WebDAV Client for Nim

This is an implementation for some of the basic operations to communicate with a WebDAV server using Nim.

The client is synchronous and is built on top of puppy. On Linux puppy uses libcurl, so install it (e.g. libcurl4-openssl-dev) to build; macOS and Windows use the native HTTP stack and need no extra dependency.

Example usage:

import webdavclient, tables

# Only Basic auth is currently supported. Make sure you're
# connecting over ssl.

let wd = newWebDAV(
  address = "https://dav.example.com",
  username = "username",
  password = "password"
)

# Get the property names available for a resource (propname request)
let possibleProps = wd.props("/", depth = ZERO)

for href, names in possibleProps:
  echo href, ": ", names

# List files.
# Default webdav properties don't require a namespace.
let t = wd.ls(
  "/",
  @[
    "getcontentlength",
    "getlastmodified",
    "creationdate",
    "getcontenttype",
    "nc:has-preview",
    "oc:favorite",
  ],
  namespaces = @[
    ("oc", "http://owncloud.org/ns"),
    ("nc", "http://nextcloud.org/ns")
  ],
  depth = ONE
)

for url, prop in t.pairs:
  echo(url)
  for pname, pval in prop.pairs:
    echo(" - ", pname, ": ", pval)
  echo("---")

# Download a file (buffered in memory, then written to disk)
wd.download(path = "files/example.md", destination = "/home/me/example.md")

# Upload a file
wd.upload(filepath = "files/example.md", destination = "/home/me/example.md")

# Delete a file
wd.rm("files/example.md")

# Create a collection (directory)
wd.mkdir("files/new/")

# Move a file
wd.mv(path = "files/example.md", destination = "files/new/example.md", overwrite = true)

# Copy a file
wd.cp(path = "files/new/example.md", destination = "files/example.md", overwrite = true)

# Set and/or remove properties (PROPPATCH)
discard wd.proppatch(
  "files/example.md",
  setProps = @[("oc:favorite", "1")],
  removeProps = @["oc:tag"],
  namespaces = @[("oc", "http://owncloud.org/ns")]
)

# Take an exclusive write lock (LOCK), then pass the token on writes that
# touch the locked resource. Without the token the server returns 423 Locked.
let lock = wd.lock("files/example.md", owner = "me")
wd.upload(filepath = "files/example.md", destination = "files/example.md", token = lock.token)

# Release the lock (UNLOCK)
wd.unlock("files/example.md", lock.token)