client

package
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 Go to latest Published: Jan 13, 2014 License: Apache-2.0 Imports: 36 Imported by: 0

Documentation

Overview

Package client implements a Camlistore client.

Index

Constants

This section is empty.

Variables

View Source 
var ErrNoSearchRoot = errors.New("client: server doesn't support search")

ErrNoSearchRoot is returned by SearchRoot if the server doesn't support search.

View Source 
var ErrNoStorageGeneration = errors.New("client: server doesn't report a storage generation")

ErrNoStorageGeneration is returned by StorageGeneration if the server doesn't report a storage generation value.

View Source 
var ErrNoSync = errors.New("client: server has no sync handlers")

ErrNoSync is returned by SyncHandlers if the server does not advertise syncs.

Functions

func AddFlags 

func AddFlags()

func ExplicitServer 

func ExplicitServer() string

ExplicitServer returns the blobserver given in the flags, if any.

func ListMissingDestinationBlobs 

func ListMissingDestinationBlobs(destMissing chan<- blob.SizedRef, sizeMismatch chan<- blob.Ref, srcch, dstch <-chan blob.SizedRef)

ListMissingDestinationBlobs reads from 'srcch' and 'dstch' (sorted enumerations of blobs from two blob servers) and sends to 'destMissing' any blobs which appear on the source but not at the destination. destMissing is closed at the end. sizeMismatch is never closed.

Types

type ByCountAndBytes 

type ByCountAndBytes struct {
	Blobs int
	Bytes int64
}

func (*ByCountAndBytes) String 

func (bb *ByCountAndBytes) String() string

type Client 

type Client struct {

	// if set, we also skip the check against trustedCerts
	InsecureTLS bool
	// contains filtered or unexported fields
}

A Client provides access to a Camlistore server.

func New 

func New(server string) *Client

New returns a new Camlistore Client. The provided server is either "host:port" (assumed http, not https) or a URL prefix, with or without a path, or a server alias from the client configuration file. A server alias should not be confused with a hostname, therefore it cannot contain any colon or period. Errors are not returned until subsequent operations.

func NewFromShareRoot 

func NewFromShareRoot(shareBlobURL string, opts ...ClientOption) (c *Client, target blob.Ref, err error)

NewFromShareRoot uses shareBlobURL to set up and return a client that will be used to fetch shared blobs.

func NewOrFail 

func NewOrFail() *Client

func (*Client) BlobRoot 

func (c *Client) BlobRoot() (string, error)

BlobRoot returns the server's blobroot URL prefix. If the client was constructed with an explicit path, that path is used. Otherwise the server's default advertised blobRoot is used.

func (*Client) Describe 

func (c *Client) Describe(req *search.DescribeRequest) (*search.DescribeResponse, error)

func (*Client) DialFunc 

func (c *Client) DialFunc() func(network, addr string) (net.Conn, error)

DialFunc returns the adequate dial function, depending on whether SSL is required, the client's config has some trusted certs, and we're on android. If the client's config has some trusted certs, the server's certificate will be checked against those in the config after the TLS handshake.

func (*Client) EnumerateBlobs 

func (c *Client) EnumerateBlobs(ctx *context.Context, dest chan<- blob.SizedRef, after string, limit int) error

func (*Client) EnumerateBlobsOpts 

func (c *Client) EnumerateBlobsOpts(ctx *context.Context, ch chan<- blob.SizedRef, opts EnumerateOpts) error

Note: closes ch.

func (*Client) FetchSchemaBlob 

func (c *Client) FetchSchemaBlob(b blob.Ref) (*schema.Blob, error)

func (*Client) FetchStreaming 

func (c *Client) FetchStreaming(b blob.Ref) (io.ReadCloser, int64, error)

func (*Client) FetchVia 

func (c *Client) FetchVia(b blob.Ref, v []blob.Ref) (body io.ReadCloser, size int64, err error)

func (*Client) FileHasContents 

func (c *Client) FileHasContents(f, wholeRef blob.Ref) bool

FileHasContents returns true iff f refers to a "file" or "bytes" schema blob, the server is configured with a "download helper", and the server responds that all chunks of 'f' are available and match the digest of wholeRef.

func (*Client) GetPermanodesWithAttr 

func (c *Client) GetPermanodesWithAttr(req *search.WithAttrRequest) (*search.WithAttrResponse, error)

func (*Client) GetRecentPermanodes 

func (c *Client) GetRecentPermanodes(req *search.RecentRequest) (*search.RecentResponse, error)

GetRecentPermanodes implements search.IGetRecentPermanodes against a remote server over HTTP.

func (*Client) IsIgnoredFile 

func (c *Client) IsIgnoredFile(fullpath string) bool

IsIgnoredFile returns whether the file at fullpath should be ignored by camput. The fullpath is checked against the ignoredFiles list, trying the following rules in this order: 1) star-suffix style matching (.e.g *.jpg). 2) Shell pattern match as done by http://golang.org/pkg/path/filepath/#Match 3) If the pattern is an absolute path to a directory, fullpath matches if it is that directory or a child of it. 4) If the pattern is a relative path, fullpath matches if it has pattern as a path component (i.e the pattern is a part of fullpath that fits exactly between two path separators).

func (*Client) ReceiveBlob 

func (c *Client) ReceiveBlob(br blob.Ref, source io.Reader) (blob.SizedRef, error)

func (*Client) RemoveBlob 

func (c *Client) RemoveBlob(b blob.Ref) error

Remove the single blob. An error is returned if the server failed to remove the blob. Removing a non-existent blob isn't an error.

func (*Client) RemoveBlobs 

func (c *Client) RemoveBlobs(blobs []blob.Ref) error

Remove the list of blobs. An error is returned if the server failed to remove a blob. Removing a non-existent blob isn't an error.

func (*Client) Search 

func (c *Client) Search(req *search.SearchQuery) (*search.SearchResult, error)

func (*Client) SearchExistingFileSchema 

func (c *Client) SearchExistingFileSchema(wholeRef blob.Ref) (blob.Ref, error)

SearchExistingFileSchema does a search query looking for an existing file with entire contents of wholeRef, then does a HEAD request to verify the file still exists on the server. If so, it returns that file schema's blobref.

May return (zero, nil) on ENOENT. A non-nil error is only returned if there were problems searching.

func (*Client) SearchRoot 

func (c *Client) SearchRoot() (string, error)

SearchRoot returns the server's search handler. If the server isn't running an index and search handler, the error will be ErrNoSearchRoot.

func (*Client) SecretRingFile 

func (c *Client) SecretRingFile() string

SecretRingFile returns the filename to the user's GPG secret ring. The value comes from either a command-line flag, the CAMLI_SECRET_RING environment variable, the client config file's "identitySecretRing" value, or the operating system default location.

func (*Client) SetHTTPClient 

func (c *Client) SetHTTPClient(client *http.Client)

SetHTTPClient sets the Camlistore client's HTTP client. If nil, the default HTTP client is used.

func (*Client) SetHaveCache 

func (c *Client) SetHaveCache(cache HaveCache)

func (*Client) SetLogger 

func (c *Client) SetLogger(logger *log.Logger)

func (*Client) SetupAuth 

func (c *Client) SetupAuth() error

SetupAuth sets the client's authMode. It tries from the environment first if we're on android or in dev mode, and then from the client configuration.

func (*Client) SetupAuthFromString 

func (c *Client) SetupAuthFromString(a string) error

SetupAuthFromString configures the clients authentication mode from an explicit auth string.

func (*Client) Signer 

func (c *Client) Signer() (*schema.Signer, error)

func (*Client) SignerPublicKeyBlobref 

func (c *Client) SignerPublicKeyBlobref() blob.Ref

SignerPublicKeyBlobref returns the blobref of signer's public key. The blobref may not be valid (zero blob.Ref) if e.g the configuration is invalid or incomplete.

func (*Client) SimpleEnumerateBlobs 

func (c *Client) SimpleEnumerateBlobs(ctx *context.Context, ch chan<- blob.SizedRef) error

Note: closes ch.

func (*Client) StatBlobs 

func (c *Client) StatBlobs(dest chan<- blob.SizedRef, blobs []blob.Ref) error

func (*Client) Stats 

func (c *Client) Stats() Stats

func (*Client) StorageGeneration 

func (c *Client) StorageGeneration() (string, error)

StorageGeneration returns the server's unique ID for its storage generation, reset whenever storage is reset, moved, or partially lost.

This is a value that can be used in client cache keys to add certainty that they're talking to the same instance as previously.

If the server doesn't return such a value, the error will be ErrNoStorageGeneration.

func (*Client) SyncHandlers 

func (c *Client) SyncHandlers() ([]*SyncInfo, error)

SyncHandlers returns the server's sync handlers "from" and "to" prefix URLs. If the server isn't running any sync handler, the error will be ErrNoSync.

func (*Client) TLSConfig 

func (c *Client) TLSConfig() (*tls.Config, error)

TLSConfig returns the correct tls.Config depending on whether SSL is required, the client's config has some trusted certs, and we're on android.

func (*Client) TransportForConfig 

func (c *Client) TransportForConfig(tc *TransportConfig) http.RoundTripper

TransportForConfig returns a transport for the client, setting the correct Proxy, Dial, and TLSClientConfig if needed. It does not mutate c. It is the caller's responsibility to then use that transport to set the client's httpClient with SetHTTPClient.

func (*Client) Upload 

func (c *Client) Upload(h *UploadHandle) (*PutResult, error)

func (*Client) UploadAndSignBlob 

func (c *Client) UploadAndSignBlob(b schema.AnyBlob) (*PutResult, error)

func (*Client) UploadBlob 

func (c *Client) UploadBlob(b schema.AnyBlob) (*PutResult, error)

func (*Client) UploadNewPermanode 

func (c *Client) UploadNewPermanode() (*PutResult, error)

func (*Client) UploadPlannedPermanode 

func (c *Client) UploadPlannedPermanode(key string, sigTime time.Time) (*PutResult, error)

type ClientOption 

type ClientOption interface {
	// contains filtered or unexported methods
}

func OptionInsecure 

func OptionInsecure(v bool) ClientOption

func OptionTrustedCert 

func OptionTrustedCert(cert string) ClientOption

type EnumerateOpts 

type EnumerateOpts struct {
	After   string
	MaxWait time.Duration // how long to poll for (second granularity), waiting for any blob, or 0 for no limit
	Limit   int           // if non-zero, the max blobs to return
}

type HaveCache 

type HaveCache interface {
	StatBlobCache(br blob.Ref) (size int64, ok bool)
	NoteBlobExists(br blob.Ref, size int64)
}

A HaveCache caches whether a remote blobserver has a blob.

type PutResult 

type PutResult struct {
	BlobRef blob.Ref
	Size    int64
	Skipped bool // already present on blobserver
}

func (*PutResult) SizedBlobRef 

func (pr *PutResult) SizedBlobRef() blob.SizedRef

type ResponseFormatError 

type ResponseFormatError error

type Stats 

type Stats struct {
	// The number of uploads that were requested, but perhaps
	// not actually performed if the server already had the items.
	UploadRequests ByCountAndBytes

	// The uploads which were actually sent to the blobserver
	// due to the server not having the blobs
	Uploads ByCountAndBytes
}

func (*Stats) String 

func (s *Stats) String() string

type SyncInfo 

type SyncInfo struct {
	From    string
	To      string
	ToIndex bool // whether this sync is from a blob storage to an index
}

SyncInfo holds the data that were acquired with a discovery and that are relevant to a syncHandler.

type TransportConfig 

type TransportConfig struct {
	// Proxy optionally specifies the Proxy for the transport. Useful with
	// camput for debugging even localhost requests.
	Proxy   func(*http.Request) (*url.URL, error)
	Verbose bool // Verbose enables verbose logging of HTTP requests.
}

TransportConfig contains options for SetupTransport.

type UploadHandle 

type UploadHandle struct {
	BlobRef  blob.Ref
	Size     int64 // or -1 if size isn't known
	Contents io.Reader
	Vivify   bool
}

func NewUploadHandleFromString 

func NewUploadHandleFromString(data string) *UploadHandle

Source Files

View all Source files

Directories

Path Synopsis
Package android contains code specific to running the Camlistore client code as a child process on Android.
 Package android contains code specific to running the Camlistore client code as a child process on Android.

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