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|
defmodule Couch.Session do
@moduledoc """
CouchDB session helpers.
"""
@enforce_keys [:cookie]
defstruct [:cookie]
def new(cookie) do
%Couch.Session{cookie: cookie}
end
def logout(sess) do
headers = [
"Content-Type": "application/x-www-form-urlencoded",
"X-CouchDB-WWW-Authenticate": "Cookie",
Cookie: sess.cookie
]
Couch.delete!("/_session", headers: headers)
end
def get(sess, url, opts \\ []), do: go(sess, :get, url, opts)
def get!(sess, url, opts \\ []), do: go!(sess, :get, url, opts)
def put(sess, url, opts \\ []), do: go(sess, :put, url, opts)
def put!(sess, url, opts \\ []), do: go!(sess, :put, url, opts)
def post(sess, url, opts \\ []), do: go(sess, :post, url, opts)
def post!(sess, url, opts \\ []), do: go!(sess, :post, url, opts)
def delete(sess, url, opts \\ []), do: go(sess, :delete, url, opts)
def delete!(sess, url, opts \\ []), do: go!(sess, :delete, url, opts)
# Skipping head/patch/options for YAGNI. Feel free to add
# if the need arises.
def go(%Couch.Session{} = sess, method, url, opts) do
opts = Keyword.merge(opts, cookie: sess.cookie)
Couch.request(method, url, opts)
end
def go!(%Couch.Session{} = sess, method, url, opts) do
opts = Keyword.merge(opts, cookie: sess.cookie)
Couch.request!(method, url, opts)
end
end
defmodule Couch do
use HTTPotion.Base
@moduledoc """
CouchDB library to power test suite.
"""
def process_url("http://" <> _ = url) do
url
end
def process_url(url) do
base_url = System.get_env("EX_COUCH_URL") || "http://127.0.0.1:15984"
base_url <> url
end
def process_request_headers(headers, options) do
headers = Keyword.put(headers, :"User-Agent", "couch-potion")
headers =
if headers[:"Content-Type"] do
headers
else
Keyword.put(headers, :"Content-Type", "application/json")
end
case Keyword.get(options, :cookie) do
nil ->
headers
cookie ->
Keyword.put(headers, :Cookie, cookie)
end
end
def process_options(options) do
if Keyword.get(options, :cookie) == nil do
headers = Keyword.get(options, :headers, [])
if headers[:basic_auth] != nil or headers[:authorization] != nil do
options
else
username = System.get_env("EX_USERNAME") || "adm"
password = System.get_env("EX_PASSWORD") || "pass"
Keyword.put(options, :basic_auth, {username, password})
end
else
options
end
end
def process_request_body(body) do
if is_map(body) do
:jiffy.encode(body)
else
body
end
end
def process_response_body(headers, body) do
content_type = headers[:"Content-Type"]
if !!content_type and String.match?(content_type, ~r/application\/json/) do
body |> IO.iodata_to_binary() |> :jiffy.decode([:return_maps])
else
process_response_body(body)
end
end
def login(userinfo) do
[user, pass] = String.split(userinfo, ":", parts: 2)
login(user, pass)
end
def login(user, pass) do
resp = Couch.post("/_session", body: %{:username => user, :password => pass})
true = resp.body["ok"]
cookie = resp.headers[:"set-cookie"]
[token | _] = String.split(cookie, ";")
%Couch.Session{cookie: token}
end
# HACK: this is here until this commit lands in a release
# https://github.com/myfreeweb/httpotion/commit/f3fa2f0bc3b9b400573942b3ba4628b48bc3c614
def handle_response(response) do
case response do
{:ok, status_code, headers, body, _} ->
processed_headers = process_response_headers(headers)
%HTTPotion.Response{
status_code: process_status_code(status_code),
headers: processed_headers,
body: process_response_body(processed_headers, body)
}
{:ok, status_code, headers, body} ->
processed_headers = process_response_headers(headers)
%HTTPotion.Response{
status_code: process_status_code(status_code),
headers: processed_headers,
body: process_response_body(processed_headers, body)
}
{:ibrowse_req_id, id} ->
%HTTPotion.AsyncResponse{id: id}
{:error, {:conn_failed, {:error, reason}}} ->
%HTTPotion.ErrorResponse{message: error_to_string(reason)}
{:error, :conn_failed} ->
%HTTPotion.ErrorResponse{message: "conn_failed"}
{:error, reason} ->
%HTTPotion.ErrorResponse{message: error_to_string(reason)}
end
end
# Anther HACK: Until we can get process_request_headers/2 merged
# upstream.
@spec process_arguments(atom, String.t(), [{atom(), any()}]) :: %{}
defp process_arguments(method, url, options) do
options = process_options(options)
body = Keyword.get(options, :body, "")
headers =
Keyword.merge(
Application.get_env(:httpotion, :default_headers, []),
Keyword.get(options, :headers, [])
)
timeout =
Keyword.get(
options,
:timeout,
Application.get_env(:httpotion, :default_timeout, 5000)
)
ib_options =
Keyword.merge(
Application.get_env(:httpotion, :default_ibrowse, []),
Keyword.get(options, :ibrowse, [])
)
follow_redirects =
Keyword.get(
options,
:follow_redirects,
Application.get_env(:httpotion, :default_follow_redirects, false)
)
ib_options =
if stream_to = Keyword.get(options, :stream_to),
do:
Keyword.put(
ib_options,
:stream_to,
spawn(__MODULE__, :transformer, [stream_to, method, url, options])
),
else: ib_options
ib_options =
if user_password = Keyword.get(options, :basic_auth) do
{user, password} = user_password
Keyword.put(ib_options, :basic_auth, {to_charlist(user), to_charlist(password)})
else
ib_options
end
%{
method: method,
url: url |> to_string |> process_url(options) |> to_charlist,
body: body |> process_request_body,
headers:
headers
|> process_request_headers(options)
|> Enum.map(fn {k, v} -> {to_charlist(k), to_charlist(v)} end),
timeout: timeout,
ib_options: ib_options,
follow_redirects: follow_redirects
}
end
end
|
