473 lines
14 KiB
C
473 lines
14 KiB
C
/*
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* $Id$
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*
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* Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
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* Copyright (c) 2002-2014, Professor Benoit Macq
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* Copyright (c) 2010-2011, Kaori Hagihara
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* Copyright (c) 2011, Lucian Corlaciu, GSoC
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef _WIN32
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#include <windows.h>
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#define strcasecmp _stricmp
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#define strncasecmp _strnicmp
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#else
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#include <strings.h>
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#endif
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#include <stdio.h>
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#include <assert.h>
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#include <string.h>
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#include <stdlib.h>
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#include "query_parser.h"
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#include "opj_stdint.h"
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#ifdef SERVER
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#include "fcgi_stdio.h"
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#define logstream FCGI_stdout
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#else
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#define FCGI_stdout stdout
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#define FCGI_stderr stderr
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#define logstream stderr
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#endif /*SERVER*/
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/**
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* Get initialized query parameters
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*
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* @return initial query parameters
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*/
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query_param_t * get_initquery(void);
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/*
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* get a pair of field name and value from the string starting fieldname=fieldval&... format
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*
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* @param[in] stringptr pointer to the beginning of the parsing string
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* @param[out] fieldname string to copy the field name, if not found, NULL
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* @param[out] fieldval string to copy the field value, if not found, NULL
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* @return pointer to the next field string, if there is none, NULL
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*/
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char * get_fieldparam(const char *stringptr, char *fieldname, char *fieldval);
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void parse_cclose(char *src, query_param_t *query_param);
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void parse_metareq(char *field, query_param_t *query_param);
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/* parse the requested components (parses forms like:a; a,b; a-b; a-b,c; a,b-c)*/
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void parse_comps(char *field, query_param_t *query_param);
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/** maximum length of field name*/
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#define MAX_LENOFFIELDNAME 10
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/** maximum length of field value*/
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#define MAX_LENOFFIELDVAL 128
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query_param_t * parse_query(const char *query_string)
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{
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query_param_t *query_param;
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const char *pquery;
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char fieldname[MAX_LENOFFIELDNAME], fieldval[MAX_LENOFFIELDVAL];
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query_param = get_initquery();
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pquery = query_string;
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while (pquery != NULL) {
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pquery = get_fieldparam(pquery, fieldname, fieldval);
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if (fieldname[0] != '\0') {
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if (strcasecmp(fieldname, "target") == 0) {
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query_param->target = strdup(fieldval);
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}
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else if (strcasecmp(fieldname, "tid") == 0) {
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query_param->tid = strdup(fieldval);
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}
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else if (strcasecmp(fieldname, "fsiz") == 0) {
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sscanf(fieldval, "%d,%d", &query_param->fx, &query_param->fy);
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}
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else if (strcasecmp(fieldname, "roff") == 0) {
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sscanf(fieldval, "%d,%d", &query_param->rx, &query_param->ry);
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}
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else if (strcasecmp(fieldname, "rsiz") == 0) {
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sscanf(fieldval, "%d,%d", &query_param->rw, &query_param->rh);
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}
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else if (strcasecmp(fieldname, "layers") == 0) {
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sscanf(fieldval, "%d", &query_param->layers);
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}
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else if (strcasecmp(fieldname, "cid") == 0) {
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query_param->cid = strdup(fieldval);
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}
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else if (strcasecmp(fieldname, "cnew") == 0) {
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if (strncasecmp(fieldval, "http-tcp", 8) == 0) {
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query_param->cnew = tcp;
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} else if (strncasecmp(fieldval, "http", 4) == 0) {
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query_param->cnew = http;
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}
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}
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else if (strcasecmp(fieldname, "cclose") == 0) {
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parse_cclose(fieldval, query_param);
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}
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else if (strcasecmp(fieldname, "metareq") == 0) {
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parse_metareq(fieldval, query_param);
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}
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else if (strcasecmp(fieldname, "comps") == 0) {
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parse_comps(fieldval, query_param);
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}
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else if (strcasecmp(fieldname, "type") == 0) {
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if (strncasecmp(fieldval, "jpp-stream", 10) == 0) {
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query_param->return_type = JPPstream;
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} else if (strncasecmp(fieldval, "jpt-stream", 10) == 0) {
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query_param->return_type = JPTstream;
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}
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}
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else if (strcasecmp(fieldname, "len") == 0) {
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sscanf(fieldval, "%d", &query_param->len);
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if (query_param->len == 2000) { /* for kakadu client*/
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strncpy(query_param->box_type[0], "ftyp", 4);
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}
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}
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}
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}
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return query_param;
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}
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query_param_t * get_initquery(void)
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{
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query_param_t *query;
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int i;
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query = (query_param_t *)opj_malloc(sizeof(query_param_t));
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query->target = NULL;
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query->tid = NULL;
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query->fx = -1;
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query->fy = -1;
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query->rx = -1;
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query->ry = -1;
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query->rw = -1;
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query->rh = -1;
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query->layers = -1;
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query->lastcomp = -1;
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query->comps = NULL;
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query->cid = NULL;
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query->cnew = non;
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query->cclose = NULL;
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query->numOfcclose = 0;
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memset(query->box_type, 0, MAX_NUMOFBOX * 4);
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memset(query->limit, 0, MAX_NUMOFBOX * sizeof(int));
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for (i = 0; i < MAX_NUMOFBOX; i++) {
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query->w[i] = OPJ_FALSE;
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query->s[i] = OPJ_FALSE;
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query->g[i] = OPJ_FALSE;
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query->a[i] = OPJ_FALSE;
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query->priority[i] = OPJ_FALSE;
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}
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query->root_bin = 0;
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query->max_depth = -1;
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query->metadata_only = OPJ_FALSE;
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query->return_type = UNKNOWN;
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query->len = -1;
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return query;
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}
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char * get_fieldparam(const char *stringptr, char *fieldname, char *fieldval)
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{
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char *eqp, *andp, *nexfieldptr;
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if ((eqp = strchr(stringptr, '=')) == NULL) {
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fprintf(stderr, "= not found\n");
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strcpy(fieldname, "");
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strcpy(fieldval, "");
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return NULL;
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}
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if ((andp = strchr(stringptr, '&')) == NULL) {
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andp = strchr(stringptr, '\0');
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nexfieldptr = NULL;
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} else {
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nexfieldptr = andp + 1;
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}
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assert((size_t)(eqp - stringptr));
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strncpy(fieldname, stringptr, (size_t)(eqp - stringptr));
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fieldname[eqp - stringptr] = '\0';
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assert(andp - eqp - 1 >= 0);
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strncpy(fieldval, eqp + 1, (size_t)(andp - eqp - 1));
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fieldval[andp - eqp - 1] = '\0';
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return nexfieldptr;
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}
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void print_queryparam(query_param_t query_param)
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{
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int i;
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char *cclose;
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fprintf(logstream, "query parameters:\n");
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if (query_param.target) {
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fprintf(logstream, "\t target: %s\n", query_param.target);
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}
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if (query_param.tid) {
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fprintf(logstream, "\t tid: %s\n", query_param.tid);
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}
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fprintf(logstream, "\t fx,fy: %d, %d\n", query_param.fx, query_param.fy);
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fprintf(logstream, "\t rx,ry: %d, %d \t rw,rh: %d, %d\n", query_param.rx,
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query_param.ry, query_param.rw, query_param.rh);
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fprintf(logstream, "\t layers: %d\n", query_param.layers);
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fprintf(logstream, "\t components: ");
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if (query_param.lastcomp == -1) {
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fprintf(logstream, "ALL\n");
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} else {
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for (i = 0; i <= query_param.lastcomp; i++)
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if (query_param.comps[i]) {
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fprintf(logstream, "%d ", i);
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}
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fprintf(logstream, "\n");
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}
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fprintf(logstream, "\t cnew: %d\n", query_param.cnew);
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if (query_param.cid) {
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fprintf(logstream, "\t cid: %s\n", query_param.cid);
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}
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if (query_param.cclose) {
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fprintf(logstream, "\t cclose: ");
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for (i = 0, cclose = query_param.cclose; i < query_param.numOfcclose; i++) {
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fprintf(logstream, "%s ", cclose);
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cclose += (strlen(cclose) + 1);
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}
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fprintf(logstream, "\n");
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}
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fprintf(logstream, "\t req-box-prop\n");
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for (i = 0; i < MAX_NUMOFBOX && query_param.box_type[i][0] != 0; i++) {
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fprintf(logstream,
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"\t\t box_type: %.4s limit: %d w:%d s:%d g:%d a:%d priority:%d\n",
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query_param.box_type[i], query_param.limit[i], query_param.w[i],
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query_param.s[i], query_param.g[i], query_param.a[i], query_param.priority[i]);
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}
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fprintf(logstream, "\t root-bin: %d\n", query_param.root_bin);
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fprintf(logstream, "\t max-depth: %d\n", query_param.max_depth);
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fprintf(logstream, "\t metadata-only: %d\n", query_param.metadata_only);
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fprintf(logstream,
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"\t image return type: %d, [JPP-stream=0, JPT-stream=1, UNKNOWN=-1]\n",
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query_param.return_type);
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fprintf(logstream, "\t len: %d\n", query_param.len);
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}
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void parse_cclose(char *src, query_param_t *query_param)
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{
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size_t i;
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size_t len;
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len = strlen(src);
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query_param->cclose = strdup(src);
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for (i = 0; i < len; i++)
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if (query_param->cclose[i] == ',') {
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query_param->cclose[i] = '\0';
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query_param->numOfcclose ++;
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}
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query_param->numOfcclose ++;
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}
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void parse_req_box_prop(char *req_box_prop, int idx,
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query_param_t *query_param);
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void parse_metareq(char *field, query_param_t *query_param)
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{
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char req_box_prop[20];
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char *ptr, *src;
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int numofboxreq = 0;
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memset(req_box_prop, 0, 20);
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/* req-box-prop*/
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ptr = strchr(field, '[');
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ptr++;
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src = ptr;
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while (*ptr != ']') {
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if (*ptr == ';') {
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assert(ptr - src >= 0);
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strncpy(req_box_prop, src, (size_t)(ptr - src));
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parse_req_box_prop(req_box_prop, numofboxreq++, query_param);
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ptr++;
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src = ptr;
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memset(req_box_prop, 0, 20);
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}
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ptr++;
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}
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assert(ptr - src >= 0);
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strncpy(req_box_prop, src, (size_t)(ptr - src));
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parse_req_box_prop(req_box_prop, numofboxreq++, query_param);
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if ((ptr = strchr(field, 'R'))) {
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sscanf(ptr + 1, "%d", &(query_param->root_bin));
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}
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if ((ptr = strchr(field, 'D'))) {
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sscanf(ptr + 1, "%d", &(query_param->max_depth));
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}
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if ((ptr = strstr(field, "!!"))) {
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query_param->metadata_only = OPJ_TRUE;
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}
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}
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void parse_req_box_prop(char *req_box_prop, int idx, query_param_t *query_param)
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{
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char *ptr;
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if (*req_box_prop == '*') {
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query_param->box_type[idx][0] = '*';
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} else {
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strncpy(query_param->box_type[idx], req_box_prop, 4);
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}
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if ((ptr = strchr(req_box_prop, ':'))) {
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if (*(ptr + 1) == 'r') {
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query_param->limit[idx] = -1;
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} else {
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sscanf(ptr + 1, "%d", &(query_param->limit[idx]));
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}
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}
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if ((ptr = strchr(req_box_prop, '/'))) {
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ptr++;
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while (*ptr == 'w' || *ptr == 's' || *ptr == 'g' || *ptr == 'a') {
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switch (*ptr) {
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case 'w':
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query_param->w[idx] = OPJ_TRUE;
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break;
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case 's':
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query_param->s[idx] = OPJ_TRUE;
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break;
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case 'g':
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query_param->g[idx] = OPJ_TRUE;
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break;
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case 'a':
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query_param->a[idx] = OPJ_TRUE;
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break;
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}
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ptr++;
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}
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} else {
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query_param->g[idx] = OPJ_TRUE;
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query_param->s[idx] = OPJ_TRUE;
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query_param->w[idx] = OPJ_TRUE;
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}
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if ((ptr = strchr(req_box_prop, '!'))) {
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query_param->priority[idx] = OPJ_TRUE;
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}
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idx++;
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}
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void parse_comps(char *field, query_param_t *query_param)
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{
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int i, start, stop, aux = -1;
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char *ptr1, *ptr2;
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ptr1 = strchr(field, '-');
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ptr2 = strchr(field, ',');
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if (ptr1 && ptr2)
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if (ptr1 > ptr2) {
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sscanf(field, "%d,%d-%d", &aux, &start, &stop);
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} else {
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sscanf(field, "%d-%d,%d", &start, &stop, &aux);
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} else if (ptr1) {
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sscanf(field, "%d-%d", &start, &stop);
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} else if (ptr2) {
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sscanf(field, "%d,%d", &start, &stop);
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aux = start;
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start = stop;
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} else {
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sscanf(field, "%d", &stop);
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start = stop;
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}
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query_param->lastcomp = stop > aux ? stop : aux;
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query_param->comps = (OPJ_BOOL *)opj_calloc(1,
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(OPJ_SIZE_T)(query_param->lastcomp + 1) * sizeof(OPJ_BOOL));
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for (i = start; i <= stop; i++) {
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query_param->comps[i] = OPJ_TRUE;
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}
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if (aux != -1) {
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query_param->comps[aux] = OPJ_TRUE;
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}
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}
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void delete_query(query_param_t **query)
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{
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if ((*query)->target) {
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opj_free((*query)->target);
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}
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if ((*query)->tid) {
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opj_free((*query)->tid);
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}
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if ((*query)->comps) {
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opj_free((*query)->comps);
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}
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if ((*query)->cid) {
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opj_free((*query)->cid);
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}
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if ((*query)->cclose) {
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opj_free((*query)->cclose);
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}
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opj_free(*query);
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}
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