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getDeletedFile.c
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/
getDeletedFile.c
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <sys/stat.h>
#define DATE_SIZE 25
#define SERVER_FILE "/home/juan/Escritorio/.Server/.cvs"
#define SERVER_DELETE "/home/juan/Escritorio/.Server/.deletes"
#define SERVER_DELETE_AUX "/home/juan/Escritorio/.Server/.deletesaux"
#define SERVER_PATH "/home/juan/Escritorio/.Server/TP"
void copyFile(char * clientpath, char * serverpath);
int
main(int argc, char ** argv) {
FILE * client_file = fopen(".cvs","r+");
FILE * server_file = fopen(SERVER_FILE,"r+");
FILE * client_map = fopen(".map","r+");
FILE * server_deletes;
FILE * server_deletes_aux;
char client_date[DATE_SIZE];
char server_date[DATE_SIZE];
char * current_directory;
time_t current_time;
time_t client_time;
int version,server_inode,available = 0;
char buffer[100];
char path_server[500];
char path_client[500];
char file[50];
char * folders;
struct stat buf;
current_directory = getcwd(NULL,0);
time(¤t_time);
if(client_file == NULL) {
printf("There is no existing project in this folder\n");
exit(1);
}
if(server_file == NULL) {
printf("Couldn't connect to the server\n");
fclose(client_file);
fclose(client_map);
exit(1);
}
if(argc != 2) {
printf("Incorrect number of arguments\n");
fclose(client_file);
fclose(server_file);
fclose(client_map);
exit(1);
}
if(controlDates(client_date,server_date,&client_time)) {
printf("There is a newer version. Please update first\n");
fclose(client_file);
fclose(server_file);
fclose(client_map);
exit(1);
}
server_deletes = fopen(SERVER_DELETE,"r+");
while(!feof(server_deletes)) {
fscanf(server_deletes,"%d-%d-%s\n",&version,&server_inode,buffer);
if(strcmp(buffer,argv[1]) == 0) {
available = 1;
break;
}
}
if(available) {
server_deletes_aux = fopen(SERVER_DELETE_AUX,"w+");
fprintf(client_file,"%s",ctime(¤t_time));
fprintf(client_map,"%s",ctime(¤t_time));
fprintf(server_file,"%s",ctime(¤t_time));
strcpy(path_client,current_directory);
fseek(client_file,0L,SEEK_END);
fseek(client_map,0L,SEEK_END);
fseek(server_file,0L,SEEK_END);
folders = strtok(buffer,"/");
sprintf(path_client,"%s%s%s",path_client,"/",folders);
strcpy(file,folders);
mkdir(path_client, S_IRWXU | S_IRWXG | S_IRWXO);
while((folders = strtok(NULL,"/"))) {
sprintf(path_client,"%s%s%s",path_client,"/",folders);
mkdir(path_client,S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
strcpy(file,folders);
}
rmdir(path_client);
sprintf(path_server,"%s/%d/%s(%d)",SERVER_PATH,server_inode,file,version);
copyFile(argv[1],path_server);
stat(argv[1],&buf);
fprintf(client_file,"%s/%s\n",current_directory,argv[1]);
fprintf(client_map,"%d-%d-%d\n",version,server_inode,(int)buf.st_ino);
fprintf(server_file,"%d-%d-%s\n",server_inode,version,argv[1]);
fseek(server_deletes,0L,SEEK_SET);
while(!feof(server_deletes)) {
fscanf(server_deletes,"%d-%d-%s\n",&version,&server_inode,buffer);
if(strcmp(argv[1],buffer) != 0) {
fprintf(server_deletes_aux,"%d-%d-%s\n",version,server_inode,buffer);
}
}
fclose(server_deletes);
fclose(server_deletes_aux);
remove(SERVER_DELETE);
rename(SERVER_DELETE_AUX,SERVER_DELETE);
} else {
printf("The file is not on the current cvs, does not exist or is not deleted\n");
fclose(client_file);
fclose(client_map);
fclose(server_file);
exit(1);
}
fclose(client_file);
fclose(client_map);
fclose(server_file);
return 0;
}
int
controlDates(char * client_date, char * server_date,time_t * time) {
struct tm newServer_date;
struct tm newClient_date;
time_t server_time;
time_t client_time;
char server_day[4] = "\0";
char client_day[4] = "\0";
char server_mon[4] = "\0";
char client_mon[4] = "\0";
double diff;
strncpy(server_day,server_date,3);
strncpy(client_day,client_date,3);
strncpy(server_mon,server_date + 4,3);
strncpy(client_mon,client_date + 4,3);
newServer_date.tm_wday = getDay(server_day);
newClient_date.tm_wday = getDay(client_day);
newServer_date.tm_mon = getMonth(server_mon);
newClient_date.tm_mon = getMonth(client_mon);
newServer_date.tm_mday = atoi((&server_date[7]) + 1);
newClient_date.tm_mday = atoi((&client_date[7]) + 1);
newServer_date.tm_hour = atoi((&server_date[10]) + 1);
newClient_date.tm_hour = atoi((&client_date[10]) + 1);
newServer_date.tm_min = atoi((&server_date[13]) + 1);
newClient_date.tm_min = atoi((&client_date[13]) + 1);
newServer_date.tm_sec = atoi((&server_date[16]) + 1);
newClient_date.tm_sec = atoi((&client_date[16]) + 1);
newServer_date.tm_year = atoi((&server_date[17]) + 3) - 1900;
newClient_date.tm_year = atoi((&client_date[17]) + 3) - 1900;
newServer_date.tm_isdst = 0;
newClient_date.tm_isdst = 0;
server_time = mktime(&newServer_date);
client_time = mktime(&newClient_date);
*time = mktime(&newClient_date);
diff = difftime(server_time, client_time);
return diff > 0;
}
int
getDay(char * day) {
if(strcmp(day, "Sun") == 0) {
return 0;
} else if(strcmp(day, "Mon") == 0) {
return 1;
} else if(strcmp(day, "Tue") == 0) {
return 2;
} else if(strcmp(day, "Wed") == 0) {
return 3;
} else if(strcmp(day, "Thu") == 0) {
return 4;
} else if(strcmp(day, "Fri") == 0) {
return 5;
} else {
return 6;
}
}
int
getMonth(char * month) {
if(strcmp(month, "Jan") == 0) {
return 0;
} else if(strcmp(month, "Feb") == 0) {
return 1;
} else if(strcmp(month, "Mar") == 0) {
return 2;
} else if(strcmp(month, "Apr") == 0) {
return 3;
} else if(strcmp(month, "May") == 0) {
return 4;
} else if(strcmp(month, "Jun") == 0) {
return 5;
} else if(strcmp(month, "Jul") == 0){
return 6;
} else if(strcmp(month, "Aug") == 0) {
return 7;
} else if(strcmp(month, "Sep") == 0) {
return 8;
} else if(strcmp(month, "Oct") == 0) {
return 9;
} else if(strcmp(month, "Nov") == 0) {
return 10;
} else {
return 11;
}
}
void
copyFile(char * clientpath, char * serverpath) {
FILE * fileserver = fopen(serverpath,"r");
FILE * fileclient = fopen(clientpath,"w+");
int c;
while((c = fgetc(fileserver)) != EOF) {
fputc(c,fileclient);
}
fclose(fileserver);
fclose(fileclient);
}