86 lines
2.5 KiB
JavaScript
86 lines
2.5 KiB
JavaScript
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var g_wants_requests = {};
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ssb.registerConnectionsChanged(function(change, connection) {
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if (change == 'add') {
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connection.send_json({'name': ['createHistoryStream'], 'type': 'source', 'args': [{'id': connection.id, 'seq': 0}]}, function(message) {
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ssb.storeMessage(message.message);
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});
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connection.send_json({'name': ['blobs', 'createWants'], 'type': 'source', 'args': []}, function(message) {
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Object.keys(message.message).forEach(function(id) {
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if (message.message[id] < 0) {
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var blob = ssb.blobGet(id);
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if (blob) {
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var out_message = {};
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out_message[id] = blob.byteLength;
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g_wants_requests[connection.id].send_json(out_message);
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//connection.wants_request.send_json(out_message);
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}
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} else {
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debug_print("blobs.get", id);
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connection.send_json({'name': ['blobs', 'get'], 'type': 'source', 'args': [{'id': id}]}, function(message) {
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debug_print(id, '=>', debug_utf8Decode(message.message));
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ssb.blobStore(message.message);
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});
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}
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});
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});
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} else if (change == 'remove') {
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debug_print('REMOVE', connection.id);
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delete g_wants_requests[connection.id];
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} else {
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debug_print('CHANGE', change);
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}
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});
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ssb.registerRpc(['blobs', 'createWants'], function(request) {
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g_wants_requests[request.connection.id] = request;
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function blob_want_discovered(id) {
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debug_print('discovered', id);
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var message = {};
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message[id] = -1;
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request.send_json(message);
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}
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ssb.registerBlobWantAdded(blob_want_discovered);
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ssb.sqlStream(
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'SELECT id FROM blob_wants',
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[],
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row => blob_want_discovered(row.id));
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});
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ssb.registerRpc(['blobs', 'has'], function(request) {
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var found = false;
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ssb.sqlStream(
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'SELECT 1 FROM blobs where id = ?1',
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[request.args[0]],
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function(row) {
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found = true;
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});
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request.send_json(found);
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});
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ssb.registerRpc(['blobs', 'get'], function(request) {
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var blob = ssb.blobGet(request.args[0].id);
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request.send_binary(blob);
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});
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ssb.registerRpc(['createHistoryStream'], function(request) {
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var id = request.args[0].id;
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var seq = request.args[0].seq;
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ssb.sqlStream(
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'SELECT previous, sequence, timestamp, hash, content, signature FROM messages WHERE author = ?1 AND sequence >= ?2 ORDER BY sequence',
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[id, seq ?? 0],
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function(row) {
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var message = {
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'previous': row.previous,
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'author': id,
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'sequence': row.sequence,
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'timestamp': row.timestamp,
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'hash': row.hash,
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'content': JSON.parse(row.content),
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'signature': row.signature,
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};
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debug_print('sending1', JSON.stringify(message));
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request.send_json(message);
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});
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});
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