346 lines
8.8 KiB
C
346 lines
8.8 KiB
C
/*
|
|
* $Id: target_manager.c 44 2011-02-15 12:32:29Z kaori $
|
|
*
|
|
* Copyright (c) 2002-2011, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
|
|
* Copyright (c) 2002-2011, Professor Benoit Macq
|
|
* Copyright (c) 2010-2011, Kaori Hagihara
|
|
* 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.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <assert.h>
|
|
#ifdef _WIN32
|
|
#define snprintf _snprintf /* Visual Studio */
|
|
#include <io.h>
|
|
#else
|
|
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
#endif
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <time.h>
|
|
#include "target_manager.h"
|
|
|
|
#ifdef SERVER
|
|
#include <curl/curl.h>
|
|
#include "fcgi_stdio.h"
|
|
#define logstream FCGI_stdout
|
|
#else
|
|
#define FCGI_stdout stdout
|
|
#define FCGI_stderr stderr
|
|
#define logstream stderr
|
|
#endif /*SERVER*/
|
|
|
|
targetlist_param_t * gene_targetlist(void)
|
|
{
|
|
targetlist_param_t *targetlist;
|
|
|
|
targetlist = (targetlist_param_t *)malloc( sizeof(targetlist_param_t));
|
|
|
|
targetlist->first = NULL;
|
|
targetlist->last = NULL;
|
|
|
|
return targetlist;
|
|
}
|
|
|
|
|
|
/**
|
|
* open jp2 format image file
|
|
*
|
|
* @param[in] filepath file name (.jp2)
|
|
* @param[out] tmpfname new file name if filepath is a URL
|
|
* @return file descriptor
|
|
*/
|
|
int open_jp2file( char filepath[], char tmpfname[]);
|
|
|
|
target_param_t * gene_target( targetlist_param_t *targetlist, char *targetpath)
|
|
{
|
|
target_param_t *target;
|
|
int fd;
|
|
index_param_t *jp2idx;
|
|
char tmpfname[MAX_LENOFTID];
|
|
static int last_csn = 0;
|
|
|
|
if( targetpath[0]=='\0'){
|
|
fprintf( FCGI_stderr, "Error: exception, no targetpath in gene_target()\n");
|
|
return NULL;
|
|
}
|
|
|
|
if((fd = open_jp2file( targetpath, tmpfname)) == -1){
|
|
fprintf( FCGI_stdout, "Status: 404\r\n");
|
|
return NULL;
|
|
}
|
|
|
|
if( !(jp2idx = parse_jp2file( fd))){
|
|
fprintf( FCGI_stdout, "Status: 501\r\n");
|
|
return NULL;
|
|
}
|
|
|
|
target = (target_param_t *)malloc( sizeof(target_param_t));
|
|
snprintf( target->tid, MAX_LENOFTID, "%x-%x", (unsigned int)time(NULL), (unsigned int)rand());
|
|
target->targetname = strdup( targetpath);
|
|
target->fd = fd;
|
|
#ifdef SERVER
|
|
if( tmpfname[0])
|
|
target->tmpfname = strdup( tmpfname);
|
|
else
|
|
target->tmpfname = NULL;
|
|
#endif
|
|
target->csn = last_csn++;
|
|
target->codeidx = jp2idx;
|
|
target->num_of_use = 0;
|
|
target->jppstream = true;
|
|
target->jptstream = isJPTfeasible( *jp2idx);
|
|
target->next=NULL;
|
|
|
|
if( targetlist->first) /* there are one or more entries*/
|
|
targetlist->last->next = target;
|
|
else /* first entry*/
|
|
targetlist->first = target;
|
|
targetlist->last = target;
|
|
|
|
#ifndef SERVER
|
|
fprintf( logstream, "local log: target %s generated\n", targetpath);
|
|
#endif
|
|
|
|
return target;
|
|
}
|
|
|
|
void refer_target( target_param_t *reftarget, target_param_t **ptr)
|
|
{
|
|
*ptr = reftarget;
|
|
reftarget->num_of_use++;
|
|
}
|
|
|
|
void unrefer_target( target_param_t *target)
|
|
{
|
|
target->num_of_use--;
|
|
}
|
|
|
|
void delete_target( target_param_t **target)
|
|
{
|
|
close( (*target)->fd);
|
|
|
|
#ifdef SERVER
|
|
if( (*target)->tmpfname){
|
|
fprintf( FCGI_stderr, "Temporal file %s is deleted\n", (*target)->tmpfname);
|
|
remove( (*target)->tmpfname);
|
|
}
|
|
#endif
|
|
|
|
if( (*target)->codeidx)
|
|
delete_index ( &(*target)->codeidx);
|
|
|
|
#ifndef SERVER
|
|
fprintf( logstream, "local log: target: %s deleted\n", (*target)->targetname);
|
|
#endif
|
|
|
|
free( (*target)->targetname);
|
|
|
|
free(*target);
|
|
}
|
|
|
|
void delete_target_in_list( target_param_t **target, targetlist_param_t *targetlist)
|
|
{
|
|
target_param_t *ptr;
|
|
|
|
if( *target == targetlist->first)
|
|
targetlist->first = (*target)->next;
|
|
else{
|
|
ptr = targetlist->first;
|
|
while( ptr->next != *target){
|
|
ptr=ptr->next;
|
|
}
|
|
|
|
ptr->next = (*target)->next;
|
|
|
|
if( *target == targetlist->last)
|
|
targetlist->last = ptr;
|
|
}
|
|
delete_target( target);
|
|
}
|
|
|
|
void delete_targetlist(targetlist_param_t **targetlist)
|
|
{
|
|
target_param_t *targetPtr, *targetNext;
|
|
|
|
targetPtr = (*targetlist)->first;
|
|
while( targetPtr != NULL){
|
|
targetNext=targetPtr->next;
|
|
delete_target( &targetPtr);
|
|
targetPtr=targetNext;
|
|
}
|
|
free( *targetlist);
|
|
}
|
|
|
|
void print_target( target_param_t *target)
|
|
{
|
|
fprintf( logstream, "target:\n");
|
|
fprintf( logstream, "\t tid=%s\n", target->tid);
|
|
fprintf( logstream, "\t csn=%d\n", target->csn);
|
|
fprintf( logstream, "\t target=%s\n\n", target->targetname);
|
|
}
|
|
|
|
void print_alltarget( targetlist_param_t *targetlist)
|
|
{
|
|
target_param_t *ptr;
|
|
|
|
ptr = targetlist->first;
|
|
while( ptr != NULL){
|
|
print_target( ptr);
|
|
ptr=ptr->next;
|
|
}
|
|
}
|
|
|
|
target_param_t * search_target( char targetname[], targetlist_param_t *targetlist)
|
|
{
|
|
target_param_t *foundtarget;
|
|
|
|
foundtarget = targetlist->first;
|
|
|
|
while( foundtarget != NULL){
|
|
|
|
if( strcmp( targetname, foundtarget->targetname) == 0)
|
|
return foundtarget;
|
|
|
|
foundtarget = foundtarget->next;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
target_param_t * search_targetBytid( char tid[], targetlist_param_t *targetlist)
|
|
{
|
|
target_param_t *foundtarget;
|
|
|
|
foundtarget = targetlist->first;
|
|
|
|
while( foundtarget != NULL){
|
|
|
|
if( strcmp( tid, foundtarget->tid) == 0)
|
|
return foundtarget;
|
|
|
|
foundtarget = foundtarget->next;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
int open_remotefile( char filepath[], char tmpfname[]);
|
|
|
|
int open_jp2file( char filepath[], char tmpfname[])
|
|
{
|
|
int fd;
|
|
char *data;
|
|
|
|
/* download remote target file to local storage*/
|
|
if( strncmp( filepath, "http://", 7) == 0){
|
|
if( (fd = open_remotefile( filepath, tmpfname)) == -1)
|
|
return -1;
|
|
}
|
|
else{
|
|
tmpfname[0] = 0;
|
|
if( (fd = open( filepath, O_RDONLY)) == -1){
|
|
fprintf( FCGI_stdout, "Reason: Target %s not found\r\n", filepath);
|
|
return -1;
|
|
}
|
|
}
|
|
/* Check resource is a JP family file.*/
|
|
if( lseek( fd, 0, SEEK_SET)==-1){
|
|
close(fd);
|
|
fprintf( FCGI_stdout, "Reason: Target %s broken (lseek error)\r\n", filepath);
|
|
return -1;
|
|
}
|
|
|
|
data = (char *)malloc( 12); /* size of header*/
|
|
|
|
if( read( fd, data, 12) != 12){
|
|
free( data);
|
|
close(fd);
|
|
fprintf( FCGI_stdout, "Reason: Target %s broken (read error)\r\n", filepath);
|
|
return -1;
|
|
}
|
|
|
|
if( *data || *(data + 1) || *(data + 2) ||
|
|
*(data + 3) != 12 || strncmp (data + 4, "jP \r\n\x87\n", 8)){
|
|
free( data);
|
|
close(fd);
|
|
fprintf( FCGI_stdout, "Reason: No JPEG 2000 Signature box in target %s\r\n", filepath);
|
|
return -1;
|
|
}
|
|
|
|
free( data);
|
|
|
|
return fd;
|
|
}
|
|
|
|
#ifdef SERVER
|
|
static size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream);
|
|
#endif
|
|
|
|
int open_remotefile( char filepath[], char tmpfname[])
|
|
{
|
|
#ifndef SERVER
|
|
(void)filepath;
|
|
(void)tmpfname;
|
|
fprintf( FCGI_stderr, "Remote file can not be opened in local mode\n");
|
|
return -1;
|
|
|
|
#else
|
|
|
|
CURL *curl_handle;
|
|
int fd;
|
|
|
|
curl_handle = curl_easy_init();
|
|
curl_easy_setopt(curl_handle, CURLOPT_URL, filepath);
|
|
curl_easy_setopt(curl_handle, CURLOPT_NOPROGRESS, 1L);
|
|
curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, write_data);
|
|
|
|
snprintf( tmpfname, MAX_LENOFTID, "%x-%x.jp2", (unsigned int)time(NULL), (unsigned int)rand());
|
|
fprintf( FCGI_stderr, "%s is downloaded to a temporal new file %s\n", filepath, tmpfname);
|
|
if( (fd = open( tmpfname, O_RDWR|O_CREAT|O_EXCL, S_IRWXU)) == -1){
|
|
fprintf( FCGI_stdout, "Reason: File open error %s\r\n", tmpfname);
|
|
curl_easy_cleanup(curl_handle);
|
|
return -1;
|
|
}
|
|
curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, &fd);
|
|
curl_easy_perform(curl_handle);
|
|
curl_easy_cleanup(curl_handle);
|
|
|
|
return fd;
|
|
#endif /*SERVER*/
|
|
}
|
|
|
|
#ifdef SERVER
|
|
static size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream)
|
|
{
|
|
int *fd = (int *)stream;
|
|
ssize_t written = write( *fd, ptr, size*nmemb);
|
|
assert( written >= 0 );
|
|
|
|
return (size_t)written;
|
|
}
|
|
#endif /*SERVER*/
|