Cache video token

This commit is contained in:
Zed 2019-06-24 05:29:47 +02:00
parent 861ac7a593
commit 1213220ef0
2 changed files with 70 additions and 64 deletions

View File

@ -18,12 +18,19 @@ const
videoUrl = "videos/tweet/config/$1.json"
tokenUrl = "guest/activate.json"
proc fetchHtml(url: Uri; headers: HttpHeaders; jsonKey = ""): Future[XmlNode] {.async.} =
var
token = ""
tokenUpdated: Time
tokenLifetime = initDuration(minutes=10)
template newClient() {.dirty.} =
var client = newAsyncHttpClient()
defer: client.close()
client.headers = headers
proc fetchHtml(url: Uri; headers: HttpHeaders; jsonKey = ""): Future[XmlNode] {.async.} =
newClient()
var resp = ""
try:
resp = await client.getContent($url)
@ -37,10 +44,7 @@ proc fetchHtml(url: Uri; headers: HttpHeaders; jsonKey = ""): Future[XmlNode] {.
return parseHtml(resp)
proc fetchJson(url: Uri; headers: HttpHeaders): Future[JsonNode] {.async.} =
var client = newAsyncHttpClient()
defer: client.close()
client.headers = headers
newClient()
var resp = ""
try:
@ -50,6 +54,65 @@ proc fetchJson(url: Uri; headers: HttpHeaders): Future[JsonNode] {.async.} =
return parseJson(resp)
proc getGuestToken(): Future[string] {.async.} =
if getTime() - tokenUpdated < tokenLifetime:
return token
tokenUpdated = getTime()
let headers = newHttpHeaders({
"Accept": "application/json, text/javascript, */*; q=0.01",
"Referer": $base,
"User-Agent": agent,
"Authorization": auth
})
newClient()
let
url = apibase / tokenUrl
json = parseJson(await client.postContent($url))
result = json["guest_token"].to(string)
token = result
proc getVideo*(tweet: Tweet; token: string) {.async.} =
if not tweet.video.isSome: return
let headers = newHttpHeaders({
"Accept": "application/json, text/javascript, */*; q=0.01",
"Referer": tweet.link,
"User-Agent": agent,
"Authorization": auth,
"x-guest-token": token
})
let
url = apiBase / (videoUrl % tweet.id)
json = await fetchJson(url, headers)
tweet.video = some(parseVideo(json))
proc getVideos*(tweets: Tweets) {.async.} =
var token = await getGuestToken()
var videoFuts: seq[Future[void]]
for tweet in tweets.filterIt(it.video.isSome):
videoFuts.add getVideo(tweet, token)
await all(videoFuts)
proc getConversationVideos*(convo: Conversation) {.async.} =
var token = await getGuestToken()
var futs: seq[Future[void]]
futs.add getVideo(convo.tweet, token)
futs.add getVideos(convo.before)
futs.add getVideos(convo.after)
futs.add convo.replies.mapIt(getVideos(it))
await all(futs)
proc getProfileFallback(username: string; headers: HttpHeaders): Future[Profile] {.async.} =
let
url = base / profileIntentUrl ? {"screen_name": username}
@ -81,63 +144,6 @@ proc getProfile*(username: string): Future[Profile] {.async.} =
result = parsePopupProfile(html)
proc getGuestToken(): Future[string] {.async.} =
let headers = newHttpHeaders({
"Accept": "application/json, text/javascript, */*; q=0.01",
"Referer": $base,
"User-Agent": agent,
"Authorization": auth
})
let client = newAsyncHttpClient()
client.headers = headers
let
url = apibase / tokenUrl
json = parseJson(await client.postContent($url))
result = json["guest_token"].to(string)
proc getVideo*(tweet: Tweet; token: string) {.async.} =
let headers = newHttpHeaders({
"Accept": "application/json, text/javascript, */*; q=0.01",
"Referer": tweet.link,
"User-Agent": agent,
"Authorization": auth,
"x-guest-token": token
})
let
url = apiBase / (videoUrl % tweet.id)
json = await fetchJson(url, headers)
tweet.video = some(parseVideo(json))
proc getVideos*(tweets: Tweets; token="") {.async.} =
if not tweets.anyIt(it.video.isSome): return
var
token = if token.len > 0: token else: await getGuestToken()
videoFuts: seq[Future[void]]
for tweet in tweets:
if tweet.video.isSome:
videoFuts.add getVideo(tweet, token)
await all(videoFuts)
proc getConversationVideos*(convo: Conversation) {.async.} =
var token = await getGuestToken()
var futs: seq[Future[void]]
futs.add getVideo(convo.tweet, token)
futs.add getVideos(convo.before, token=token)
futs.add getVideos(convo.after, token=token)
futs.add convo.replies.mapIt(getVideos(it, token=token))
await all(futs)
proc getTimeline*(username: string; after=""): Future[Tweets] {.async.} =
let headers = newHttpHeaders({
"Accept": "application/json, text/javascript, */*; q=0.01",

View File

@ -112,5 +112,5 @@ proc getTweetMedia*(tweet: Tweet; node: XmlNode) =
if "gif" in player.getAttr("class"):
tweet.gif = some(getGif(player.querySelector(".PlayableMedia-player")))
else:
elif "video" in player.getAttr("class"):
tweet.video = some(Video())