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**Added Missing Operations:**
- COPY - Server-side blob copying via WebDAV COPY method
- PROPERTIES - Retrieve blob metadata (ContentLength, ETag, LastModified)
- ENSURE-STORAGE-EXISTS - Initialize WebDAV directory structure
- SIGN - Generate pre-signed URLs with HMAC-SHA256
- DELETE-RECURSIVE - Delete all blobs matching a prefix
**Structural Changes:**
- Split into two-layer architecture like other providers (S3, Azure, etc.)
- client.go: High-level DavBlobstore implementing storage.Storager interface
- storage_client.go: Low-level StorageClient handling HTTP/WebDAV operations
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…ect names, not basenames.Change low-level Exists to (bool, error), matching Azure/GCS/S3.
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3 tasks
Extend WebDAV signer to support both BOSH-compatible SHA256 HMAC signing and CAPI-compatible MD5 signing via optional signing_method config field. - Add SigningMethod field to config (default: "sha256") - Implement generateSHA256SignedURL() for BOSH (/signed/ paths) - Implement generateMD5SignedURL() for CAPI (/read/, /write/ paths) - Add HEAD verb support - Improve WebDAV compatibility with PROPFIND - Simplify blob path handling for CCNG pre-partitioned IDs - Add comprehensive tests for both signing methods
1. Simple blob IDs (like my-blob) get stored with hash-prefix directory structure (8c/my-blob) 2. Pre-partitioned blob IDs (like ru/by/ruby-buildpack from CCNG) are stored as-is 3. Both PUT and COPY operations correctly create parent directories by using the built path (with hash prefix) when calling ensureObjectParentsExist
Preserve endpoint base paths when constructing signed URLs to ensure
directory keys (cc-droplets, cc-packages, etc.) are included in the
final URL path. The signer now combines:
- Path prefix (/signed/, /read/, or /write/)
- Endpoint base path (directory key from config)
- Blob ID with hash prefix
This ensures storage-cli and fog/webdav clients store blobs at
identical physical locations for backward compatibility.
Also fixed DAV integration tests to validate signed URL generation
without requiring nginx infrastructure in the test environment.
5 tasks
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Added Missing Operations:
Structural Changes: