Support https with letsencrypt.

TODO: add a cron job to renew the certs

.dockerignore

@@ -0,0 +1,5 @@
+*~
+*#
+*.swp
+.DS_Store
+*.pyc

image/base/requirements.in

@@ -9,3 +9,4 @@ click==6.6
 termcolor==1.1.0
 prettytable==0.7.2
 colorlog==2.7.0
+Jinja2==2.8

image/base/requirements.txt

@@ -6,12 +6,10 @@
 #
 click==6.6
 colorlog==2.7.0
+Jinja2==2.8
+MarkupSafe==0.23          # via jinja2
 prettytable==0.7.2
 python-memcached==1.58
 six==1.10.0               # via python-memcached
 termcolor==1.1.0
 urllib3==1.19
-
-# The following packages are commented out because they are
-# considered to be unsafe in a requirements file:
-# setuptools                # via python-ldap

image/seafile/Dockerfile

@@ -10,4 +10,5 @@ RUN mkdir -p /opt/seafile/ && \
 RUN mkdir -p /etc/my_init.d
 ADD create_data_links.sh /etc/my_init.d/create_data_links.sh
 
-ADD seafile.nginx.conf /etc/nginx/sites-enabled/seafile.nginx.conf
+RUN mkdir -p /templates/
+ADD seafile.nginx.conf /templates/seafile.nginx.conf

image/seafile/seafile.nginx.conf

@@ -1,6 +1,30 @@
+{% if https -%}
 server {
     listen 80;
     server_name _ default_server;
+    rewrite ^ https://{{ domain }}$request_uri? permanent;
+}
+{% endif -%}
+
+server {
+{% if https -%}
+    listen 443;
+    ssl on;
+    ssl_certificate      /shared/ssl/{{ domain }}.crt;
+    ssl_certificate_key  /shared/ssl/{{ domain }}.key;
+
+    ssl_ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!aNULL:!MD5:!DSS;
+
+    # TODO: More SSL security hardening: ssl_session_tickets & ssl_dhparam
+    # ssl_session_tickets on;
+    # ssl_session_ticket_key /etc/nginx/sessionticket.key;
+    # ssl_session_cache shared:SSL:10m;
+    # ssl_session_timeout 10m;
+{% else -%}
+    listen 80;
+{% endif -%}
+
+    server_name {{ domain }};
 
     client_max_body_size 10m;
 
@@ -47,4 +71,10 @@ server {
         root /opt/seafile/seafile-server-latest/seahub;
         autoindex off;
     }
+
+    # For letsencrypt
+    location /.well-known/acme-challenge/ {
+        alias /var/www/challenges/;
+        try_files $uri =404;
+    }
 }

launcher

@@ -35,6 +35,11 @@ init_shared() {
     fi
 }
 
+set_ports() {
+    ports="-p 80:80 -p 443:443"
+    ports=""
+}
+
 set_volumes() {
     local mounts
     init_shared
@@ -61,12 +66,14 @@ bootstrap() {
         err_and_quit "The file $bootstrap_conf doesn't exist. Have you run seafile-server-setup?"
     fi
     set_volumes
-    docker run --rm -it -e SEAFILE_BOOTSRAP=1 $volumes $image /sbin/my_init -- /scripts/bootstrap.py
+    set_ports
+    docker run --rm -it --name seafile-bootstrap -e SEAFILE_BOOTSRAP=1 $volumes $ports $image /sbin/my_init -- /scripts/bootstrap.py
 }
 
 start() {
     set_volumes
-    docker run --rm -it --name seafile $volumes $image \
+    set_ports
+    docker run --rm -it --name seafile $volumes $ports $image \
            /sbin/my_init -- /scripts/start.py
            # /sbin/my_init -- bash -l
 }
@@ -75,7 +82,7 @@ enter() {
     err_and_quit "Not implemented yet"
 }
 
-function main {
+main() {
     local action
     while [[ $# -gt 0 ]]
     do

samples/server.conf

@@ -1,4 +1,5 @@
 [server]
 server.hostname = seafile.example.com
+server.https = true
 admin.email = me@example.com
 admin.password = asecret

scripts/bootstrap.py

@@ -13,15 +13,34 @@ import shutil
 import sys
 import uuid
 
-from utils import call, get_conf, get_install_dir, get_script
+from utils import call, get_conf, get_install_dir, get_script, render_nginx_conf
 
 installdir = get_install_dir()
 topdir = dirname(installdir)
 shared_seafiledir = '/shared/seafile'
+ssl_dir = '/shared/ssl'
+
+def init_letsencryt():
+    if not exists(ssl_dir):
+        os.mkdir(ssl_dir)
+
+    domain = get_conf('server.hostname')
+    context = {
+        'https': False,
+        'domain': domain,
+    }
+    render_nginx_conf('/templates/seafile.nginx.conf',
+                      '/etc/nginx/sites-enabled/seafile.nginx.conf', context)
+    call('nginx -s reload')
+    call('/scripts/ssl.sh {0} {1}'.format(ssl_dir, domain))
 
 def main():
     if not exists(shared_seafiledir):
         os.mkdir(shared_seafiledir)
+
+    if get_conf('server.https', '').lower() == 'true':
+        init_letsencryt()
+
     env = {
         'SERVER_NAME': 'seafile',
         'SERVER_IP': get_conf('server.hostname'),
@@ -34,7 +53,7 @@ def main():
 
     # Change the script to allow mysql root password to be empty
     call('''sed -i -e 's/if not mysql_root_passwd/if not mysql_root_passwd and "MYSQL_ROOT_PASSWD" not in os.environ/g' {}'''
-         .format(get_script('setup-seafile-mysql.py')), check_call=True)
+         .format(get_script('setup-seafile-mysql.py')))
 
     setup_script = get_script('setup-seafile-mysql.sh')
     call('{} auto -n seafile'.format(setup_script), env=env)

scripts/ssl.sh

@@ -0,0 +1,44 @@
+#!/bin/bash
+
+set -e
+
+ssldir=${1:?"error params"}
+domain=${2:?"error params"}
+
+letsencryptdir=$ssldir/letsencrypt
+letsencrypt_script=$letsencryptdir/acme_tiny.py
+
+ssl_account_key=${domain}.account.key
+ssl_csr=${domain}.csr
+ssl_key=${domain}.key
+ssl_crt=${domain}.crt
+
+mkdir -p /var/www/challenges && chmod -R 777 /var/www/challenges
+mkdir -p ssldir
+
+if ! [[ -d $letsencryptdir ]]; then
+    git clone git://github.com/diafygi/acme-tiny.git $letsencryptdir
+else
+    cd $letsencryptdir
+    git pull origin master:master
+fi
+
+cd $ssldir
+
+if [[ ! -e ${ssl_account_key} ]]; then
+    openssl genrsa 4096 > ${ssl_account_key}
+fi
+
+if [[ ! -e ${ssl_key} ]]; then
+    openssl genrsa 4096 > ${ssl_key}
+fi
+
+if [[ ! -e ${ssl_csr} ]]; then
+    openssl req -new -sha256 -key ${ssl_key} -subj "/CN=$domain" > $ssl_csr
+fi
+
+python $letsencrypt_script --account-key ${ssl_account_key} --csr $ssl_csr --acme-dir /var/www/challenges/ > ./signed.crt
+curl -sSL -o intermediate.pem https://letsencrypt.org/certs/lets-encrypt-x3-cross-signed.pem
+cat signed.crt intermediate.pem > ${ssl_crt}
+
+nginx -s reload

scripts/start.py

@@ -14,7 +14,7 @@ import shutil
 import sys
 import time
 
-from utils import call, get_conf, get_install_dir, get_script, get_command_output
+from utils import call, get_conf, get_install_dir, get_script, get_command_output, render_nginx_conf
 
 installdir = get_install_dir()
 topdir = dirname(installdir)
@@ -30,7 +30,18 @@ def watch_controller():
     print 'seafile controller exited unexpectedly.'
     sys.exit(1)
 
+def init_https():
+    domain = get_conf('server.hostname')
+    context = {
+        'https': True,
+        'domain': domain,
+    }
+    render_nginx_conf('/templates/seafile.nginx.conf',
+                      '/etc/nginx/sites-enabled/seafile.nginx.conf', context)
+    call('nginx -t && nginx -s reload')
+
 def main():
+    init_https()
     admin_pw = {
         'email': get_conf('admin.email'),
         'password': get_conf('admin.password'),
@@ -39,9 +50,13 @@ def main():
     with open(password_file, 'w') as fp:
         json.dump(admin_pw, fp)
 
+    while not exists('/var/run/mysqld/mysqld.sock'):
+        time.sleep(1)
+    print 'mysql server is ready'
+
     try:
-        call('{} start'.format(get_script('seafile.sh')), check_call=True)
-        call('{} start'.format(get_script('seahub.sh')), check_call=True)
+        call('{} start'.format(get_script('seafile.sh')))
+        call('{} start'.format(get_script('seahub.sh')))
     finally:
         if exists(password_file):
             os.unlink(password_file)

scripts/utils/__init__.py

@@ -48,7 +48,7 @@ def call(*a, **kw):
     dry_run = kw.pop('dry_run', False)
     quiet = kw.pop('quiet', False)
     cwd = kw.get('cwd', os.getcwd())
-    check_call = kw.pop('check_call', False)
+    check_call = kw.pop('check_call', True)
     reduct_args = kw.pop('reduct_args', [])
     if not quiet:
         toprint = a[0]
@@ -220,3 +220,10 @@ def get_conf(key, default=None):
         _config.read("/bootstrap/bootstrap.conf")
     return _config.get("server", key) if _config.has_option("server", key) \
         else default
+
+def render_nginx_conf(template, target, context):
+    from jinja2 import Environment, FileSystemLoader
+    env = Environment(loader=FileSystemLoader(dirname(template)))
+    content = env.get_template(basename(template)).render(**context)
+    with open(target, 'w') as fp:
+        fp.write(content)