# Minimum Nginx version required:  1.13.0 (released Apr 25, 2017)
# Please check your Nginx installation features the following modules via 'nginx -V':
# STANDARD HTTP MODULES: Core, Proxy, Rewrite, Access, Gzip, Headers, HTTP/2, Log, Real IP, SSL, Thread Pool, Upstream, AIO Multithreading.
# THIRD PARTY MODULES:   None.

server {
    listen 80;
    listen [::]:80;
    server_name tube.exozy.me;

    location / {
        return 301 https://$host$request_uri;
    }
}

upstream tube_backend {
    server 127.0.0.1:9000;
}

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name tube.exozy.me;

    access_log /var/log/nginx/peertube.access.log; # reduce I/0 with buffer=10m flush=5m
    error_log /var/log/nginx/peertube.error.log;

    ##
    # Certificates
    # you need a certificate to run in production. see https://letsencrypt.org/
    ##
    ssl_certificate /etc/letsencrypt/live/exozy.me/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/exozy.me/privkey.pem;

    location ^~ '/.well-known/acme-challenge' {
        default_type "text/plain";
        root /var/lib/certbot;
    }

    ##
    # Security hardening (as of Nov 15, 2020)
    # based on Mozilla Guideline v5.6
    ##

    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_prefer_server_ciphers on;
    ssl_ciphers ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256; # add ECDHE-RSA-AES256-SHA if you want compatibility with Android 4
    ssl_session_timeout 1d; # defaults to 5m
    ssl_session_cache shared:SSL:10m; # estimated to 40k sessions
    ssl_session_tickets off;
    ssl_stapling on;
    ssl_stapling_verify on;
    # HSTS (https://hstspreload.org), requires to be copied in 'location' sections that have add_header directives
    #add_header Strict-Transport-Security "max-age=63072000; includeSubDomains";

    ##
    # Application
    ##

    location @api {
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;

        client_max_body_size 100k; # default is 1M

        proxy_connect_timeout 10m;
        proxy_send_timeout 10m;
        proxy_read_timeout 10m;
        send_timeout 10m;

        proxy_pass http://tube_backend;
    }

    location / {
        try_files /dev/null @api;
    }

    location = /api/v1/videos/upload-resumable {
        client_max_body_size 0;
        proxy_request_buffering off;

        try_files /dev/null @api;
    }

    location = /api/v1/videos/upload {
        limit_except POST HEAD {
            deny all;
        }

        # This is the maximum upload size, which roughly matches the maximum size of a video file.
        # Note that temporary space is needed equal to the total size of all concurrent uploads.
        # This data gets stored in /var/lib/nginx by default, so you may want to put this directory
        # on a dedicated filesystem.
        client_max_body_size 12G; # default is 1M
        add_header X-File-Maximum-Size 8G always; # inform backend of the set value in bytes before mime-encoding (x * 1.4 >= client_max_body_size)

        try_files /dev/null @api;
    }

    location ~ ^/api/v1/(videos|video-playlists|video-channels|users/me) {
        client_max_body_size 3M; # default is 1M
        add_header X-File-Maximum-Size 2M always; # inform backend of the set value in bytes before mime-encoding (x * 1.4 >= client_max_body_size)

        try_files /dev/null @api;
    }

    ##
    # Websocket
    ##

    location @api_websocket {
        proxy_http_version 1.1;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";

        proxy_pass http://tube_backend;
    }

    location /socket.io {
        try_files /dev/null @api_websocket;
    }

    location /tracker/socket {
        # Peers send a message to the tracker every 15 minutes
        # Don't close the websocket before then
        proxy_read_timeout 15m; # default is 60s

        try_files /dev/null @api_websocket;
    }

    ##
    # Performance optimizations
    # For extra performance please refer to https://github.com/denji/nginx-tuning
    ##

    root /var/lib/peertube/storage;

    # Enable compression for JS/CSS/HTML, for improved client load times.
    # It might be nice to compress JSON/XML as returned by the API, but
    # leaving that out to protect against potential BREACH attack.
    gzip on;
    gzip_vary on;
    gzip_types # text/html is always compressed by HttpGzipModule
    text/css
    application/javascript
    font/truetype
    font/opentype
    application/vnd.ms-fontobject
    image/svg+xml;
    gzip_min_length 1000; # default is 20 bytes
    gzip_buffers 16 8k;
    gzip_comp_level 2; # default is 1

    client_body_timeout 30s; # default is 60
    client_header_timeout 10s; # default is 60
    send_timeout 10s; # default is 60
    keepalive_timeout 10s; # default is 75
    resolver_timeout 10s; # default is 30
    reset_timedout_connection on;
    proxy_ignore_client_abort on;

    tcp_nopush on; # send headers in one piece
    tcp_nodelay on; # don't buffer data sent, good for small data bursts in real time

    # If you have a small /var/lib partition, it could be interesting to store temp nginx uploads in a different place
    # See https://nginx.org/en/docs/http/ngx_http_core_module.html#client_body_temp_path
    #client_body_temp_path /var/lib/peertube/storage/nginx/;

    # Bypass PeerTube for performance reasons. Optional.
    # Should be consistent with client-overrides assets list in /server/controllers/client.ts
    location ~ ^/client/(assets/images/(icons/icon-36x36\.png|icons/icon-48x48\.png|icons/icon-72x72\.png|icons/icon-96x96\.png|icons/icon-144x144\.png|icons/icon-192x192\.png|icons/icon-512x512\.png|logo\.svg|favicon\.png))$ {
        add_header Cache-Control "public, max-age=31536000, immutable"; # Cache 1 year

        root /var/lib/peertube;

        try_files /storage/client-overrides/$1 /peertube-latest/client/dist/$1 @api;
    }

    # Bypass PeerTube for performance reasons. Optional.
    location ~ ^/client/(.*\.(js|css|png|svg|woff2|otf|ttf|woff|eot))$ {
        add_header Cache-Control "public, max-age=31536000, immutable"; # Cache 1 year

        alias /usr/share/webapps/peertube/client/dist/$1;
    }

    # Bypass PeerTube for performance reasons. Optional.
    location ~ ^/static/(thumbnails|avatars)/ {
        if ($request_method = 'OPTIONS') {
            add_header Access-Control-Allow-Origin '*';
            add_header Access-Control-Allow-Methods 'GET, OPTIONS';
            add_header Access-Control-Allow-Headers 'Range,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
            add_header Access-Control-Max-Age 1728000; # Preflight request can be cached 20 days
            add_header Content-Type 'text/plain charset=UTF-8';
            add_header Content-Length 0;
            return 204;
        }

        add_header Access-Control-Allow-Origin '*';
        add_header Access-Control-Allow-Methods 'GET, OPTIONS';
        add_header Access-Control-Allow-Headers 'Range,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
        add_header Cache-Control "public, max-age=7200"; # Cache response 2 hours

        rewrite ^/static/(.*)$ /$1 break;

        try_files $uri @api;
    }

    # Bypass PeerTube for performance reasons. Optional.
    location ~ ^/static/(webseed|redundancy|streaming-playlists)/ {
        limit_rate_after 5M;

        # Clients usually have 4 simultaneous webseed connections, so the real limit is 3MB/s per client
        set $peertube_limit_rate 800k;

        # Increase rate limit in HLS mode, because we don't have multiple simultaneous connections
        if ($request_uri ~ -fragmented.mp4$) {
            set $peertube_limit_rate 5M;
        }

        # Use this line with nginx >= 1.17.0
        limit_rate $peertube_limit_rate;
        # Or this line if your nginx < 1.17.0
        #set $limit_rate $peertube_limit_rate;

        if ($request_method = 'OPTIONS') {
            add_header Access-Control-Allow-Origin '*';
            add_header Access-Control-Allow-Methods 'GET, OPTIONS';
            add_header Access-Control-Allow-Headers 'Range,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
            add_header Access-Control-Max-Age 1728000; # Preflight request can be cached 20 days
            add_header Content-Type 'text/plain charset=UTF-8';
            add_header Content-Length 0;
            return 204;
        }

        if ($request_method = 'GET') {
            add_header Access-Control-Allow-Origin '*';
            add_header Access-Control-Allow-Methods 'GET, OPTIONS';
            add_header Access-Control-Allow-Headers 'Range,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';

            # Don't spam access log file with byte range requests
            access_log off;
        }

        # Enabling the sendfile directive eliminates the step of copying the data into the buffer
        # and enables direct copying data from one file descriptor to another.
        sendfile on;
        sendfile_max_chunk 1M; # prevent one fast connection from entirely occupying the worker process. should be > 800k.
        aio threads;

        # Use this in tandem with fuse-mounting i.e. https://docs.joinpeertube.org/admin-remote-storage
        # to serve files directly from a public bucket without proxying.
        # Assumes you have buckets named after the storage subdirectories, i.e. 'videos', 'redundancy', etc.
        #set $cdn <your S3-compatiable bucket public url mounted via fuse>;
        #rewrite ^/static/webseed/(.*)$ $cdn/videos/$1 redirect;
        #rewrite ^/static/(.*)$         $cdn/$1        redirect;
        rewrite ^/static/webseed/(.*)$ /videos/$1 break;
        rewrite ^/static/(.*)$ /$1 break;

        try_files $uri @api;
    }
}