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Tiny steps toward getting away from one global identity.

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git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@3932 ed5197a5-7fde-0310-b194-c3ffbd925b24
This commit is contained in:
Cory McWilliams
2022-07-14 01:01:14 +00:00
parent ae5560f33a
commit f764007fc6
6 changed files with 220 additions and 5 deletions
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91
src/ssb.db.c
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@ -7,6 +7,7 @@
#include <base64c.h>
#include <sodium/crypto_hash_sha256.h>
#include <sodium/crypto_sign.h>
#include <sqlite3.h>
#include <stdlib.h>
#include <string.h>
@ -69,6 +70,13 @@ void tf_ssb_db_init(tf_ssb_t* ssb)
" last_success INTEGER,"
" UNIQUE(host, port, key)"
")");
_tf_ssb_db_exec(db,
"CREATE TABLE IF NOT EXISTS identities ("
" user TEXT,"
" public_key TEXT UNIQUE,"
" private_key TEXT UNIQUE"
")");
_tf_ssb_db_exec(db, "CREATE INDEX IF NOT EXISTS identities_user ON identities (user, public_key)");
bool need_add_sequence_before_author = true;
bool need_convert_timestamp_to_real = false;
@ -690,3 +698,86 @@ bool tf_ssb_db_check(sqlite3* db, const char* check_author)
JS_FreeRuntime(runtime);
return false;
}
int tf_ssb_db_identity_get_count_for_user(tf_ssb_t* ssb, const char* user)
{
int count = 0;
sqlite3* db = tf_ssb_get_db(ssb);
sqlite3_stmt* statement = NULL;
if (sqlite3_prepare(db, "SELECT COUNT(*) FROM identities WHERE user = ?", -1, &statement, NULL) == SQLITE_OK)
{
if (sqlite3_bind_text(statement, 1, user, -1, NULL) == SQLITE_OK)
{
if (sqlite3_step(statement) == SQLITE_ROW)
{
count = sqlite3_column_int(statement, 0);
}
}
sqlite3_finalize(statement);
}
return count;
}
bool tf_ssb_db_identity_add(tf_ssb_t* ssb, const char* user, const char* public_key, const char* private_key)
{
bool added = false;
sqlite3* db = tf_ssb_get_db(ssb);
sqlite3_stmt* statement = NULL;
if (sqlite3_prepare(db, "INSERT INTO identities (user, public_key, private_key) VALUES (?, ?, ?) ON CONFLICT DO NOTHING", -1, &statement, NULL) == SQLITE_OK)
{
if (sqlite3_bind_text(statement, 1, user, -1, NULL) == SQLITE_OK &&
sqlite3_bind_text(statement, 2, public_key, -1, NULL) == SQLITE_OK &&
sqlite3_bind_text(statement, 3, private_key, -1, NULL) == SQLITE_OK)
{
added =
sqlite3_step(statement) == SQLITE_DONE &&
sqlite3_changes(db) != 0;
if (!added)
{
printf("Unable to add identity: %s.\n", sqlite3_errmsg(db));
}
}
sqlite3_finalize(statement);
}
return added;
}
void tf_ssb_db_identity_visit(tf_ssb_t* ssb, const char* user, void (*callback)(const char* identity, void* user_data), void* user_data)
{
sqlite3* db = tf_ssb_get_db(ssb);
sqlite3_stmt* statement = NULL;
if (sqlite3_prepare(db, "SELECT public_key FROM identities WHERE user = ? ORDER BY public_key", -1, &statement, NULL) == SQLITE_OK)
{
if (sqlite3_bind_text(statement, 1, user, -1, NULL) == SQLITE_OK)
{
while (sqlite3_step(statement) == SQLITE_ROW)
{
callback((const char*)sqlite3_column_text(statement, 0), user_data);
}
}
sqlite3_finalize(statement);
}
}
bool tf_ssb_db_identity_get_private_key(tf_ssb_t* ssb, const char* user, const char* public_key, uint8_t* out_private_key, size_t private_key_size)
{
bool success = false;
memset(out_private_key, 0, crypto_sign_SECRETKEYBYTES);
sqlite3* db = tf_ssb_get_db(ssb);
sqlite3_stmt* statement = NULL;
if (sqlite3_prepare(db, "SELECT private_key FROM identities WHERE user = ? AND public_key = ?", -1, &statement, NULL) == SQLITE_OK)
{
if (sqlite3_bind_text(statement, 1, user, -1, NULL) == SQLITE_OK &&
sqlite3_bind_text(statement, 2, (public_key && *public_key == '@') ? public_key + 1 : public_key, -1, NULL) == SQLITE_OK)
{
if (sqlite3_step(statement) == SQLITE_ROW)
{
const uint8_t* key = sqlite3_column_text(statement, 0);
int r = base64c_decode(key, sqlite3_column_bytes(statement, 0) - strlen(".ed25519"), out_private_key, private_key_size);
success = r > 0;
}
}
sqlite3_finalize(statement);
}
return success;
}