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trashbhuwan.c
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trashbhuwan.c
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//<------------------------------CLI Application for managing TRASH wrtitten in 'C'------------------------------------>
// author : @tribhuwan-kumar
// email : trashbhuwan@duck.com
//<-------------------------------------------------------------------------------------------------------------------->
#include <time.h>
#include <glob.h>
#include <stdio.h>
#include <stdlib.h>
#include <libgen.h>
#include <dirent.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <linux/limits.h>
#define YELLOW "\033[0;33m"
#define NC "\033[0m"
// USERNAME
const char* getUserName() {
const char *username = getenv("LOGNAME");
if (username == NULL) {
username = getenv("USER");
if (username == NULL) {
perror("Couldn't get the Username");
return NULL;
}
}
return username;
}
// MAKE PATH
char* getPath(const char* base, const char* suffix){
const char* username = getUserName();
if (username == NULL) {
return NULL;
}
size_t pathSize = strlen(base) + strlen(username) + strlen(suffix) + 1;
char* path = (char*)malloc(pathSize);
if (path == NULL) {
perror("Memory allocation error in 'getPath()'");
free(path);
exit(EXIT_FAILURE);
}
snprintf(path, pathSize, "%s%s%s", base, username, suffix);
return path;
}
// MANAGE REL PATH
char* getAbsolutePath(const char* relPath) {
char* absPath = malloc(PATH_MAX);
if (absPath == NULL) {
perror("Memory allocation failed in 'getAbsolutePath()'");
exit(EXIT_FAILURE);
}
if (relPath[0] == '/') {
strcpy(absPath, relPath);
}
else {
char cwd[PATH_MAX];
if (getcwd(cwd, sizeof(cwd)) == NULL) {
perror("Failed to get current working directory");
free(absPath);
exit(EXIT_FAILURE);
}
snprintf(absPath, PATH_MAX, "%s/%s", cwd, relPath);
}
return absPath;
}
// FORMATTING
void formatting(const char *fileSize, const char *paths, const char *fileName, int sizeWidth, int dirWidth) {
printf("%-*s %-*s %s\n", sizeWidth, fileSize, dirWidth, paths, fileName);
}
// MAX DIR WIDTH # its necessary to get maximum directory length first
int getMaxDirWidth(const char *trashFilesDir, const char *trashInfoDir){
int dirWidth;
int sizeWidth = 8;
DIR *dir;
struct dirent *entry;
if ((dir = opendir(trashFilesDir)) != NULL) {
while ((entry = readdir(dir)) != NULL) {
char *fileName = entry->d_name;
char trashInfoFileName[PATH_MAX];
snprintf(trashInfoFileName, PATH_MAX, "%s/%s.trashinfo", trashInfoDir, fileName);
struct stat info;
if (stat(trashInfoFileName, &info) == 0) {
if (S_ISREG(info.st_mode)) {
FILE *trashInfoFile = fopen(trashInfoFileName, "r");
if (trashInfoFile != NULL) {
char line[PATH_MAX];
while (fgets(line, PATH_MAX, trashInfoFile) != NULL) {
if (strncmp(line, "Path=", 5) == 0) {
char *originalPath = line + 5;
if (originalPath) {
if (originalPath) {
char originalDir[PATH_MAX];
snprintf(originalDir, sizeof(originalDir), "%s", dirname(originalPath));
if (strlen(originalDir) > dirWidth) {
dirWidth = strlen(originalDir);
}
}
}
}
}
fclose(trashInfoFile);
}
}
}
}
closedir(dir);
dirWidth += 8;
}
else {
perror("Error opening directory");
}
return dirWidth;
}
// LIST TRASHED FILEs
void listTrashedFiles(const char *trashFilesDir, const char *trashInfoDir) {
int sizeWidth = 8;
int dirWidth = getMaxDirWidth(trashFilesDir, trashInfoDir);
char fileSize[RTSIG_MAX];
DIR *dir;
struct dirent *entry;
if ((dir = opendir(trashFilesDir)) != NULL) {
while ((entry = readdir(dir)) != NULL) {
char *fileName = entry->d_name;
char trashInfoFilePath[PATH_MAX];
snprintf(trashInfoFilePath, PATH_MAX, "%s/%s.trashinfo", trashInfoDir, fileName);
struct stat info;
if (stat(trashInfoFilePath, &info) == 0 && (S_ISREG(info.st_mode))) {
FILE *trashInfoFile = fopen(trashInfoFilePath, "r");
if (trashInfoFile != NULL) {
char line[PATH_MAX];
while (fgets(line, PATH_MAX, trashInfoFile) != NULL) {
if (strncmp(line, "Path=", 5) == 0) {
char *originalPath = line + 5;
if (originalPath) {
// TRASHED FILE DIR AND NAME
char originalDir[PATH_MAX];
char *originalPathCopy = strdup(originalPath);
snprintf(originalDir, sizeof(originalDir), "%s", dirname(originalPath));
// TRASHED FILESIZE
if (strcmp(entry->d_name, ".") != 0 && strcmp(entry->d_name, "..") != 0) {
char trashFilePath[PATH_MAX];
snprintf(trashFilePath, sizeof(trashFilePath), "%s/%s", trashFilesDir, entry->d_name);
size_t commandSize = strlen(trashFilePath) + strlen("du -sh\"\" | cut -f1") + 2;
char* duTrashFilecommand = (char*)malloc(commandSize);
if (duTrashFilecommand == NULL) {
perror("Memory allocation failed");
exit(EXIT_FAILURE);
}
snprintf(duTrashFilecommand, commandSize, "du -sh \"%s\" | cut -f1", trashFilePath);
FILE *fp = popen(duTrashFilecommand, "r");
if (fp != NULL) {
if (fgets(fileSize, sizeof(fileSize), fp) != NULL) {
fileSize[strcspn(fileSize, "\n")] = '\0';
}
else {
perror("Failed to read total size");
}
pclose(fp);
}
else {
perror("Failed to run 'du'");
exit(EXIT_FAILURE);
}
free(duTrashFilecommand);
}
originalDir[strcspn(originalDir, "\n")] = '\0';
formatting(fileSize, originalDir, entry->d_name, sizeWidth, dirWidth);
}
}
}
fclose(trashInfoFile);
}
}
}
closedir(dir);
}
else {
perror("Error opening directory");
}
}
// CHECK EMPTY DIR
int isDirectoryEmpty(const char *path) {
DIR *dir = opendir(path);
if (dir == NULL) {
perror("Error opening directory");
exit(EXIT_FAILURE);
}
struct dirent *entry;
int isEmpty = 1;
while ((entry = readdir(dir)) != NULL) {
if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0) {
continue;
}
isEmpty = 0;
break;
}
closedir(dir);
return isEmpty;
}
// ASK FOR CONFIRMATION
int askConfirmation() {
printf("Are you sure you want to empty the trash? This action can't be undone. [y/N] ");
char response;
scanf("%c", &response);
if (response == 'y' || response == 'Y') {
return 1;
}
else {
exit(EXIT_SUCCESS);
}
}
// EMPTY THE TRASH
void emptyTrash(const char *trash_files_dir, const char *trash_info_dir) {
if (isDirectoryEmpty(trash_files_dir) && isDirectoryEmpty(trash_info_dir)) {
exit(EXIT_SUCCESS);
}
if (!askConfirmation()) {
exit(EXIT_SUCCESS);
}
DIR *dir = opendir(trash_files_dir);
if (dir == NULL) {
perror("Error in opening trash file directory");
exit(EXIT_FAILURE);
}
struct dirent *entry;
while ((entry = readdir(dir)) != NULL) {
if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0) {
continue;
}
char *filePath = malloc(PATH_MAX);
if (filePath == NULL) {
perror("Error allocating memory for file path");
exit(EXIT_FAILURE);
}
snprintf(filePath, PATH_MAX, "%s/%s", trash_files_dir, entry->d_name);
if (remove(filePath) != 0) {
if (rmdir(filePath) != 0) {
char deleteCommand[PATH_MAX + 10];
snprintf(deleteCommand, sizeof(deleteCommand), "rm -rf \"%s\"", filePath);
if (system(deleteCommand) != 0) {
perror("Error in deleting files");
}
}
}
free(filePath);
}
closedir(dir);
dir = opendir(trash_info_dir);
if (dir == NULL) {
perror("Error in opening trash info directory");
exit(EXIT_FAILURE);
}
while ((entry = readdir(dir)) != NULL) {
if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0) {
continue;
}
char filePath[PATH_MAX];
snprintf(filePath, PATH_MAX, "%s/%s", trash_info_dir, entry->d_name);
if (remove(filePath) != 0) {
perror("Error deleting file");
}
}
closedir(dir);
}
// CREATE TRASHINFO FILE
void createTrashInfo(const char *filePath) {
char *filePathCopy = strdup(filePath);
const char* username = getUserName();
const char* trashInfoDir = getPath("/home/", "/.local/share/Trash/info");
if (filePathCopy == NULL || username == NULL || trashInfoDir == NULL) {
perror("Something went wrong!");
exit(EXIT_FAILURE);
}
// GET TIME
time_t rawtime;
time(&rawtime);
char currentTime[30];
struct tm *timeinfo;
timeinfo = localtime(&rawtime);
char *baseName = basename(filePathCopy);
strftime(currentTime, sizeof(currentTime), "%Y-%m-%dT%H:%M:%S", timeinfo);
// CREATE '.trashinfo' FILE
size_t trashInfoFileNameCharSize = strlen(baseName) + strlen(".trashinfo") + 1;
char* trashInfoFileName = (char*)malloc(trashInfoFileNameCharSize);
sprintf(trashInfoFileName, "%s.trashinfo", baseName);
size_t trashInfoFilePathCharSize = strlen(trashInfoDir) + strlen(trashInfoFileName) + strlen(currentTime) + 2;
char* trashInfoFilePath = (char*)malloc(trashInfoFilePathCharSize);
if (!trashInfoFilePath) {
perror("Error in allocating memory for 'trashInfoFilePath'");
exit(EXIT_FAILURE);
}
sprintf(trashInfoFilePath, "%s/%s", trashInfoDir, trashInfoFileName);
if (access(trashInfoFilePath, F_OK) == 0) {
int counter = 1;
do {
sprintf(trashInfoFileName, "%s-%d.trashinfo", baseName, counter);
sprintf(trashInfoFilePath, "%s/%s", trashInfoDir, trashInfoFileName);
counter++;
}while (access(trashInfoFilePath, F_OK) == 0);
}
FILE *file = fopen(trashInfoFilePath, "w");
if (file == NULL) {
perror("Error in opening trash info file for write");
exit(EXIT_FAILURE);
}
if (ftell(file) == 0) {
fprintf(file, "[Trash Info]\n");
}
else {
fseek(file, 0, SEEK_END);
}
fprintf(file, "Path=%s\n", filePath);
fprintf(file, "DeletionDate=%s\n", currentTime);
fclose(file);
free(trashInfoFileName);
free(trashInfoFilePath);
}
// RESTORE TRASH
void restoreTrashedfile(const char *fileName) {
char filePath[PATH_MAX];
char infoFilePath[PATH_MAX];
char originalDirectory[PATH_MAX];
struct stat st = {0};
const char* trashFilesDir = getPath("/home/", "/.local/share/Trash/files");
const char* trashInfoDir = getPath("/home/", "/.local/share/Trash/info");
snprintf(filePath, sizeof(filePath), "%s/%s", trashFilesDir, fileName);
if (access(filePath, F_OK) != -1) {
snprintf(infoFilePath, sizeof(infoFilePath), "%s/%s.trashinfo", trashInfoDir, fileName);
glob_t globResult;
glob(infoFilePath, GLOB_TILDE, NULL, &globResult);
if (globResult.gl_pathc > 0) {
strcpy(infoFilePath, globResult.gl_pathv[0]);
FILE *infoFile = fopen(infoFilePath, "r");
if (infoFile) {
char line[PATH_MAX];
while (fgets(line, sizeof(line), infoFile)) {
if (strncmp(line, "Path=", 5) == 0) {
char *originalPath = line + 5;
originalPath[strcspn(originalPath, "\n")] = '\0';
char *originalPathCopy = strdup(originalPath);
strcpy(originalDirectory, dirname(originalPathCopy));
if (stat(originalDirectory, &st) == -1) {
if (mkdir(originalDirectory, 0700) == -1) {
perror( "Failed to create original directory\n");
exit(EXIT_FAILURE);
}
}
if (strncmp(originalPath, "/mnt", 4) == 0) {
char restoreFileCommand[PATH_MAX];
snprintf(restoreFileCommand, sizeof(restoreFileCommand), "mv \"%s\" \"%s\"", filePath, originalPath);
if (system(restoreFileCommand) == 0) {
if (access(infoFilePath, F_OK) == 0) {
remove(infoFilePath);
}
}
else {
fprintf(stderr,"Failed to restore %s\n", fileName);
}
}
if (strncmp(originalPath, "/mnt", 4) != 0) {
if (rename(filePath, originalPath) == 0) {
if (access(infoFilePath, F_OK) == 0) {
remove(infoFilePath);
}
}
else {
fprintf(stderr,"Failed to restore %s\n", fileName);
}
break;
}
}
}
fclose(infoFile);
}
globfree(&globResult);
}
else {
fprintf(stderr, "Couldn't find restoring destination for '%s'\n", fileName);
}
}
else {
fprintf(stderr, "Couldn't find '%s' in trash!!\n", fileName);
}
}
// RESTORE FILE ON DIFF DESTINATION
void restoreTrashedfileOnDest(const char *fileName, const char *destPath) {
char filePath[PATH_MAX];
char infoFilePath[PATH_MAX];
char fileDestPath[PATH_MAX];
const char* trashFilesDir = getPath("/home/", "/.local/share/Trash/files");
const char* trashInfoDir = getPath("/home/", "/.local/share/Trash/info");
snprintf(filePath, sizeof(filePath), "%s/%s", trashFilesDir, fileName);
snprintf(infoFilePath, sizeof(infoFilePath), "%s/%s.trashinfo", trashInfoDir, fileName);
if (access(filePath, F_OK) != -1) {
if (access(destPath, F_OK) != -1) {
snprintf(fileDestPath, sizeof(fileDestPath), "%s/%s", destPath, fileName);
if (strncmp(fileDestPath, "/mnt", 4) == 0) {
char restoreFileCommand[PATH_MAX];
snprintf(restoreFileCommand, sizeof(restoreFileCommand), "mv \"%s\" \"%s\"", filePath, fileDestPath);
if (system(restoreFileCommand) == 0) {
if (access(infoFilePath, F_OK) == 0) {
remove(infoFilePath);
}
}
else {
fprintf(stderr,"Failed to restore '%s'\n", fileName);
}
}
if (strncmp(fileDestPath, "/mnt", 4) != 0) {
if (rename(filePath, fileDestPath) == 0) {
if (access(infoFilePath, F_OK) == 0) {
remove(infoFilePath);
}
}
else {
fprintf(stderr,"Failed to restore '%s'\n", fileName);
}
}
}
else {
fprintf(stderr, "Not a valid destination '%s'\n", destPath);
}
}
else {
fprintf(stderr, "Couldn't find '%s' in trash!!\n", fileName);
}
}
// INDIVIDUALLY DELETE TRASHED FILE
void deleteTrashedFile(const char *fileName){
const char* trashFilesDir = getPath("/home/", "/.local/share/Trash/files");
const char* trashInfoDir = getPath("/home/", "/.local/share/Trash/info");
char trashedFilePath[PATH_MAX];
char trashInfoFilePath[PATH_MAX];
snprintf(trashedFilePath, sizeof(trashedFilePath), "%s/%s", trashFilesDir, fileName);
snprintf(trashInfoFilePath, sizeof(trashInfoFilePath), "%s/%s.trashinfo", trashInfoDir, fileName);
if (access(trashedFilePath, F_OK) == 0 && access(trashInfoFilePath, F_OK) == 0) {
if (remove(trashedFilePath) != 0) {
if (rmdir(trashedFilePath) != 0) {
char deleteCommand[PATH_MAX + 10];
snprintf(deleteCommand, sizeof(deleteCommand), "rm -rf \"%s\"", trashedFilePath);
if (system(deleteCommand) != 0) {
perror("Error in deleting file");
}
}
}
if (remove(trashInfoFilePath) != 0) {
perror("Error deleting file");
}
}
else {
fprintf(stderr, "'%s' not found in trash!!\n", basename(trashedFilePath));
}
}
// MAIN FUNCTION
int main(int argc, char *argv[]) {
const char* username = getUserName();
const char* trashFilesDir = getPath("/home/", "/.local/share/Trash/files");
const char* trashInfoDir = getPath("/home/", "/.local/share/Trash/info");
if (username == NULL || trashFilesDir == NULL || trashInfoDir == NULL) {
perror("Something went wrong");
return 1;
}
// NO ARGUEMENTs
if (argc == 1) {
char* printAsciiCommand = "curl -s https://raw.githubusercontent.com/tribhuwan-kumar/trashbhuwan/main/tests/ascii";
size_t printAsciiCommandSize = strlen(printAsciiCommand) + 1;
char* printAscii = (char*)malloc(printAsciiCommandSize);
snprintf(printAscii, printAsciiCommandSize, "%s", printAsciiCommand);
if (system(printAsciiCommand) != 0) {
free(printAscii);
exit(EXIT_FAILURE);
}
else {
free(printAscii);
return 0;
}
}
// LIST TRASH
else if (argc == 2 && (strcmp(argv[1], "--list") == 0 || strcmp(argv[1], "-ls") == 0 )) {
char totalSize[RTSIG_MAX];
const char *size = "SIZE";
const char *deleted_from = "DELETED FROM";
const char *files_dirs = "FILES & DIRS";
const char *total_size = "TOTAL SIZE";
const char *dash = "------------";
int sizeWidth = 8;
int dirWidth = getMaxDirWidth(trashFilesDir, trashInfoDir);
// GET TOTAL SIZE
size_t commandSize = strlen(trashFilesDir) + strlen("du -sh\"\" | cut -f1") + 2;
char* duTrashDircommand = (char*)malloc(commandSize);
if (duTrashDircommand == NULL) {
perror("Memory allocation failed");
exit(EXIT_FAILURE);
}
snprintf(duTrashDircommand, commandSize, "du -sh %s | cut -f1", trashFilesDir);
FILE *fp = popen(duTrashDircommand, "r");
if (fp != NULL) {
if (fgets(totalSize, sizeof(totalSize), fp) != NULL) {
totalSize[strcspn(totalSize, "\n")] = '\0';
}
else {
perror("Failed to read total size");
}
pclose(fp);
}
else {
perror("Failed to run 'du'");
exit(EXIT_FAILURE);
}
free(duTrashDircommand);
// FORMAT TRASH
if (isDirectoryEmpty(trashFilesDir) || isDirectoryEmpty(trashInfoDir)) {
printf("Trash is empty!!\n");
}
else {
printf("%s%-*s%s %s%-*s%s %s%-s%s\n", YELLOW, sizeWidth, size, NC, YELLOW, dirWidth, deleted_from, NC, YELLOW, files_dirs, NC);
listTrashedFiles(trashFilesDir, trashInfoDir);
printf("%s%-*s%s %s%-*s%s %s%-s%s\n", YELLOW, sizeWidth, totalSize, NC, YELLOW, dirWidth, total_size, NC, YELLOW, dash, NC);
}
}
// PUT FILEs IN TRASH
else if (argc >= 2 && (strcmp(argv[1], "--put") == 0 || strcmp(argv[1], "-p") == 0 )) {
if (argc == 2) {
printf("No input files were provided!!\n");
return 1;
}
for (int i = 2; i < argc; i++) {
char *fileNames = argv[i];
char *resolvedPath = getAbsolutePath(fileNames);
if (resolvedPath != NULL && access(resolvedPath, F_OK) != -1) {
char destPath[PATH_MAX];
snprintf(destPath, sizeof(destPath), "%s/%s", trashFilesDir, basename(resolvedPath));
if (access(destPath, F_OK) == 0) {
int counter = 1;
do {
snprintf(destPath, sizeof(destPath), "%s/%s-%d", trashFilesDir, basename(resolvedPath), counter);
counter++;
}while (access(destPath, F_OK) == 0);
}
if (strncmp(resolvedPath, "/mnt", 4) == 0) {
char putFileCommand[PATH_MAX];
snprintf(putFileCommand, sizeof(putFileCommand), "mv \"%s\" \"%s\"", resolvedPath, destPath);
if (system(putFileCommand) == 0) {
createTrashInfo(resolvedPath);
free(resolvedPath);
exit(EXIT_SUCCESS);
}
else {
perror("Failed to trashed file");
exit(EXIT_FAILURE);
}
}
else if (rename(resolvedPath, destPath) == 0) {
createTrashInfo(resolvedPath);
free(resolvedPath);
}
else {
perror("Failed to trashed file");
}
}
else {
fprintf(stderr, "'%s' doesn't exist!!\n", fileNames);
}
}
}
// INDIVIDUALLY DELETE TRASHED FILE
else if (argc >= 2 && (strcmp(argv[1], "--delete") == 0 || strcmp(argv[1], "-dl") == 0 )) {
if (argc == 2) {
printf("No input files were provided!!\n");
return 1;
}
for (int i = 2; i < argc; i++) {
char *fileNames = argv[i];
deleteTrashedFile(fileNames);
}
}
// RESTORE TRASH
else if (argc >= 2 && (strcmp(argv[1], "--restore") == 0 || strcmp(argv[1], "-r") == 0 )) {
if (argc == 2) {
printf("No input files were provided!!\n");
return 1;
}
for (int i = 2; i < argc; i++) {
char *fileNames = argv[i];
restoreTrashedfile(fileNames);
}
}
// RESTORE IN SPECIFIED DESTINATION
else if (argc >= 2 && (strcmp(argv[1], "--restore-dest") == 0 || strcmp(argv[1], "-rd") == 0 )) {
if (argc == 2) {
printf("No input files were provided!!\n");
return 1;
}
else if (argc == 3) {
printf("Please specify a destination path!!\n");
return 1;
}
char *destPath = argv[argc - 1];
for (int i = 2; i < argc - 1; i++) {
char *fileNames = argv[i];
restoreTrashedfileOnDest(fileNames, destPath);
}
}
// EMPTY TRASH
else if (argc == 2 && strcmp(argv[1], "--empty") == 0 || strcmp(argv[1], "-em") == 0) {
emptyTrash(trashFilesDir, trashInfoDir);
}
// HELP
else if (strcmp(argv[1], "-h") == 0) {
printf("Usage: trashbhuwan --put [FILE] [DIRECTORY]\n"
"Try 'trashbhuwan --help' for more information\n");
}
else if (strcmp(argv[1], "--help") == 0) {
printf("Usage: trashbhuwan [OPTION] [FILE]...\n"
"Trashing & Restoring files\n\n"
"Usage: trashbhuwan --put [FILE] [DIRECTORY]\n"
"Puts file and directory in trash\n\n"
"Available flags:\n"
" -p, --put Put files & directories in trash\n"
" -r, --restore Restore files & directories from trash\n"
" -rd, --restore-dest Restore files & directories to specific destination\n"
" -ls, --list List trashed files & directories along with disk usage\n"
" -dl, --delete Individually Delete trashed files & directories\n"
" -em, --empty Empty the trash\n"
"\nReport bugs to: <https://github.com/tribhuwan-kumar/trashbhuwan/issues>\n"
"'trashbhuwan' home page: <https://github.com/tribhuwan-kumar/trashbhuwan>\n"
"General more help: <https://github.com/tribhuwan-kumar/trashbhuwan#introduction>\n");
}
// INVALID ARGUEMENT
else {
printf("Invalid option: %s\n", argv[1]);
printf("Usage: [--list|-ls] [--put|-p] [--restore|-r] [--delete|-dl] [--empty|-em] [FILE]...[DIRECTORY]\n"
"Try 'trashbhuwan --help' for more information\n");
return 1;
}
return 0;
}