92 lines
2.7 KiB
Nim
92 lines
2.7 KiB
Nim
# SPDX-License-Identifier: AGPL-3.0-only
|
|
import httpclient, asyncdispatch, options, times, strutils, uri
|
|
import packedjson, zippy
|
|
import types, tokens, consts, parserutils, http_pool
|
|
|
|
const
|
|
rlRemaining = "x-rate-limit-remaining"
|
|
rlReset = "x-rate-limit-reset"
|
|
|
|
var pool: HttpPool
|
|
|
|
proc genParams*(pars: openArray[(string, string)] = @[]; cursor="";
|
|
count="20"; ext=true): seq[(string, string)] =
|
|
result = timelineParams
|
|
for p in pars:
|
|
result &= p
|
|
if ext:
|
|
result &= ("ext", "mediaStats")
|
|
if count.len > 0:
|
|
result &= ("count", count)
|
|
if cursor.len > 0:
|
|
# The raw cursor often has plus signs, which sometimes get turned into spaces,
|
|
# so we need to them back into a plus
|
|
if " " in cursor:
|
|
result &= ("cursor", cursor.replace(" ", "+"))
|
|
else:
|
|
result &= ("cursor", cursor)
|
|
|
|
proc genHeaders*(token: Token = nil): HttpHeaders =
|
|
result = newHttpHeaders({
|
|
"connection": "keep-alive",
|
|
"authorization": auth,
|
|
"content-type": "application/json",
|
|
"x-guest-token": if token == nil: "" else: token.tok,
|
|
"x-twitter-active-user": "yes",
|
|
"authority": "api.twitter.com",
|
|
"accept-encoding": "gzip",
|
|
"accept-language": "en-US,en;q=0.9",
|
|
"accept": "*/*",
|
|
"DNT": "1"
|
|
})
|
|
|
|
proc fetch*(url: Uri; api: Api): Future[JsonNode] {.async.} =
|
|
once:
|
|
pool = HttpPool()
|
|
|
|
var token = await getToken(api)
|
|
if token.tok.len == 0:
|
|
raise rateLimitError()
|
|
|
|
let headers = genHeaders(token)
|
|
try:
|
|
var resp: AsyncResponse
|
|
var body = pool.use(headers):
|
|
resp = await c.get($url)
|
|
await resp.body
|
|
|
|
if body.len > 0:
|
|
if resp.headers.getOrDefault("content-encoding") == "gzip":
|
|
body = uncompress(body, dfGzip)
|
|
else:
|
|
echo "non-gzip body, url: ", url, ", body: ", body
|
|
|
|
if body.startsWith('{') or body.startsWith('['):
|
|
result = parseJson(body)
|
|
else:
|
|
echo resp.status, ": ", body
|
|
result = newJNull()
|
|
|
|
if api != Api.search and resp.headers.hasKey(rlRemaining):
|
|
let
|
|
remaining = parseInt(resp.headers[rlRemaining])
|
|
reset = parseInt(resp.headers[rlReset])
|
|
token.setRateLimit(api, remaining, reset)
|
|
|
|
if result.getError notin {invalidToken, forbidden, badToken}:
|
|
release(token, used=true)
|
|
else:
|
|
echo "fetch error: ", result.getError
|
|
release(token, invalid=true)
|
|
raise rateLimitError()
|
|
|
|
if resp.status == $Http400:
|
|
raise newException(InternalError, $url)
|
|
except InternalError as e:
|
|
raise e
|
|
except Exception as e:
|
|
echo "error: ", e.name, ", msg: ", e.msg, ", token: ", token[], ", url: ", url
|
|
if "length" notin e.msg and "descriptor" notin e.msg:
|
|
release(token, invalid=true)
|
|
raise rateLimitError()
|