config: update for new gateway options

License: MIT
Signed-off-by: Steven Allen <steven@stebalien.com>

core/corehttp/gateway_handler.go

@@ -34,34 +34,6 @@ const (
 	ipnsPathPrefix = "/ipns/"
 )
 
-type GatewaySpec struct {
-	// PathPrefixes list the set of path prefixes that should be handled by
-	// the gateway logic.
-	PathPrefixes []string
-
-	// UseSubdomains indicates whether or not this gateway uses subdomains
-	// for IPFS resources instead of paths. That is: http://CID.ipfs.GATEWAY/...
-	//
-	// If this flag is set, any /ipns/$id and/or /ipfs/$id paths in PathPrefixes
-	// will be permanently redirected to http://$id.[ipns|ipfs].$gateway/.
-	//
-	// We do not support using both paths and subdomains for a single domain
-	// for security reasons.
-	UseSubdomains bool
-}
-
-var DefaultGatewaySpec = GatewaySpec{
-	PathPrefixes:  []string{ipfsPathPrefix, ipnsPathPrefix, "/api/"},
-	UseSubdomains: false,
-}
-
-// TODO(steb): Configurable
-var KnownGateways = map[string]GatewaySpec{
-	"ipfs.io":         DefaultGatewaySpec,
-	"gateway.ipfs.io": DefaultGatewaySpec,
-	"localhost:8080":  DefaultGatewaySpec,
-}
-
 // gatewayHandler is a HTTP handler that serves IPFS objects (accessible by default at /ipfs/<path>)
 // (it serves requests like GET /ipfs/QmVRzPKPzNtSrEzBFm2UZfxmPAgnaLke4DMcerbsGGSaFe/link)
 type gatewayHandler struct {

core/corehttp/hostname.go

@@ -10,14 +10,51 @@ import (
 	core "github.com/ipfs/go-ipfs/core"
 	namesys "github.com/ipfs/go-ipfs/namesys"
 
+	config "github.com/ipfs/go-ipfs-config"
 	nsopts "github.com/ipfs/interface-go-ipfs-core/options/namesys"
 	isd "github.com/jbenet/go-is-domain"
 )
 
+var defaultGatewaySpec = config.GatewaySpec{
+	PathPrefixes:  []string{ipfsPathPrefix, ipnsPathPrefix, "/api/"},
+	UseSubdomains: false,
+}
+
+var defaultKnownGateways = map[string]config.GatewaySpec{
+	"ipfs.io":         defaultGatewaySpec,
+	"gateway.ipfs.io": defaultGatewaySpec,
+	"dweb.link": config.GatewaySpec{
+		PathPrefixes:  []string{ipfsPathPrefix, ipnsPathPrefix},
+		UseSubdomains: true,
+	},
+}
+
 // HostnameOption rewrites an incoming request based on the Host header.
 func HostnameOption() ServeOption {
 	return func(n *core.IpfsNode, _ net.Listener, mux *http.ServeMux) (*http.ServeMux, error) {
 		childMux := http.NewServeMux()
+
+		cfg, err := n.Repo.Config()
+		if err != nil {
+			return nil, err
+		}
+		knownGateways := make(
+			map[string]config.GatewaySpec,
+			len(defaultKnownGateways)+len(cfg.Gateway.PublicGateways),
+		)
+		for host, gw := range defaultKnownGateways {
+			knownGateways[host] = gw
+		}
+		for host, gw := range cfg.Gateway.PublicGateways {
+			if gw == nil {
+				// Allows the user to remove gateways but _also_
+				// allows us to continuously update the list.
+				delete(knownGateways, host)
+			} else {
+				knownGateways[host] = *gw
+			}
+		}
+
 		mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
 			ctx, cancel := context.WithCancel(n.Context())
 			defer cancel()
@@ -38,7 +75,7 @@ func HostnameOption() ServeOption {
 			// would "just work". Should we try this?
 
 			// Is this one of our "known gateways"?
-			if gw, ok := KnownGateways[r.Host]; ok {
+			if gw, ok := knownGateways[r.Host]; ok {
 				// This is a known gateway but we're not using
 				// the subdomain feature.
 
@@ -63,7 +100,7 @@ func HostnameOption() ServeOption {
 				// Looks like we're using subdomains.
 
 				// Again, is this a known gateway that supports subdomains?
-				if gw, ok := KnownGateways[host]; ok && gw.UseSubdomains {
+				if gw, ok := knownGateways[host]; ok && gw.UseSubdomains {
 
 					// Yes, serve the request (and rewrite the path to not use subdomains).
 					r.URL.Path = pathPrefix + r.URL.Path

go.mod

@@ -33,7 +33,7 @@ require (
 	github.com/ipfs/go-ipfs-chunker v0.0.1
 	github.com/ipfs/go-ipfs-cmdkit v0.0.1
 	github.com/ipfs/go-ipfs-cmds v0.0.4
-	github.com/ipfs/go-ipfs-config v0.0.1
+	github.com/ipfs/go-ipfs-config v0.0.2-0.20190315044135-de0accf5476b
 	github.com/ipfs/go-ipfs-ds-help v0.0.1
 	github.com/ipfs/go-ipfs-exchange-interface v0.0.1
 	github.com/ipfs/go-ipfs-exchange-offline v0.0.1

go.sum

@@ -35,7 +35,6 @@ github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3Ee
 github.com/cskr/pubsub v1.0.2 h1:vlOzMhl6PFn60gRlTQQsIfVwaPB/B/8MziK8FhEPt/0=
 github.com/cskr/pubsub v1.0.2/go.mod h1:/8MzYXk/NJAz782G8RPkFzXTZVu63VotefPnR9TIRis=
 github.com/davecgh/go-spew v0.0.0-20171005155431-ecdeabc65495/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 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=
@@ -83,7 +82,6 @@ github.com/gxed/hashland/keccakpg v0.0.1 h1:wrk3uMNaMxbXiHibbPO4S0ymqJMm41WiudyF
 github.com/gxed/hashland/keccakpg v0.0.1/go.mod h1:kRzw3HkwxFU1mpmPP8v1WyQzwdGfmKFJ6tItnhQ67kU=
 github.com/gxed/hashland/murmur3 v0.0.1 h1:SheiaIt0sda5K+8FLz952/1iWS9zrnKsEJaOJu4ZbSc=
 github.com/gxed/hashland/murmur3 v0.0.1/go.mod h1:KjXop02n4/ckmZSnY2+HKcLud/tcmvhST0bie/0lS48=
-github.com/gxed/pubsub v0.0.0-20180201040156-26ebdf44f824 h1:TF4mX7zXpeyz/xintezebSa7ZDxAGBnqDwcoobvaz2o=
 github.com/gxed/pubsub v0.0.0-20180201040156-26ebdf44f824/go.mod h1:OiEWyHgK+CWrmOlVquHaIK1vhpUJydC9m0Je6mhaiNE=
 github.com/hashicorp/errwrap v1.0.0 h1:hLrqtEDnRye3+sgx6z4qVLNuviH3MR5aQ0ykNJa/UYA=
 github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
@@ -104,14 +102,12 @@ github.com/ipfs/bbloom v0.0.1 h1:s7KkiBPfxCeDVo47KySjK0ACPc5GJRUxFpdyWEuDjhw=
 github.com/ipfs/bbloom v0.0.1/go.mod h1:oqo8CVWsJFMOZqTglBG4wydCE4IQA/G2/SEofB0rjUI=
 github.com/ipfs/dir-index-html v1.0.3 h1:cKdOjJBKJgewgcv97zOlqsNOle52N91d3nAkbQadnuY=
 github.com/ipfs/dir-index-html v1.0.3/go.mod h1:TG9zbaH/+4MnkGel0xF4SLNhk+YZvBNo6jjBkO/LaWc=
-github.com/ipfs/go-bitswap v0.0.1 h1:Xx1ma7TWy9ISOx5zFq5YVQyrTHzUP4GkRPMsZokHxAg=
 github.com/ipfs/go-bitswap v0.0.1/go.mod h1:z+tP3h+HTJ810n1R5yMy2ccKFffJ2F6Vqm/5Bf7vs2c=
 github.com/ipfs/go-bitswap v0.0.3 h1:uFcSI9dkjUn67S7IM60vr2wA27aAvn8o9xYjaQCug3o=
 github.com/ipfs/go-bitswap v0.0.3/go.mod h1:jadAZYsP/tcRMl47ZhFxhaNuDQoXawT8iHMg+iFoQbg=
 github.com/ipfs/go-block-format v0.0.1/go.mod h1:DK/YYcsSUIVAFNwo/KZCdIIbpN0ROH/baNLgayt4pFc=
 github.com/ipfs/go-block-format v0.0.2 h1:qPDvcP19izTjU8rgo6p7gTXZlkMkF5bz5G3fqIsSCPE=
 github.com/ipfs/go-block-format v0.0.2/go.mod h1:AWR46JfpcObNfg3ok2JHDUfdiHRgWhJgCQF+KIgOPJY=
-github.com/ipfs/go-blockservice v0.0.1 h1:l6g1hwYDV6vb4bAvTqia6Cvo+zLMOPKel/n0zUX48bc=
 github.com/ipfs/go-blockservice v0.0.1/go.mod h1:2Ao89U7jV1KIqqNk5EdhSTBG/Pgc1vMFr0bhkx376j4=
 github.com/ipfs/go-blockservice v0.0.3 h1:40OvwrxeudTAlUGUAKNYnNPcwQeLtXedjzTWecnUinQ=
 github.com/ipfs/go-blockservice v0.0.3/go.mod h1:/NNihwTi6V2Yr6g8wBI+BSwPuURpBRMtYNGrlxZ8KuI=
@@ -145,8 +141,9 @@ github.com/ipfs/go-ipfs-cmdkit v0.0.1 h1:X6YXEAjUljTzevE6DPUKXSqcgf+4FXzcn5B957F
 github.com/ipfs/go-ipfs-cmdkit v0.0.1/go.mod h1:9FtbMdUabcSqv/G4/8WCxSLxkZxn/aZEFrxxqnVcRbg=
 github.com/ipfs/go-ipfs-cmds v0.0.4 h1:Iq4I8irWw5TmHe/4pjSyYJLbYkkdMOgHVe8ofJmPa4k=
 github.com/ipfs/go-ipfs-cmds v0.0.4/go.mod h1:1QVgxSgenZvOMGVC/XUTC7tJxRBGPLxYvpgPpCi3DUk=
-github.com/ipfs/go-ipfs-config v0.0.1 h1:6ED08emzI1imdsAjixFi2pEyZxTVD5ECKtCOxLBx+Uc=
 github.com/ipfs/go-ipfs-config v0.0.1/go.mod h1:KDbHjNyg4e6LLQSQpkgQMBz6Jf4LXiWAcmnkcwmH0DU=
+github.com/ipfs/go-ipfs-config v0.0.2-0.20190315044135-de0accf5476b h1:hKpyLzPAA1BZ/fi4ImGr7Q+fnufIILmnMvBGDHQD2Ls=
+github.com/ipfs/go-ipfs-config v0.0.2-0.20190315044135-de0accf5476b/go.mod h1:KDbHjNyg4e6LLQSQpkgQMBz6Jf4LXiWAcmnkcwmH0DU=
 github.com/ipfs/go-ipfs-delay v0.0.0-20181109222059-70721b86a9a8/go.mod h1:8SP1YXK1M1kXuc4KJZINY3TQQ03J2rwBG9QfXmbRPrw=
 github.com/ipfs/go-ipfs-delay v0.0.1 h1:r/UXYyRcddO6thwOnhiznIAiSvxMECGgtv35Xs1IeRQ=
 github.com/ipfs/go-ipfs-delay v0.0.1/go.mod h1:8SP1YXK1M1kXuc4KJZINY3TQQ03J2rwBG9QfXmbRPrw=
@@ -156,7 +153,6 @@ github.com/ipfs/go-ipfs-exchange-interface v0.0.1 h1:LJXIo9W7CAmugqI+uofioIpRb6r
 github.com/ipfs/go-ipfs-exchange-interface v0.0.1/go.mod h1:c8MwfHjtQjPoDyiy9cFquVtVHkO9b9Ob3FG91qJnWCM=
 github.com/ipfs/go-ipfs-exchange-offline v0.0.1 h1:P56jYKZF7lDDOLx5SotVh5KFxoY6C81I1NSHW1FxGew=
 github.com/ipfs/go-ipfs-exchange-offline v0.0.1/go.mod h1:WhHSFCVYX36H/anEKQboAzpUws3x7UeEGkzQc3iNkM0=
-github.com/ipfs/go-ipfs-files v0.0.1 h1:OroTsI58plHGX70HPLKy6LQhPR3HZJ5ip61fYlo6POM=
 github.com/ipfs/go-ipfs-files v0.0.1/go.mod h1:INEFm0LL2LWXBhNJ2PMIIb2w45hpXgPjNoE7yA8Y1d4=
 github.com/ipfs/go-ipfs-files v0.0.2 h1:fEEjF4H+1t8SFOHqUGp0KqcwgIRlbD2bu8CAS2sIggE=
 github.com/ipfs/go-ipfs-files v0.0.2/go.mod h1:INEFm0LL2LWXBhNJ2PMIIb2w45hpXgPjNoE7yA8Y1d4=
@@ -180,7 +176,6 @@ github.com/ipfs/go-ipns v0.0.1 h1:5vX0+ehF55YWxE8Pmf4eB8szcP+fh24AXnvCkOmSLCc=
 github.com/ipfs/go-ipns v0.0.1/go.mod h1:HOiAXgGiH0wCSwsFM1IKdOy6YGT4iZafcsUKni703/g=
 github.com/ipfs/go-log v0.0.1 h1:9XTUN/rW64BCG1YhPK9Hoy3q8nr4gOmHHBpgFdfw6Lc=
 github.com/ipfs/go-log v0.0.1/go.mod h1:kL1d2/hzSpI0thNYjiKfjanbVNU+IIGA/WnNESY9leM=
-github.com/ipfs/go-merkledag v0.0.1 h1:HqvQsqqLvNOgItOy80Sd4T4rHvq6cXtAtrbEoWAON+I=
 github.com/ipfs/go-merkledag v0.0.1/go.mod h1:CRdtHMROECqaehAGeJ0Wd9TtlmWv/ta5cUnvbTnniEI=
 github.com/ipfs/go-merkledag v0.0.3 h1:A5DlOMzqTRDVmdgkf3dzCKCFmVWH4Zqwb0cbYXUs+Ro=
 github.com/ipfs/go-merkledag v0.0.3/go.mod h1:Oc5kIXLHokkE1hWGMBHw+oxehkAaTOqtEb7Zbh6BhLA=
@@ -190,13 +185,11 @@ github.com/ipfs/go-metrics-prometheus v0.0.2 h1:9i2iljLg12S78OhC6UAiXi176xvQGiZa
 github.com/ipfs/go-metrics-prometheus v0.0.2/go.mod h1:ELLU99AQQNi+zX6GCGm2lAgnzdSH3u5UVlCdqSXnEks=
 github.com/ipfs/go-mfs v0.0.4 h1:34qX5A7mQTYTkszSKIAFr+Y7BbvwVjHW9mzHDxSUqTo=
 github.com/ipfs/go-mfs v0.0.4/go.mod h1:rUT0dKNWkKa1T+MobpBL2zANn7p8Y6unXANC0PV2FLk=
-github.com/ipfs/go-path v0.0.1 h1:6UskTq8xYVs3zVnHjXDvoCqw22dKWK1BwD1cy1cuHyc=
 github.com/ipfs/go-path v0.0.1/go.mod h1:ztzG4iSBN2/CJa93rtHAv/I+mpK+BGALeUoJzhclhw0=
 github.com/ipfs/go-path v0.0.3 h1:G/VFcCMXtp36JUPPyytYQ1I3UsBUBf47M//uSdTLnFg=
 github.com/ipfs/go-path v0.0.3/go.mod h1:zIRQUez3LuQIU25zFjC2hpBTHimWx7VK5bjZgRLbbdo=
 github.com/ipfs/go-todocounter v0.0.1 h1:kITWA5ZcQZfrUnDNkRn04Xzh0YFaDFXsoO2A81Eb6Lw=
 github.com/ipfs/go-todocounter v0.0.1/go.mod h1:l5aErvQc8qKE2r7NDMjmq5UNAvuZy0rC8BHOplkWvZ4=
-github.com/ipfs/go-unixfs v0.0.1 h1:CTTGqLxU5+PRkkeA+w1peStqRWFD1Kya+yZgIT4Xy1w=
 github.com/ipfs/go-unixfs v0.0.1/go.mod h1:ZlB83nMtxNMx4DAAE5/GixeKN1qHC+xspBksI7Q5NeI=
 github.com/ipfs/go-unixfs v0.0.3 h1:09koecZaoJVoYy6Wkd/vo1lyQ4AdgAe83eJylQ7gAZw=
 github.com/ipfs/go-unixfs v0.0.3/go.mod h1:FX/6aS/Xg95JRc6UMyiMdZeNn+N5VkD8/yfLNwKW0Ks=
@@ -252,11 +245,9 @@ github.com/libp2p/go-conn-security-multistream v0.0.1 h1:XefjAQRHcnUaxKb26RGupTo
 github.com/libp2p/go-conn-security-multistream v0.0.1/go.mod h1:nc9vud7inQ+d6SO0I/6dSWrdMnHnzZNHeyUQqrAJulE=
 github.com/libp2p/go-flow-metrics v0.0.1 h1:0gxuFd2GuK7IIP5pKljLwps6TvcuYgvG7Atqi3INF5s=
 github.com/libp2p/go-flow-metrics v0.0.1/go.mod h1:Iv1GH0sG8DtYN3SVJ2eG221wMiNpZxBdp967ls1g+k8=
-github.com/libp2p/go-libp2p v0.0.1 h1:oEjzhRzymY7NILTMzOKNVOpNZGpcQHrHriWw91pbJNM=
 github.com/libp2p/go-libp2p v0.0.1/go.mod h1:bmRs8I0vwn6iRaVssZnJx/epY6WPSKiLoK1vyle4EX0=
 github.com/libp2p/go-libp2p v0.0.2 h1:+jvgi0Zy3y4TKXJKApchCk3pCBPZf1T54z3+vKie3gw=
 github.com/libp2p/go-libp2p v0.0.2/go.mod h1:Qu8bWqFXiocPloabFGUcVG4kk94fLvfC8mWTDdFC9wE=
-github.com/libp2p/go-libp2p-autonat v0.0.1 h1:d5eskFxeJ4ag1ekhMC3yLTK+z+6RTw9W1Yv8HQma75k=
 github.com/libp2p/go-libp2p-autonat v0.0.1/go.mod h1:fs71q5Xk+pdnKU014o2iq1RhMs9/PMaG5zXRFNnIIT4=
 github.com/libp2p/go-libp2p-autonat v0.0.2 h1:ilo9QPzNPf1hMkqaPG55yzvhILf5ZtijstJhcii+l3s=
 github.com/libp2p/go-libp2p-autonat v0.0.2/go.mod h1:fs71q5Xk+pdnKU014o2iq1RhMs9/PMaG5zXRFNnIIT4=
@@ -288,7 +279,6 @@ github.com/libp2p/go-libp2p-loggables v0.0.1 h1:HVww9oAnINIxbt69LJNkxD8lnbfgteXR
 github.com/libp2p/go-libp2p-loggables v0.0.1/go.mod h1:lDipDlBNYbpyqyPX/KcoO+eq0sJYEVR2JgOexcivchg=
 github.com/libp2p/go-libp2p-metrics v0.0.1 h1:yumdPC/P2VzINdmcKZd0pciSUCpou+s0lwYCjBbzQZU=
 github.com/libp2p/go-libp2p-metrics v0.0.1/go.mod h1:jQJ95SXXA/K1VZi13h52WZMa9ja78zjyy5rspMsC/08=
-github.com/libp2p/go-libp2p-nat v0.0.1 h1:on/zju7XE+JXc8gH+vTKmIh2UJFC1K8kGnJYluQrlz4=
 github.com/libp2p/go-libp2p-nat v0.0.1/go.mod h1:4L6ajyUIlJvx1Cbh5pc6Ma6vMDpKXf3GgLO5u7W0oQ4=
 github.com/libp2p/go-libp2p-nat v0.0.2 h1:sKI5hiCsGFhuEKdXMsF9mywQu2qhfoIGX6a+VG6zelE=
 github.com/libp2p/go-libp2p-nat v0.0.2/go.mod h1:QrjXQSD5Dj4IJOdEcjHRkWTSomyxRo6HnUkf/TfQpLQ=
@@ -456,7 +446,6 @@ github.com/whyrusleeping/go-smux-multiplex v3.0.16+incompatible h1:iqksILj8STw03
 github.com/whyrusleeping/go-smux-multiplex v3.0.16+incompatible/go.mod h1:34LEDbeKFZInPUrAG+bjuJmUXONGdEFW7XL0SpTY1y4=
 github.com/whyrusleeping/go-smux-multistream v2.0.2+incompatible h1:BdYHctE9HJZLquG9tpTdwWcbG4FaX6tVKPGjCGgiVxo=
 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 h1:IGm/UP/JpEFS6D787sZnZg7RA6fZIR9c/Ms9DeAVNuk=
 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 h1:nVkExQ7pYlN9e45LcqTCOiDD0904fjtm0flnHZGbXkw=
 github.com/whyrusleeping/go-smux-yamux v2.0.9+incompatible/go.mod h1:6qHUzBXUbB9MXmw3AUdB52L8sEb/hScCqOdW2kj/wuI=
@@ -501,7 +490,6 @@ golang.org/x/sys v0.0.0-20190302025703-b6889370fb10 h1:xQJI9OEiErEQ++DoXOHqEpzsG
 golang.org/x/sys v0.0.0-20190302025703-b6889370fb10/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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 golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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