try to estimate upload size
parent
6d30d7f89f
commit
5d37a50a87
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@ -7,6 +7,17 @@ define([
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var plainChunkLength = 128 * 1024;
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var cypherChunkLength = 131088;
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var computeEncryptedSize = function (bytes, meta) {
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var metasize = Nacl.util.decodeUTF8(meta).length + 18;
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var chunks = Math.ceil(bytes / plainChunkLength);
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console.log({
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metasize: metasize,
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chunks: chunks,
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bytes: bytes,
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});
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return metasize + (chunks * 16) + bytes;
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};
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var encodePrefix = function (p) {
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return [
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65280, // 255 << 8
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@ -159,6 +170,11 @@ define([
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var prefixed = new Uint8Array(encodePrefix(box.length)
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.concat(slice(box)));
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state++;
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// TODO verify that each box is the expected size
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console.log(part.length, prefixed.length);
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return void cb(void 0, prefixed);
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}
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@ -171,6 +187,8 @@ define([
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increment(nonce);
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i++;
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console.log(part.length, box.length);
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// regular data is done
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if (i * plainChunkLength >= u8.length) { state = 2; }
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@ -184,5 +202,6 @@ define([
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decrypt: decrypt,
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encrypt: encrypt,
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joinChunks: joinChunks,
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computeEncryptedSize: computeEncryptedSize,
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};
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});
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