Strip https://pbs.twimg.com from image urls

src/parser.nim

@@ -10,7 +10,7 @@ proc parseProfile(js: JsonNode; id=""): Profile =
     fullname: js{"name"}.getStr,
     location: js{"location"}.getStr,
     bio: js{"description"}.getStr,
-    userpic: js{"profile_image_url_https"}.getStr.replace("_normal", ""),
+    userpic: js{"profile_image_url_https"}.getImageStr.replace("_normal", ""),
     banner: js.getBanner,
     following: $js{"friends_count"}.getInt,
     followers: $js{"followers_count"}.getInt,
@@ -62,7 +62,7 @@ proc parseGraphList*(js: JsonNode): List =
     userId: list{"user", "legacy", "id_str"}.getStr,
     description: list{"description"}.getStr,
     members: list{"member_count"}.getInt,
-    banner: list{"custom_banner_media", "media_info", "url"}.getStr
+    banner: list{"custom_banner_media", "media_info", "url"}.getImageStr
   )
 
 proc parseListMembers*(js: JsonNode; cursor: string): Result[Profile] =
@@ -100,15 +100,15 @@ proc parsePoll(js: JsonNode): Poll =
   result.votes = result.values.sum
 
 proc parseGif(js: JsonNode): Gif =
-  Gif(
-    url: js{"video_info", "variants"}[0]{"url"}.getStr,
-    thumb: js{"media_url_https"}.getStr
+  result = Gif(
+    url: js{"video_info", "variants"}[0]{"url"}.getImageStr,
+    thumb: js{"media_url_https"}.getImageStr
   )
 
 proc parseVideo(js: JsonNode): Video =
   result = Video(
     videoId: js{"id_str"}.getStr,
-    thumb: js{"media_url_https"}.getStr,
+    thumb: js{"media_url_https"}.getImageStr,
     views: js{"ext", "mediaStats", "r", "ok", "viewCount"}.getStr,
     available: js{"ext_media_availability", "status"}.getStr == "available",
     title: js{"ext_alt_text"}.getStr,
@@ -249,7 +249,7 @@ proc parseTweet(js: JsonNode): Tweet =
     for m in jsMedia:
       case m{"type"}.getStr
       of "photo":
-        result.photos.add m{"media_url_https"}.getStr
+        result.photos.add m{"media_url_https"}.getImageStr
       of "video":
         result.video = some(parseVideo(m))
       of "animated_gif":

src/parserutils.nim

@@ -1,4 +1,4 @@
-import strutils, times, macros, htmlgen, uri, unicode, options
+import strutils, times, macros, htmlgen, unicode, options
 import regex, packedjson
 import types, utils, formatters
 
@@ -58,8 +58,13 @@ proc getId*(js: JsonNode): int64 {.inline.} =
 template getStrVal*(js: JsonNode; default=""): string =
   js{"string_value"}.getStr(default)
 
-template getImageVal*(js: JsonNode; default=""): string =
-  js{"image_value", "url"}.getStr(default)
+proc getImageStr*(js: JsonNode): string =
+  result = js.getStr
+  result.removePrefix(https)
+  result.removePrefix(twimg)
+
+template getImageVal*(js: JsonNode): string =
+  js{"image_value", "url"}.getImageStr
 
 proc getCardUrl*(js: JsonNode; kind: CardKind): string =
   result = js{"website_url"}.getStrVal
@@ -81,7 +86,7 @@ proc getCardTitle*(js: JsonNode; kind: CardKind): string =
     result = js{"event_category"}.getStrVal
 
 proc getBanner*(js: JsonNode): string =
-  let url = js{"profile_banner_url"}.getStr
+  let url = js{"profile_banner_url"}.getImageStr
   if url.len > 0:
     return url & "/1500x500"
 

src/routes/media.nim

@@ -4,7 +4,7 @@ import asynchttpserver, asyncstreams, asyncfile, asyncnet
 import jester, regex
 
 import router_utils
-import ".."/[types, formatters, agents]
+import ".."/[types, formatters, agents, utils]
 import ../views/general
 
 export asynchttpserver, asyncstreams, asyncfile, asyncnet
@@ -66,11 +66,14 @@ proc createMediaRouter*(cfg: Config) =
       resp Http404
 
     get "/pic/@url":
-      cond "http" in @"url"
-      cond "twimg" in @"url"
+      var url = decodeUrl(@"url")
+      if "twimg.com" notin url:
+        url.insert(twimg)
+      if not url.startsWith(https):
+        url.insert(https)
 
-      let uri = parseUri(decodeUrl(@"url"))
-      cond isTwitterUrl($uri) == true
+      let uri = parseUri(url)
+      cond isTwitterUrl(uri) == true
 
       enableRawMode()
       let code = await proxyMedia(request, $uri)

src/utils.nim

@@ -4,6 +4,8 @@ import nimcrypto, regex
 var hmacKey = "secretkey"
 
 const
+  https* = "https://"
+  twimg* = "pbs.twimg.com/"
   badJpgExts = @["1500x500", "jpgn", "jpg:", "jpg_", "_jpg"]
   badPngExts = @["pngn", "png:", "png_", "_png"]
   twitterDomains = @[
@@ -43,5 +45,8 @@ proc filterParams*(params: Table): seq[(string, string)] =
   let filter = ["name", "id", "list", "referer", "scroll"]
   toSeq(params.pairs()).filterIt(it[0] notin filter and it[1].len > 0)
 
+proc isTwitterUrl*(uri: Uri): bool =
+  uri.hostname in twitterDomains
+
 proc isTwitterUrl*(url: string): bool =
   parseUri(url).hostname in twitterDomains

tests/test_card.py

@@ -107,7 +107,7 @@ class CardTest(BaseTestCase):
         card = Card(Conversation.main + " ")
         self.assert_text(title, card.title)
         self.assert_text(destination, card.destination)
-        self.assertIn('twimg', self.get_image_url(card.image + ' img'))
+        self.assertIn('_img', self.get_image_url(card.image + ' img'))
         if len(description) > 0:
             self.assert_text(description, card.description)
         if large:
@@ -130,7 +130,7 @@ class CardTest(BaseTestCase):
         card = Card(Conversation.main + " ")
         self.assert_text(title, card.title)
         self.assert_text(destination, card.destination)
-        self.assertIn('twimg', self.get_image_url(card.image + ' img'))
+        self.assertIn('_img', self.get_image_url(card.image + ' img'))
         self.assert_element_visible('.card-overlay')
         if len(description) > 0:
             self.assert_text(description, card.description)