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share.cpp
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115 lines (103 loc) · 2.99 KB
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/**
* @file share.cpp
* @brief Classes for manipulating share credentials
*
* (c) 2013-2014 by Mega Limited, Auckland, 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/share.h"
namespace mega {
Share::Share(User* u, accesslevel_t a, m_time_t t, PendingContactRequest* pending)
{
user = u;
access = a;
ts = t;
this->pcr = pending;
}
void Share::serialize(string* d)
{
handle uh = user ? user->userhandle : 0;
char a = (char)access;
char version = 1;
handle ph = pcr!=NULL ? pcr->id : UNDEF;
d->append((char*)&uh, sizeof uh);
d->append((char*)&ts, sizeof ts);
d->append((char*)&a, 1);
d->append((char*)&version, 1);
d->append((char*)&ph, sizeof ph);
}
NewShare* Share::unserialize(int direction, handle h,
const byte* key, const char** ptr, const char* end)
{
if (*ptr + sizeof(handle) + sizeof(m_time_t) + 2 > end)
{
return nullptr;
}
char version_flag = (*ptr)[sizeof(handle) + sizeof(m_time_t) + 1];
handle ph = UNDEF;
if (version_flag >= 1)
{
// Pending flag exists
ph = MemAccess::get<handle>(*ptr + sizeof(handle) + sizeof(m_time_t) + 2);
}
auto newShare = new NewShare(h, direction, MemAccess::get<handle>(*ptr),
(accesslevel_t)(*ptr)[sizeof(handle) + sizeof(m_time_t)],
MemAccess::get<m_time_t>(*ptr + sizeof(handle)), key, NULL, ph);
*ptr += sizeof(handle) + sizeof(m_time_t) + 2;
if (version_flag >= 1)
{
*ptr += sizeof(handle);
}
return newShare;
}
void Share::update(accesslevel_t a, m_time_t t, PendingContactRequest* pending)
{
access = a;
ts = t;
pcr = pending;
}
// coutgoing: < 0 - don't authenticate, > 0 - authenticate using handle auth
NewShare::NewShare(handle ch, int coutgoing, handle cpeer, accesslevel_t caccess,
m_time_t cts, const byte* ckey, const byte* cauth, handle cpending,bool cupgrade_pending_to_full, bool okremoved)
{
h = ch;
outgoing = coutgoing;
peer = cpeer;
access = caccess;
ts = cts;
pending = cpending;
upgrade_pending_to_full = cupgrade_pending_to_full;
remove_key = okremoved;
if (ckey)
{
memcpy(key, ckey, sizeof key);
have_key = 1;
}
else
{
have_key = 0;
}
if ((outgoing > 0) && cauth)
{
memcpy(auth, cauth, sizeof auth);
have_auth = 1;
}
else
{
have_auth = 0;
}
}
} // namespace