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fileutils.cpp
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178 lines (154 loc) · 4.44 KB
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////////////////////////////////////////////////////////////////////////
// FILE: fileutils.cpp
// AUTHOR: Johannes Winkelmann, jw@tks6.net
// COPYRIGHT: (c) 2002-2005 by Johannes Winkelmann
// ---------------------------------------------------------------------
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
////////////////////////////////////////////////////////////////////////
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <dirent.h>
#include <iostream>
#include <cstring>
#include <algorithm>
#include "md5.h"
#include "httpup.h"
#include "fileutils.h"
using namespace std;
int FileUtils::deltree(const char* directory)
{
int ret = 0;
struct stat info;
if (stat(directory, &info)) {
// already removed
return 0;
}
if (!S_ISDIR(info.st_mode)) {
return unlink(directory);
}
DIR* dir = opendir(directory);
struct dirent* entry;
while ((entry = readdir(dir)) != 0) {
if (entry->d_name[0] == '.' &&
(entry->d_name[1] == '.' || entry->d_name[1] == '\0')) {
continue;
}
struct stat info;
string pathName = string(directory) + "/" + string(entry->d_name);
if (stat(pathName.c_str(), &info) != 0) {
cout << entry->d_name << endl;
return -1;
}
if (S_ISDIR(info.st_mode)) {
if (deltree(pathName.c_str())) {
ret = -1;
}
rmdir(pathName.c_str());
} else {
if (unlink(pathName.c_str())) {
ret = -1;
}
}
}
closedir(dir);
if (rmdir(directory)) {
ret = -1;
}
return ret;
}
int FileUtils::mktree(const string& directory)
{
int ret = 0;
size_t pos = 0;
string fName;
while ((pos = directory.find( '/', pos+1)) != string::npos ) {
fName = directory.substr(0, pos);
struct stat info;
if (stat(fName.c_str(), &info)) {
if (mkdir(fName.c_str(), 0755)) {
ret = -1;
}
}
}
return ret;
}
bool FileUtils::fmd5sum(const string& fileName, unsigned char* result)
{
struct md5_context ctx;
unsigned char buffer[1000];
FILE* f = fopen(fileName.c_str(), "r");
if (!f) {
return false;
}
md5_starts( &ctx );
int i = 0;
while( ( i = fread( buffer, 1, sizeof( buffer ), f ) ) > 0 ) {
md5_update( &ctx, buffer, i );
}
fclose(f);
md5_finish( &ctx, result );
return true;
}
void FileUtils::listFiles(const string& target)
{
list<string> files;
string newTarget = target;
if (newTarget != ".") {
if (newTarget[newTarget.length()-1] != '/') {
newTarget += "/";
}
}
string repoFile = newTarget + "/" + HttpUp::REPOCURRENTFILE;
FILE* fp = fopen(repoFile.c_str(), "r");
if (fp) {
char line[512];
while (fgets(line, 512, fp)) {
line[strlen(line)-1] = '\0';
files.push_back(line);
}
fclose(fp);
listFilesRec(newTarget, "", files);
} else {
cerr << "Failed to open " << repoFile << endl;
}
}
void FileUtils::listFilesRec(const string& base,
const string& offset,
list<string>& files)
{
string newOff = offset;
if (newOff.length() > 0) {
newOff += "/";
}
DIR* dir = opendir((base + newOff).c_str());
if (dir) {
struct dirent* d;
string name;
while ((d = readdir(dir))) {
name = d->d_name;
if (name == HttpUp::REPOCURRENTFILE ||
name == HttpUp::URLINFO ||
name == "." || name == "..") {
continue;
}
if (find(files.begin(), files.end(),
newOff + d->d_name) == files.end()) {
cout << "? ";
} else {
cout << "= ";
}
cout << newOff
<< d->d_name << endl;
struct stat buf;
if (stat(((base + newOff) + d->d_name).c_str(), &buf) == 0 &&
S_ISDIR(buf.st_mode)) {
listFilesRec(base, newOff + d->d_name, files);
}
}
closedir(dir);
}
}