libidav/davql.h

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2015 Olaf Wintermann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include "webdav.h"

#ifndef DAVQL_H
#define	DAVQL_H

#include <ucx/string.h>
#include <ucx/list.h>
#include <inttypes.h>
#include <stdarg.h>

#ifdef	__cplusplus
extern "C" {
#endif

enum DavQueryType {
    DAV_QUERY_ERROR = 0,
    DAV_QUERY_GET
};
typedef enum DavQueryType DavQueryType;

#define DAVQOP_OPERATOR    0
#define DAVQOP_STRING      1
#define DAVQOP_INTEGER     2
#define DAVQOP_TIME        3
#define DAVQOP_PROPERTY    4
#define DAVQOP_RESPROP     5

typedef struct {
    int      type;
    void     *val;
    int64_t intval;
} DavQOp;
    
typedef struct {
    DavQueryType command;
    void         *command_data;
} DavQuery;

typedef struct {
    sstr_t properties;
    sstr_t from;
    DavQOp *condition;
    size_t condlen;
    int    depth;
} DavGetQuery;
    
DavQuery dav_ql_parse(char *query, va_list ap);
DavGetQuery* dav_ql_parse_get(sstr_t q, va_list ap);
void free_get_query(DavGetQuery *q);

int parse_path_query(sstr_t query, char **path, int *depth);

int dav_parse_with(sstr_t with, int *depth, va_list ap);
int dav_parse_condition(UcxList **ops, sstr_t cond, va_list ap);
sstr_t condition_parser_next_token(sstr_t *str);
int condition_operator_type(sstr_t token, int64_t *type);

int condition_eval(DavResource *res, DavQOp *cond, size_t len);
DavQOp compare_intint(int op, int64_t v1, int64_t v2);
DavQOp compare_strint(int op, DavQOp v1, DavQOp v2);
DavQOp compare_intstr(int op, DavQOp v1, DavQOp v2);
DavQOp compare_strstr(int op, DavQOp v1, DavQOp v2);

#ifdef	__cplusplus
}
#endif

#endif	/* DAVQL_H */