ipfs

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Published: May 17, 2016 License: MIT Imports: 0 Imported by: 0

README

IPFS implementation in Go

GoDoc Build Status

IPFS is a global, versioned, peer-to-peer filesystem. It combines good ideas from Git, BitTorrent, Kademlia, SFS, and the Web. It is like a single bittorrent swarm, exchanging git objects. IPFS provides an interface as simple as the HTTP web, but with permanence built in. You can also mount the world at /ipfs.

For more info see: https://github.com/ipfs/ipfs.

Please put all issues regarding IPFS design in the ipfs repo issues. Please put all issues regarding Go IPFS implementation in this repo.

Table of Contents

Security Issues

The IPFS protocol and its implementations are still in heavy development. This means that there may be problems in our protocols, or there may be mistakes in our implementations. And -- though IPFS is not production-ready yet -- many people are already running nodes in their machines. So we take security vulnerabilities very seriously. If you discover a security issue, please bring it to our attention right away!

If you find a vulnerability that may affect live deployments -- for example, by exposing a remote execution exploit -- please send your report privately to security@ipfs.io. Please DO NOT file a public issue.

If the issue is a protocol weakness that cannot be immediately exploited or something not yet deployed, just discuss it openly.

Install

The canonical download instructions for IPFS are over at: http://ipfs.io/docs/install/. It is highly suggested you follow those instructions if you are not interested in working on IPFS development.

Install prebuilt packages

We host prebuilt binaries over at our distributions page.

From there:

  • Click the blue "Download go-ipfs" on the right side of the page.
  • Open/extract the archive.
  • Move ipfs to your path (install.sh can do it for you).
Build from Source
Install Go

First, you'll need Go. If you don't have it: Download Go 1.5.2+. Go 1.6 is not yet supported.

You'll need to add Go's bin directories to your $PATH environment variable e.g., by adding these lines to your /etc/profile (for a system-wide installation) or $HOME/.profile:

export PATH=$PATH:/usr/local/go/bin
export PATH=$PATH:$GOPATH/bin

(If you run into trouble, see the Go install instructions).

Download + Compile IPFS

go-ipfs differs from the vanilla go get flow: it uses gx/gx-go for dependency management.

First download go-ipfs without installing:

$ go get -d github.com/ipfs/go-ipfs

$ cd $GOPATH/src/github.com/ipfs/go-ipfs

Then install go-ipfs and its dependencies, including gx and gx-go:

$ make install
Troubleshooting
  • Separate instructions are available for building on Windows.
  • git is required in order for go get to fetch all dependencies.
  • Package managers often contain out-of-date golang packages. Ensure that go version reports at least 1.5.2. See above for how to install go.
  • If you are interested in development, please install the development dependencies as well.
  • WARNING: Older versions of OSX FUSE (for Mac OS X) can cause kernel panics when mounting! We strongly recommend you use the latest version of OSX FUSE. (See https://github.com/ipfs/go-ipfs/issues/177)
  • For more details on setting up FUSE (so that you can mount the filesystem), see the docs folder.
  • Shell command completion is available in misc/completion/ipfs-completion.bash. Read docs/command-completion.md to learn how to install it.
  • See the init examples for how to connect IPFS to systemd or whatever init system your distro uses.
Development Dependencies

If you make changes to the protocol buffers, you will need to install the protoc compiler.

Updating

IPFS has an updating tool that can be accessed through ipfs update. The tool is not installed alongside IPFS in order to keep that logic independent of the main codebase. To install ipfs update, either download it here or install it from source with go get -u github.com/ipfs/ipfs-update.

Usage

  ipfs - Global p2p merkle-dag filesystem.

  ipfs [<flags>] <command> [<arg>] ...

SUBCOMMANDS
  BASIC COMMANDS
    init          Initialize ipfs local configuration
    add <path>    Add a file to ipfs
    cat <ref>     Show ipfs object data
    get <ref>     Download ipfs objects
    ls <ref>      List links from an object
    refs <ref>    List hashes of links from an object

  DATA STRUCTURE COMMANDS
    block         Interact with raw blocks in the datastore
    object        Interact with raw dag nodes
    files         Interact with objects as if they were a unix filesystem

  ADVANCED COMMANDS
    daemon        Start a long-running daemon process
    mount         Mount an ipfs read-only mountpoint
    resolve       Resolve any type of name
    name          Publish or resolve IPNS names
    dns           Resolve DNS links
    pin           Pin objects to local storage
    repo          Manipulate an IPFS repository

  NETWORK COMMANDS
    id            Show info about ipfs peers
    bootstrap     Add or remove bootstrap peers
    swarm         Manage connections to the p2p network
    dht           Query the DHT for values or peers
    ping          Measure the latency of a connection
    diag          Print diagnostics

  TOOL COMMANDS
    config        Manage configuration
    version       Show ipfs version information
    update        Download and apply go-ipfs updates
    commands      List all available commands

  Use 'ipfs <command> --help' to learn more about each command.

  ipfs uses a repository in the local file system. By default, the repo is located
  at ~/.ipfs. To change the repo location, set the $IPFS_PATH environment variable:

    export IPFS_PATH=/path/to/ipfsrepo

Getting Started

See also: http://ipfs.io/docs/getting-started/

To start using IPFS, you must first initialize IPFS's config files on your system, this is done with ipfs init. See ipfs init --help for information on the optional arguments it takes. After initialization is complete, you can use ipfs mount, ipfs add and any of the other commands to explore!

Some things to try

Basic proof of 'ipfs working' locally:

echo "hello world" > hello
ipfs add hello
# This should output a hash string that looks something like:
# QmT78zSuBmuS4z925WZfrqQ1qHaJ56DQaTfyMUF7F8ff5o
ipfs cat <that hash>
Docker usage

An IPFS docker image is hosted at hub.docker.com/r/ipfs/go-ipfs. To make files visible inside the container you need to mount a host directory with the -v option to docker. Choose a directory that you want to use to import/export files from IPFS. You should also choose a directory to store IPFS files that will persist when you restart the container.

export ipfs_staging=</absolute/path/to/somewhere/>
export ipfs_data=</absolute/path/to/somewhere_else/>

Make sure docker can access these folders:

sudo chmod -R 777 /absolute/path/to/somewhere/
sudo chmod -R 777 /absolute/path/to/somewhere_else/

Start a container running ipfs and expose ports 4001, 5001 and 8080:

docker run -d --name ipfs_host -v $ipfs_staging:/export -v $ipfs_data:/data/ipfs -p 8080:8080 -p 4001:4001 -p 5001:5001 ipfs/go-ipfs:latest

Watch the ipfs log:

docker logs -f ipfs_host

Wait for ipfs to start. ipfs is running when you see:

Gateway (readonly) server
listening on /ip4/0.0.0.0/tcp/8080

You can now stop watching the log.

Run ipfs commands:

docker exec ipfs_host ipfs <args...>

For example: connect to peers

docker exec ipfs_host ipfs swarm peers

Add files:

cp -r <something> $ipfs_staging
docker exec ipfs_host ipfs add -r /export/<something>

Stop the running container:

docker stop ipfs_host
Docker usage with VirtualBox/boot2docker (OSX and Windows)

Since docker is running in the boot2docker VM, you need to forward relevant ports from the VM to your host for IPFS to act normally. This is accomplished with the following command:

boot2docker ssh -L 5001:localhost:5001 -L 4001:localhost:4001 -L 8080:localhost:8080 -fN
Troubleshooting

If you have previously installed IPFS before and you are running into problems getting a newer version to work, try deleting (or backing up somewhere else) your IPFS config directory (~/.ipfs by default) and rerunning ipfs init. This will reinitialize the config file to its defaults and clear out the local datastore of any bad entries.

For any other problems, check the issues list and if you dont see your problem there, either come talk to us on irc (freenode #ipfs) or file an issue of your own!

Contributing

Please see Contribute.md!

Todo

An IPFS alpha version has been released in February 2015. Things left to be done are all marked as issues.

License

MIT

Documentation

Overview

IPFS is a global, versioned, peer-to-peer filesystem

There are sub-packages within the ipfs package for various low-level utilities, which are in turn assembled into:

core/...:

The low-level API that gives consumers all the knobs they need,
which we try hard to keep stable.

shell/...:

The high-level API that gives consumers easy access to common
operations (e.g. create a file node from a reader without wrapping
with metadata). We work really hard to keep this stable.

Then on top of the core/... and shell/... Go APIs, we have:

cmd/...:

Command-line executables

test/...:

Integration tests, etc.

To avoid cyclic imports, imports should never pull in higher-level APIs into a lower-level package. For example, you could import all of core and shell from cmd/... or test/..., but you couldn't import any of shell from core/....

Directories

Path Synopsis
Godeps
_workspace/src/bazil.org/fuse
Package fuse enables writing FUSE file systems on Linux, OS X, and FreeBSD.
Package fuse enables writing FUSE file systems on Linux, OS X, and FreeBSD.
_workspace/src/bazil.org/fuse/fs/bench
Package bench contains benchmarks.
Package bench contains benchmarks.
_workspace/src/bazil.org/fuse/hellofs
Hellofs implements a simple "hello world" file system.
Hellofs implements a simple "hello world" file system.
_workspace/src/bazil.org/fuse/syscallx
Package syscallx provides wrappers that make syscalls on various platforms more interoperable.
Package syscallx provides wrappers that make syscalls on various platforms more interoperable.
_workspace/src/github.com/briantigerchow/pubsub
Package pubsub implements a simple multi-topic pub-sub library.
Package pubsub implements a simple multi-topic pub-sub library.
_workspace/src/github.com/cenkalti/backoff
Package backoff implements backoff algorithms for retrying operations.
Package backoff implements backoff algorithms for retrying operations.
_workspace/src/github.com/codahale/hdrhistogram
Package hdrhistogram provides an implementation of Gil Tene's HDR Histogram data structure.
Package hdrhistogram provides an implementation of Gil Tene's HDR Histogram data structure.
_workspace/src/github.com/codahale/metrics
Package metrics provides minimalist instrumentation for your applications in the form of counters and gauges.
Package metrics provides minimalist instrumentation for your applications in the form of counters and gauges.
_workspace/src/github.com/codahale/metrics/runtime
Package runtime registers gauges and counters for various operationally important aspects of the Go runtime.
Package runtime registers gauges and counters for various operationally important aspects of the Go runtime.
_workspace/src/github.com/dustin/go-humanize
Package humanize converts boring ugly numbers to human-friendly strings and back.
Package humanize converts boring ugly numbers to human-friendly strings and back.
_workspace/src/github.com/facebookgo/atomicfile
Package atomicfile provides the ability to write a file with an eventual rename on Close.
Package atomicfile provides the ability to write a file with an eventual rename on Close.
_workspace/src/github.com/hashicorp/golang-lru
This package provides a simple LRU cache.
This package provides a simple LRU cache.
_workspace/src/github.com/ipfs/go-datastore/flatfs
Package flatfs is a Datastore implementation that stores all objects in a two-level directory structure in the local file system, regardless of the hierarchy of the keys.
Package flatfs is a Datastore implementation that stores all objects in a two-level directory structure in the local file system, regardless of the hierarchy of the keys.
_workspace/src/github.com/ipfs/go-datastore/fs
Package fs is a simple Datastore implementation that stores keys are directories and files, mirroring the key.
Package fs is a simple Datastore implementation that stores keys are directories and files, mirroring the key.
_workspace/src/github.com/ipfs/go-datastore/keytransform
Package keytransform introduces a Datastore Shim that transforms keys before passing them to its child.
Package keytransform introduces a Datastore Shim that transforms keys before passing them to its child.
_workspace/src/github.com/ipfs/go-datastore/measure
Package measure provides a Datastore wrapper that records metrics using github.com/codahale/metrics.
Package measure provides a Datastore wrapper that records metrics using github.com/codahale/metrics.
_workspace/src/github.com/ipfs/go-datastore/mount
Package mount provides a Datastore that has other Datastores mounted at various key prefixes.
Package mount provides a Datastore that has other Datastores mounted at various key prefixes.
_workspace/src/github.com/ipfs/go-datastore/namespace
Package namespace introduces a namespace Datastore Shim, which basically mounts the entire child datastore under a prefix.
Package namespace introduces a namespace Datastore Shim, which basically mounts the entire child datastore under a prefix.
_workspace/src/github.com/ipfs/go-datastore/syncmount
Package mount provides a Datastore that has other Datastores mounted at various key prefixes and is threadsafe
Package mount provides a Datastore that has other Datastores mounted at various key prefixes and is threadsafe
_workspace/src/github.com/jbenet/go-context/frac
Package ctxext provides multiple useful context constructors.
Package ctxext provides multiple useful context constructors.
_workspace/src/github.com/jbenet/go-context/io
Package ctxio provides io.Reader and io.Writer wrappers that respect context.Contexts.
Package ctxio provides io.Reader and io.Writer wrappers that respect context.Contexts.
_workspace/src/github.com/jbenet/go-is-domain
Package isdomain package allows users to check whether strings represent domain names.
Package isdomain package allows users to check whether strings represent domain names.
_workspace/src/github.com/olekukonko/ts
This module is a Terminal API for the Go Programming Language.
This module is a Terminal API for the Go Programming Language.
_workspace/src/github.com/rs/cors
Package cors is net/http handler to handle CORS related requests as defined by http://www.w3.org/TR/cors/ You can configure it by passing an option struct to cors.New: c := cors.New(cors.Options{ AllowedOrigins: []string{"foo.com"}, AllowedMethods: []string{"GET", "POST", "DELETE"}, AllowCredentials: true, }) Then insert the handler in the chain: handler = c.Handler(handler) See Options documentation for more options.
Package cors is net/http handler to handle CORS related requests as defined by http://www.w3.org/TR/cors/ You can configure it by passing an option struct to cors.New: c := cors.New(cors.Options{ AllowedOrigins: []string{"foo.com"}, AllowedMethods: []string{"GET", "POST", "DELETE"}, AllowCredentials: true, }) Then insert the handler in the chain: handler = c.Handler(handler) See Options documentation for more options.
_workspace/src/github.com/satori/go.uuid
Package uuid provides implementation of Universally Unique Identifier (UUID).
Package uuid provides implementation of Universally Unique Identifier (UUID).
_workspace/src/github.com/steakknife/hamming
hamming distance calculations in Go https://github.com/steakknife/hamming Copyright © 2014, 2015 Barry Allard MIT license Usage The functions are named (CountBits)?(Byte|Uint64)s?.
hamming distance calculations in Go https://github.com/steakknife/hamming Copyright © 2014, 2015 Barry Allard MIT license Usage The functions are named (CountBits)?(Byte|Uint64)s?.
_workspace/src/github.com/syndtr/goleveldb/leveldb
Package leveldb provides implementation of LevelDB key/value database.
Package leveldb provides implementation of LevelDB key/value database.
_workspace/src/github.com/syndtr/goleveldb/leveldb/cache
Package cache provides interface and implementation of a cache algorithms.
Package cache provides interface and implementation of a cache algorithms.
_workspace/src/github.com/syndtr/goleveldb/leveldb/comparer
Package comparer provides interface and implementation for ordering sets of data.
Package comparer provides interface and implementation for ordering sets of data.
_workspace/src/github.com/syndtr/goleveldb/leveldb/errors
Package errors provides common error types used throughout leveldb.
Package errors provides common error types used throughout leveldb.
_workspace/src/github.com/syndtr/goleveldb/leveldb/filter
Package filter provides interface and implementation of probabilistic data structure.
Package filter provides interface and implementation of probabilistic data structure.
_workspace/src/github.com/syndtr/goleveldb/leveldb/iterator
Package iterator provides interface and implementation to traverse over contents of a database.
Package iterator provides interface and implementation to traverse over contents of a database.
_workspace/src/github.com/syndtr/goleveldb/leveldb/journal
Package journal reads and writes sequences of journals.
Package journal reads and writes sequences of journals.
_workspace/src/github.com/syndtr/goleveldb/leveldb/memdb
Package memdb provides in-memory key/value database implementation.
Package memdb provides in-memory key/value database implementation.
_workspace/src/github.com/syndtr/goleveldb/leveldb/opt
Package opt provides sets of options used by LevelDB.
Package opt provides sets of options used by LevelDB.
_workspace/src/github.com/syndtr/goleveldb/leveldb/storage
Package storage provides storage abstraction for LevelDB.
Package storage provides storage abstraction for LevelDB.
_workspace/src/github.com/syndtr/goleveldb/leveldb/table
Package table allows read and write sorted key/value.
Package table allows read and write sorted key/value.
_workspace/src/github.com/syndtr/goleveldb/leveldb/util
Package util provides utilities used throughout leveldb.
Package util provides utilities used throughout leveldb.
_workspace/src/github.com/syndtr/gosnappy/snappy
Package snappy implements the snappy block-based compression format.
Package snappy implements the snappy block-based compression format.
_workspace/src/github.com/whyrusleeping/chunker
Package chunker implements Content Defined Chunking (CDC) based on a rolling Rabin Checksum.
Package chunker implements Content Defined Chunking (CDC) based on a rolling Rabin Checksum.
_workspace/src/gopkg.in/fsnotify.v1
Package fsnotify provides a platform-independent interface for file system notifications.
Package fsnotify provides a platform-independent interface for file system notifications.
package blocks contains the lowest level of ipfs data structures, the raw block with a checksum.
package blocks contains the lowest level of ipfs data structures, the raw block with a checksum.
blockstore
package blockstore implements a thin wrapper over a datastore, giving a clean interface for Getting and Putting block objects.
package blockstore implements a thin wrapper over a datastore, giving a clean interface for Getting and Putting block objects.
bloom
package bloom implements a simple bloom filter.
package bloom implements a simple bloom filter.
key
set
package set contains various different types of 'BlockSet's
package set contains various different types of 'BlockSet's
package blockservice implements a BlockService interface that provides a single GetBlock/AddBlock interface that seamlessly retrieves data either locally or from a remote peer through the exchange.
package blockservice implements a BlockService interface that provides a single GetBlock/AddBlock interface that seamlessly retrieves data either locally or from a remote peer through the exchange.
cmd
ipfs
cmd/ipfs implements the primary CLI binary for ipfs
cmd/ipfs implements the primary CLI binary for ipfs
seccat
package main provides an implementation of netcat using the secio package.
package main provides an implementation of netcat using the secio package.
cli
Package core implements the IpfsNode object and related methods.
Package core implements the IpfsNode object and related methods.
commands
Package commands implements the IPFS command interface Using github.com/ipfs/go-ipfs/commands to define the command line and HTTP APIs.
Package commands implements the IPFS command interface Using github.com/ipfs/go-ipfs/commands to define the command line and HTTP APIs.
corehttp
Package corehttp provides utilities for the webui, gateways, and other high-level HTTP interfaces to IPFS.
Package corehttp provides utilities for the webui, gateways, and other high-level HTTP interfaces to IPFS.
corerepo
Package corerepo provides pinning and garbage collection for local IPFS block services.
Package corerepo provides pinning and garbage collection for local IPFS block services.
package diagnostics implements a network diagnostics service that allows a request to traverse the network and gather information on every node connected to it.
package diagnostics implements a network diagnostics service that allows a request to traverse the network and gather information on every node connected to it.
pb
Package diagnostics_pb is a generated protocol buffer package.
Package diagnostics_pb is a generated protocol buffer package.
package exchange defines the IPFS Exchange interface
package exchange defines the IPFS Exchange interface
bitswap
package bitswap implements the IPFS Exchange interface with the BitSwap bilateral exchange protocol.
package bitswap implements the IPFS Exchange interface with the BitSwap bilateral exchange protocol.
bitswap/decision
package decision implements the decision engine for the bitswap service.
package decision implements the decision engine for the bitswap service.
bitswap/message/pb
Package bitswap_message_pb is a generated protocol buffer package.
Package bitswap_message_pb is a generated protocol buffer package.
bitswap/wantlist
package wantlist implements an object for bitswap that contains the keys that a given peer wants.
package wantlist implements an object for bitswap that contains the keys that a given peer wants.
offline
package offline implements an object that implements the exchange interface but returns nil values to every request.
package offline implements an object that implements the exchange interface but returns nil values to every request.
fuse
ipns
package fuse/ipns implements a fuse filesystem that interfaces with ipns, the naming system for ipfs.
package fuse/ipns implements a fuse filesystem that interfaces with ipns, the naming system for ipfs.
mount
package mount provides a simple abstraction around a mount point
package mount provides a simple abstraction around a mount point
readonly
package fuse/readonly implements a fuse filesystem to access files stored inside of ipfs.
package fuse/readonly implements a fuse filesystem to access files stored inside of ipfs.
package importer implements utilities used to create ipfs DAGs from files and readers
package importer implements utilities used to create ipfs DAGs from files and readers
chunk
package chunk implements streaming block splitters
package chunk implements streaming block splitters
package merkledag implements the ipfs Merkle DAG datastructures.
package merkledag implements the ipfs Merkle DAG datastructures.
pb
Package merkledag_pb is a generated protocol buffer package.
Package merkledag_pb is a generated protocol buffer package.
traverse
Package traverse provides merkledag traversal functions
Package traverse provides merkledag traversal functions
package mfs implements an in memory model of a mutable ipfs filesystem.
package mfs implements an in memory model of a mutable ipfs filesystem.
Package namesys implements resolvers and publishers for the IPFS naming system (IPNS).
Package namesys implements resolvers and publishers for the IPFS naming system (IPNS).
pb
Package namesys_pb is a generated protocol buffer package.
Package namesys_pb is a generated protocol buffer package.
Package path implements utilities for resolving paths within ipfs.
Package path implements utilities for resolving paths within ipfs.
pin
package pin implements structures and methods to keep track of which objects a user wants to keep stored locally.
package pin implements structures and methods to keep track of which objects a user wants to keep stored locally.
gc
internal/pb
Package pb is a generated protocol buffer package.
Package pb is a generated protocol buffer package.
config
package config implements the ipfs config file datastructures and utilities.
package config implements the ipfs config file datastructures and utilities.
fsrepo
package fsrepo TODO explain the package roadmap...
package fsrepo TODO explain the package roadmap...
package routing defines the interface for a routing system used by ipfs.
package routing defines the interface for a routing system used by ipfs.
dht
Package dht implements a distributed hash table that satisfies the ipfs routing interface.
Package dht implements a distributed hash table that satisfies the ipfs routing interface.
dht/pb
Package dht_pb is a generated protocol buffer package.
Package dht_pb is a generated protocol buffer package.
kbucket
package kbucket implements a kademlia 'k-bucket' routing table.
package kbucket implements a kademlia 'k-bucket' routing table.
mock
Package mock provides a virtual routing server.
Package mock provides a virtual routing server.
test
sharness/lib
package randomdep is here to introduce a dependency in random for godep to function properly.
package randomdep is here to introduce a dependency in random for godep to function properly.
dependencies Module
testplans
bitswap Module
thirdparty
dir
loggables
Package loggables includes a bunch of translator functions for commonplace/stdlib objects.
Package loggables includes a bunch of translator functions for commonplace/stdlib objects.
notifier
Package notifier provides a simple notification dispatcher meant to be embedded in larger structres who wish to allow clients to sign up for event notifications.
Package notifier provides a simple notification dispatcher meant to be embedded in larger structres who wish to allow clients to sign up for event notifications.
pollEndpoint
pollEndpoint is a helper utility that waits for a http endpoint to be reachable and return with http.StatusOK
pollEndpoint is a helper utility that waits for a http endpoint to be reachable and return with http.StatusOK
pq
tar
testutil/ci
Package ci implements some helper functions to use during tests.
Package ci implements some helper functions to use during tests.
testutil/ci/travis
Package travis implements some helper functions to use during tests.
Package travis implements some helper functions to use during tests.
Package format implements a data format for files in the ipfs filesystem It is not the only format in ipfs, but it is the one that the filesystem assumes
Package format implements a data format for files in the ipfs filesystem It is not the only format in ipfs, but it is the one that the filesystem assumes
io
package unixfs/io implements convenience objects for working with the ipfs unixfs data format.
package unixfs/io implements convenience objects for working with the ipfs unixfs data format.
mod
pb
Package unixfs_pb is a generated protocol buffer package.
Package unixfs_pb is a generated protocol buffer package.

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