlags flags,
GError **error)
{
g_return_val_if_fail (uri_string != NULL, NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
return flatpak_g_uri_parse_relative (NULL, uri_string, flags, error);
}
GUri *
flatpak_g_uri_parse_relative (GUri *base_uri,
const gchar *uri_ref,
GUriFlags flags,
GError **error)
{
GUri *uri = NULL;
g_return_val_if_fail (uri_ref != NULL, NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
g_return_val_if_fail (base_uri == NULL || base_uri->scheme != NULL, NULL);
/* Use GUri struct to construct the return value: there is no guarantee it is
* actually correct within the function body. */
uri = g_new0 (GUri, 1);
uri->ref_count = 1;
uri->flags = flags;
if (!flatpak_g_uri_split_internal (uri_ref, flags,
&uri->scheme, &uri->userinfo,
&uri->user, &uri->password, &uri->auth_params,
&uri->host, &uri->port,
&uri->path, &uri->query, &uri->fragment,
error))
{
flatpak_g_uri_unref (uri);
return NULL;
}
if (!uri->scheme && !base_uri)
{
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
_("URI is not absolute, and no base URI was provided"));
flatpak_g_uri_unref (uri);
return NULL;
}
if (base_uri)
{
/* This is section 5.2.2 of RFC 3986, except that we're doing
* it in place in @uri rather than copying from R to T.
*
* See https://tools.ietf.org/html/rfc3986#section-5.2.2
*/
if (uri->scheme)
remove_dot_segments (uri->path);
else
{
uri->scheme = g_strdup (base_uri->scheme);
if (uri->host)
remove_dot_segments (uri->path);
else
{
if (!*uri->path)
{
g_free (uri->path);
uri->path = g_strdup (base_uri->path);
if (!uri->query)
uri->query = g_strdup (base_uri->query);
}
else
{
if (*uri->path == '/')
remove_dot_segments (uri->path);
else
{
gchar *newpath, *last;
last = strrchr (base_uri->path, '/');
if (last)
{
newpath = g_strdup_printf ("%.*s/%s",
(gint)(last - base_uri->path),
base_uri->path,
uri->path);
}
else
newpath = g_strdup_printf ("/%s", uri->path);
g_free (uri->path);
uri->path = g_steal_pointer (&newpath);
remove_dot_segments (uri->path);
}
}
uri->userinfo = g_strdup (base_uri->userinfo);
uri->user = g_strdup (base_uri->user);
uri->password = g_strdup (base_uri->password);
uri->auth_params = g_strdup (base_uri->auth_params);
uri->host = g_strdup (base_uri->host);
uri->port = base_uri->port;
}
}
/* Scheme normalization couldn't have been done earlier
* as the relative URI may not have had a scheme */
if (flags & G_URI_FLAGS_SCHEME_NORMALIZE)
{
if (should_normalize_empty_path (uri->scheme) && !*uri->path)
{
g_free (uri->path);
uri->path = g_strdup ("/");
}
uri->port = normalize_port (uri->scheme, uri->port);
}
}
else
{
remove_dot_segments (uri->path);
}
return g_steal_pointer (&uri);
}
/* userinfo as a whole can contain sub-delims + ":", but split-out
* user can't contain ":" or ";", and split-out password can't contain
* ";".
*/
#define USERINFO_ALLOWED_CHARS G_URI_RESERVED_CHARS_ALLOWED_IN_USERINFO
#define USER_ALLOWED_CHARS "!$&'()*+,="
#define PASSWORD_ALLOWED_CHARS "!$&'()*+,=:"