From 1537b95d352df1b6e3085f842c66b2c51cb7a0ec Mon Sep 17 00:00:00 2001
From: Travis Ralston <travpc@gmail.com>
Date: Wed, 4 Mar 2020 00:36:27 -0700
Subject: [PATCH] Put IPFS stuff behind a proxy class/implementation

Includes early implementation of an embedded node, but not enabled because it breaks the whole compile chain.
---
 api/unstable/ipfs_download.go    |  31 ++-----
 cmd/media_repo/main.go           |   4 +
 cmd/media_repo/reloads.go        |  16 ++++
 common/config/conf_min_shared.go |   1 +
 common/config/models_domain.go   |   1 +
 common/config/watch.go           |   6 ++
 common/globals/reload.go         |   1 +
 config.sample.yaml               |  10 +-
 docs/config.md                   |   1 +
 go.mod                           |   7 +-
 go.sum                           | 152 +++++++++++++++++++++++++++++++
 ipfs_proxy/api.go                |  60 ++++++++++++
 ipfs_proxy/iface.go              |  11 +++
 ipfs_proxy/ipfs_embedded/impl.go | 149 ++++++++++++++++++++++++++++++
 ipfs_proxy/ipfs_local/impl.go    |  47 ++++++++++
 ipfs_proxy/ipfs_models/object.go |  12 +++
 16 files changed, 481 insertions(+), 28 deletions(-)
 create mode 100644 ipfs_proxy/api.go
 create mode 100644 ipfs_proxy/iface.go
 create mode 100644 ipfs_proxy/ipfs_embedded/impl.go
 create mode 100644 ipfs_proxy/ipfs_local/impl.go
 create mode 100644 ipfs_proxy/ipfs_models/object.go

diff --git a/api/unstable/ipfs_download.go b/api/unstable/ipfs_download.go
index 5d6a1ecf..5c33122d 100644
--- a/api/unstable/ipfs_download.go
+++ b/api/unstable/ipfs_download.go
@@ -1,18 +1,14 @@
 package unstable
 
 import (
-	"bytes"
 	"net/http"
 
 	"github.com/gorilla/mux"
-	"github.com/ipfs/go-cid"
-	"github.com/ipfs/go-ipfs-http-client"
-	"github.com/ipfs/interface-go-ipfs-core/path"
 	"github.com/sirupsen/logrus"
 	"github.com/turt2live/matrix-media-repo/api"
 	"github.com/turt2live/matrix-media-repo/api/r0"
 	"github.com/turt2live/matrix-media-repo/common/rcontext"
-	"github.com/turt2live/matrix-media-repo/util"
+	"github.com/turt2live/matrix-media-repo/ipfs_proxy"
 )
 
 func IPFSDownload(r *http.Request, rctx rcontext.RequestContext, user api.UserInfo) interface{} {
@@ -26,29 +22,16 @@ func IPFSDownload(r *http.Request, rctx rcontext.RequestContext, user api.UserIn
 		"server":        server,
 	})
 
-	ipfs, err := httpapi.NewLocalApi()
+	obj, err := ipfs_proxy.GetObject(ipfsContentId, rctx)
 	if err != nil {
 		rctx.Log.Error(err)
-		return api.InternalServerError("Unexpected error connecting to IPFS")
-	}
-
-	ipfsCid, err := cid.Decode(ipfsContentId)
-	if err != nil {
-		rctx.Log.Error(err)
-		return api.InternalServerError("Unexpected error decoding content ID")
-	}
-
-	ipfsPath := path.IpfsPath(ipfsCid)
-	node, err := ipfs.ResolveNode(rctx.Context, ipfsPath)
-	if err != nil {
-		rctx.Log.Error(err)
-		return api.InternalServerError("Unexpected error resolving object from IPFS")
+		return api.InternalServerError("unexpected error")
 	}
 
 	return &r0.DownloadMediaResponse{
-		ContentType: "application/octet-stream",
-		Filename:    "ipfs.dat", // TODO: Figure out how to get a name out of this
-		SizeBytes:   int64(len(node.RawData())),
-		Data:        util.BufferToStream(bytes.NewBuffer(node.RawData())), // stream to avoid log spam
+		ContentType: obj.ContentType,
+		Filename:    obj.FileName,
+		SizeBytes:   obj.SizeBytes,
+		Data:        obj.Data,
 	}
 }
diff --git a/cmd/media_repo/main.go b/cmd/media_repo/main.go
index 3419a384..ece24a60 100644
--- a/cmd/media_repo/main.go
+++ b/cmd/media_repo/main.go
@@ -13,6 +13,7 @@ import (
 	"github.com/turt2live/matrix-media-repo/common/runtime"
 	"github.com/turt2live/matrix-media-repo/common/version"
 	"github.com/turt2live/matrix-media-repo/internal_cache"
+	"github.com/turt2live/matrix-media-repo/ipfs_proxy"
 	"github.com/turt2live/matrix-media-repo/metrics"
 	"github.com/turt2live/matrix-media-repo/tasks"
 )
@@ -60,6 +61,9 @@ func main() {
 	defer watcher.Close()
 	setupReloads()
 
+	logrus.Info("Starting IPFS (if enabled)...")
+	ipfs_proxy.Reload()
+
 	logrus.Info("Starting media repository...")
 	metrics.Init()
 	web := webserver.Init()
diff --git a/cmd/media_repo/reloads.go b/cmd/media_repo/reloads.go
index 7879faa6..34113685 100644
--- a/cmd/media_repo/reloads.go
+++ b/cmd/media_repo/reloads.go
@@ -4,6 +4,7 @@ import (
 	"github.com/turt2live/matrix-media-repo/api/webserver"
 	"github.com/turt2live/matrix-media-repo/common/globals"
 	"github.com/turt2live/matrix-media-repo/common/runtime"
+	"github.com/turt2live/matrix-media-repo/ipfs_proxy"
 	"github.com/turt2live/matrix-media-repo/metrics"
 	"github.com/turt2live/matrix-media-repo/storage"
 	"github.com/turt2live/matrix-media-repo/tasks"
@@ -15,6 +16,7 @@ func setupReloads() {
 	reloadDatabaseOnChan(globals.DatabaseReloadChan)
 	reloadDatastoresOnChan(globals.DatastoresReloadChan)
 	reloadRecurringTasksOnChan(globals.RecurringTasksReloadChan)
+	reloadIpfsOnChan(globals.IPFSReloadChan)
 }
 
 func stopReloads() {
@@ -24,6 +26,7 @@ func stopReloads() {
 	globals.DatabaseReloadChan <- false
 	globals.DatastoresReloadChan <- false
 	globals.RecurringTasksReloadChan <- false
+	globals.IPFSReloadChan <- false
 }
 
 func reloadWebOnChan(reloadChan chan bool) {
@@ -93,3 +96,16 @@ func reloadRecurringTasksOnChan(reloadChan chan bool) {
 		}
 	}()
 }
+
+func reloadIpfsOnChan(reloadChan chan bool) {
+	go func() {
+		for {
+			shouldReload := <-reloadChan
+			if shouldReload {
+				ipfs_proxy.Reload()
+			} else {
+				ipfs_proxy.Stop()
+			}
+		}
+	}()
+}
diff --git a/common/config/conf_min_shared.go b/common/config/conf_min_shared.go
index f0c66a2f..57df4fe4 100644
--- a/common/config/conf_min_shared.go
+++ b/common/config/conf_min_shared.go
@@ -52,6 +52,7 @@ func NewDefaultMinimumRepoConfig() MinimumRepoConfig {
 			},
 			IPFS: IPFSConfig{
 				Enabled: false,
+				Daemon:  true,
 			},
 		},
 	}
diff --git a/common/config/models_domain.go b/common/config/models_domain.go
index 796b94b4..512031d2 100644
--- a/common/config/models_domain.go
+++ b/common/config/models_domain.go
@@ -92,4 +92,5 @@ type MSC2448Config struct {
 
 type IPFSConfig struct {
 	Enabled bool `yaml:"enabled"`
+	Daemon  bool `yaml:"daemon"`
 }
diff --git a/common/config/watch.go b/common/config/watch.go
index 6fe3460a..e6675e21 100644
--- a/common/config/watch.go
+++ b/common/config/watch.go
@@ -87,6 +87,12 @@ func onFileChanged() {
 		logrus.Warn("Log configuration changed - restart the media repo to apply changes")
 	}
 
+	ipfsDaemonChange := configNew.Features.IPFS.Daemon != configNow.Features.IPFS.Daemon
+	if ipfsDaemonChange {
+		logrus.Warn("IPFS Daemon options changed - reloading")
+		globals.IPFSReloadChan <- true
+	}
+
 	// Always update the datastores
 	logrus.Warn("Updating datastores to ensure accuracy")
 	globals.DatastoresReloadChan <- true
diff --git a/common/globals/reload.go b/common/globals/reload.go
index 6b680dbb..e93c311e 100644
--- a/common/globals/reload.go
+++ b/common/globals/reload.go
@@ -5,3 +5,4 @@ var MetricsReloadChan = make(chan bool)
 var DatabaseReloadChan = make(chan bool)
 var DatastoresReloadChan = make(chan bool)
 var RecurringTasksReloadChan = make(chan bool)
+var IPFSReloadChan = make(chan bool)
diff --git a/config.sample.yaml b/config.sample.yaml
index 4163993d..f3f237d9 100644
--- a/config.sample.yaml
+++ b/config.sample.yaml
@@ -430,9 +430,13 @@ featureSupport:
     punch: 1
 
   # IPFS Support
-  # This is currently beta and might not work at all. It also assumes you have a local IPFS
-  # agent running so it can access the HTTP API. In future these options might be moved and
-  # more configurable.
+  # This is currently beta and might not work at all.
   IPFS:
     # Whether or not IPFS support is enabled for use in the media repo.
     enabled: false
+
+    # Enable this to spawn an ephemeral IPFS node (one that gets destroyed when the
+    # process exits) to use instead of a localhost HTTP agent. If this is disabled,
+    # the media repo will assume you have an HTTP IPFS agent running and accessible.
+    # Defaults to using a daemon.
+    daemon: true
\ No newline at end of file
diff --git a/docs/config.md b/docs/config.md
index 0e98b63d..797c1574 100644
--- a/docs/config.md
+++ b/docs/config.md
@@ -54,6 +54,7 @@ Any options from the main config can then be overridden per-domain with the exce
 * `downloads.expireAfterDays` - because remote media downloads are not for any particular domain.
 * `thumbnails.expireAfterDays` - because thumbnails aren't associated with any particular domain.
 * `urlPreviews.expireAfterDays` - because previews aren't associated with any particular domain.
+* `featureSupport.IPFS.daemon` - because spawning multiple daemons doesn't make sense.
 
 To override a value, simply provide it in any valid per-domain config:
 
diff --git a/go.mod b/go.mod
index 1d47fce7..36941fa1 100644
--- a/go.mod
+++ b/go.mod
@@ -26,7 +26,9 @@ require (
 	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0
 	github.com/gorilla/mux v1.7.4
 	github.com/h2non/filetype v1.0.12
-	github.com/ipfs/go-cid v0.0.3
+	github.com/ipfs/go-cid v0.0.4
+	github.com/ipfs/go-ipfs v0.4.23
+	github.com/ipfs/go-ipfs-config v0.0.11
 	github.com/ipfs/go-ipfs-http-client v0.0.5
 	github.com/ipfs/interface-go-ipfs-core v0.2.6
 	github.com/jehiah/go-strftime v0.0.0-20171201141054-1d33003b3869 // indirect
@@ -35,8 +37,11 @@ require (
 	github.com/lestrrat/go-file-rotatelogs v0.0.0-20180223000712-d3151e2a480f
 	github.com/lestrrat/go-strftime v0.0.0-20180220042222-ba3bf9c1d042 // indirect
 	github.com/lib/pq v1.3.0
+	github.com/libp2p/go-libp2p-core v0.2.3
+	github.com/libp2p/go-libp2p-peerstore v0.1.3
 	github.com/mattn/go-sqlite3 v2.0.3+incompatible // indirect
 	github.com/minio/minio-go v6.0.14+incompatible
+	github.com/multiformats/go-multiaddr v0.1.1
 	github.com/olebedev/emitter v0.0.0-20190110104742-e8d1457e6aee
 	github.com/patrickmn/go-cache v2.1.0+incompatible
 	github.com/peterbourgon/g2s v0.0.0-20170223122336-d4e7ad98afea // indirect
diff --git a/go.sum b/go.sum
index d0544a55..725c8a17 100644
--- a/go.sum
+++ b/go.sum
@@ -1,15 +1,20 @@
+bazil.org/fuse v0.0.0-20180421153158-65cc252bf669/go.mod h1:Xbm+BRKSBEpa4q4hTSxohYNQpsxXPbPry4JJWOB3LB8=
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 github.com/AndreasBriese/bbloom v0.0.0-20180913140656-343706a395b7/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
 github.com/AndreasBriese/bbloom v0.0.0-20190306092124-e2d15f34fcf9/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
+github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96 h1:cTp8I5+VIoKjsnZuH8vjyaysT/ses3EvZeaV/1UkF2M=
+github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/DavidHuie/gomigrate v0.0.0-20190826182718-4adc4b3de142 h1:pfeJevnIXt4KJShhkTp8uRU0evDkRaFkAdmaNmzHMIQ=
 github.com/DavidHuie/gomigrate v0.0.0-20190826182718-4adc4b3de142/go.mod h1:F3GZLX+VN44AjFiyKD8++nq8sVE0Sw3bOhhQ3mUffnM=
 github.com/Jeffail/tunny v0.0.0-20190930221602-f13eb662a36a h1:sk14oPN106XTe3WzOIaVGq+cFh1sh4z++2pAg2j4XCo=
 github.com/Jeffail/tunny v0.0.0-20190930221602-f13eb662a36a/go.mod h1:BX3q3G70XX0UmIkDWfDHoDRquDS1xFJA5VTbMf+14wM=
 github.com/Kubuxu/go-os-helper v0.0.1/go.mod h1:N8B+I7vPCT80IcP58r50u4+gEEcsZETFUpAzWW2ep1Y=
+github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/PuerkitoBio/goquery v1.5.1 h1:PSPBGne8NIUWw+/7vFBV+kG2J/5MOjbzc7154OaKCSE=
 github.com/PuerkitoBio/goquery v1.5.1/go.mod h1:GsLWisAFVj4WgDibEWF4pvYnkVQBpKBKeU+7zCJoLcc=
 github.com/Stebalien/go-bitfield v0.0.0-20180330043415-076a62f9ce6e/go.mod h1:3oM7gXIttpYDAJXpVNnSCiUMYBLIZ6cb1t+Ip982MRo=
+github.com/Stebalien/go-bitfield v0.0.1 h1:X3kbSSPUaJK60wV2hjOPZwmpljr6VGCqdq4cBLhbQBo=
 github.com/Stebalien/go-bitfield v0.0.1/go.mod h1:GNjFpasyUVkHMsfEOk8EFLJ9syQ6SI+XWrX9Wf2XH0s=
 github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
 github.com/ajstarks/svgo v0.0.0-20200204031535-0cbcf57ea1d8 h1:LMjxfr9tcHP10YI+i4+cjHWSjPeUAUy5+sqw5FhFzwE=
@@ -29,7 +34,11 @@ github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/bep/debounce v1.2.0 h1:wXds8Kq8qRfwAOpAxHrJDbCXgC5aHSzgQb/0gKsHQqo=
 github.com/bep/debounce v1.2.0/go.mod h1:H8yggRPQKLUhUoqrJC1bO2xNya7vanpDl7xR3ISbCJ0=
+github.com/blang/semver v3.5.1+incompatible/go.mod h1:kRBLl5iJ+tD4TcOOxsy/0fnwebNt5EWlYSAyrTnjyyk=
+github.com/bren2010/proquint v0.0.0-20160323162903-38337c27106d h1:QgeLLoPD3kRVmeu/1al9iIpIANMi9O1zXFm8BnYGCJg=
+github.com/bren2010/proquint v0.0.0-20160323162903-38337c27106d/go.mod h1:Jbj8eKecMNwf0KFI75skSUZqMB4UCRcndUScVBTWyUI=
 github.com/btcsuite/btcd v0.0.0-20190213025234-306aecffea32/go.mod h1:DrZx5ec/dmnfpw9KyYoQyYo7d0KEvTkk/5M/vbZjAr8=
+github.com/btcsuite/btcd v0.0.0-20190427004231-96897255fd17/go.mod h1:3J08xEfcugPacsc34/LKRU2yO7YmuT8yt28J8k2+rrI=
 github.com/btcsuite/btcd v0.0.0-20190523000118-16327141da8c/go.mod h1:3J08xEfcugPacsc34/LKRU2yO7YmuT8yt28J8k2+rrI=
 github.com/btcsuite/btcd v0.0.0-20190605094302-a0d1e3e36d50/go.mod h1:3J08xEfcugPacsc34/LKRU2yO7YmuT8yt28J8k2+rrI=
 github.com/btcsuite/btcd v0.0.0-20190824003749-130ea5bddde3 h1:A/EVblehb75cUgXA5njHPn0kLAsykn6mJGz7rnmW5W0=
@@ -46,8 +55,13 @@ github.com/buckket/go-blurhash v1.0.3 h1:zCSPYlKYWxF+3I/JJT2GrF4ut6wRaifz89JdsdZ
 github.com/buckket/go-blurhash v1.0.3/go.mod h1:BUt9nlD6V+23blJqm6Vn/423xpTnP1OLA9yv+y4l44U=
 github.com/cenk/backoff v2.2.1+incompatible h1:djdFT7f4gF2ttuzRKPbMOWgZajgesItGLwG5FTQKmmE=
 github.com/cenk/backoff v2.2.1+incompatible/go.mod h1:7FtoeaSnHoZnmZzz47cM35Y9nSW7tNyaidugnHTaFDE=
+github.com/cenkalti/backoff v2.1.1+incompatible h1:tKJnvO2kl0zmb/jA5UKAt4VoEVw1qxKWjE/Bpp46npY=
+github.com/cenkalti/backoff v2.1.1+incompatible/go.mod h1:90ReRw6GdpyfrHakVjL/QHaoyV4aDUVVkXQJJJ3NXXM=
+github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
+github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/cheekybits/genny v1.0.0 h1:uGGa4nei+j20rOSeDeP5Of12XVm7TGUd4dJA9RDitfE=
 github.com/cheekybits/genny v1.0.0/go.mod h1:+tQajlRqAUrPI7DOSpB0XAqZYtQakVtB7wXkRAgjxjQ=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
@@ -65,10 +79,15 @@ github.com/davecgh/go-spew v0.0.0-20171005155431-ecdeabc65495/go.mod h1:J7Y8YcW2
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davidlazar/go-crypto v0.0.0-20170701192655-dcfb0a7ac018 h1:6xT9KW8zLC5IlbaIF5Q7JNieBoACT7iW0YTxQHR0in0=
+github.com/davidlazar/go-crypto v0.0.0-20170701192655-dcfb0a7ac018/go.mod h1:rQYf4tfk5sSwFsnDg3qYaBxSjsD9S8+59vW0dKUgme4=
 github.com/dgraph-io/badger v1.5.5-0.20190226225317-8115aed38f8f/go.mod h1:VZxzAIRPHRVNRKRo6AXrX9BJegn6il06VMTZVJYCIjQ=
+github.com/dgraph-io/badger v1.6.0-rc1 h1:JphPpoBZJ3WHha133BGYlQqltSGIhV+VsEID0++nN9A=
 github.com/dgraph-io/badger v1.6.0-rc1/go.mod h1:zwt7syl517jmP8s94KqSxTlM6IMsdhYy6psNgSztDR4=
 github.com/dgryski/go-farm v0.0.0-20190104051053-3adb47b1fb0f/go.mod h1:SqUrOPUnsFjfmXRMNPybcSiG0BgUW2AuFH8PAnS2iTw=
+github.com/dgryski/go-farm v0.0.0-20190423205320-6a90982ecee2 h1:tdlZCpZ/P9DhczCTSixgIKmwPv6+wP5DGjqLYw5SUiA=
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+github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
 github.com/didip/tollbooth v4.0.2+incompatible h1:fVSa33JzSz0hoh2NxpwZtksAzAgd7zjmGO20HCZtF4M=
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@@ -79,12 +98,14 @@ github.com/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4
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@@ -117,6 +138,7 @@ github.com/golang/protobuf v1.3.0/go.mod h1:Qd/q+1AKNOZr9uGQzbzCmRO6sUih6GTPZv6a
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@@ -141,7 +163,9 @@ github.com/gxed/hashland/murmur3 v0.0.1/go.mod h1:KjXop02n4/ckmZSnY2+HKcLud/tcmv
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@@ -150,6 +174,8 @@ github.com/hashicorp/golang-lru v0.5.3/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uG
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@@ -157,7 +183,11 @@ github.com/huin/goutil v0.0.0-20170803182201-1ca381bf3150/go.mod h1:PpLOETDnJ0o3
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@@ -173,23 +203,43 @@ github.com/ipfs/go-cid v0.0.1/go.mod h1:GHWU/WuQdMPmIosc4Yn1bcCT7dSeX4lBafM7iqUP
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@@ -223,6 +273,10 @@ github.com/ipfs/go-ipld-cbor v0.0.2/go.mod h1:wTBtrQZA3SoFKMVkp6cn6HMRteIB1VsmHA
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@@ -259,6 +321,10 @@ github.com/jackpal/go-nat-pmp v1.0.1/go.mod h1:QPH045xvCAeXUZOxsnwmrtiCoxIr9eob+
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@@ -306,6 +372,7 @@ github.com/libp2p/go-addr-util v0.0.1/go.mod h1:4ac6O7n9rIAKB1dnd+s8IbbMXkt+oBpz
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@@ -316,17 +383,23 @@ github.com/libp2p/go-eventbus v0.1.0 h1:mlawomSAjjkk97QnYiEmHsLu7E136+2oCWSHRUvM
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@@ -339,6 +412,8 @@ github.com/libp2p/go-libp2p-circuit v0.1.0/go.mod h1:Ahq4cY3V9VJcHcn1SBXjr78AbFk
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@@ -351,6 +426,7 @@ github.com/libp2p/go-libp2p-core v0.2.3 h1:zXikZ5pLfebtTMeIYfcwVQ2Pae77O0FIwDquw
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@@ -358,16 +434,24 @@ github.com/libp2p/go-libp2p-discovery v0.0.5/go.mod h1:YtF20GUxjgoKZ4zmXj8j3Nb2T
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@@ -377,28 +461,43 @@ github.com/libp2p/go-libp2p-nat v0.0.2/go.mod h1:QrjXQSD5Dj4IJOdEcjHRkWTSomyxRo6
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@@ -406,6 +505,7 @@ github.com/libp2p/go-libp2p-secio v0.2.0 h1:ywzZBsWEEz2KNTn5RtzauEDq5RFEefPsttXY
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@@ -416,6 +516,8 @@ github.com/libp2p/go-libp2p-testing v0.0.3/go.mod h1:gvchhf3FQOtBdr+eFUABet5a4MB
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@@ -452,6 +554,7 @@ github.com/libp2p/go-reuseport-transport v0.0.1/go.mod h1:YkbSDrvjUVDL6b8XqriyA2
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@@ -465,6 +568,7 @@ github.com/libp2p/go-testutil v0.0.1/go.mod h1:iAcJc/DKJQanJ5ws2V+u5ywdL2n12X1Wb
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@@ -472,9 +576,12 @@ github.com/libp2p/go-yamux v1.2.1/go.mod h1:FGTiPvoV/3DVdgWpX+tM0OW3tsM+W5bSE3gZ
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@@ -484,12 +591,14 @@ github.com/mattn/go-isatty v0.0.4/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNx
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@@ -533,16 +642,21 @@ github.com/multiformats/go-multiaddr-net v0.1.0 h1:ZepO8Ezwovd+7b5XPPDhQhayk1yt0
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@@ -570,6 +684,8 @@ github.com/polydawn/refmt v0.0.0-20190221155625-df39d6c2d992/go.mod h1:uIp+gprXx
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@@ -578,15 +694,22 @@ github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:
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@@ -631,6 +754,7 @@ github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXf
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 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
+github.com/syndtr/goleveldb v1.0.0 h1:fBdIW9lB4Iz0n9khmH8w27SJ3QEJ7+IgjPEwGSZiFdE=
 github.com/syndtr/goleveldb v1.0.0/go.mod h1:ZVVdQEZoIme9iO1Ch2Jdy24qqXrMMOU6lpPAyBWyWuQ=
 github.com/tebeka/strftime v0.1.3 h1:5HQXOqWKYRFfNyBMNVc9z5+QzuBtIXy03psIhtdJYto=
 github.com/tebeka/strftime v0.1.3/go.mod h1:7wJm3dZlpr4l/oVK0t1HYIc4rMzQ2XJlOMIUJUJH6XQ=
@@ -640,10 +764,14 @@ github.com/urfave/cli v1.20.0/go.mod h1:70zkFmudgCuE/ngEzBv17Jvp/497gISqfk5gWijb
 github.com/warpfork/go-wish v0.0.0-20180510122957-5ad1f5abf436/go.mod h1:x6AKhvSSexNrVSrViXSHUEbICjmGXhtgABaHIySUSGw=
 github.com/warpfork/go-wish v0.0.0-20190328234359-8b3e70f8e830 h1:8kxMKmKzXXL4Ru1nyhvdms/JjWt+3YLpvRb/bAjO/y0=
 github.com/warpfork/go-wish v0.0.0-20190328234359-8b3e70f8e830/go.mod h1:x6AKhvSSexNrVSrViXSHUEbICjmGXhtgABaHIySUSGw=
+github.com/whyrusleeping/base32 v0.0.0-20170828182744-c30ac30633cc h1:BCPnHtcboadS0DvysUuJXZ4lWVv5Bh5i7+tbIyi+ck4=
 github.com/whyrusleeping/base32 v0.0.0-20170828182744-c30ac30633cc/go.mod h1:r45hJU7yEoA81k6MWNhpMj/kms0n14dkzkxYHoB96UM=
+github.com/whyrusleeping/cbor v0.0.0-20171005072247-63513f603b11 h1:5HZfQkwe0mIfyDmc1Em5GqlNRzcdtlv4HTNmdpt7XH0=
+github.com/whyrusleeping/cbor v0.0.0-20171005072247-63513f603b11/go.mod h1:Wlo/SzPmxVp6vXpGt/zaXhHH0fn4IxgqZc82aKg6bpQ=
 github.com/whyrusleeping/chunker v0.0.0-20181014151217-fe64bd25879f h1:jQa4QT2UP9WYv2nzyawpKMOCl+Z/jW7djv2/J50lj9E=
 github.com/whyrusleeping/chunker v0.0.0-20181014151217-fe64bd25879f/go.mod h1:p9UJB6dDgdPgMJZs7UjUOdulKyRr9fqkS+6JKAInPy8=
 github.com/whyrusleeping/go-ctrlnet v0.0.0-20180313164037-f564fbbdaa95/go.mod h1:SJqKCCPXRfBFCwXjfNT/skfsceF7+MBFLI2OrvuRA7g=
+github.com/whyrusleeping/go-keyspace v0.0.0-20160322163242-5b898ac5add1 h1:EKhdznlJHPMoKr0XTrX+IlJs1LH3lyx2nfr1dOlZ79k=
 github.com/whyrusleeping/go-keyspace v0.0.0-20160322163242-5b898ac5add1/go.mod h1:8UvriyWtv5Q5EOgjHaSseUEdkQfvwFv1I/In/O2M9gc=
 github.com/whyrusleeping/go-logging v0.0.0-20170515211332-0457bb6b88fc h1:9lDbC6Rz4bwmou+oE6Dt4Cb2BGMur5eR/GYptkKUVHo=
 github.com/whyrusleeping/go-logging v0.0.0-20170515211332-0457bb6b88fc/go.mod h1:bopw91TMyo8J3tvftk8xmU2kPmlrt4nScJQZU2hE5EM=
@@ -653,12 +781,16 @@ github.com/whyrusleeping/go-smux-multiplex v3.0.16+incompatible/go.mod h1:34LEDb
 github.com/whyrusleeping/go-smux-multistream v2.0.2+incompatible/go.mod h1:dRWHHvc4HDQSHh9gbKEBbUZ+f2Q8iZTPG3UOGYODxSQ=
 github.com/whyrusleeping/go-smux-yamux v2.0.8+incompatible/go.mod h1:6qHUzBXUbB9MXmw3AUdB52L8sEb/hScCqOdW2kj/wuI=
 github.com/whyrusleeping/go-smux-yamux v2.0.9+incompatible/go.mod h1:6qHUzBXUbB9MXmw3AUdB52L8sEb/hScCqOdW2kj/wuI=
+github.com/whyrusleeping/go-sysinfo v0.0.0-20190219211824-4a357d4b90b1/go.mod h1:tKH72zYNt/exx6/5IQO6L9LoQ0rEjd5SbbWaDTs9Zso=
 github.com/whyrusleeping/mafmt v1.2.8 h1:TCghSl5kkwEE0j+sU/gudyhVMRlpBin8fMBBHg59EbA=
 github.com/whyrusleeping/mafmt v1.2.8/go.mod h1:faQJFPbLSxzD9xpA02ttW/tS9vZykNvXwGvqIpk20FA=
 github.com/whyrusleeping/mdns v0.0.0-20180901202407-ef14215e6b30/go.mod h1:j4l84WPFclQPj320J9gp0XwNKBb3U0zt5CBqjPp22G4=
+github.com/whyrusleeping/mdns v0.0.0-20190826153040-b9b60ed33aa9 h1:Y1/FEOpaCpD21WxrmfeIYCFPuVPRCY2XZTWzTNHGw30=
 github.com/whyrusleeping/mdns v0.0.0-20190826153040-b9b60ed33aa9/go.mod h1:j4l84WPFclQPj320J9gp0XwNKBb3U0zt5CBqjPp22G4=
 github.com/whyrusleeping/multiaddr-filter v0.0.0-20160516205228-e903e4adabd7 h1:E9S12nwJwEOXe2d6gT6qxdvqMnNq+VnSsKPgm2ZZNds=
 github.com/whyrusleeping/multiaddr-filter v0.0.0-20160516205228-e903e4adabd7/go.mod h1:X2c0RVCI1eSUFI8eLcY3c0423ykwiUdxLJtkDvruhjI=
+github.com/whyrusleeping/tar-utils v0.0.0-20180509141711-8c6c8ba81d5c/go.mod h1:xxcJeBb7SIUl/Wzkz1eVKJE/CB34YNrqX2TQI6jY9zs=
+github.com/whyrusleeping/timecache v0.0.0-20160911033111-cfcb2f1abfee h1:lYbXeSvJi5zk5GLKVuid9TVjS9a0OmLIDKTfoZBL6Ow=
 github.com/whyrusleeping/timecache v0.0.0-20160911033111-cfcb2f1abfee/go.mod h1:m2aV4LZI4Aez7dP5PMyVKEHhUyEJ/RjmPEDOpDvudHg=
 github.com/whyrusleeping/yamux v1.1.5/go.mod h1:E8LnQQ8HKx5KD29HZFUwM1PxCOdPRzGwur1mcYhXcD8=
 github.com/x-cray/logrus-prefixed-formatter v0.5.2/go.mod h1:2duySbKsL6M18s5GU7VPsoEPHyzalCE06qoARUCeBBE=
@@ -666,6 +798,18 @@ github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
 go.opencensus.io v0.22.1 h1:8dP3SGL7MPB94crU3bEPplMPe83FI4EouesJUeFHv50=
 go.opencensus.io v0.22.1/go.mod h1:Ap50jQcDJrx6rB6VgeeFPtuPIf3wMRvRfrfYDO6+BmA=
+go.uber.org/atomic v1.4.0 h1:cxzIVoETapQEqDhQu3QfnvXAV4AlzcvUCxkVUFw3+EU=
+go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
+go.uber.org/dig v1.7.0 h1:E5/L92iQTNJTjfgJF2KgU+/JpMaiuvK2DHLBj0+kSZk=
+go.uber.org/dig v1.7.0/go.mod h1:z+dSd2TP9Usi48jL8M3v63iSBVkiwtVyMKxMZYYauPg=
+go.uber.org/fx v1.9.0 h1:7OAz8ucp35AU8eydejpYG7QrbE8rLKzGhHbZlJi5LYY=
+go.uber.org/fx v1.9.0/go.mod h1:mFdUyAUuJ3w4jAckiKSKbldsxy1ojpAMJ+dVZg5Y0Aw=
+go.uber.org/goleak v0.10.0/go.mod h1:VCZuO8V8mFPlL0F5J5GK1rtHV3DrFcQ1R8ryq7FK0aI=
+go.uber.org/multierr v1.1.0 h1:HoEmRHQPVSqub6w2z2d2EOVs2fjyFRGyofhKuyDq0QI=
+go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
+go4.org v0.0.0-20190218023631-ce4c26f7be8e/go.mod h1:MkTOUMDaeVYJUOUsaDXIhWPZYa1yOyC1qaOBpL57BhE=
+go4.org v0.0.0-20190313082347-94abd6928b1d h1:JkRdGP3zvTtTbabWSAC6n67ka30y7gOzWAah4XYJSfw=
+go4.org v0.0.0-20190313082347-94abd6928b1d/go.mod h1:MkTOUMDaeVYJUOUsaDXIhWPZYa1yOyC1qaOBpL57BhE=
 golang.org/x/crypto v0.0.0-20170930174604-9419663f5a44/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
@@ -681,6 +825,7 @@ golang.org/x/crypto v0.0.0-20190611184440-5c40567a22f8/go.mod h1:yigFU9vqHzYiE8U
 golang.org/x/crypto v0.0.0-20190618222545-ea8f1a30c443/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190923035154-9ee001bba392 h1:ACG4HJsFiNMf47Y4PeRoebLNy/2lXT9EtprMuTFWt1M=
 golang.org/x/crypto v0.0.0-20190923035154-9ee001bba392/go.mod h1:/lpIB1dKB+9EgE3H3cr1v9wB50oz8l4C4h62xy7jSTY=
+golang.org/x/crypto v0.0.0-20200115085410-6d4e4cb37c7d/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200302210943-78000ba7a073 h1:xMPOj6Pz6UipU1wXLkrtqpHbR0AVFnyPEQq/wRWz9lM=
 golang.org/x/crypto v0.0.0-20200302210943-78000ba7a073/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
@@ -697,10 +842,12 @@ golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73r
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20181011144130-49bb7cea24b1/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20181201002055-351d144fa1fc/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190227160552-c95aed5357e7/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190522135303-fa69b94a3b58/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
 golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
 golang.org/x/net v0.0.0-20190611141213-3f473d35a33a/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
@@ -712,10 +859,12 @@ golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20181107165924-66b7b1311ac8/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -726,6 +875,7 @@ golang.org/x/sys v0.0.0-20190302025703-b6889370fb10/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190522044717-8097e1b27ff5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190524122548-abf6ff778158/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190524152521-dbbf3f1254d4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190610200419-93c9922d18ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -748,6 +898,7 @@ golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGm
 golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -764,6 +915,7 @@ gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/cheggaaa/pb.v1 v1.0.28/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qStrOgw=
 gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/ini.v1 v1.52.0 h1:j+Lt/M1oPPejkniCg1TkWE2J3Eh1oZTsHSXzMTzUXn4=
diff --git a/ipfs_proxy/api.go b/ipfs_proxy/api.go
new file mode 100644
index 00000000..2de78acc
--- /dev/null
+++ b/ipfs_proxy/api.go
@@ -0,0 +1,60 @@
+package ipfs_proxy
+
+import (
+	"github.com/sirupsen/logrus"
+	"github.com/turt2live/matrix-media-repo/common/config"
+	"github.com/turt2live/matrix-media-repo/common/rcontext"
+	"github.com/turt2live/matrix-media-repo/ipfs_proxy/ipfs_local"
+	"github.com/turt2live/matrix-media-repo/ipfs_proxy/ipfs_models"
+)
+
+var implementation IPFSImplementation
+
+func Reload() {
+	if implementation != nil {
+		implementation.Stop()
+	}
+	implementation = nil
+
+	if !config.Get().Features.IPFS.Enabled {
+		return
+	}
+
+	if config.Get().Features.IPFS.Daemon {
+		logrus.Info("Starting up local IPFS daemon...")
+		// TODO: Make this work. It currently causes build errors.
+		//impl, err := ipfs_embedded.NewEmbeddedIPFSNode()
+		//if err != nil {
+		//	panic(err)
+		//}
+		//implementation = impl
+	} else {
+		logrus.Info("Using localhost IPFS HTTP agent...")
+		impl, err := ipfs_local.NewLocalIPFSImplementation()
+		if err != nil {
+			panic(err)
+		}
+		implementation = impl
+	}
+}
+
+func Stop() {
+	if implementation != nil {
+		implementation.Stop()
+	}
+	implementation = nil
+}
+
+func getImpl() IPFSImplementation {
+	if implementation == nil {
+		Reload()
+	}
+	if implementation == nil {
+		panic("missing ipfs implementation object")
+	}
+	return implementation
+}
+
+func GetObject(contentId string, ctx rcontext.RequestContext) (*ipfs_models.IPFSObject, error) {
+	return getImpl().GetObject(contentId, ctx)
+}
diff --git a/ipfs_proxy/iface.go b/ipfs_proxy/iface.go
new file mode 100644
index 00000000..6fa26de4
--- /dev/null
+++ b/ipfs_proxy/iface.go
@@ -0,0 +1,11 @@
+package ipfs_proxy
+
+import (
+	"github.com/turt2live/matrix-media-repo/common/rcontext"
+	"github.com/turt2live/matrix-media-repo/ipfs_proxy/ipfs_models"
+)
+
+type IPFSImplementation interface {
+	GetObject(contentId string, ctx rcontext.RequestContext) (*ipfs_models.IPFSObject, error)
+	Stop()
+}
diff --git a/ipfs_proxy/ipfs_embedded/impl.go b/ipfs_proxy/ipfs_embedded/impl.go
new file mode 100644
index 00000000..7110253c
--- /dev/null
+++ b/ipfs_proxy/ipfs_embedded/impl.go
@@ -0,0 +1,149 @@
+package ipfs_embedded
+
+import (
+	"bytes"
+	"context"
+	"io/ioutil"
+	"sync"
+
+	"github.com/ipfs/go-cid"
+	ipfsConfig "github.com/ipfs/go-ipfs-config"
+	"github.com/ipfs/go-ipfs/core"
+	"github.com/ipfs/go-ipfs/core/coreapi"
+	"github.com/ipfs/go-ipfs/core/node/libp2p"
+	"github.com/ipfs/go-ipfs/repo/fsrepo"
+	icore "github.com/ipfs/interface-go-ipfs-core"
+	icorepath "github.com/ipfs/interface-go-ipfs-core/path"
+	"github.com/libp2p/go-libp2p-core/peer"
+	peerstore "github.com/libp2p/go-libp2p-peerstore"
+	"github.com/multiformats/go-multiaddr"
+	"github.com/sirupsen/logrus"
+	"github.com/turt2live/matrix-media-repo/common/rcontext"
+	"github.com/turt2live/matrix-media-repo/ipfs_proxy/ipfs_models"
+	"github.com/turt2live/matrix-media-repo/util"
+)
+
+type IPFSEmbedded struct {
+	api  icore.CoreAPI
+	node *core.IpfsNode
+}
+
+func NewEmbeddedIPFSNode() (IPFSEmbedded, error) {
+	// Startup routine modified from:
+	// https://github.com/ipfs/go-ipfs/blob/083ef47ce84a5bd9a93f0ce0afaf668881dc1f35/docs/examples/go-ipfs-as-a-library/main.go
+
+	blank := IPFSEmbedded{}
+
+	// Create the repo (in ephemeral space)
+	repoPath, err := ioutil.TempDir("", "ipfs-shell")
+	if err != nil {
+		return blank, err
+	}
+
+	cfg, err := ipfsConfig.Init(ioutil.Discard, 2048)
+	if err != nil {
+		return blank, err
+	}
+
+	err = fsrepo.Init(repoPath, cfg)
+	if err != nil {
+		return blank, err
+	}
+
+	repo, err := fsrepo.Open(repoPath)
+	if err != nil {
+		return blank, err
+	}
+
+	// Create the node from the repo
+	nodeOptions := &core.BuildCfg{
+		Online:  true,
+		Routing: libp2p.DHTOption,
+		Repo:    repo,
+	}
+
+	node, err := core.NewNode(context.Background(), nodeOptions)
+	if err != nil {
+		return blank, err
+	}
+
+	api, err := coreapi.NewCoreAPI(node)
+	if err != nil {
+		return blank, err
+	}
+
+	// Connect to peers so we can actually get started
+	bootstrapNodes := []string{
+		// IPFS Bootstrapper nodes.
+		"/dnsaddr/bootstrap.libp2p.io/p2p/QmNnooDu7bfjPFoTZYxMNLWUQJyrVwtbZg5gBMjTezGAJN",
+		"/dnsaddr/bootstrap.libp2p.io/p2p/QmQCU2EcMqAqQPR2i9bChDtGNJchTbq5TbXJJ16u19uLTa",
+		"/dnsaddr/bootstrap.libp2p.io/p2p/QmbLHAnMoJPWSCR5Zhtx6BHJX9KiKNN6tpvbUcqanj75Nb",
+		"/dnsaddr/bootstrap.libp2p.io/p2p/QmcZf59bWwK5XFi76CZX8cbJ4BhTzzA3gU1ZjYZcYW3dwt",
+
+		// IPFS Cluster Pinning nodes
+		"/ip4/138.201.67.219/tcp/4001/p2p/QmUd6zHcbkbcs7SMxwLs48qZVX3vpcM8errYS7xEczwRMA",
+		"/ip4/138.201.67.220/tcp/4001/p2p/QmNSYxZAiJHeLdkBg38roksAR9So7Y5eojks1yjEcUtZ7i",
+		"/ip4/138.201.68.74/tcp/4001/p2p/QmdnXwLrC8p1ueiq2Qya8joNvk3TVVDAut7PrikmZwubtR",
+		"/ip4/94.130.135.167/tcp/4001/p2p/QmUEMvxS2e7iDrereVYc5SWPauXPyNwxcy9BXZrC1QTcHE",
+	}
+	var wg sync.WaitGroup
+	peerInfos := make(map[peer.ID]*peerstore.PeerInfo, len(bootstrapNodes))
+	for _, addrStr := range bootstrapNodes {
+		addr, err := multiaddr.NewMultiaddr(addrStr)
+		if err != nil {
+			return blank, err
+		}
+
+		pii, err := peerstore.InfoFromP2pAddr(addr)
+		if err != nil {
+			return blank, err
+		}
+
+		pi, ok := peerInfos[pii.ID]
+		if !ok {
+			pi = &peerstore.PeerInfo{ID: pii.ID}
+			peerInfos[pi.ID] = pi
+		}
+		pi.Addrs = append(pi.Addrs, pii.Addrs...)
+	}
+	wg.Add(len(peerInfos))
+	for _, peerInfo := range peerInfos {
+		go func(peerInfo *peerstore.PeerInfo) {
+			defer wg.Done()
+			err := api.Swarm().Connect(context.Background(), *peerInfo)
+			if err != nil {
+				logrus.Error(err)
+			}
+		}(peerInfo)
+	}
+	wg.Wait()
+
+	return IPFSEmbedded{
+		api:  api,
+		node: node,
+	}, nil
+}
+
+func (i IPFSEmbedded) GetObject(contentId string, ctx rcontext.RequestContext) (*ipfs_models.IPFSObject, error) {
+	ipfsCid, err := cid.Decode(contentId)
+	if err != nil {
+		return nil, err
+	}
+
+	ipfsPath := icorepath.IpfsPath(ipfsCid)
+	node, err := i.api.ResolveNode(ctx.Context, ipfsPath)
+	if err != nil {
+		return nil, err
+	}
+
+	return &ipfs_models.IPFSObject{
+		ContentType: "application/octet-stream", // TODO: Actually fetch
+		FileName:    "ipfs.dat",                 // TODO: Actually fetch
+		SizeBytes:   int64(len(node.RawData())),
+		Data:        util.BufferToStream(bytes.NewBuffer(node.RawData())), // stream to avoid log spam
+	}, nil
+}
+
+func (i IPFSEmbedded) Stop() {
+	i.node.Close()
+}
diff --git a/ipfs_proxy/ipfs_local/impl.go b/ipfs_proxy/ipfs_local/impl.go
new file mode 100644
index 00000000..f37cb699
--- /dev/null
+++ b/ipfs_proxy/ipfs_local/impl.go
@@ -0,0 +1,47 @@
+package ipfs_local
+
+import (
+	"bytes"
+
+	"github.com/ipfs/go-cid"
+	httpapi "github.com/ipfs/go-ipfs-http-client"
+	"github.com/ipfs/interface-go-ipfs-core/path"
+	"github.com/turt2live/matrix-media-repo/common/rcontext"
+	"github.com/turt2live/matrix-media-repo/ipfs_proxy/ipfs_models"
+	"github.com/turt2live/matrix-media-repo/util"
+)
+
+type IPFSLocal struct {
+	client *httpapi.HttpApi
+}
+
+func NewLocalIPFSImplementation() (IPFSLocal, error) {
+	client, err := httpapi.NewLocalApi()
+	return IPFSLocal{
+		client: client,
+	}, err
+}
+
+func (i IPFSLocal) GetObject(contentId string, ctx rcontext.RequestContext) (*ipfs_models.IPFSObject, error) {
+	ipfsCid, err := cid.Decode(contentId)
+	if err != nil {
+		return nil, err
+	}
+
+	ipfsPath := path.IpfsPath(ipfsCid)
+	node, err := i.client.ResolveNode(ctx.Context, ipfsPath)
+	if err != nil {
+		return nil, err
+	}
+
+	return &ipfs_models.IPFSObject{
+		ContentType: "application/octet-stream", // TODO: Actually fetch
+		FileName:    "ipfs.dat",                 // TODO: Actually fetch
+		SizeBytes:   int64(len(node.RawData())),
+		Data:        util.BufferToStream(bytes.NewBuffer(node.RawData())), // stream to avoid log spam
+	}, nil
+}
+
+func (i IPFSLocal) Stop() {
+	// Nothing to do
+}
diff --git a/ipfs_proxy/ipfs_models/object.go b/ipfs_proxy/ipfs_models/object.go
new file mode 100644
index 00000000..cf79a801
--- /dev/null
+++ b/ipfs_proxy/ipfs_models/object.go
@@ -0,0 +1,12 @@
+package ipfs_models
+
+import (
+	"io"
+)
+
+type IPFSObject struct {
+	ContentType string
+	FileName    string
+	SizeBytes   int64
+	Data        io.ReadCloser
+}
-- 
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