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|
defmodule AttachmentMultipartTest do
use CouchTestCase
@moduletag :attachments
@moduledoc """
Test CouchDB attachment multipart requests
This is a port of the attachments_multipart.js suite
"""
@tag :with_db
test "manages attachments multipart requests successfully", context do
db_name = context[:db_name]
document = """
{
"body": "This is a body.",
"_attachments": {
"foo.txt": {
"follows": true,
"content_type": "application/test",
"length": 21
},
"bar.txt": {
"follows": true,
"content_type": "application/test",
"length": 20
},
"baz.txt": {
"follows": true,
"content_type": "text/plain",
"length": 19
}
}
}
"""
multipart_data =
"--abc123\r\n" <>
"content-type: application/json\r\n" <>
"\r\n" <>
document <>
"\r\n--abc123\r\n" <>
"\r\n" <>
"this is 21 chars long" <>
"\r\n--abc123\r\n" <>
"\r\n" <>
"this is 20 chars lon" <>
"\r\n--abc123\r\n" <> "\r\n" <> "this is 19 chars lo" <> "\r\n--abc123--epilogue"
resp =
Couch.put(
"/#{db_name}/multipart",
body: multipart_data,
headers: ["Content-Type": "multipart/related;boundary=\"abc123\""]
)
assert resp.status_code in [201, 202]
assert resp.body["ok"] == true
resp = Couch.get("/#{db_name}/multipart/foo.txt")
assert resp.body == "this is 21 chars long"
resp = Couch.get("/#{db_name}/multipart/bar.txt")
assert resp.body == "this is 20 chars lon"
resp = Couch.get("/#{db_name}/multipart/baz.txt")
assert resp.body == "this is 19 chars lo"
doc = Couch.get("/#{db_name}/multipart", query: %{att_encoding_info: true})
first_rev = doc.body["_rev"]
assert doc.body["_attachments"]["foo.txt"]["stub"] == true
assert doc.body["_attachments"]["bar.txt"]["stub"] == true
assert doc.body["_attachments"]["baz.txt"]["stub"] == true
assert Map.has_key?(doc.body["_attachments"]["foo.txt"], "encoding") == false
assert Map.has_key?(doc.body["_attachments"]["bar.txt"], "encoding") == false
assert doc.body["_attachments"]["baz.txt"]["encoding"] == "gzip"
document_updated = """
{
"_rev": "#{first_rev}",
"body": "This is a body.",
"_attachments": {
"foo.txt": {
"stub": true,
"content_type": "application/test"
},
"bar.txt": {
"follows": true,
"content_type": "application/test",
"length": 18
}
}
}
"""
multipart_data_updated =
"--abc123\r\n" <>
"content-type: application/json\r\n" <>
"\r\n" <>
document_updated <>
"\r\n--abc123\r\n" <> "\r\n" <> "this is 18 chars l" <> "\r\n--abc123--"
resp =
Couch.put(
"/#{db_name}/multipart",
body: multipart_data_updated,
headers: ["Content-Type": "multipart/related;boundary=\"abc123\""]
)
assert resp.status_code in [201, 202]
resp = Couch.get("/#{db_name}/multipart/bar.txt")
assert resp.body == "this is 18 chars l"
resp = Couch.get("/#{db_name}/multipart/baz.txt")
assert resp.status_code == 404
resp =
Couch.get(
"/#{db_name}/multipart",
query: %{:attachments => true},
headers: [accept: "multipart/related,*/*;"]
)
assert resp.status_code == 200
assert resp.headers["Content-length"] == "790"
# parse out the multipart
sections = parse_multipart(resp)
assert length(sections) == 3
# The first section is the json doc. Check it's content-type.
# Each part carries their own meta data.
assert Enum.at(sections, 0).headers["Content-Type"] == "application/json"
assert Enum.at(sections, 1).headers["Content-Type"] == "application/test"
assert Enum.at(sections, 2).headers["Content-Type"] == "application/test"
assert Enum.at(sections, 1).headers["Content-Length"] == "21"
assert Enum.at(sections, 2).headers["Content-Length"] == "18"
assert Enum.at(sections, 1).headers["Content-Disposition"] ==
~s(attachment; filename="foo.txt")
assert Enum.at(sections, 2).headers["Content-Disposition"] ==
~s(attachment; filename="bar.txt")
doc = :jiffy.decode(Enum.at(sections, 0).body, [:return_maps])
assert doc["_attachments"]["foo.txt"]["follows"] == true
assert doc["_attachments"]["bar.txt"]["follows"] == true
assert Enum.at(sections, 1).body == "this is 21 chars long"
assert Enum.at(sections, 2).body == "this is 18 chars l"
# now get attachments incrementally (only the attachments changes since
# a certain rev).
resp =
Couch.get(
"/#{db_name}/multipart",
query: %{:atts_since => ~s(["#{first_rev}"])},
headers: [accept: "multipart/related,*/*;"]
)
assert resp.status_code == 200
sections = parse_multipart(resp)
assert length(sections) == 2
doc = :jiffy.decode(Enum.at(sections, 0).body, [:return_maps])
assert doc["_attachments"]["foo.txt"]["stub"] == true
assert doc["_attachments"]["bar.txt"]["follows"] == true
assert Enum.at(sections, 1).body == "this is 18 chars l"
# try the atts_since parameter together with the open_revs parameter
resp =
Couch.get(
"/#{db_name}/multipart",
query: %{
:open_revs => ~s(["#{doc["_rev"]}"]),
:atts_since => ~s(["#{first_rev}"])
},
headers: [accept: "multipart/related,*/*;"]
)
assert resp.status_code == 200
sections = parse_multipart(resp)
# 1 section, with a multipart/related Content-Type
assert length(sections) == 1
ctype_value = Enum.at(sections, 0).headers["Content-Type"]
assert String.starts_with?(ctype_value, "multipart/related;") == true
inner_sections = parse_multipart(Enum.at(sections, 0))
# 2 inner sections: a document body section plus an attachment data section
assert length(inner_sections) == 3
assert Enum.at(inner_sections, 0).headers["Content-Type"] == "application/json"
doc = :jiffy.decode(Enum.at(inner_sections, 0).body, [:return_maps])
assert doc["_attachments"]["foo.txt"]["follows"] == true
assert doc["_attachments"]["bar.txt"]["follows"] == true
assert Enum.at(inner_sections, 1).body == "this is 21 chars long"
assert Enum.at(inner_sections, 2).body == "this is 18 chars l"
# try it with a rev that doesn't exist (should get all attachments)
resp =
Couch.get(
"/#{db_name}/multipart",
query: %{
:atts_since => ~s(["1-2897589","#{first_rev}"])
},
headers: [accept: "multipart/related,*/*;"]
)
assert resp.status_code == 200
sections = parse_multipart(resp)
assert length(sections) == 2
doc = :jiffy.decode(Enum.at(sections, 0).body, [:return_maps])
assert doc["_attachments"]["foo.txt"]["stub"] == true
assert doc["_attachments"]["bar.txt"]["follows"] == true
assert Enum.at(sections, 1).body == "this is 18 chars l"
end
@tag :with_db
test "manages compressed attachments successfully", context do
db_name = context[:db_name]
# check that with the document multipart/mixed API it's possible to receive
# attachments in compressed form (if they're stored in compressed form)
server_config = [
%{
:section => "attachments",
:key => "compression_level",
:value => "8"
},
%{
:section => "attachments",
:key => "compressible_types",
:value => "text/plain"
}
]
run_on_modified_server(
server_config,
fn -> test_multipart_att_compression(db_name) end
)
end
defp test_multipart_att_compression(dbname) do
doc = %{
"_id" => "foobar"
}
lorem = Couch.get("/_utils/script/test/lorem.txt").body
hello_data = "hello world"
{_, resp} = create_doc(dbname, doc)
first_rev = resp.body["rev"]
resp =
Couch.put(
"/#{dbname}/#{doc["_id"]}/data.bin",
query: %{:rev => first_rev},
body: hello_data,
headers: ["Content-Type": "application/binary"]
)
assert resp.status_code in [201, 202]
second_rev = resp.body["rev"]
resp =
Couch.put(
"/#{dbname}/#{doc["_id"]}/lorem.txt",
query: %{:rev => second_rev},
body: lorem,
headers: ["Content-Type": "text/plain"]
)
assert resp.status_code in [201, 202]
third_rev = resp.body["rev"]
resp =
Couch.get(
"/#{dbname}/#{doc["_id"]}",
query: %{:open_revs => ~s(["#{third_rev}"])},
headers: [Accept: "multipart/mixed", "X-CouchDB-Send-Encoded-Atts": "true"]
)
assert resp.status_code == 200
sections = parse_multipart(resp)
# 1 section, with a multipart/related Content-Type
assert length(sections) == 1
ctype_value = Enum.at(sections, 0).headers["Content-Type"]
assert String.starts_with?(ctype_value, "multipart/related;") == true
inner_sections = parse_multipart(Enum.at(sections, 0))
# 3 inner sections: a document body section plus 2 attachment data sections
assert length(inner_sections) == 3
assert Enum.at(inner_sections, 0).headers["Content-Type"] == "application/json"
doc = :jiffy.decode(Enum.at(inner_sections, 0).body, [:return_maps])
assert doc["_attachments"]["lorem.txt"]["follows"] == true
assert doc["_attachments"]["lorem.txt"]["encoding"] == "gzip"
assert doc["_attachments"]["data.bin"]["follows"] == true
assert doc["_attachments"]["data.bin"]["encoding"] != "gzip"
if Enum.at(inner_sections, 1).body == hello_data do
assert Enum.at(inner_sections, 2).body != lorem
else
if assert Enum.at(inner_sections, 2).body == hello_data do
assert Enum.at(inner_sections, 1).body != lorem
else
assert false, "Could not found data.bin attachment data"
end
end
# now test that it works together with the atts_since parameter
resp =
Couch.get(
"/#{dbname}/#{doc["_id"]}",
query: %{:open_revs => ~s(["#{third_rev}"]), :atts_since => ~s(["#{second_rev}"])},
headers: [Accept: "multipart/mixed", "X-CouchDB-Send-Encoded-Atts": "true"]
)
assert resp.status_code == 200
sections = parse_multipart(resp)
# 1 section, with a multipart/related Content-Type
assert length(sections) == 1
ctype_value = Enum.at(sections, 0).headers["Content-Type"]
assert String.starts_with?(ctype_value, "multipart/related;") == true
inner_sections = parse_multipart(Enum.at(sections, 0))
# 3 inner sections: a document body section plus 2 attachment data sections
assert length(inner_sections) == 3
assert Enum.at(inner_sections, 0).headers["Content-Type"] == "application/json"
doc = :jiffy.decode(Enum.at(inner_sections, 0).body, [:return_maps])
assert doc["_attachments"]["lorem.txt"]["follows"] == true
assert doc["_attachments"]["lorem.txt"]["encoding"] == "gzip"
assert Enum.at(inner_sections, 1).body != lorem
end
def get_boundary(response) do
ctype = response.headers["Content-Type"]
ctype_args = String.split(ctype, "; ")
ctype_args = Enum.slice(ctype_args, 1, length(ctype_args))
boundary_arg =
Enum.find(
ctype_args,
fn arg -> String.starts_with?(arg, "boundary=") end
)
boundary = Enum.at(String.split(boundary_arg, "="), 1)
if String.starts_with?(boundary, ~s(")) do
:jiffy.decode(boundary)
else
boundary
end
end
def parse_multipart(response) do
boundary = get_boundary(response)
leading = "--#{boundary}\r\n"
last = "\r\n--#{boundary}--"
body = response.body
mimetext = Enum.at(String.split(body, leading, parts: 2), 1)
mimetext = Enum.at(String.split(mimetext, last, parts: 2), 0)
sections = String.split(mimetext, ~s(\r\n--#{boundary}))
Enum.map(sections, fn section ->
section_parts = String.split(section, "\r\n\r\n", parts: 2)
raw_headers = String.split(Enum.at(section_parts, 0), "\r\n")
body = Enum.at(section_parts, 1)
headers =
Enum.reduce(raw_headers, %{}, fn raw_header, acc ->
if raw_header != "" do
header_parts = String.split(raw_header, ": ")
Map.put(acc, Enum.at(header_parts, 0), Enum.at(header_parts, 1))
else
acc
end
end)
%{
:headers => headers,
:body => body
}
end)
end
end
|