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-rw-r--r--src/lib/openjpip/target_manager.c345
1 files changed, 345 insertions, 0 deletions
diff --git a/src/lib/openjpip/target_manager.c b/src/lib/openjpip/target_manager.c
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+++ b/src/lib/openjpip/target_manager.c
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+/*
+ * $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( const 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( const 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( const 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( const char filepath[], char tmpfname[]);
+
+int open_jp2file( const 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( const 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*/
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