Add Yande.re search

src/NadekoBot/Modules/Searches/Searches.cs

@@ -385,6 +385,20 @@ $@"🌍 **Weather for** 【{obj["target"]}】
                 return;
             await channel.SendMessageAsync($"https://images.google.com/searchbyimage?image_url={imageLink}").ConfigureAwait(false);
         }
+		
+        [NadekoCommand, Usage, Description, Aliases]
+        [RequireContext(ContextType.Guild)]
+        public async Task Yandere(IUserMessage umsg, [Remainder] string tag = null)
+        {
+            var channel = (ITextChannel)umsg.Channel;
+
+            tag = tag?.Trim() ?? "";
+            var link = await GetYandereImageLink(tag).ConfigureAwait(false);
+            if (link == null)
+                await channel.SendMessageAsync("`No results.`");
+            else
+                await channel.SendMessageAsync(link).ConfigureAwait(false);
+        }
 
         [NadekoCommand, Usage, Description, Aliases]
         [RequireContext(ContextType.Guild)]
@@ -477,6 +491,22 @@ $@"🌍 **Weather for** 【{obj["target"]}】
             }
             await channel.SendMessageAsync(await _google.ShortenUrl(usr.AvatarUrl).ConfigureAwait(false)).ConfigureAwait(false);
         }
+		
+        public static async Task<string> GetYandereImageLink(string tag)
+        {
+            var rng = new NadekoRandom();
+            var url =
+            $"https://yande.re/post.xml?limit=100&tags={tag.Replace(" ", "_")}";
+            using (var http = new HttpClient())
+            {
+                var webpage = await http.GetStringAsync(url).ConfigureAwait(false);
+                var matches = Regex.Matches(webpage, "file_url=\"(?<url>.*?)\"");
+                if (matches.Count == 0)
+                    return null;
+                var match = matches[rng.Next(0, matches.Count)];
+                return matches[rng.Next(0, matches.Count)].Groups["url"].Value;
+            }
+        }
 
         public static async Task<string> GetSafebooruImageLink(string tag)
         {

src/NadekoBot/Resources/CommandStrings.Designer.cs

@@ -7753,5 +7753,32 @@ namespace NadekoBot.Resources {
                 return ResourceManager.GetString("youtube_usage", resourceCulture);
             }
         }
+		
+        /// <summary>
+        ///    Looks up a localized string similar to yandere.
+        /// </summary>
+        public static string yandere_cmd {
+            get {
+                return ResourceManager.GetString("yandere_cmd", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to Shows a random image from yandere with a given tag. Tag is optional but preferred. (multiple tags are appended with +).
+        /// </summary>
+        public static string yandere_desc {
+            get {
+                return ResourceManager.GetString("yandere_desc", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///    Looks up a localized string similar to `{0}yandere tag1+tag2`.
+        /// </summary>
+        public static string yandere_usage {
+            get {
+                return ResourceManager.GetString("yandere_usage", resourceCulture);
+            }
+        }
     }
 }

src/NadekoBot/Resources/CommandStrings.resx

@@ -2682,4 +2682,13 @@
   <data name="bfu_usage" xml:space="preserve">
     <value>`{0}bfu platform game user`</value>
   </data>
+  <data name="yandere_cmd" xml:space="preserve">
+    <value>yandere</value>
+  </data>
+  <data name="yandere_desc" xml:space="preserve">
+    <value>Shows a random image from yandere with a given tag. Tag is optional but preferred. (multiple tags are appended with +)</value>
+  </data>
+  <data name="yandere_usage" xml:space="preserve">
+    <value>`{0}yandere tag1+tag2`</value>
+  </data>
 </root>