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/**
* @file examples/megasimplesync.cpp
* @brief sample daemon, which synchronizes local and remote folders
*
* (c) 2013-2014 by Mega Limited, Wellsford, New Zealand
*
* This file is part of the MEGA SDK - Client Access Engine.
*
* Applications using the MEGA API must present a valid application key
* and comply with the the rules set forth in the Terms of Service.
*
* The MEGA SDK is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* @copyright Simplified (2-clause) BSD License.
*
* You should have received a copy of the license along with this
* program.
*/
#include "mega.h"
#ifdef _WIN32
#include <conio.h>
#endif
using namespace mega;
using std::cout;
using std::cerr;
using std::endl;
struct Login
{
string email, password, salt, pin;
int version;
Login() : version(0)
{
}
void reset()
{
*this = Login();
}
void login(MegaClient* client)
{
byte pwkey[SymmCipher::KEYLENGTH];
if (version == 1)
{
if (error e = client->pw_key(password.c_str(), pwkey))
{
cout << "Login error: " << e << endl;
}
else
{
client->login(email.c_str(), pwkey, pin.c_str());
}
}
else if (version == 2 && !salt.empty())
{
client->login2(email.c_str(), password.c_str(), &salt, pin.c_str());
}
else
{
cout << "Login unexpected error" << endl;
}
}
};
static Login login;
class SyncApp : public MegaApp, public Logger
{
string local_folder;
string remote_folder;
handle cwd;
bool initial_fetch;
void prelogin_result(int version, string* email, string *salt, error e);
void login_result(error e);
void fetchnodes_result(const Error& e);
void request_error(error e);
#ifdef ENABLE_SYNC
void syncupdate_state(Sync *, syncstate_t);
void syncupdate_local_folder_addition(Sync*, LocalNode*, const char *);
void syncupdate_local_folder_deletion(Sync*, LocalNode*);
void syncupdate_local_file_addition(Sync*, LocalNode*, const char *);
void syncupdate_local_file_deletion(Sync*, LocalNode*);
void syncupdate_local_file_change(Sync*, LocalNode*, const char *);
void syncupdate_local_move(Sync*, LocalNode*, const char*);
void syncupdate_get(Sync*, Node*, const char*);
void syncupdate_put(Sync*, LocalNode*, const char*);
void syncupdate_remote_file_addition(Sync*, Node*);
void syncupdate_remote_file_deletion(Sync*, Node*);
void syncupdate_remote_folder_addition(Sync*, Node*);
void syncupdate_remote_folder_deletion(Sync*, Node*);
void syncupdate_remote_copy(Sync*, const char*);
void syncupdate_remote_move(Sync*, Node*, Node*);
void syncupdate_remote_rename(Sync*sync, Node* n, const char* prevname);
void syncupdate_treestate(LocalNode*);
#endif
Node* nodebypath(const char* ptr, string* user, string* namepart);
public:
SyncApp(string local_folder_, string remote_folder_);
// Logger interface
public:
void log(const char *time, int loglevel, const char *source, const char *message
#ifdef ENABLE_LOG_PERFORMANCE
, const char **directMessages = nullptr, size_t *directMessagesSizes = nullptr, unsigned numberMessages = 0
#endif
);
};
// globals
MegaClient* client;
// returns node pointer determined by path relative to cwd
// Path naming conventions:
// path is relative to cwd
// /path is relative to ROOT
// //in is in INBOX
// //bin is in RUBBISH
// X: is user X's INBOX
// X:SHARE is share SHARE from user X
// : and / filename components, as well as the \, must be escaped by \.
// (correct UTF-8 encoding is assumed)
// returns NULL if path malformed or not found
Node* SyncApp::nodebypath(const char* ptr, string* user = NULL, string* namepart = NULL)
{
vector<string> c;
string s;
int l = 0;
const char* bptr = ptr;
int remote = 0;
Node* n = nullptr;
Node* nn;
// split path by / or :
do
{
if (!l)
{
if (*(const signed char*)ptr >= 0)
{
if (*ptr == '\\')
{
if (ptr > bptr)
{
s.append(bptr, ptr - bptr);
}
bptr = ++ptr;
if (*bptr == 0)
{
c.push_back(s);
break;
}
ptr++;
continue;
}
if (( *ptr == '/' ) || ( *ptr == ':' ) || !*ptr)
{
if (*ptr == ':')
{
if (c.size())
{
return NULL;
}
remote = 1;
}
if (ptr > bptr)
{
s.append(bptr, ptr - bptr);
}
bptr = ptr + 1;
c.push_back(s);
s.erase();
}
}
else if (( *ptr & 0xf0 ) == 0xe0)
{
l = 1;
}
else if (( *ptr & 0xf8 ) == 0xf0)
{
l = 2;
}
else if (( *ptr & 0xfc ) == 0xf8)
{
l = 3;
}
else if (( *ptr & 0xfe ) == 0xfc)
{
l = 4;
}
}
else
{
l--;
}
}
while (*ptr++);
if (l)
{
return NULL;
}
if (remote)
{
// target: user inbox - record username/email and return NULL
if (( c.size() == 2 ) && !c[1].size())
{
if (user)
{
*user = c[0];
}
return NULL;
}
User* u;
if (( u = client->finduser(c[0].c_str())))
{
// locate matching share from this user
handle_set::iterator sit;
string name;
for (sit = u->sharing.begin(); sit != u->sharing.end(); sit++)
{
if (( n = client->nodebyhandle(*sit)))
{
if(!name.size())
{
name = c[1];
n->client->fsaccess->normalize(&name);
}
if (!strcmp(name.c_str(), n->displayname()))
{
l = 2;
break;
}
}
}
}
if (!l)
{
return NULL;
}
}
else
{
// path starting with /
if (( c.size() > 1 ) && !c[0].size())
{
// path starting with //
if (( c.size() > 2 ) && !c[1].size())
{
if (c[2] == "in")
{
n = client->nodebyhandle(client->rootnodes[1]);
}
else if (c[2] == "bin")
{
n = client->nodebyhandle(client->rootnodes[2]);
}
else
{
return NULL;
}
l = 3;
}
else
{
n = client->nodebyhandle(client->rootnodes[0]);
l = 1;
}
}
else
{
n = client->nodebyhandle(cwd);
}
}
// parse relative path
while (n && l < (int)c.size())
{
if (c[l] != ".")
{
if (c[l] == "..")
{
if (n->parent)
{
n = n->parent;
}
}
else
{
// locate child node (explicit ambiguity resolution: not
// implemented)
if (c[l].size())
{
nn = client->childnodebyname(n, c[l].c_str());
if (!nn)
{
// mv command target? return name part of not found
if (namepart && ( l == (int)c.size() - 1 ))
{
*namepart = c[l];
return n;
}
return NULL;
}
n = nn;
}
}
}
l++;
}
return n;
}
SyncApp:: SyncApp(string local_folder_, string remote_folder_) :
local_folder(local_folder_), remote_folder(remote_folder_), cwd(UNDEF), initial_fetch(true)
{}
void SyncApp::log(const char *time, int loglevel, const char *source, const char *message
#ifdef ENABLE_LOG_PERFORMANCE
, const char **directMessages, size_t *directMessagesSizes, unsigned numberMessages
#endif
)
{
if (!time)
{
time = "";
}
if (!source)
{
source = "";
}
if (!message)
{
message = "";
}
cout << "[" << time << "][" << SimpleLogger::toStr((LogLevel)loglevel) << "] ";
if (message) cout << message;
#ifdef ENABLE_LOG_PERFORMANCE
for (unsigned i = 0; i < numberMessages; ++i) cout.write(directMessages[i], directMessagesSizes[i]);
#endif
cout << endl;
}
void SyncApp::prelogin_result(int version, std::string* email, std::string *salt, error e)
{
if (e)
{
cout << "Login error: " << e << endl;
return;
}
login.version = version;
login.salt = (version == 2 && salt ? *salt : string());
if (login.password.empty())
{
cerr << "invalid empty password" << endl;
}
else
{
login.login(client);
}
}
// this callback function is called when we have login result (success or
// error)
// TODO: check for errors
void SyncApp::login_result(error e)
{
if (e != API_OK)
{
LOG_err << "FATAL: Failed to get login result, exiting";
exit(1);
}
// get the list of nodes
client->fetchnodes();
}
void SyncApp::fetchnodes_result(const Error &e)
{
if (e != API_OK)
{
LOG_err << "FATAL: Failed to fetch remote nodes, exiting";
exit(1);
}
if (initial_fetch)
{
initial_fetch = false;
if (ISUNDEF(cwd))
{
cwd = client->rootnodes[0];
}
Node* n = nodebypath(remote_folder.c_str());
if (client->checkaccess(n, FULL))
{
if (!n)
{
LOG_err << remote_folder << ": Not found.";
exit(1);
}
else if (n->type == FILENODE)
{
LOG_err << remote_folder << ": Remote sync root must be folder.";
exit(1);
}
else
{
SyncConfig syncConfig{local_folder, n->nodehandle, 0};
error err = client->addsync(std::move(syncConfig), DEBRISFOLDER, NULL);
if (err)
{
LOG_err << "Sync could not be added! ";
exit(1);
}
LOG_info << "Sync started !";
}
}
else
{
LOG_err << remote_folder << ": Syncing requires full access to path.";
exit(1);
}
}
}
// this callback function is called when request-level error occurred
void SyncApp::request_error(error e)
{
LOG_err << "FATAL: Request failed, exiting";
exit(1);
}
#ifdef ENABLE_SYNC
void SyncApp::syncupdate_state(Sync*, syncstate_t state)
{
if (( state == SYNC_CANCELED ) || ( state == SYNC_FAILED ))
{
LOG_err << "FATAL: Sync failed !";
exit(1);
}
else if (state == SYNC_ACTIVE)
{
LOG_info << "Sync is now active";
}
}
// sync update callbacks are for informational purposes only and must not
// change or delete the sync itself
void SyncApp::syncupdate_local_folder_addition(Sync*, LocalNode *, const char* path)
{
LOG_info << "Sync - local folder addition detected: " << path;
}
void SyncApp::syncupdate_local_folder_deletion(Sync*, LocalNode *localNode)
{
LOG_info << "Sync - local folder deletion detected: " << localNode->name;
}
void SyncApp::syncupdate_local_file_addition(Sync*, LocalNode *, const char* path)
{
LOG_info << "Sync - local file addition detected: " << path;
}
void SyncApp::syncupdate_local_file_deletion(Sync*, LocalNode *localNode)
{
LOG_info << "Sync - local file deletion detected: " << localNode->name;
}
void SyncApp::syncupdate_local_file_change(Sync*, LocalNode *, const char* path)
{
LOG_info << "Sync - local file change detected: " << path;
}
void SyncApp::syncupdate_local_move(Sync*, LocalNode *localNode, const char* path)
{
LOG_info << "Sync - local rename/move " << localNode->name << " -> " << path;
}
void SyncApp::syncupdate_remote_move(Sync *, Node *n, Node *prevparent)
{
LOG_info << "Sync - remote move " << n->displayname() << ": " << (prevparent ? prevparent->displayname() : "?") <<
" -> " << (n->parent ? n->parent->displayname() : "?");
}
void SyncApp::syncupdate_remote_rename(Sync *, Node *n, const char *prevname)
{
LOG_info << "Sync - remote rename " << prevname << " -> " << n->displayname();
}
void SyncApp::syncupdate_remote_folder_addition(Sync *, Node* n)
{
LOG_info << "Sync - remote folder addition detected " << n->displayname();
}
void SyncApp::syncupdate_remote_file_addition(Sync*, Node* n)
{
LOG_info << "Sync - remote file addition detected " << n->displayname();
}
void SyncApp::syncupdate_remote_folder_deletion(Sync*, Node* n)
{
LOG_info << "Sync - remote folder deletion detected " << n->displayname();
}
void SyncApp::syncupdate_remote_file_deletion(Sync*, Node* n)
{
LOG_info << "Sync - remote file deletion detected " << n->displayname();
}
void SyncApp::syncupdate_get(Sync*, Node *, const char* path)
{
LOG_info << "Sync - requesting file " << path;
}
void SyncApp::syncupdate_put(Sync*, LocalNode*, const char* path)
{
LOG_info << "Sync - sending file " << path;
}
void SyncApp::syncupdate_remote_copy(Sync*, const char* name)
{
LOG_info << "Sync - creating remote file " << name << " by copying existing remote file";
}
static const char* treestatename(treestate_t ts)
{
switch (ts)
{
case TREESTATE_NONE:
return "None/Undefined";
case TREESTATE_SYNCED:
return "Synced";
case TREESTATE_PENDING:
return "Pending";
case TREESTATE_SYNCING:
return "Syncing";
}
return "UNKNOWN";
}
void SyncApp::syncupdate_treestate(LocalNode* l)
{
LOG_info << "Sync - state change of node " << l->name << " to " << treestatename(l->ts);
}
#endif
int main(int argc, char *argv[])
{
#ifndef ENABLE_SYNC
cerr << "Synchronization features are disabled" << endl;
return 1;
#endif
SyncApp *app;
// use logInfo level
SimpleLogger::setLogLevel(logInfo);
// set output to stdout
// SimpleLogger::setAllOutputs(&std::cout);
if (argc < 3)
{
cerr << "Usage: " << argv[0] << " [local folder] [remote folder]" << endl;
cerr << " (set MEGA_DEBUG to 1 or 2 to see debug output." << endl;
return 1;
}
app = new SyncApp(argv[1], argv[2]);
SimpleLogger::setOutputClass(app);
if (!getenv("MEGA_EMAIL") || !getenv("MEGA_PWD"))
{
LOG_info << "Please set both MEGA_EMAIL and MEGA_PWD env variables!";
return 1;
}
// create MegaClient, providing our custom MegaApp and Waiter classes
client = new MegaClient(app, new WAIT_CLASS, new HTTPIO_CLASS, new FSACCESS_CLASS,
#ifdef DBACCESS_CLASS
new DBACCESS_CLASS,
#else
NULL,
#endif
#ifdef GFX_CLASS
new GFX_CLASS,
#else
NULL,
#endif
"N9tSBJDC", "megasimplesync", 2);
// if MEGA_DEBUG env variable is set
if (getenv("MEGA_DEBUG"))
{
if (!strcmp(getenv("MEGA_DEBUG"), "1") || !strcmp(getenv("MEGA_DEBUG"), "2"))
{
SimpleLogger::setLogLevel(logDebug);
}
}
// uncomment this line if you want to follow symbolic links
//client->followsymlinks = true;
// get values from env
login.password = getenv("MEGA_PWD");
login.email = getenv("MEGA_EMAIL");
client->prelogin(login.email.c_str());
while (true)
{
// pass the CPU to the engine (nonblocking)
client->exec();
client->wait();
}
return 0;
}