initial commit

.drone.yml

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+kind: pipeline
+name: default
+
+workspace:
+  base: /go
+  path: src/deadbeef.codes/steven/docker-webdav-apache
+
+steps:
+
+- name: docker build
+  image: plugins/docker
+  settings:
+    repo: registry.deadbeef.codes/docker-webdav-apache

Dockerfile

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+FROM httpd:alpine
+
+# These variables are inherited from the httpd:alpine image:
+# ENV HTTPD_PREFIX /usr/local/apache2
+# WORKDIR "$HTTPD_PREFIX"
+
+# Copy in our configuration files.
+COPY conf/ conf/
+
+RUN set -ex; \
+    # Create empty default DocumentRoot.
+    mkdir -p "/var/www/html"; \
+    # Create directories for Dav data and lock database.
+    mkdir -p "/var/lib/dav/data"; \
+    touch "/var/lib/dav/DavLock"; \
+    chown -R www-data:www-data "/var/lib/dav"; \
+    \
+    # Enable DAV modules.
+    for i in dav dav_fs; do \
+        sed -i -e "/^#LoadModule ${i}_module.*/s/^#//" "conf/httpd.conf"; \
+    done; \
+    \
+    # Make sure authentication modules are enabled.
+    for i in authn_core authn_file authz_core authz_user auth_basic auth_digest; do \
+        sed -i -e "/^#LoadModule ${i}_module.*/s/^#//" "conf/httpd.conf"; \
+    done; \
+    \
+    # Make sure other modules are enabled.
+    for i in alias headers mime setenvif; do \
+        sed -i -e "/^#LoadModule ${i}_module.*/s/^#//" "conf/httpd.conf"; \
+    done; \
+    \
+    # Run httpd as "www-data" (instead of "daemon").
+    for i in User Group; do \
+        sed -i -e "s|^$i .*|$i www-data|" "conf/httpd.conf"; \
+    done; \
+    \
+    # Include enabled configs and sites.
+    printf '%s\n' "Include conf/conf-enabled/*.conf" \
+        >> "conf/httpd.conf"; \
+    printf '%s\n' "Include conf/sites-enabled/*.conf" \
+        >> "conf/httpd.conf"; \
+    \
+    # Enable dav and default site.
+    mkdir -p "conf/conf-enabled"; \
+    mkdir -p "conf/sites-enabled"; \
+    ln -s ../conf-available/dav.conf "conf/conf-enabled"; \
+    ln -s ../sites-available/default.conf "conf/sites-enabled"; \
+    # Install openssl if we need to generate a self-signed certificate.
+    apk add --no-cache openssl
+
+COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
+EXPOSE 80/tcp 443/tcp
+ENTRYPOINT [ "docker-entrypoint.sh" ]
+CMD [ "httpd-foreground" ]

README.md

@@ -1,3 +1,35 @@
+[![Build Status](https://drone.deadbeef.codes/api/badges/steven/docker-webdav-apache/status.svg)](https://drone.deadbeef.codes/steven/docker-webdav-apache)
+
 # docker-webdav-apache
 
-containerized webdav server with the OG apache server
+#### Via Docker Compose:
+
+```
+version: '3'
+services:
+  webdav:
+    image: registry.deadbeef.codes/docker-webdav-apache:latest
+    restart: always
+    ports:
+      - "80:80"
+    environment:
+      AUTH_TYPE: Digest
+      USERNAME: alice
+      PASSWORD: secret1234
+    volumes:
+      - /srv/dav:/var/lib/dav
+
+```
+### Environment variables
+
+All environment variables are optional. You probably want to at least specify `USERNAME` and `PASSWORD` (or bind mount your own authentication file to `/user.passwd`) otherwise nobody will be able to access your WebDAV server!
+
+* **`SERVER_NAMES`**: Comma-separated list of domains (eg, `example.com,www.example.com`). The first is set as the [ServerName](https://httpd.apache.org/docs/current/mod/core.html#servername), and the rest (if any) are set as [ServerAlias](https://httpd.apache.org/docs/current/mod/core.html#serveralias). The default is `localhost`.
+* **`LOCATION`**: The URL path for WebDAV (eg, if set to `/webdav` then clients should connect to `example.com/webdav`). The default is `/`.
+* **`AUTH_TYPE`**: Apache authentication type to use. This can be `Basic` (best choice for HTTPS) or `Digest` (best choice for HTTP). The default is `Basic`.
+* **`REALM`**: Sets [AuthName](https://httpd.apache.org/docs/current/mod/mod_authn_core.html#authname), an identifier that is displayed to clients when they connect. The default is `WebDAV`.
+* **`USERNAME`**: Authenticate with this username (and the password below). This is ignored if you bind mount your own authentication file to `/user.passwd`.
+* **`PASSWORD`**: Authenticate with this password (and the username above). This is ignored if you bind mount your own authentication file to `/user.passwd`.
+* **`ANONYMOUS_METHODS`**: Comma-separated list of HTTP request methods (eg, `GET,POST,OPTIONS,PROPFIND`). Clients can use any method you specify here without authentication. Set to `ALL` to disable authentication. The default is to disallow any anonymous access.
+* **`SSL_CERT`**: Set to `selfsigned` to generate a self-signed certificate and enable Apache's SSL module. If you specify `SERVER_NAMES`, the first domain is set as the Common Name.
+

conf/conf-available/dav.conf

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+DavLockDB "/var/lib/dav/DavLock"
+Alias / "/var/lib/dav/data/"
+<Directory "/var/lib/dav/data/">
+  Dav On
+  Options Indexes FollowSymLinks
+
+  AuthType Basic
+  AuthName "WebDAV"
+  AuthUserFile "/user.passwd"
+  <RequireAny>
+    Require valid-user
+  </RequireAny>
+</Directory>
+
+# These disable redirects on non-GET requests for directories that
+# don't include the trailing slash (for misbehaving clients).
+BrowserMatch "Microsoft Data Access Internet Publishing Provider" redirect-carefully
+BrowserMatch "MS FrontPage" redirect-carefully
+BrowserMatch "^WebDrive" redirect-carefully
+BrowserMatch "^WebDAVFS/1.[01234]" redirect-carefully
+BrowserMatch "^gnome-vfs/1.0" redirect-carefully
+BrowserMatch "^XML Spy" redirect-carefully
+BrowserMatch "^Dreamweaver-WebDAV-SCM1" redirect-carefully
+BrowserMatch " Konqueror/4" redirect-carefully
+BrowserMatch "^gvfs" redirect-carefully

conf/sites-available/default-ssl.conf

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+Listen 443
+<VirtualHost *:443>
+  Protocols h2 http/1.1
+  ServerName localhost
+  DocumentRoot "/var/www/html/"
+  <Directory "/var/www/html/">
+    Require all denied
+  </Directory>
+  CustomLog /proc/self/fd/1 combined
+  ErrorLog /proc/self/fd/2
+  SSLEngine on
+  SSLCertificateFile /cert.pem
+  SSLCertificateKeyFile /privkey.pem
+  SSLProtocol all -SSLv3
+  SSLCipherSuite ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS
+  SSLHonorCipherOrder on
+  SSLSessionTickets off
+</VirtualHost>

conf/sites-available/default.conf

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+<VirtualHost *:80>
+  ServerName localhost
+  DocumentRoot "/var/www/html/"
+  <Directory "/var/www/html/">
+    Require all denied
+  </Directory>
+  CustomLog /proc/self/fd/1 combined
+  ErrorLog /proc/self/fd/2
+  # This lets certain DAV methods work behind an SSL reverse proxy.
+  RequestHeader edit Destination ^https http early
+</VirtualHost>

docker-entrypoint.sh

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+#!/bin/sh
+set -e
+
+# Environment variables that are used if not empty:
+#   SERVER_NAMES
+#   LOCATION
+#   AUTH_TYPE
+#   REALM
+#   USERNAME
+#   PASSWORD
+#   ANONYMOUS_METHODS
+#   SSL_CERT
+
+# Just in case this environment variable has gone missing.
+HTTPD_PREFIX="${HTTPD_PREFIX:-/usr/local/apache2}"
+
+# Configure vhosts.
+if [ "x$SERVER_NAMES" != "x" ]; then
+    # Use first domain as Apache ServerName.
+    SERVER_NAME="${SERVER_NAMES%%,*}"
+    sed -e "s|ServerName .*|ServerName $SERVER_NAME|" \
+        -i "$HTTPD_PREFIX"/conf/sites-available/default*.conf
+
+    # Replace commas with spaces and set as Apache ServerAlias.
+    SERVER_ALIAS="`printf '%s\n' "$SERVER_NAMES" | tr ',' ' '`"
+    sed -e "/ServerName/a\ \ ServerAlias $SERVER_ALIAS" \
+        -i "$HTTPD_PREFIX"/conf/sites-available/default*.conf
+fi
+
+# Configure dav.conf
+if [ "x$LOCATION" != "x" ]; then
+    sed -e "s|Alias .*|Alias $LOCATION /var/lib/dav/data/|" \
+        -i "$HTTPD_PREFIX/conf/conf-available/dav.conf"
+fi
+if [ "x$REALM" != "x" ]; then
+    sed -e "s|AuthName .*|AuthName \"$REALM\"|" \
+        -i "$HTTPD_PREFIX/conf/conf-available/dav.conf"
+else
+    REALM="WebDAV"
+fi
+if [ "x$AUTH_TYPE" != "x" ]; then
+    # Only support "Basic" and "Digest".
+    if [ "$AUTH_TYPE" != "Basic" ] && [ "$AUTH_TYPE" != "Digest" ]; then
+        printf '%s\n' "$AUTH_TYPE: Unknown AuthType" 1>&2
+        exit 1
+    fi
+    sed -e "s|AuthType .*|AuthType $AUTH_TYPE|" \
+        -i "$HTTPD_PREFIX/conf/conf-available/dav.conf"
+fi
+
+# Add password hash, unless "user.passwd" already exists (ie, bind mounted).
+if [ ! -e "/user.passwd" ]; then
+    touch "/user.passwd"
+    # Only generate a password hash if both username and password given.
+    if [ "x$USERNAME" != "x" ] && [ "x$PASSWORD" != "x" ]; then
+        if [ "$AUTH_TYPE" = "Digest" ]; then
+            # Can't run `htdigest` non-interactively, so use other tools.
+            HASH="`printf '%s' "$USERNAME:$REALM:$PASSWORD" | md5sum | awk '{print $1}'`"
+            printf '%s\n' "$USERNAME:$REALM:$HASH" > /user.passwd
+        else
+            htpasswd -B -b -c "/user.passwd" $USERNAME $PASSWORD
+        fi
+    fi
+fi
+
+# If specified, allow anonymous access to specified methods.
+if [ "x$ANONYMOUS_METHODS" != "x" ]; then
+    if [ "$ANONYMOUS_METHODS" = "ALL" ]; then
+        sed -e "s/Require valid-user/Require all granted/" \
+            -i "$HTTPD_PREFIX/conf/conf-available/dav.conf"
+    else
+        ANONYMOUS_METHODS="`printf '%s\n' "$ANONYMOUS_METHODS" | tr ',' ' '`"
+        sed -e "/Require valid-user/a\ \ \ \ Require method $ANONYMOUS_METHODS" \
+            -i "$HTTPD_PREFIX/conf/conf-available/dav.conf"
+    fi
+fi
+
+# If specified, generate a selfsigned certificate.
+if [ "${SSL_CERT:-none}" = "selfsigned" ]; then
+    # Generate self-signed SSL certificate.
+    # If SERVER_NAMES is given, use the first domain as the Common Name.
+    if [ ! -e /privkey.pem ] || [ ! -e /cert.pem ]; then
+        openssl req -x509 -newkey rsa:2048 -days 1000 -nodes \
+            -keyout /privkey.pem -out /cert.pem -subj "/CN=${SERVER_NAME:-selfsigned}"
+    fi
+fi
+
+# This will either be the self-signed certificate generated above or one that
+# has been bind mounted in by the user.
+if [ -e /privkey.pem ] && [ -e /cert.pem ]; then
+    # Enable SSL Apache modules.
+    for i in http2 ssl; do
+        sed -e "/^#LoadModule ${i}_module.*/s/^#//" \
+            -i "$HTTPD_PREFIX/conf/httpd.conf"
+    done
+    # Enable SSL vhost.
+    ln -sf ../sites-available/default-ssl.conf \
+        "$HTTPD_PREFIX/conf/sites-enabled"
+fi
+
+# Create directories for Dav data and lock database.
+[ ! -d "/var/lib/dav/data" ] && mkdir -p "/var/lib/dav/data"
+[ ! -e "/var/lib/dav/DavLock" ] && touch "/var/lib/dav/DavLock"
+chown -R www-data:www-data "/var/lib/dav"
+
+exec "$@"