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require "spec"
require "http/content"
describe HTTP::ChunkedContent do
it "delays reading the next chunk as soon as one is consumed (#3270)" do
mem = IO::Memory.new("4\r\n123\n\r\n0\r\n\r\n")
content = HTTP::ChunkedContent.new(mem)
bytes = uninitialized UInt8[4]
bytes_read = content.read(bytes.to_slice)
bytes_read.should eq(4)
String.new(bytes.to_slice).should eq("123\n")
mem.pos.should eq(7) # only this chunk was read
end
it "peeks" do
mem = IO::Memory.new("4\r\n123\n\r\n0\r\n\r\n")
content = HTTP::ChunkedContent.new(mem)
content.peek.should eq("123\n".to_slice)
content.skip(4)
content.peek.should eq Bytes.empty
end
it "peeks into next chunk" do
mem = IO::Memory.new("4\r\n123\n\r\n3\r\n456\r\n0\r\n\r\n")
content = HTTP::ChunkedContent.new(mem)
content.skip(4)
content.peek.should eq("456".to_slice)
content.gets_to_end.should eq("456")
end
it "skips" do
mem = IO::Memory.new("4\r\n123\n\r\n0\r\n\r\n")
content = HTTP::ChunkedContent.new(mem)
content.skip(2)
content.read_char.should eq('3')
expect_raises(IO::EOFError) do
content.skip(10)
end
end
it "skips (2)" do
mem = IO::Memory.new("4\r\n123\n\r\n0\r\n\r\n")
content = HTTP::ChunkedContent.new(mem)
content.skip(2)
content.gets_to_end.should eq("3\n")
end
it "skips (3)" do
mem = IO::Memory.new("4\r\n123\n\r\n3\r\n456\r\n0\r\n\r\n")
content = HTTP::ChunkedContent.new(mem)
content.skip(4)
content.gets_to_end.should eq("456")
end
it "#gets reads multiple chunks" do
mem = IO::Memory.new("1\r\nA\r\n1\r\nB\r\n0\r\n\r\n")
content = HTTP::ChunkedContent.new(mem)
content.gets.should eq "AB"
mem.pos.should eq mem.bytesize
end
it "#gets reads multiple chunks with \n" do
# The RFC format requires CRLF, but several standard implementations also
# accept LF, so we should too.
mem = IO::Memory.new("1\nA\n1\nB\n0\n\n")
content = HTTP::ChunkedContent.new(mem)
content.gets.should eq "AB"
mem.pos.should eq mem.bytesize
end
it "#read reads empty content" do
mem = IO::Memory.new("0\r\n\r\n")
content = HTTP::ChunkedContent.new(mem)
content.read(Bytes.new(5)).should eq 0
mem.pos.should eq mem.bytesize
end
it "#read_byte reads empty content" do
mem = IO::Memory.new("0\r\n\r\n")
content = HTTP::ChunkedContent.new(mem)
content.read_byte.should be_nil
mem.pos.should eq mem.bytesize
end
it "#peek reads empty content" do
mem = IO::Memory.new("0\r\n\r\n")
content = HTTP::ChunkedContent.new(mem)
content.peek.should eq Bytes.empty
mem.pos.should eq mem.bytesize
end
it "#read handles interrupted io" do
mem = IO::Memory.new("3\r\n123\r\n")
content = HTTP::ChunkedContent.new(mem)
content.skip(3)
expect_raises IO::EOFError do
content.read Bytes.new(5)
end
end
it "#read_byte handles interrupted io" do
mem = IO::Memory.new("3\r\n123\r\n")
content = HTTP::ChunkedContent.new(mem)
content.skip(3)
expect_raises IO::EOFError do
content.read_byte
end
end
it "#peek handles interrupted io" do
mem = IO::Memory.new("3\r\n123\r\n")
content = HTTP::ChunkedContent.new(mem)
content.skip(3)
expect_raises IO::EOFError do
content.peek
end
end
it "#read handles empty data" do
mem = IO::Memory.new("3\r\n")
content = HTTP::ChunkedContent.new(mem)
expect_raises IO::EOFError do
content.read Bytes.new(1)
end
end
it "#read_byte handles empty data" do
mem = IO::Memory.new("3\r\n")
content = HTTP::ChunkedContent.new(mem)
expect_raises IO::Error do
content.read_byte
end
end
it "#peek handles empty data" do
mem = IO::Memory.new("3\r\n")
content = HTTP::ChunkedContent.new(mem)
expect_raises IO::EOFError do
content.peek
end
end
it "handles empty io" do
mem = IO::Memory.new("")
chunked = HTTP::ChunkedContent.new(mem)
expect_raises IO::EOFError do
chunked.gets
end
end
it "reads chunk extensions" do
mem = IO::Memory.new(%(1;progress=50;foo="bar"\r\nA\r\n1;progress=100\r\nB\r\n0\r\n\r\n"))
chunked = HTTP::ChunkedContent.new(mem)
chunked.gets(2).should eq "AB"
end
it "reads chunked trailer part" do
mem = IO::Memory.new("0\r\nAdditional-Header: Foo\r\n\r\n")
chunked = HTTP::ChunkedContent.new(mem)
chunked.gets.should be_nil
mem.gets.should be_nil
chunked.headers.should eq HTTP::Headers{"Additional-Header" => "Foo"}
end
it "fails if unterminated chunked trailer part" do
mem = IO::Memory.new("0\r\nAdditional-Header: Foo")
chunked = HTTP::ChunkedContent.new(mem)
expect_raises IO::EOFError do
chunked.gets
end
end
describe "long trailer part" do
it "fails for long single header" do
mem = IO::Memory.new("0\r\nFoo: Bar Baz Qux\r\n\r\n")
chunked = HTTP::ChunkedContent.new(mem, max_headers_size: 12)
expect_raises(IO::Error, "Trailing headers too long") do
chunked.gets
end
chunked.headers.should be_empty
end
it "fails for long combined headers" do
mem = IO::Memory.new("0\r\nFoo: Bar\r\nBaz: Qux\r\n\r\n")
chunked = HTTP::ChunkedContent.new(mem, max_headers_size: 12)
expect_raises(IO::Error, "Trailing headers too long") do
chunked.gets
end
chunked.headers.should eq HTTP::Headers{"Foo" => "Bar"}
end
end
it "fails if not properly delimited" do
mem = IO::Memory.new("0\r\n")
chunked = HTTP::ChunkedContent.new(mem)
expect_raises IO::EOFError do
chunked.gets
end
end
it "fails if not properly delimited" do
mem = IO::Memory.new("1\r\nA\r\n0\r\n")
chunked = HTTP::ChunkedContent.new(mem)
expect_raises IO::EOFError do
chunked.gets
end
end
it "fails if invalid chunk size" do
mem = IO::Memory.new("G\r\n")
chunked = HTTP::ChunkedContent.new(mem)
expect_raises IO::Error, "Invalid HTTP chunked content: invalid chunk size" do
chunked.gets
end
end
it "#read stops reading after final chunk" do
mem = IO::Memory.new("0\r\n\r\n1\r\nA\r\n0\r\n\r\n")
chunked = HTTP::ChunkedContent.new(mem)
chunked.read(Bytes.new(8)).should eq 0
mem.pos.should eq 5
chunked.read(Bytes.new(8)).should eq 0
mem.pos.should eq 5
end
it "#read_byte stops reading after final chunk" do
mem = IO::Memory.new("0\r\n\r\n1\r\nA\r\n0\r\n\r\n")
chunked = HTTP::ChunkedContent.new(mem)
chunked.read_byte.should be_nil
mem.pos.should eq 5
chunked.read_byte.should be_nil
mem.pos.should eq 5
end
it "#peek stops reading after final chunk" do
mem = IO::Memory.new("0\r\n\r\n1\r\nA\r\n0\r\n\r\n")
chunked = HTTP::ChunkedContent.new(mem)
chunked.peek.should eq Bytes.empty
mem.pos.should eq 5
chunked.peek.should eq Bytes.empty
mem.pos.should eq 5
end
end
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