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Remove VarInt class

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This commit is contained in:
Omar Roth 2020-03-15 17:39:21 -04:00
parent 4011a113cc
commit 59a15ceef6
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1 changed files with 0 additions and 37 deletions
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37
src/invidious/helpers/utils.cr
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@ -325,43 +325,6 @@ def get_referer(env, fallback = "/", unroll = true)
return referer
end
struct VarInt
def self.from_io(io : IO, format = IO::ByteFormat::NetworkEndian) : Int32
result = 0_u32
num_read = 0
loop do
byte = io.read_byte
raise "Invalid VarInt" if !byte
value = byte & 0x7f
result |= value.to_u32 << (7 * num_read)
num_read += 1
break if byte & 0x80 == 0
raise "Invalid VarInt" if num_read > 5
end
result.to_i32
end
def self.to_io(io : IO, value : Int32)
io.write_byte 0x00 if value == 0x00
value = value.to_u32
while value != 0
byte = (value & 0x7f).to_u8
value >>= 7
if value != 0
byte |= 0x80
end
io.write_byte byte
end
end
end
def sha256(text)
digest = OpenSSL::Digest.new("SHA256")
digest << text