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keyring: pubring/secring identifiers

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This commit is contained in:
Mirek Kratochvil 2013-04-20 23:43:04 +02:00
parent fef4002138
commit c6278b8e54
1 changed files with 43 additions and 15 deletions
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58
src/keyring.cpp
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@ -66,10 +66,10 @@ std::string keyring::get_keyid (const std::string&pubkey)
* Public key file is organized as follows:
*
* (
* "ccr public key storage"
* ( "key-name" pubkey_in_string_encoded_as_sencode )
* ( "key-name" pubkey_in_... )
* ( "key-name" pubkey )
* "CCR-PUBKEYS"
* ( "key-name" "algorithm-id" pubkey_in_string_encoded_as_sencode )
* ( "key-name" "algorithm-id" pubkey_in_... )
* ( "key-name" "algorithm-id" pubkey )
* ...
* )
*
@ -81,10 +81,10 @@ std::string keyring::get_keyid (const std::string&pubkey)
* to be generated everytime user asks for them:
*
* (
* "ccr private keyring"
* ( "key-name" privkey pubkey )
* ( "key-name" privkey pubkey )
* ( "key-name" privkey pubkey )
* "CCR-KEYPAIRS"
* ( "key-name" "algorithm-id" privkey pubkey )
* ( "key-name" "algorithm-id" privkey pubkey )
* ( "key-name" "algorithm-id" privkey pubkey )
* ...
* )
*
@ -92,6 +92,9 @@ std::string keyring::get_keyid (const std::string&pubkey)
* Serialization stuff first.
*/
#define KEYPAIRS_ID "CCR-KEYPAIRS"
#define PUBKEYS_ID "CCR-PUBKEYS"
void keyring::clear_keypairs (keypair_storage&pairs)
{
for (std::map<std::string, keypair_entry>::iterator
@ -112,13 +115,21 @@ void keyring::clear_pubkeys (pubkey_storage&pubs)
bool keyring::parse_keypairs (sencode*keypairs, keypair_storage&pairs)
{
sencode_bytes *ID;
sencode_list *L;
clear_keypairs (pairs);
sencode_list *L = dynamic_cast<sencode_list*> (keypairs);
L = dynamic_cast<sencode_list*> (keypairs);
if (!L) goto failure;
if (!L->items.size() ) goto failure;
ID = dynamic_cast<sencode_bytes*> (L->items[0]);
if (!ID) goto failure;
if (ID->b != KEYPAIRS_ID) goto failure;
for (std::vector<sencode*>::iterator
i = L->items.begin(), e = L->items.end();
i = L->items.begin() + 1, e = L->items.end();
i != e; ++i) {
sencode_list*entry = dynamic_cast<sencode_list*> (*i);
@ -156,6 +167,8 @@ failure:
sencode* keyring::serialize_keypairs (const keypair_storage&pairs)
{
sencode_list*L = new sencode_list();
L->items.push_back (new sencode_bytes (KEYPAIRS_ID) );
for (keypair_storage::const_iterator
i = pairs.begin(), e = pairs.end();
i != e; ++i) {
@ -172,13 +185,21 @@ sencode* keyring::serialize_keypairs (const keypair_storage&pairs)
bool keyring::parse_pubkeys (sencode* pubkeys, pubkey_storage&pubs)
{
sencode_bytes *ID;
sencode_list *L;
clear_pubkeys (pubs);
sencode_list* L = dynamic_cast<sencode_list*> (pubkeys);
L = dynamic_cast<sencode_list*> (pubkeys);
if (!L) goto failure;
if (!L->items.size() ) goto failure;
ID = dynamic_cast<sencode_bytes*> (L->items[0]);
if (!ID) goto failure;
if (ID->b != PUBKEYS_ID) goto failure;
for (std::vector<sencode*>::iterator
i = L->items.begin(), e = L->items.end();
i = L->items.begin() + 1, e = L->items.end();
i != e; ++i) {
sencode_list*entry = dynamic_cast<sencode_list*> (*i);
@ -210,6 +231,8 @@ failure:
sencode* keyring::serialize_pubkeys (const pubkey_storage&pubs)
{
sencode_list*L = new sencode_list();
L->items.push_back (new sencode_bytes (PUBKEYS_ID) );
for (pubkey_storage::const_iterator
i = pubs.begin(), e = pubs.end();
i != e; ++i) {
@ -257,7 +280,8 @@ static std::string get_user_dir()
* We try to setup file permissions properly here and don't care about it later
* (so that the user can override the default value by easy unixy way)
*/
static bool ensure_empty_sencode_file (const std::string&fn)
static bool ensure_empty_sencode_file (const std::string&fn,
const std::string&ident)
{
struct stat st;
if (stat (fn.c_str(), &st) ) {
@ -266,6 +290,8 @@ static bool ensure_empty_sencode_file (const std::string&fn)
//if it simply doesn't exist, create it
sencode_list l;
sencode_bytes b (ident);
l.items.push_back (&b);
std::string emptyfile = l.encode();
int fd, res;
@ -302,8 +328,10 @@ static bool prepare_user_dir (const std::string&dir)
return false;
//finally create empty key storages, if not present
return ensure_empty_sencode_file (dir + PUBKEYS_FILENAME) &&
ensure_empty_sencode_file (dir + SECRETS_FILENAME);
return ensure_empty_sencode_file (dir + PUBKEYS_FILENAME,
PUBKEYS_ID) &&
ensure_empty_sencode_file (dir + SECRETS_FILENAME,
KEYPAIRS_ID);
}
static sencode* file_get_sencode (const std::string&fn)