dav4jvm

dav4jvm is a WebDAV/CalDAV/CardDAV library for JVM (Java/Kotlin). It has been developed for DAVx⁵ initially.

Repository: https://github.com/bitfireAT/dav4jvm/

Generated KDoc: https://bitfireat.github.io/dav4jvm/

For questions, suggestions etc. use Github discussions. We're happy about contributions, but please let us know in the discussions before. Then make the changes in your own repository and send a pull request.

Installation

You can use jitpack.io to include dav4jvm:

allprojects {
    repositories {
        maven { url 'https://jitpack.io' }
    }
}
dependencies {
    implementation 'com.github.bitfireAT:dav4jvm:<version or commit>'  // see tags for latest version, like 1.0, or use the latest commit ID from main branch
    //implementation 'com.github.bitfireAT:dav4jvm:main-SNAPSHOT'      // use it only for testing because it doesn't generate reproducible builds
}

dav4jvm needs a working XmlPullParser (XPP). On Android, the system already comes with XPP and you don't need to include one; on other systems, you may need to import for instance org.ogce:xpp3 to get dav4jvm to work.

Usage

First, you'll need to set up an OkHttp instance. Use BasicDigestAuthHandler to configure the credentials:

val authHandler = BasicDigestAuthHandler(
    domain = null, // Optional, to only authenticate against hosts with this domain.
    username = "user1",
    password = "pass1"
)
val okHttpClient = OkHttpClient.Builder()
    .followRedirects(false)
    .authenticator(authHandler)
    .addNetworkInterceptor(authHandler)
    .build()

Files

Here's an example to create and download a file:

val location = "https://example.com/webdav/hello.txt".toHttpUrl()
val davCollection = DavCollection(account.requireClient(), location)

// Create a text file
davCollection.put("World".toRequestBody(contentType = "text/plain".toMediaType()) { response ->
    // Upload successful!
}

// Download a text file
davCollection.get(accept = "", headers = null) { response ->
    response.body?.string()
    // Download successful!
}

To list a folder's contents, you need to pass in which properties to fetch:

val location = "https://example.com/webdav/".toHttpUrl()
val davCollection = DavCollection(account.requireClient(), location)

davCollection.propfind(depth = 1, DisplayName.NAME, GetLastModified.NAME) { response, relation ->
    // This callback will be called for every file in the folder.
    // Use `response.properties` to access the successfully retrieved properties.
}

Custom properties

If you use custom WebDAV properties, register the corresponding factories with PropertyRegistry.register() before calling other dav4jvm methods.

Contact / License

dav4jvm is licensed under Mozilla Public License, v. 2.0.