swarm-js
Version:
Swarm tools for JavaScript.
654 lines (560 loc) • 59 kB
JavaScript
(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
// TODO: this is a temporary fix to hide those libraries from the browser. A
// slightly better long-term solution would be to split this file into two,
// separating the functions that are used on Node.js from the functions that
// are used only on the browser.
module.exports = function (_ref) {
var fs = _ref.fs,
files = _ref.files,
os = _ref.os,
path = _ref.path,
child_process = _ref.child_process,
mimetype = _ref.mimetype,
defaultArchives = _ref.defaultArchives,
request = _ref.request,
downloadUrl = _ref.downloadUrl,
bytes = _ref.bytes,
hash = _ref.hash,
pick = _ref.pick;
// ∀ a . String -> JSON -> Map String a -o Map String a
// Inserts a key/val pair in an object impurely.
var impureInsert = function impureInsert(key) {
return function (val) {
return function (map) {
return map[key] = val, map;
};
};
}; // String -> JSON -> Map String JSON
// Merges an array of keys and an array of vals into an object.
var toMap = function toMap(keys) {
return function (vals) {
var map = {};
for (var i = 0, l = keys.length; i < l; ++i) {
map[keys[i]] = vals[i];
}
return map;
};
}; // ∀ a . Map String a -> Map String a -> Map String a
// Merges two maps into one.
var merge = function merge(a) {
return function (b) {
var map = {};
for (var key in a) {
map[key] = a[key];
}
for (var _key in b) {
map[_key] = b[_key];
}
return map;
};
}; // ∀ a . [a] -> [a] -> Bool
var equals = function equals(a) {
return function (b) {
if (a.length !== b.length) {
return false;
} else {
for (var i = 0, l = a.length; i < a; ++i) {
if (a[i] !== b[i]) return false;
}
}
return true;
};
}; // String -> String -> String
var rawUrl = function rawUrl(swarmUrl) {
return function (hash) {
return "".concat(swarmUrl, "/bzzr:/").concat(hash);
};
}; // String -> String -> Promise Uint8Array
// Gets the raw contents of a Swarm hash address.
var downloadData = function downloadData(swarmUrl) {
return function (hash) {
return request(rawUrl(swarmUrl)(hash), {
responseType: "arraybuffer"
}).then(function (arrayBuffer) {
var uint8Array = new Uint8Array(arrayBuffer);
var error404 = [52, 48, 52, 32, 112, 97, 103, 101, 32, 110, 111, 116, 32, 102, 111, 117, 110, 100, 10];
if (equals(uint8Array)(error404)) throw "Error 404.";
return uint8Array;
});
};
}; // type Entry = {"type": String, "hash": String}
// type File = {"type": String, "data": Uint8Array}
// String -> String -> Promise (Map String Entry)
// Solves the manifest of a Swarm address recursively.
// Returns a map from full paths to entries.
var downloadEntries = function downloadEntries(swarmUrl) {
return function (hash) {
var search = function search(hash) {
return function (path) {
return function (routes) {
// Formats an entry to the Swarm.js type.
var format = function format(entry) {
return {
type: entry.contentType,
hash: entry.hash
};
}; // To download a single entry:
// if type is bzz-manifest, go deeper
// if not, add it to the routing table
var downloadEntry = function downloadEntry(entry) {
if (entry.path === undefined) {
return Promise.resolve();
} else {
return entry.contentType === "application/bzz-manifest+json" ? search(entry.hash)(path + entry.path)(routes) : Promise.resolve(impureInsert(path + entry.path)(format(entry))(routes));
}
}; // Downloads the initial manifest and then each entry.
return downloadData(swarmUrl)(hash).then(function (text) {
return JSON.parse(toString(text)).entries;
}).then(function (entries) {
return Promise.all(entries.map(downloadEntry));
}).then(function () {
return routes;
});
};
};
};
return search(hash)("")({});
};
}; // String -> String -> Promise (Map String String)
// Same as `downloadEntries`, but returns only hashes (no types).
var downloadRoutes = function downloadRoutes(swarmUrl) {
return function (hash) {
return downloadEntries(swarmUrl)(hash).then(function (entries) {
return toMap(Object.keys(entries))(Object.keys(entries).map(function (route) {
return entries[route].hash;
}));
});
};
}; // String -> String -> Promise (Map String File)
// Gets the entire directory tree in a Swarm address.
// Returns a promise mapping paths to file contents.
var downloadDirectory = function downloadDirectory(swarmUrl) {
return function (hash) {
return downloadEntries(swarmUrl)(hash).then(function (entries) {
var paths = Object.keys(entries);
var hashs = paths.map(function (path) {
return entries[path].hash;
});
var types = paths.map(function (path) {
return entries[path].type;
});
var datas = hashs.map(downloadData(swarmUrl));
var files = function files(datas) {
return datas.map(function (data, i) {
return {
type: types[i],
data: data
};
});
};
return Promise.all(datas).then(function (datas) {
return toMap(paths)(files(datas));
});
});
};
}; // String -> String -> String -> Promise String
// Gets the raw contents of a Swarm hash address.
// Returns a promise with the downloaded file path.
var downloadDataToDisk = function downloadDataToDisk(swarmUrl) {
return function (hash) {
return function (filePath) {
return files.download(rawUrl(swarmUrl)(hash))(filePath);
};
};
}; // String -> String -> String -> Promise (Map String String)
// Gets the entire directory tree in a Swarm address.
// Returns a promise mapping paths to file contents.
var downloadDirectoryToDisk = function downloadDirectoryToDisk(swarmUrl) {
return function (hash) {
return function (dirPath) {
return downloadRoutes(swarmUrl)(hash).then(function (routingTable) {
var downloads = [];
for (var route in routingTable) {
if (route.length > 0) {
var filePath = path.join(dirPath, route);
downloads.push(downloadDataToDisk(swarmUrl)(routingTable[route])(filePath));
}
;
}
;
return Promise.all(downloads).then(function () {
return dirPath;
});
});
};
};
}; // String -> Uint8Array -> Promise String
// Uploads raw data to Swarm.
// Returns a promise with the uploaded hash.
var uploadData = function uploadData(swarmUrl) {
return function (data) {
return request("".concat(swarmUrl, "/bzzr:/"), {
body: typeof data === "string" ? fromString(data) : data,
method: "POST"
});
};
}; // String -> String -> String -> File -> Promise String
// Uploads a file to the Swarm manifest at a given hash, under a specific
// route. Returns a promise containing the uploaded hash.
// FIXME: for some reasons Swarm-Gateways is sometimes returning
// error 404 (bad request), so we retry up to 3 times. Why?
var uploadToManifest = function uploadToManifest(swarmUrl) {
return function (hash) {
return function (route) {
return function (file) {
var attempt = function attempt(n) {
var slashRoute = route[0] === "/" ? route : "/" + route;
var url = "".concat(swarmUrl, "/bzz:/").concat(hash).concat(slashRoute);
var opt = {
method: "PUT",
headers: {
"Content-Type": file.type
},
body: file.data
};
return request(url, opt).then(function (response) {
if (response.indexOf("error") !== -1) {
throw response;
}
return response;
}).catch(function (e) {
return n > 0 && attempt(n - 1);
});
};
return attempt(3);
};
};
};
}; // String -> {type: String, data: Uint8Array} -> Promise String
var uploadFile = function uploadFile(swarmUrl) {
return function (file) {
return uploadDirectory(swarmUrl)({
"": file
});
};
}; // String -> String -> Promise String
var uploadFileFromDisk = function uploadFileFromDisk(swarmUrl) {
return function (filePath) {
return fs.readFile(filePath).then(function (data) {
return uploadFile(swarmUrl)({
type: mimetype.lookup(filePath),
data: data
});
});
};
}; // String -> Map String File -> Promise String
// Uploads a directory to Swarm. The directory is
// represented as a map of routes and files.
// A default path is encoded by having a "" route.
var uploadDirectory = function uploadDirectory(swarmUrl) {
return function (directory) {
return uploadData(swarmUrl)("{}").then(function (hash) {
var uploadRoute = function uploadRoute(route) {
return function (hash) {
return uploadToManifest(swarmUrl)(hash)(route)(directory[route]);
};
};
var uploadToHash = function uploadToHash(hash, route) {
return hash.then(uploadRoute(route));
};
return Object.keys(directory).reduce(uploadToHash, Promise.resolve(hash));
});
};
}; // String -> Promise String
var uploadDataFromDisk = function uploadDataFromDisk(swarmUrl) {
return function (filePath) {
return fs.readFile(filePath).then(uploadData(swarmUrl));
};
}; // String -> Nullable String -> String -> Promise String
var uploadDirectoryFromDisk = function uploadDirectoryFromDisk(swarmUrl) {
return function (defaultPath) {
return function (dirPath) {
return files.directoryTree(dirPath).then(function (fullPaths) {
return Promise.all(fullPaths.map(function (path) {
return fs.readFile(path);
})).then(function (datas) {
var paths = fullPaths.map(function (path) {
return path.slice(dirPath.length);
});
var types = fullPaths.map(function (path) {
return mimetype.lookup(path) || "text/plain";
});
return toMap(paths)(datas.map(function (data, i) {
return {
type: types[i],
data: data
};
}));
});
}).then(function (directory) {
return merge(defaultPath ? {
"": directory[defaultPath]
} : {})(directory);
}).then(uploadDirectory(swarmUrl));
};
};
}; // String -> UploadInfo -> Promise String
// Simplified multi-type upload which calls the correct
// one based on the type of the argument given.
var _upload = function upload(swarmUrl) {
return function (arg) {
// Upload raw data from browser
if (arg.pick === "data") {
return pick.data().then(uploadData(swarmUrl)); // Upload a file from browser
} else if (arg.pick === "file") {
return pick.file().then(uploadFile(swarmUrl)); // Upload a directory from browser
} else if (arg.pick === "directory") {
return pick.directory().then(uploadDirectory(swarmUrl)); // Upload directory/file from disk
} else if (arg.path) {
switch (arg.kind) {
case "data":
return uploadDataFromDisk(swarmUrl)(arg.path);
case "file":
return uploadFileFromDisk(swarmUrl)(arg.path);
case "directory":
return uploadDirectoryFromDisk(swarmUrl)(arg.defaultFile)(arg.path);
}
; // Upload UTF-8 string or raw data (buffer)
} else if (arg.length || typeof arg === "string") {
return uploadData(swarmUrl)(arg); // Upload directory with JSON
} else if (arg instanceof Object) {
return uploadDirectory(swarmUrl)(arg);
}
return Promise.reject(new Error("Bad arguments"));
};
}; // String -> String -> Nullable String -> Promise (String | Uint8Array | Map String Uint8Array)
// Simplified multi-type download which calls the correct function based on
// the type of the argument given, and on whether the Swwarm address has a
// directory or a file.
var _download = function download(swarmUrl) {
return function (hash) {
return function (path) {
return isDirectory(swarmUrl)(hash).then(function (isDir) {
if (isDir) {
return path ? downloadDirectoryToDisk(swarmUrl)(hash)(path) : downloadDirectory(swarmUrl)(hash);
} else {
return path ? downloadDataToDisk(swarmUrl)(hash)(path) : downloadData(swarmUrl)(hash);
}
});
};
};
}; // String -> Promise String
// Downloads the Swarm binaries into a path. Returns a promise that only
// resolves when the exact Swarm file is there, and verified to be correct.
// If it was already there to begin with, skips the download.
var downloadBinary = function downloadBinary(path, archives) {
var system = os.platform().replace("win32", "windows") + "-" + (os.arch() === "x64" ? "amd64" : "386");
var archive = (archives || defaultArchives)[system];
var archiveUrl = downloadUrl + archive.archive + ".tar.gz";
var archiveMD5 = archive.archiveMD5;
var binaryMD5 = archive.binaryMD5;
return files.safeDownloadArchived(archiveUrl)(archiveMD5)(binaryMD5)(path);
}; // type SwarmSetup = {
// account : String,
// password : String,
// dataDir : String,
// binPath : String,
// ensApi : String,
// onDownloadProgress : Number ~> (),
// archives : [{
// archive: String,
// binaryMD5: String,
// archiveMD5: String
// }]
// }
// SwarmSetup ~> Promise Process
// Starts the Swarm process.
var startProcess = function startProcess(swarmSetup) {
return new Promise(function (resolve, reject) {
var spawn = child_process.spawn;
var hasString = function hasString(str) {
return function (buffer) {
return ('' + buffer).indexOf(str) !== -1;
};
};
var account = swarmSetup.account,
password = swarmSetup.password,
dataDir = swarmSetup.dataDir,
ensApi = swarmSetup.ensApi,
privateKey = swarmSetup.privateKey;
var STARTUP_TIMEOUT_SECS = 3;
var WAITING_PASSWORD = 0;
var STARTING = 1;
var LISTENING = 2;
var PASSWORD_PROMPT_HOOK = "Passphrase";
var LISTENING_HOOK = "Swarm http proxy started";
var state = WAITING_PASSWORD;
var swarmProcess = spawn(swarmSetup.binPath, ['--bzzaccount', account || privateKey, '--datadir', dataDir, '--ens-api', ensApi]);
var handleProcessOutput = function handleProcessOutput(data) {
if (state === WAITING_PASSWORD && hasString(PASSWORD_PROMPT_HOOK)(data)) {
setTimeout(function () {
state = STARTING;
swarmProcess.stdin.write(password + '\n');
}, 500);
} else if (hasString(LISTENING_HOOK)(data)) {
state = LISTENING;
clearTimeout(timeout);
resolve(swarmProcess);
}
};
swarmProcess.stdout.on('data', handleProcessOutput);
swarmProcess.stderr.on('data', handleProcessOutput); //swarmProcess.on('close', () => setTimeout(restart, 2000));
var restart = function restart() {
return startProcess(swarmSetup).then(resolve).catch(reject);
};
var error = function error() {
return reject(new Error("Couldn't start swarm process."));
};
var timeout = setTimeout(error, 20000);
});
}; // Process ~> Promise ()
// Stops the Swarm process.
var stopProcess = function stopProcess(process) {
return new Promise(function (resolve, reject) {
process.stderr.removeAllListeners('data');
process.stdout.removeAllListeners('data');
process.stdin.removeAllListeners('error');
process.removeAllListeners('error');
process.removeAllListeners('exit');
process.kill('SIGINT');
var killTimeout = setTimeout(function () {
return process.kill('SIGKILL');
}, 8000);
process.once('close', function () {
clearTimeout(killTimeout);
resolve();
});
});
}; // SwarmSetup -> (SwarmAPI -> Promise ()) -> Promise ()
// Receives a Swarm configuration object and a callback function. It then
// checks if a local Swarm node is running. If no local Swarm is found, it
// downloads the Swarm binaries to the dataDir (if not there), checksums,
// starts the Swarm process and calls the callback function with an API
// object using the local node. That callback must return a promise which
// will resolve when it is done using the API, so that this function can
// close the Swarm process properly. Returns a promise that resolves when the
// user is done with the API and the Swarm process is closed.
// TODO: check if Swarm process is already running (improve `isAvailable`)
var local = function local(swarmSetup) {
return function (useAPI) {
return _isAvailable("http://localhost:8500").then(function (isAvailable) {
return isAvailable ? useAPI(at("http://localhost:8500")).then(function () {}) : downloadBinary(swarmSetup.binPath, swarmSetup.archives).onData(function (data) {
return (swarmSetup.onProgress || function () {})(data.length);
}).then(function () {
return startProcess(swarmSetup);
}).then(function (process) {
return useAPI(at("http://localhost:8500")).then(function () {
return process;
});
}).then(stopProcess);
});
};
}; // String ~> Promise Bool
// Returns true if Swarm is available on `url`.
// Perfoms a test upload to determine that.
// TODO: improve this?
var _isAvailable = function isAvailable(swarmUrl) {
var testFile = "test";
var testHash = "c9a99c7d326dcc6316f32fe2625b311f6dc49a175e6877681ded93137d3569e7";
return uploadData(swarmUrl)(testFile).then(function (hash) {
return hash === testHash;
}).catch(function () {
return false;
});
}; // String -> String ~> Promise Bool
// Returns a Promise which is true if that Swarm address is a directory.
// Determines that by checking that it (i) is a JSON, (ii) has a .entries.
// TODO: improve this?
var isDirectory = function isDirectory(swarmUrl) {
return function (hash) {
return downloadData(swarmUrl)(hash).then(function (data) {
try {
return !!JSON.parse(toString(data)).entries;
} catch (e) {
return false;
}
});
};
}; // Uncurries a function; used to allow the f(x,y,z) style on exports.
var uncurry = function uncurry(f) {
return function (a, b, c, d, e) {
var p; // Hardcoded because efficiency (`arguments` is very slow).
if (typeof a !== "undefined") p = f(a);
if (typeof b !== "undefined") p = f(b);
if (typeof c !== "undefined") p = f(c);
if (typeof d !== "undefined") p = f(d);
if (typeof e !== "undefined") p = f(e);
return p;
};
}; // () -> Promise Bool
// Not sure how to mock Swarm to test it properly. Ideas?
var test = function test() {
return Promise.resolve(true);
}; // Uint8Array -> String
var toString = function toString(uint8Array) {
return bytes.toString(bytes.fromUint8Array(uint8Array));
}; // String -> Uint8Array
var fromString = function fromString(string) {
return bytes.toUint8Array(bytes.fromString(string));
}; // String -> SwarmAPI
// Fixes the `swarmUrl`, returning an API where you don't have to pass it.
var at = function at(swarmUrl) {
return {
download: function download(hash, path) {
return _download(swarmUrl)(hash)(path);
},
downloadData: uncurry(downloadData(swarmUrl)),
downloadDataToDisk: uncurry(downloadDataToDisk(swarmUrl)),
downloadDirectory: uncurry(downloadDirectory(swarmUrl)),
downloadDirectoryToDisk: uncurry(downloadDirectoryToDisk(swarmUrl)),
downloadEntries: uncurry(downloadEntries(swarmUrl)),
downloadRoutes: uncurry(downloadRoutes(swarmUrl)),
isAvailable: function isAvailable() {
return _isAvailable(swarmUrl);
},
upload: function upload(arg) {
return _upload(swarmUrl)(arg);
},
uploadData: uncurry(uploadData(swarmUrl)),
uploadFile: uncurry(uploadFile(swarmUrl)),
uploadFileFromDisk: uncurry(uploadFile(swarmUrl)),
uploadDataFromDisk: uncurry(uploadDataFromDisk(swarmUrl)),
uploadDirectory: uncurry(uploadDirectory(swarmUrl)),
uploadDirectoryFromDisk: uncurry(uploadDirectoryFromDisk(swarmUrl)),
uploadToManifest: uncurry(uploadToManifest(swarmUrl)),
pick: pick,
hash: hash,
fromString: fromString,
toString: toString
};
};
return {
at: at,
local: local,
download: _download,
downloadBinary: downloadBinary,
downloadData: downloadData,
downloadDataToDisk: downloadDataToDisk,
downloadDirectory: downloadDirectory,
downloadDirectoryToDisk: downloadDirectoryToDisk,
downloadEntries: downloadEntries,
downloadRoutes: downloadRoutes,
isAvailable: _isAvailable,
startProcess: startProcess,
stopProcess: stopProcess,
upload: _upload,
uploadData: uploadData,
uploadDataFromDisk: uploadDataFromDisk,
uploadFile: uploadFile,
uploadFileFromDisk: uploadFileFromDisk,
uploadDirectory: uploadDirectory,
uploadDirectoryFromDisk: uploadDirectoryFromDisk,
uploadToManifest: uploadToManifest,
pick: pick,
hash: hash,
fromString: fromString,
toString: toString
};
};
},{}]},{},[1])
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A\n// slightly better long-term solution would be to split this file into two,\n// separating the functions that are used on Node.js from the functions that\n// are used only on the browser.\nmodule.exports = function (_ref) {\n  var fs = _ref.fs,\n      files = _ref.files,\n      os = _ref.os,\n      path = _ref.path,\n      child_process = _ref.child_process,\n      mimetype = _ref.mimetype,\n      defaultArchives = _ref.defaultArchives,\n      request = _ref.request,\n      downloadUrl = _ref.downloadUrl,\n      bytes = _ref.bytes,\n      hash = _ref.hash,\n      pick = _ref.pick;\n\n  // ∀ a . String -> JSON -> Map String a -o Map String a\n  //   Inserts a key/val pair in an object impurely.\n  var impureInsert = function impureInsert(key) {\n    return function (val) {\n      return function (map) {\n        return map[key] = val, map;\n      };\n    };\n  }; // String -> JSON -> Map String JSON\n  //   Merges an array of keys and an array of vals into an object.\n\n\n  var toMap = function toMap(keys) {\n    return function (vals) {\n      var map = {};\n\n      for (var i = 0, l = keys.length; i < l; ++i) {\n        map[keys[i]] = vals[i];\n      }\n\n      return map;\n    };\n  }; // ∀ a . Map String a -> Map String a -> Map String a\n  //   Merges two maps into one.\n\n\n  var merge = function merge(a) {\n    return function (b) {\n      var map = {};\n\n      for (var key in a) {\n        map[key] = a[key];\n      }\n\n      for (var _key in b) {\n        map[_key] = b[_key];\n      }\n\n      return map;\n    };\n  }; // ∀ a . [a] -> [a] -> Bool\n\n\n  var equals = function equals(a) {\n    return function (b) {\n      if (a.length !== b.length) {\n        return false;\n      } else {\n        for (var i = 0, l = a.length; i < a; ++i) {\n          if (a[i] !== b[i]) return false;\n        }\n      }\n\n      return true;\n    };\n  }; // String -> String -> String\n\n\n  var rawUrl = function rawUrl(swarmUrl) {\n    return function (hash) {\n      return \"\".concat(swarmUrl, \"/bzzr:/\").concat(hash);\n    };\n  }; // String -> String -> Promise Uint8Array\n  //   Gets the raw contents of a Swarm hash address.\n\n\n  var downloadData = function downloadData(swarmUrl) {\n    return function (hash) {\n      return request(rawUrl(swarmUrl)(hash), {\n        responseType: \"arraybuffer\"\n      }).then(function (arrayBuffer) {\n        var uint8Array = new Uint8Array(arrayBuffer);\n        var error404 = [52, 48, 52, 32, 112, 97, 103, 101, 32, 110, 111, 116, 32, 102, 111, 117, 110, 100, 10];\n        if (equals(uint8Array)(error404)) throw \"Error 404.\";\n        return uint8Array;\n      });\n    };\n  }; // type Entry = {\"type\": String, \"hash\": String}\n  // type File = {\"type\": String, \"data\": Uint8Array}\n  // String -> String -> Promise (Map String Entry)\n  //   Solves the manifest of a Swarm address recursively.\n  //   Returns a map from full paths to entries.\n\n\n  var downloadEntries = function downloadEntries(swarmUrl) {\n    return function (hash) {\n      var search = function search(hash) {\n        return function (path) {\n          return function (routes) {\n            // Formats an entry to the Swarm.js type.\n            var format = function format(entry) {\n              return {\n                type: entry.contentType,\n                hash: entry.hash\n              };\n            }; // To download a single entry:\n            //   if type is bzz-manifest, go deeper\n            //   if not, add it to the routing table\n\n\n            var downloadEntry = function downloadEntry(entry) {\n              if (entry.path === undefined) {\n                return Promise.resolve();\n              } else {\n                return entry.contentType === \"application/bzz-manifest+json\" ? search(entry.hash)(path + entry.path)(routes) : Promise.resolve(impureInsert(path + entry.path)(format(entry))(routes));\n              }\n            }; // Downloads the initial manifest and then each entry.\n\n\n            return downloadData(swarmUrl)(hash).then(function (text) {\n              return JSON.parse(toString(text)).entries;\n            }).then(function (entries) {\n              return Promise.all(entries.map(downloadEntry));\n            }).then(function () {\n              return routes;\n            });\n          };\n        };\n      };\n\n      return search(hash)(\"\")({});\n    };\n  }; // String -> String -> Promise (Map String String)\n  //   Same as `downloadEntries`, but returns only hashes (no types).\n\n\n  var downloadRoutes = function downloadRoutes(swarmUrl) {\n    return function (hash) {\n      return downloadEntries(swarmUrl)(hash).then(function (entries) {\n        return toMap(Object.keys(entries))(Object.keys(entries).map(function (route) {\n          return entries[route].hash;\n        }));\n      });\n    };\n  }; // String -> String -> Promise (Map String File)\n  //   Gets the entire directory tree in a Swarm address.\n  //   Returns a promise mapping paths to file contents.\n\n\n  var downloadDirectory = function downloadDirectory(swarmUrl) {\n    return function (hash) {\n      return downloadEntries(swarmUrl)(hash).then(function (entries) {\n        var paths = Object.keys(entries);\n        var hashs = paths.map(function (path) {\n          return entries[path].hash;\n        });\n        var types = paths.map(function (path) {\n          return entries[path].type;\n        });\n        var datas = hashs.map(downloadData(swarmUrl));\n\n        var files = function files(datas) {\n          return datas.map(function (data, i) {\n            return {\n              type: types[i],\n              data: data\n            };\n          });\n        };\n\n        return Promise.all(datas).then(function (datas) {\n          return toMap(paths)(files(datas));\n        });\n      });\n    };\n  }; // String -> String -> String -> Promise String\n  //   Gets the raw contents of a Swarm hash address.\n  //   Returns a promise with the downloaded file path.\n\n\n  var downloadDataToDisk = function downloadDataToDisk(swarmUrl) {\n    return function (hash) {\n      return function (filePath) {\n        return files.download(rawUrl(swarmUrl)(hash))(filePath);\n      };\n    };\n  }; // String -> String -> String -> Promise (Map String String)\n  //   Gets the entire directory tree in a Swarm address.\n  //   Returns a promise mapping paths to file contents.\n\n\n  var downloadDirectoryToDisk = function downloadDirectoryToDisk(swarmUrl) {\n    return function (hash) {\n      return function (dirPath) {\n        return downloadRoutes(swarmUrl)(hash).then(function (routingTable) {\n          var downloads = [];\n\n          for (var route in routingTable) {\n            if (route.length > 0) {\n              var filePath = path.join(dirPath, route);\n              downloads.push(downloadDataToDisk(swarmUrl)(routingTable[route])(filePath));\n            }\n\n            ;\n          }\n\n          ;\n          return Promise.all(downloads).then(function () {\n            return dirPath;\n          });\n        });\n      };\n    };\n  }; // String -> Uint8Array -> Promise String\n  //   Uploads raw data to Swarm.\n  //   Returns a promise with the uploaded hash.\n\n\n  var uploadData = function uploadData(swarmUrl) {\n    return function (data) {\n      return request(\"\".concat(swarmUrl, \"/bzzr:/\"), {\n        body: typeof data === \"string\" ? fromString(data) : data,\n        method: \"POST\"\n      });\n    };\n  }; // String -> String -> String -> File -> Promise String\n  //   Uploads a file to the Swarm manifest at a given hash, under a specific\n  //   route. Returns a promise containing the uploaded hash.\n  //   FIXME: for some reasons Swarm-Gateways is sometimes returning\n  //   error 404 (bad request), so we retry up to 3 times. Why?\n\n\n  var uploadToManifest = function uploadToManifest(swarmUrl) {\n    return function (hash) {\n      return function (route) {\n        return function (file) {\n          var attempt = function attempt(n) {\n            var slashRoute = route[0] === \"/\" ? route : \"/\" + route;\n            var url = \"\".concat(swarmUrl, \"/bzz:/\").concat(hash).concat(slashRoute);\n            var opt = {\n              method: \"PUT\",\n              headers: {\n                \"Content-Type\": file.type\n              },\n              body: file.data\n            };\n            return request(url, opt).then(function (response) {\n              if (response.indexOf(\"error\") !== -1) {\n                throw response;\n              }\n\n              return response;\n            }).catch(function (e) {\n              return n > 0 && attempt(n - 1);\n            });\n          };\n\n          return attempt(3);\n        };\n      };\n    };\n  }; // String -> {type: String, data: Uint8Array} -> Promise String\n\n\n  var uploadFile = function uploadFile(swarmUrl) {\n    return function (file) {\n      return uploadDirectory(swarmUrl)({\n        \"\": file\n      });\n    };\n  }; // String -> String -> Promise String\n\n\n  var uploadFileFromDisk = function uploadFileFromDisk(swarmUrl) {\n    return function (filePath) {\n      return fs.readFile(filePath).then(function (data) {\n        return uploadFile(swarmUrl)({\n          type: mimetype.lookup(filePath),\n          data: data\n        });\n      });\n    };\n  }; // String -> Map String File -> Promise String\n  //   Uploads a directory to Swarm. The directory is\n  //   represented as a map of routes and files.\n  //   A default path is encoded by having a \"\" route.\n\n\n  var uploadDirectory = function uploadDirectory(swarmUrl) {\n    return function (directory) {\n      return uploadData(swarmUrl)(\"{}\").then(function (hash) {\n        var uploadRoute = function uploadRoute(route) {\n          return function (hash) {\n            return uploadToManifest(swarmUrl)(hash)(route)(directory[route]);\n          };\n        };\n\n        var uploadToHash = function uploadToHash(hash, route) {\n          return hash.then(uploadRoute(route));\n        };\n\n        return Object.keys(directory).reduce(uploadToHash, Promise.resolve(hash));\n      });\n    };\n  }; // String -> Promise String\n\n\n  var uploadDataFromDisk = function uploadDataFromDisk(swarmUrl) {\n    return function (filePath) {\n      return fs.readFile(filePath).then(uploadData(swarmUrl));\n    };\n  }; // String -> Nullable String -> String -> Promise String\n\n\n  var uploadDirectoryFromDisk = function uploadDirectoryFromDisk(swarmUrl) {\n    return function (defaultPath) {\n      return function (dirPath) {\n        return files.directoryTree(dirPath).then(function (fullPaths) {\n          return Promise.all(fullPaths.map(function (path) {\n            return fs.readFile(path);\n          })).then(function (datas) {\n            var paths = fullPaths.map(function (path) {\n              return path.slice(dirPath.length);\n            });\n            var types = fullPaths.map(function (path) {\n              return mimetype.lookup(path) || \"text/plain\";\n            });\n            return toMap(paths)(datas.map(function (data, i) {\n              return {\n                type: types[i],\n                data: data\n              };\n            }));\n          });\n        }).then(function (directory) {\n          return merge(defaultPath ? {\n            \"\": directory[defaultPath]\n          } : {})(directory);\n        }).then(uploadDirectory(swarmUrl));\n      };\n    };\n  }; // String -> UploadInfo -> Promise String\n  //   Simplified multi-type upload which calls the correct\n  //   one based on the type of the argument given.\n\n\n  var _upload = function upload(swarmUrl) {\n    return function (arg) {\n      // Upload raw data from browser\n      if (arg.pick === \"data\") {\n        return pick.data().then(uploadData(swarmUrl)); // Upload a file from browser\n      } else if (arg.pick === \"file\") {\n        return pick.file().then(uploadFile(swarmUrl)); // Upload a directory from browser\n      } else if (arg.pick === \"directory\") {\n        return pick.directory().then(uploadDirectory(swarmUrl)); // Upload directory/file from disk\n      } else if (arg.path) {\n        switch (arg.kind) {\n          case \"data\":\n            return uploadDataFromDisk(swarmUrl)(arg.path);\n\n          case \"file\":\n            return uploadFileFromDisk(swarmUrl)(arg.path);\n\n          case \"directory\":\n            return uploadDirectoryFromDisk(swarmUrl)(arg.defaultFile)(arg.path);\n        }\n\n        ; // Upload UTF-8 string or raw data (buffer)\n      } else if (arg.length || typeof arg === \"string\") {\n        return uploadData(swarmUrl)(arg); // Upload directory with JSON\n      } else if (arg instanceof Object) {\n        return uploadDirectory(swarmUrl)(arg);\n      }\n\n      return Promise.reject(new Error(\"Bad arguments\"));\n    };\n  }; // String -> String -> Nullable String -> Promise (String | Uint8Array | Map String Uint8Array)\n  //   Simplified multi-type download which calls the correct function based on\n  //   the type of the argument given, and on whether the Swwarm address has a\n  //   directory or a file.\n\n\n  var _download = function download(swarmUrl) {\n    return function (hash) {\n      return function (path) {\n        return isDirectory(swarmUrl)(hash).then(function (isDir) {\n          if (isDir) {\n            return path ? downloadDirectoryToDisk(swarmUrl)(hash)(path) : downloadDirectory(swarmUrl)(hash);\n          } else {\n            return path ? downloadDataToDisk(swarmUrl)(hash)(path) : downloadData(swarmUrl)(hash);\n          }\n        });\n      };\n    };\n  }; // String -> Promise String\n  //   Downloads the Swarm binaries into a path. Returns a promise that only\n  //   resolves when the exact Swarm file is there, and verified to be correct.\n  //   If it was already there to begin with, skips the download.\n\n\n  var downloadBinary = function downloadBinary(path, archives) {\n    var system = os.platform().replace(\"win32\", \"windows\") + \"-\" + (os.arch() === \"x64\" ? \"amd64\" : \"386\");\n    var archive = (archives || defaultArchives)[system];\n    var archiveUrl = downloadUrl + archive.archive + \".tar.gz\";\n    var archiveMD5 = archive.archiveMD5;\n    var binaryMD5 = archive.binaryMD5;\n    return files.safeDownloadArchived(archiveUrl)(archiveMD5)(binaryMD5)(path);\n  }; // type SwarmSetup = {\n  //   account : String,\n  //   password : String,\n  //   dataDir : String,\n  //   binPath : String,\n  //   ensApi : String,\n  //   onDownloadProgress : Number ~> (),\n  //   archives : [{\n  //     archive: String,\n  //     binaryMD5: String,\n  //     archiveMD5: String\n  //   }]\n  // }\n  // SwarmSetup ~> Promise Process\n  //   Starts the Swarm process.\n\n\n  var startProcess = function startProcess(swarmSetup) {\n    return new Promise(function (resolve, reject) {\n      var spawn = child_process.spawn;\n\n      var hasString = function hasString(str) {\n        return function (buffer) {\n          return ('' + buffer).indexOf(str) !== -1;\n        };\n      };\n\n      var account = swarmSetup.account,\n          password = swarmSetup.password,\n          dataDir = swarmSetup.dataDir,\n          ensApi = swarmSetup.ensApi,\n          privateKey = swarmSetup.privateKey;\n      var STARTUP_TIMEOUT_SECS = 3;\n      var WAITING_PASSWORD = 0;\n      var STARTING = 1;\n      var LISTENING = 2;\n      var PASSWORD_PROMPT_HOOK = \"Passphrase\";\n      var LISTENING_HOOK = \"Swarm http proxy started\";\n      var state = WAITING_PASSWORD;\n      var swarmProcess = spawn(swarmSetup.binPath, ['--bzzaccount', account || privateKey, '--datadir', dataDir, '--ens-api', ensApi]);\n\n      var handleProcessOutput = function handleProcessOutput(data) {\n        if (state === WAITING_PASSWORD && hasString(PASSWORD_PROMPT_HOOK)(data)) {\n          setTimeout(function () {\n            state = STARTING;\n            swarmProcess.stdin.write(password + '\\n');\n          }, 500);\n        } else if (hasString(LISTENING_HOOK)(data)) {\n          state = LISTENING;\n          clearTimeout(timeout);\n          resolve(swarmProcess);\n        }\n      };\n\n      swarmProcess.stdout.on('data', handleProcessOutput);\n      swar