static const WCHAR scheme_http[] = {'h','t','t','p',0};
static const WCHAR scheme_https[] = {'h','t','t','p','s',0};
-static BOOL set_component( WCHAR **str, DWORD *str_len, WCHAR *value, DWORD len, DWORD flags )
+static DWORD set_component( WCHAR **str, DWORD *str_len, WCHAR *value, DWORD len, DWORD flags, BOOL *overflow )
{
+ if (*str && !*str_len) return ERROR_INVALID_PARAMETER;
+ if (!*str_len) return ERROR_SUCCESS;
if (!*str)
{
- if (len && (flags & ICU_DECODE))
- {
- set_last_error( ERROR_INVALID_PARAMETER );
- return FALSE;
- }
+ if (len && *str_len && (flags & (ICU_DECODE|ICU_ESCAPE))) return ERROR_INVALID_PARAMETER;
*str = value;
*str_len = len;
}
else
{
- if (len > (*str_len) - 1)
+ if (len >= *str_len)
{
- *str_len = len + 1;
- set_last_error( ERROR_INSUFFICIENT_BUFFER );
- return FALSE;
+ *str_len = len+1;
+ *overflow = TRUE;
+ return ERROR_SUCCESS;
}
memcpy( *str, value, len * sizeof(WCHAR) );
(*str)[len] = 0;
*str_len = len;
}
- return TRUE;
+ return ERROR_SUCCESS;
+}
+
+static WCHAR *decode_url( LPCWSTR url, DWORD *len )
+{
+ const WCHAR *p = url;
+ WCHAR hex[3], *q, *ret;
+
+ if (!(ret = heap_alloc( *len * sizeof(WCHAR) ))) return NULL;
+ q = ret;
+ while (*len > 0)
+ {
+ if (p[0] == '%' && isxdigitW( p[1] ) && isxdigitW( p[2] ))
+ {
+ hex[0] = p[1];
+ hex[1] = p[2];
+ hex[2] = 0;
+ *q++ = strtolW( hex, NULL, 16 );
+ p += 3;
+ *len -= 3;
+ }
+ else
+ {
+ *q++ = *p++;
+ *len -= 1;
+ }
+ }
+ *len = q - ret;
+ return ret;
+}
+
+static BOOL need_escape( WCHAR c )
+{
+ if (isalnumW( c )) return FALSE;
+
+ if (c <= 31 || c >= 127) return TRUE;
+ else
+ {
+ switch (c)
+ {
+ case ' ':
+ case '"':
+ case '#':
+ case '%':
+ case '<':
+ case '>':
+ case ']':
+ case '\\':
+ case '[':
+ case '^':
+ case '`':
+ case '{':
+ case '|':
+ case '}':
+ case '~':
+ return TRUE;
+ default:
+ return FALSE;
+ }
+ }
+}
+
+static DWORD copy_escape( WCHAR *dst, const WCHAR *src, DWORD len )
+{
+ static const WCHAR hex[] = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
+ DWORD ret = len;
+ unsigned int i;
+ WCHAR *p = dst;
+
+ for (i = 0; i < len; i++, p++)
+ {
+ if (need_escape( src[i] ))
+ {
+ p[0] = '%';
+ p[1] = hex[(src[i] >> 4) & 0xf];
+ p[2] = hex[src[i] & 0xf];
+ ret += 2;
+ p += 2;
+ }
+ else *p = src[i];
+ }
+ dst[ret] = 0;
+ return ret;
}
-static BOOL decode_url( LPCWSTR url, LPWSTR buffer, LPDWORD buflen )
+static WCHAR *escape_url( LPCWSTR url, DWORD *len )
{
- HRESULT hr = UrlCanonicalizeW( url, buffer, buflen, URL_WININET_COMPATIBILITY | URL_UNESCAPE );
- if (hr == E_POINTER) set_last_error( ERROR_INSUFFICIENT_BUFFER );
- if (hr == E_INVALIDARG) set_last_error( ERROR_INVALID_PARAMETER );
- return (SUCCEEDED(hr)) ? TRUE : FALSE;
+ WCHAR *ret;
+ const WCHAR *p, *q;
+
+ if ((p = q = strrchrW( url, '/' )))
+ {
+ while (*q)
+ {
+ if (need_escape( *q )) *len += 2;
+ q++;
+ }
+ }
+ if (!(ret = heap_alloc( (*len + 1) * sizeof(WCHAR) ))) return NULL;
+ if (!p) strcpyW( ret, url );
+ else
+ {
+ memcpy( ret, url, (p - url) * sizeof(WCHAR) );
+ copy_escape( ret + (p - url), p, q - p );
+ }
+ return ret;
+}
+
+static DWORD parse_port( const WCHAR *str, DWORD len, INTERNET_PORT *ret )
+{
+ const WCHAR *p = str;
+ DWORD port = 0;
+ while (len && isdigitW( *p ))
+ {
+ if ((port = port * 10 + *p - '0') > 65535) return ERROR_WINHTTP_INVALID_URL;
+ p++; len--;
+ }
+ *ret = port;
+ return ERROR_SUCCESS;
}
/***********************************************************************
*/
BOOL WINAPI WinHttpCrackUrl( LPCWSTR url, DWORD len, DWORD flags, LPURL_COMPONENTSW uc )
{
- BOOL ret = FALSE;
- WCHAR *p, *q, *r;
- WCHAR *url_decoded = NULL;
-
- TRACE("%s, %d, %x, %p\n", debugstr_w(url), len, flags, uc);
+ WCHAR *p, *q, *r, *url_decoded = NULL, *url_escaped = NULL;
+ INTERNET_SCHEME scheme = 0;
+ BOOL overflow = FALSE;
+ DWORD err;
- if (flags & ICU_ESCAPE) FIXME("flag ICU_ESCAPE not supported\n");
+ TRACE("%s, %d, %x, %p\n", debugstr_wn(url, len), len, flags, uc);
if (!url || !uc || uc->dwStructSize != sizeof(URL_COMPONENTS))
{
}
if (!len) len = strlenW( url );
- if (flags & ICU_DECODE)
+ if (flags & ICU_ESCAPE)
{
- WCHAR *url_tmp;
- DWORD url_len = len + 1;
-
- if (!(url_tmp = HeapAlloc( GetProcessHeap(), 0, url_len * sizeof(WCHAR) )))
+ if (!(url_escaped = escape_url( url, &len )))
{
set_last_error( ERROR_OUTOFMEMORY );
return FALSE;
}
- memcpy( url_tmp, url, len * sizeof(WCHAR) );
- url_tmp[len] = 0;
- if (!(url_decoded = HeapAlloc( GetProcessHeap(), 0, url_len * sizeof(WCHAR) )))
+ url = url_escaped;
+ }
+ else if (flags & ICU_DECODE)
+ {
+ if (!(url_decoded = decode_url( url, &len )))
{
- HeapFree( GetProcessHeap(), 0, url_tmp );
set_last_error( ERROR_OUTOFMEMORY );
return FALSE;
}
- if (decode_url( url_tmp, url_decoded, &url_len ))
- {
- len = url_len;
- url = url_decoded;
- }
- HeapFree( GetProcessHeap(), 0, url_tmp );
+ url = url_decoded;
}
if (!(p = strchrW( url, ':' )))
{
set_last_error( ERROR_WINHTTP_UNRECOGNIZED_SCHEME );
return FALSE;
}
- if (p - url == 4 && !strncmpiW( url, scheme_http, 4 )) uc->nScheme = INTERNET_SCHEME_HTTP;
- else if (p - url == 5 && !strncmpiW( url, scheme_https, 5 )) uc->nScheme = INTERNET_SCHEME_HTTPS;
+ if (p - url == 4 && !strncmpiW( url, scheme_http, 4 )) scheme = INTERNET_SCHEME_HTTP;
+ else if (p - url == 5 && !strncmpiW( url, scheme_https, 5 )) scheme = INTERNET_SCHEME_HTTPS;
else
{
- set_last_error( ERROR_WINHTTP_UNRECOGNIZED_SCHEME );
+ err = ERROR_WINHTTP_UNRECOGNIZED_SCHEME;
goto exit;
}
- if (!(set_component( &uc->lpszScheme, &uc->dwSchemeLength, (WCHAR *)url, p - url, flags ))) goto exit;
+
+ if ((err = set_component( &uc->lpszScheme, &uc->dwSchemeLength, (WCHAR *)url, p - url, flags, &overflow ))) goto exit;
p++; /* skip ':' */
- if (!p[0] || p[0] != '/' || p[1] != '/') goto exit;
+ if (!p[0] || p[0] != '/' || p[1] != '/')
+ {
+ err = ERROR_WINHTTP_INVALID_URL;
+ goto exit;
+ }
p += 2;
-
- if (!p[0]) goto exit;
+ if (!p[0])
+ {
+ err = ERROR_WINHTTP_INVALID_URL;
+ goto exit;
+ }
if ((q = memchrW( p, '@', len - (p - url) )) && !(memchrW( p, '/', q - p )))
{
if ((r = memchrW( p, ':', q - p )))
{
- if (!(set_component( &uc->lpszUserName, &uc->dwUserNameLength, p, r - p, flags ))) goto exit;
+ if ((err = set_component( &uc->lpszUserName, &uc->dwUserNameLength, p, r - p, flags, &overflow ))) goto exit;
r++;
- if (!(set_component( &uc->lpszPassword, &uc->dwPasswordLength, r, q - r, flags ))) goto exit;
+ if ((err = set_component( &uc->lpszPassword, &uc->dwPasswordLength, r, q - r, flags, &overflow ))) goto exit;
}
else
{
- if (!(set_component( &uc->lpszUserName, &uc->dwUserNameLength, p, q - p, flags ))) goto exit;
- if (!(set_component( &uc->lpszPassword, &uc->dwPasswordLength, NULL, 0, flags ))) goto exit;
+ if ((err = set_component( &uc->lpszUserName, &uc->dwUserNameLength, p, q - p, flags, &overflow ))) goto exit;
+ if ((err = set_component( &uc->lpszPassword, &uc->dwPasswordLength, NULL, 0, flags, &overflow ))) goto exit;
}
p = q + 1;
}
else
{
- if (!(set_component( &uc->lpszUserName, &uc->dwUserNameLength, NULL, 0, flags ))) goto exit;
- if (!(set_component( &uc->lpszPassword, &uc->dwPasswordLength, NULL, 0, flags ))) goto exit;
+ if ((err = set_component( &uc->lpszUserName, &uc->dwUserNameLength, NULL, 0, flags, &overflow ))) goto exit;
+ if ((err = set_component( &uc->lpszPassword, &uc->dwPasswordLength, NULL, 0, flags, &overflow ))) goto exit;
}
if ((q = memchrW( p, '/', len - (p - url) )))
{
if ((r = memchrW( p, ':', q - p )))
{
- if (!(set_component( &uc->lpszHostName, &uc->dwHostNameLength, p, r - p, flags ))) goto exit;
+ if ((err = set_component( &uc->lpszHostName, &uc->dwHostNameLength, p, r - p, flags, &overflow ))) goto exit;
r++;
- uc->nPort = atoiW( r );
+ if ((err = parse_port( r, q - r, &uc->nPort ))) goto exit;
}
else
{
- if (!(set_component( &uc->lpszHostName, &uc->dwHostNameLength, p, q - p, flags ))) goto exit;
- if (uc->nScheme == INTERNET_SCHEME_HTTP) uc->nPort = INTERNET_DEFAULT_HTTP_PORT;
- if (uc->nScheme == INTERNET_SCHEME_HTTPS) uc->nPort = INTERNET_DEFAULT_HTTPS_PORT;
+ if ((err = set_component( &uc->lpszHostName, &uc->dwHostNameLength, p, q - p, flags, &overflow ))) goto exit;
+ if (scheme == INTERNET_SCHEME_HTTP) uc->nPort = INTERNET_DEFAULT_HTTP_PORT;
+ if (scheme == INTERNET_SCHEME_HTTPS) uc->nPort = INTERNET_DEFAULT_HTTPS_PORT;
}
if ((r = memchrW( q, '?', len - (q - url) )))
{
- if (!(set_component( &uc->lpszUrlPath, &uc->dwUrlPathLength, q, r - q, flags ))) goto exit;
- if (!(set_component( &uc->lpszExtraInfo, &uc->dwExtraInfoLength, r, len - (r - url), flags ))) goto exit;
+ if ((err = set_component( &uc->lpszUrlPath, &uc->dwUrlPathLength, q, r - q, flags, &overflow ))) goto exit;
+ if ((err = set_component( &uc->lpszExtraInfo, &uc->dwExtraInfoLength, r, len - (r - url), flags, &overflow ))) goto exit;
}
else
{
- if (!(set_component( &uc->lpszUrlPath, &uc->dwUrlPathLength, q, len - (q - url), flags ))) goto exit;
- if (!(set_component( &uc->lpszExtraInfo, &uc->dwExtraInfoLength, (WCHAR *)url + len, 0, flags ))) goto exit;
+ if ((err = set_component( &uc->lpszUrlPath, &uc->dwUrlPathLength, q, len - (q - url), flags, &overflow ))) goto exit;
+ if ((err = set_component( &uc->lpszExtraInfo, &uc->dwExtraInfoLength, (WCHAR *)url + len, 0, flags, &overflow ))) goto exit;
}
}
else
{
if ((r = memchrW( p, ':', len - (p - url) )))
{
- if (!(set_component( &uc->lpszHostName, &uc->dwHostNameLength, p, r - p, flags ))) goto exit;
+ if ((err = set_component( &uc->lpszHostName, &uc->dwHostNameLength, p, r - p, flags, &overflow ))) goto exit;
r++;
- uc->nPort = atoiW( r );
+ if ((err = parse_port( r, len - (r - url), &uc->nPort ))) goto exit;
}
else
{
- if (!(set_component( &uc->lpszHostName, &uc->dwHostNameLength, p, len - (p - url), flags ))) goto exit;
- if (uc->nScheme == INTERNET_SCHEME_HTTP) uc->nPort = INTERNET_DEFAULT_HTTP_PORT;
- if (uc->nScheme == INTERNET_SCHEME_HTTPS) uc->nPort = INTERNET_DEFAULT_HTTPS_PORT;
+ if ((err = set_component( &uc->lpszHostName, &uc->dwHostNameLength, p, len - (p - url), flags, &overflow ))) goto exit;
+ if (scheme == INTERNET_SCHEME_HTTP) uc->nPort = INTERNET_DEFAULT_HTTP_PORT;
+ if (scheme == INTERNET_SCHEME_HTTPS) uc->nPort = INTERNET_DEFAULT_HTTPS_PORT;
}
- if (!(set_component( &uc->lpszUrlPath, &uc->dwUrlPathLength, (WCHAR *)url + len, 0, flags ))) goto exit;
- if (!(set_component( &uc->lpszExtraInfo, &uc->dwExtraInfoLength, (WCHAR *)url + len, 0, flags ))) goto exit;
+ if ((err = set_component( &uc->lpszUrlPath, &uc->dwUrlPathLength, (WCHAR *)url + len, 0, flags, &overflow ))) goto exit;
+ if ((err = set_component( &uc->lpszExtraInfo, &uc->dwExtraInfoLength, (WCHAR *)url + len, 0, flags, &overflow ))) goto exit;
}
- ret = TRUE;
-
- TRACE("scheme(%s) host(%s) port(%d) path(%s) extra(%s)\n",
- debugstr_wn( uc->lpszScheme, uc->dwSchemeLength ),
- debugstr_wn( uc->lpszHostName, uc->dwHostNameLength ),
- uc->nPort,
- debugstr_wn( uc->lpszUrlPath, uc->dwUrlPathLength ),
+ TRACE("scheme(%s) host(%s) port(%d) path(%s) extra(%s)\n", debugstr_wn( uc->lpszScheme, uc->dwSchemeLength ),
+ debugstr_wn( uc->lpszHostName, uc->dwHostNameLength ), uc->nPort, debugstr_wn( uc->lpszUrlPath, uc->dwUrlPathLength ),
debugstr_wn( uc->lpszExtraInfo, uc->dwExtraInfoLength ));
exit:
- HeapFree( GetProcessHeap(), 0, url_decoded );
- return ret;
+ if (!err)
+ {
+ if (overflow) err = ERROR_INSUFFICIENT_BUFFER;
+ uc->nScheme = scheme;
+ }
+ heap_free( url_decoded );
+ heap_free( url_escaped );
+ set_last_error( err );
+ return !err;
}
static INTERNET_SCHEME get_scheme( const WCHAR *scheme, DWORD len )
return FALSE;
}
-static BOOL need_escape( WCHAR c )
-{
- if (isalnumW( c )) return FALSE;
-
- if (c <= 31 || c >= 127) return TRUE;
- else
- {
- switch (c)
- {
- case ' ':
- case '"':
- case '#':
- case '%':
- case '<':
- case '>':
- case ']':
- case '\\':
- case '[':
- case '^':
- case '`':
- case '{':
- case '|':
- case '}':
- case '~':
- return TRUE;
- default:
- return FALSE;
- }
- }
-}
-
-static DWORD copy_escape( WCHAR *dst, const WCHAR *src, DWORD len )
-{
- static const WCHAR hex[] = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
- DWORD ret = len;
- unsigned int i;
- WCHAR *p = dst;
-
- for (i = 0; i < len; i++, p++)
- {
- if (need_escape( src[i] ))
- {
- p[0] = '%';
- p[1] = hex[(src[i] >> 4) & 0xf];
- p[2] = hex[src[i] & 0xf];
- ret += 2;
- p += 2;
- }
- else *p = src[i];
- }
- dst[ret] = 0;
- return ret;
-}
-
static DWORD comp_length( DWORD len, DWORD flags, WCHAR *comp )
{
DWORD ret;
{
WCHAR port[sizeof("65535")];
- sprintfW( port, formatW, uc->nPort );
- *len += strlenW( port );
+ *len += sprintfW( port, formatW, uc->nPort );
*len += 1; /* ":" */
}
if (uc->lpszUrlPath && *uc->lpszUrlPath != '/') *len += 1; /* '/' */
{
static const WCHAR formatW[] = {'%','u',0};
static const WCHAR twoslashW[] = {'/','/'};
-
DWORD len;
INTERNET_SCHEME scheme;
TRACE("%p, 0x%08x, %p, %p\n", uc, flags, url, required);
- if (!uc || uc->dwStructSize != sizeof(URL_COMPONENTS) || !required || !url)
+ if (!uc || uc->dwStructSize != sizeof(URL_COMPONENTS) || !required)
{
set_last_error( ERROR_INVALID_PARAMETER );
return FALSE;
set_last_error( ERROR_INSUFFICIENT_BUFFER );
return FALSE;
}
+ if (!url)
+ {
+ set_last_error( ERROR_INVALID_PARAMETER );
+ return FALSE;
+ }
url[0] = 0;
*required = len;
if (!uses_default_port( scheme, uc->nPort ))
{
- WCHAR port[sizeof("65535")];
-
- sprintfW( port, formatW, uc->nPort );
*url = ':';
url++;
- len = strlenW( port );
- memcpy( url, port, len * sizeof(WCHAR) );
- url += len;
+ url += sprintfW( url, formatW, uc->nPort );
}
/* add slash between hostname and path if necessary */
}
}
*url = 0;
+ set_last_error( ERROR_SUCCESS );
return TRUE;
}
projects / reactos.git / blobdiff