From 867a744720c46c0b04a2d34c2119ad366aa440ef Mon Sep 17 00:00:00 2001
From: Lakelezz <12222135+Lakelezz@users.noreply.github.com>
Date: Tue, 30 Oct 2018 15:10:10 +0100
Subject: Add Function to neutralise Mentions (#414)

---
 examples/05_command_framework/src/main.rs | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

(limited to 'examples/05_command_framework/src')

diff --git a/examples/05_command_framework/src/main.rs b/examples/05_command_framework/src/main.rs
index e69934c..843fb43 100644
--- a/examples/05_command_framework/src/main.rs
+++ b/examples/05_command_framework/src/main.rs
@@ -20,6 +20,7 @@ use serenity::model::gateway::Ready;
 use serenity::model::Permissions;
 use serenity::prelude::Mutex;
 use serenity::prelude::*;
+use serenity::utils::{content_safe, ContentSafeOptions};
 use std::collections::HashMap;
 use std::env;
 use std::fmt::Write;
@@ -175,6 +176,10 @@ fn main() {
             // Make this command use the "complicated" bucket.
             .bucket("complicated")
             .cmd(commands))
+        // Command that will repeat passed arguments and remove user and
+        // role mentions with safe alternative.
+        .command("say", |c| c
+            .cmd(say))
         .group("Emoji", |g| g
             // Sets multiple prefixes for a group.
             // This requires us to call commands in this group
@@ -250,6 +255,32 @@ command!(commands(ctx, msg, _args) {
     }
 });
 
+// Repeats what the user passed as argument but ensures that user and role
+// mentions are replaced with a safe textual alternative.
+// In this example channel mentions are excluded via the `ContentSafeOptions`.
+command!(say(_ctx, msg, args) {
+    let mut settings = if let Some(guild_id) = msg.guild_id {
+       // By default roles, users, and channel mentions are cleaned.
+       ContentSafeOptions::default()
+            // We do not want to clean channal mentions as they
+            // do not ping users.
+            .clean_channel(false)
+            // If it's a guild channel, we want mentioned users to be displayed
+            // as their display name.
+            .display_as_member_from(guild_id)
+    } else {
+        ContentSafeOptions::default()
+            .clean_channel(false)
+            .clean_role(false)
+    };
+
+    let mut content = content_safe(&args.full(), &settings);
+
+    if let Err(why) = msg.channel_id.say(&content) {
+        println!("Error sending message: {:?}", why);
+    }
+});
+
 // A function which acts as a "check", to determine whether to call a command.
 //
 // In this case, this command checks to ensure you are the owner of the message
-- 
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