openjpeg/src/lib/openjpip/query_parser.c

473 lines
14 KiB
C
Raw Normal View History

/*
* $Id$
*
* Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2014, Professor Benoit Macq
* Copyright (c) 2010-2011, Kaori Hagihara
2011-09-30 17:31:06 +02:00
* Copyright (c) 2011, Lucian Corlaciu, GSoC
* 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 OWNER 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.
*/
#ifdef _WIN32
#include <windows.h>
#define strcasecmp _stricmp
#define strncasecmp _strnicmp
#else
#include <strings.h>
#endif
#include <stdio.h>
2012-03-26 16:50:14 +02:00
#include <assert.h>
#include <string.h>
2011-10-13 22:00:19 +02:00
#include <stdlib.h>
#include "query_parser.h"
2012-03-26 16:50:14 +02:00
#include "opj_stdint.h"
#ifdef SERVER
#include "fcgi_stdio.h"
#define logstream FCGI_stdout
#else
#define FCGI_stdout stdout
#define FCGI_stderr stderr
#define logstream stderr
#endif /*SERVER*/
/**
* Get initialized query parameters
*
* @return initial query parameters
*/
2012-03-26 16:50:14 +02:00
query_param_t * get_initquery(void);
/*
* get a pair of field name and value from the string starting fieldname=fieldval&... format
*
* @param[in] stringptr pointer to the beginning of the parsing string
* @param[out] fieldname string to copy the field name, if not found, NULL
* @param[out] fieldval string to copy the field value, if not found, NULL
* @return pointer to the next field string, if there is none, NULL
*/
char * get_fieldparam(const char *stringptr, char *fieldname, char *fieldval);
void parse_cclose(char *src, query_param_t *query_param);
void parse_metareq(char *field, query_param_t *query_param);
/* parse the requested components (parses forms like:a; a,b; a-b; a-b,c; a,b-c)*/
void parse_comps(char *field, query_param_t *query_param);
2011-09-30 17:31:06 +02:00
/** maximum length of field name*/
#define MAX_LENOFFIELDNAME 10
/** maximum length of field value*/
#define MAX_LENOFFIELDVAL 128
query_param_t * parse_query(const char *query_string)
{
query_param_t *query_param;
const char *pquery;
char fieldname[MAX_LENOFFIELDNAME], fieldval[MAX_LENOFFIELDVAL];
query_param = get_initquery();
pquery = query_string;
while (pquery != NULL) {
pquery = get_fieldparam(pquery, fieldname, fieldval);
if (fieldname[0] != '\0') {
if (strcasecmp(fieldname, "target") == 0) {
query_param->target = strdup(fieldval);
}
else if (strcasecmp(fieldname, "tid") == 0) {
query_param->tid = strdup(fieldval);
}
else if (strcasecmp(fieldname, "fsiz") == 0) {
sscanf(fieldval, "%d,%d", &query_param->fx, &query_param->fy);
}
else if (strcasecmp(fieldname, "roff") == 0) {
sscanf(fieldval, "%d,%d", &query_param->rx, &query_param->ry);
}
else if (strcasecmp(fieldname, "rsiz") == 0) {
sscanf(fieldval, "%d,%d", &query_param->rw, &query_param->rh);
}
else if (strcasecmp(fieldname, "layers") == 0) {
sscanf(fieldval, "%d", &query_param->layers);
}
else if (strcasecmp(fieldname, "cid") == 0) {
query_param->cid = strdup(fieldval);
}
else if (strcasecmp(fieldname, "cnew") == 0) {
if (strncasecmp(fieldval, "http-tcp", 8) == 0) {
query_param->cnew = tcp;
} else if (strncasecmp(fieldval, "http", 4) == 0) {
query_param->cnew = http;
}
}
else if (strcasecmp(fieldname, "cclose") == 0) {
parse_cclose(fieldval, query_param);
}
else if (strcasecmp(fieldname, "metareq") == 0) {
parse_metareq(fieldval, query_param);
}
else if (strcasecmp(fieldname, "comps") == 0) {
parse_comps(fieldval, query_param);
}
else if (strcasecmp(fieldname, "type") == 0) {
if (strncasecmp(fieldval, "jpp-stream", 10) == 0) {
query_param->return_type = JPPstream;
} else if (strncasecmp(fieldval, "jpt-stream", 10) == 0) {
query_param->return_type = JPTstream;
}
}
else if (strcasecmp(fieldname, "len") == 0) {
sscanf(fieldval, "%d", &query_param->len);
if (query_param->len == 2000) { /* for kakadu client*/
strncpy(query_param->box_type[0], "ftyp", 4);
}
}
}
}
return query_param;
}
2012-03-26 16:50:14 +02:00
query_param_t * get_initquery(void)
{
query_param_t *query;
int i;
query = (query_param_t *)opj_malloc(sizeof(query_param_t));
query->target = NULL;
query->tid = NULL;
query->fx = -1;
query->fy = -1;
query->rx = -1;
query->ry = -1;
query->rw = -1;
query->rh = -1;
query->layers = -1;
query->lastcomp = -1;
query->comps = NULL;
query->cid = NULL;
query->cnew = non;
query->cclose = NULL;
query->numOfcclose = 0;
memset(query->box_type, 0, MAX_NUMOFBOX * 4);
memset(query->limit, 0, MAX_NUMOFBOX * sizeof(int));
for (i = 0; i < MAX_NUMOFBOX; i++) {
query->w[i] = OPJ_FALSE;
query->s[i] = OPJ_FALSE;
query->g[i] = OPJ_FALSE;
query->a[i] = OPJ_FALSE;
query->priority[i] = OPJ_FALSE;
}
query->root_bin = 0;
query->max_depth = -1;
query->metadata_only = OPJ_FALSE;
query->return_type = UNKNOWN;
query->len = -1;
return query;
}
char * get_fieldparam(const char *stringptr, char *fieldname, char *fieldval)
{
char *eqp, *andp, *nexfieldptr;
if ((eqp = strchr(stringptr, '=')) == NULL) {
fprintf(stderr, "= not found\n");
strcpy(fieldname, "");
strcpy(fieldval, "");
return NULL;
}
if ((andp = strchr(stringptr, '&')) == NULL) {
andp = strchr(stringptr, '\0');
nexfieldptr = NULL;
} else {
nexfieldptr = andp + 1;
}
assert((size_t)(eqp - stringptr));
strncpy(fieldname, stringptr, (size_t)(eqp - stringptr));
fieldname[eqp - stringptr] = '\0';
assert(andp - eqp - 1 >= 0);
strncpy(fieldval, eqp + 1, (size_t)(andp - eqp - 1));
fieldval[andp - eqp - 1] = '\0';
return nexfieldptr;
}
void print_queryparam(query_param_t query_param)
{
int i;
char *cclose;
fprintf(logstream, "query parameters:\n");
if (query_param.target) {
fprintf(logstream, "\t target: %s\n", query_param.target);
}
if (query_param.tid) {
fprintf(logstream, "\t tid: %s\n", query_param.tid);
}
fprintf(logstream, "\t fx,fy: %d, %d\n", query_param.fx, query_param.fy);
fprintf(logstream, "\t rx,ry: %d, %d \t rw,rh: %d, %d\n", query_param.rx,
query_param.ry, query_param.rw, query_param.rh);
fprintf(logstream, "\t layers: %d\n", query_param.layers);
fprintf(logstream, "\t components: ");
if (query_param.lastcomp == -1) {
fprintf(logstream, "ALL\n");
} else {
for (i = 0; i <= query_param.lastcomp; i++)
if (query_param.comps[i]) {
fprintf(logstream, "%d ", i);
}
fprintf(logstream, "\n");
}
fprintf(logstream, "\t cnew: %d\n", query_param.cnew);
if (query_param.cid) {
fprintf(logstream, "\t cid: %s\n", query_param.cid);
}
if (query_param.cclose) {
fprintf(logstream, "\t cclose: ");
for (i = 0, cclose = query_param.cclose; i < query_param.numOfcclose; i++) {
fprintf(logstream, "%s ", cclose);
cclose += (strlen(cclose) + 1);
}
fprintf(logstream, "\n");
2012-03-02 11:46:04 +01:00
}
fprintf(logstream, "\t req-box-prop\n");
for (i = 0; i < MAX_NUMOFBOX && query_param.box_type[i][0] != 0; i++) {
fprintf(logstream,
"\t\t box_type: %.4s limit: %d w:%d s:%d g:%d a:%d priority:%d\n",
query_param.box_type[i], query_param.limit[i], query_param.w[i],
query_param.s[i], query_param.g[i], query_param.a[i], query_param.priority[i]);
}
fprintf(logstream, "\t root-bin: %d\n", query_param.root_bin);
fprintf(logstream, "\t max-depth: %d\n", query_param.max_depth);
fprintf(logstream, "\t metadata-only: %d\n", query_param.metadata_only);
fprintf(logstream,
"\t image return type: %d, [JPP-stream=0, JPT-stream=1, UNKNOWN=-1]\n",
query_param.return_type);
fprintf(logstream, "\t len: %d\n", query_param.len);
}
void parse_cclose(char *src, query_param_t *query_param)
{
size_t i;
size_t len;
len = strlen(src);
query_param->cclose = strdup(src);
for (i = 0; i < len; i++)
if (query_param->cclose[i] == ',') {
query_param->cclose[i] = '\0';
query_param->numOfcclose ++;
}
query_param->numOfcclose ++;
}
void parse_req_box_prop(char *req_box_prop, int idx,
query_param_t *query_param);
void parse_metareq(char *field, query_param_t *query_param)
{
char req_box_prop[20];
char *ptr, *src;
int numofboxreq = 0;
memset(req_box_prop, 0, 20);
/* req-box-prop*/
ptr = strchr(field, '[');
ptr++;
src = ptr;
while (*ptr != ']') {
if (*ptr == ';') {
assert(ptr - src >= 0);
strncpy(req_box_prop, src, (size_t)(ptr - src));
parse_req_box_prop(req_box_prop, numofboxreq++, query_param);
ptr++;
src = ptr;
memset(req_box_prop, 0, 20);
}
ptr++;
}
assert(ptr - src >= 0);
strncpy(req_box_prop, src, (size_t)(ptr - src));
parse_req_box_prop(req_box_prop, numofboxreq++, query_param);
if ((ptr = strchr(field, 'R'))) {
sscanf(ptr + 1, "%d", &(query_param->root_bin));
}
if ((ptr = strchr(field, 'D'))) {
sscanf(ptr + 1, "%d", &(query_param->max_depth));
}
if ((ptr = strstr(field, "!!"))) {
query_param->metadata_only = OPJ_TRUE;
}
}
void parse_req_box_prop(char *req_box_prop, int idx, query_param_t *query_param)
{
char *ptr;
if (*req_box_prop == '*') {
query_param->box_type[idx][0] = '*';
} else {
strncpy(query_param->box_type[idx], req_box_prop, 4);
}
if ((ptr = strchr(req_box_prop, ':'))) {
if (*(ptr + 1) == 'r') {
query_param->limit[idx] = -1;
} else {
sscanf(ptr + 1, "%d", &(query_param->limit[idx]));
}
}
if ((ptr = strchr(req_box_prop, '/'))) {
ptr++;
while (*ptr == 'w' || *ptr == 's' || *ptr == 'g' || *ptr == 'a') {
switch (*ptr) {
case 'w':
query_param->w[idx] = OPJ_TRUE;
break;
case 's':
query_param->s[idx] = OPJ_TRUE;
break;
case 'g':
query_param->g[idx] = OPJ_TRUE;
break;
case 'a':
query_param->a[idx] = OPJ_TRUE;
break;
}
ptr++;
}
} else {
query_param->g[idx] = OPJ_TRUE;
query_param->s[idx] = OPJ_TRUE;
query_param->w[idx] = OPJ_TRUE;
}
if ((ptr = strchr(req_box_prop, '!'))) {
query_param->priority[idx] = OPJ_TRUE;
}
idx++;
}
2011-09-30 17:31:06 +02:00
void parse_comps(char *field, query_param_t *query_param)
2011-09-30 17:31:06 +02:00
{
int i, start, stop, aux = -1;
char *ptr1, *ptr2;
ptr1 = strchr(field, '-');
ptr2 = strchr(field, ',');
if (ptr1 && ptr2)
if (ptr1 > ptr2) {
sscanf(field, "%d,%d-%d", &aux, &start, &stop);
} else {
sscanf(field, "%d-%d,%d", &start, &stop, &aux);
} else if (ptr1) {
sscanf(field, "%d-%d", &start, &stop);
} else if (ptr2) {
sscanf(field, "%d,%d", &start, &stop);
aux = start;
start = stop;
} else {
sscanf(field, "%d", &stop);
start = stop;
2011-09-30 17:31:06 +02:00
}
query_param->lastcomp = stop > aux ? stop : aux;
query_param->comps = (OPJ_BOOL *)opj_calloc(1,
(OPJ_SIZE_T)(query_param->lastcomp + 1) * sizeof(OPJ_BOOL));
for (i = start; i <= stop; i++) {
query_param->comps[i] = OPJ_TRUE;
}
if (aux != -1) {
query_param->comps[aux] = OPJ_TRUE;
2011-09-30 17:31:06 +02:00
}
}
void delete_query(query_param_t **query)
{
if ((*query)->target) {
opj_free((*query)->target);
}
if ((*query)->tid) {
opj_free((*query)->tid);
}
if ((*query)->comps) {
opj_free((*query)->comps);
}
if ((*query)->cid) {
opj_free((*query)->cid);
}
if ((*query)->cclose) {
opj_free((*query)->cclose);
}
opj_free(*query);
}