smc-hub
Version:
CoCalc: Backend webserver component
252 lines • 11.9 kB
JavaScript
;
/*
* This file is part of CoCalc: Copyright © 2020 Sagemath, Inc.
* License: AGPLv3 s.t. "Commons Clause" – see LICENSE.md for details
*/
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
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function verb(n) { return function (v) { return step([n, v]); }; }
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case 0: case 1: t = op; break;
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}
};
var __read = (this && this.__read) || function (o, n) {
var m = typeof Symbol === "function" && o[Symbol.iterator];
if (!m) return o;
var i = m.call(o), r, ar = [], e;
try {
while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
}
catch (error) { e = { error: error }; }
finally {
try {
if (r && !r.done && (m = i["return"])) m.call(i);
}
finally { if (e) throw e.error; }
}
return ar;
};
var __spreadArray = (this && this.__spreadArray) || function (to, from) {
for (var i = 0, il = from.length, j = to.length; i < il; i++, j++)
to[j] = from[i];
return to;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.render_public_path = void 0;
/*
Render a public path
*/
// Do not backend render any file beyond this size, instead showing
// a download link. This is to avoid a share server blocking for
// a long time or using a lot of RAM.
var MB = 1000000;
var MAX_SIZE_MB = 10;
// I want to raise this, but right now our Markdown and HTML renderers
// are VERY slow on big files:
var MAX_SIZE_HIGHLIGHT_MB = 0.5;
var os_path = __importStar(require("path"));
var fs_1 = require("fs");
var awaiting_1 = require("awaiting");
var misc_1 = require("smc-util/misc");
var app_framework_1 = require("smc-webapp/app-framework");
var public_path_1 = require("smc-webapp/share/public-path");
var file_contents_1 = require("smc-webapp/share/file-contents");
var directory_listing_1 = require("smc-webapp/share/directory-listing");
var listing_1 = require("./listing");
var util_1 = require("./util");
var base_path_1 = __importDefault(require("smc-util-node/base-path"));
function render_public_path(opts) {
return __awaiter(this, void 0, void 0, function () {
function dbg() {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
console.log.apply(console, __spreadArray(["render_public_path('" + path_to_file + "')"], __read(args)));
}
var path_to_file, stats, err_1, files, err_2, reverse, sort, component_1, noindex, why, content, ext, err_3, highlight, component, subtitle;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
path_to_file = os_path.join(opts.dir, opts.path);
dbg();
_a.label = 1;
case 1:
_a.trys.push([1, 3, , 4]);
return [4 /*yield*/, awaiting_1.callback(fs_1.stat, path_to_file)];
case 2:
stats = _a.sent();
return [3 /*break*/, 4];
case 3:
err_1 = _a.sent();
dbg("error", err_1);
opts.res.sendStatus(404);
return [2 /*return*/];
case 4:
if (!stats.isDirectory()) return [3 /*break*/, 9];
dbg("is directory");
if (opts.path.slice(-1) !== "/") {
util_1.redirect_to_directory(opts.req, opts.res);
return [2 /*return*/];
}
files = void 0;
_a.label = 5;
case 5:
_a.trys.push([5, 7, , 8]);
return [4 /*yield*/, listing_1.get_listing(path_to_file)];
case 6:
files = _a.sent();
return [3 /*break*/, 8];
case 7:
err_2 = _a.sent();
// TODO: show directory listing
opts.res.send("Error getting directory listing -- " + err_2);
return [2 /*return*/];
case 8:
reverse = void 0;
sort = void 0;
if (opts.sort[0] === "-") {
reverse = true;
sort = opts.sort.slice(1);
}
else {
reverse = false;
sort = opts.sort;
}
files.sort(misc_1.field_cmp(sort));
if (reverse) {
files.reverse();
}
component_1 = app_framework_1.React.createElement(directory_listing_1.DirectoryListing, {
hidden: opts.hidden,
info: opts.info,
files: files,
viewer: opts.viewer,
path: opts.path,
views: opts.views,
base_path: base_path_1.default,
});
// NOTE: last true is because we never index directory listings -- instead we want
// users to find specific files by their content and name
opts.react(opts.res, component_1, opts.path, true);
return [2 /*return*/];
case 9:
dbg("is file");
if (opts.viewer == "share") {
// do index a file if we will be showing it via the share server.
noindex = false;
}
else {
noindex = true; // never index content that is raw or embedded
}
why = undefined;
content = undefined;
ext = misc_1.filename_extension(path_to_file);
if (ext != null)
ext = ext.toLowerCase();
if (!!file_contents_1.has_viewer(ext)) return [3 /*break*/, 10];
why = "We do not have a way to display this file.";
return [3 /*break*/, 17];
case 10:
if (!(stats.size > MAX_SIZE_MB * MB)) return [3 /*break*/, 11];
why = "File too big to be shown.";
return [3 /*break*/, 17];
case 11:
if (!file_contents_1.needs_content(ext)) return [3 /*break*/, 16];
_a.label = 12;
case 12:
_a.trys.push([12, 14, , 15]);
return [4 /*yield*/, awaiting_1.callback(fs_1.readFile, path_to_file)];
case 13:
content = (_a.sent()).toString();
return [3 /*break*/, 15];
case 14:
err_3 = _a.sent();
opts.res.sendStatus(404);
return [2 /*return*/];
case 15: return [3 /*break*/, 17];
case 16:
content = "";
_a.label = 17;
case 17:
if (ext == "ipynb") {
// ipynb files tend to be very large, but still easy to render, due to images.
// This is a little dangerous though! We will eventually need to do something
// maybe async with a timeout...
highlight = true;
}
else {
highlight = stats.size < MAX_SIZE_HIGHLIGHT_MB * MB;
}
component = app_framework_1.React.createElement(public_path_1.PublicPath, {
info: opts.info,
content: content,
viewer: opts.viewer,
path: opts.path,
why: why,
size: stats.size,
highlight: highlight,
authors: opts.authors,
base_path: base_path_1.default,
views: opts.views,
});
subtitle = misc_1.path_to_title(opts.path);
opts.react(opts.res, component, subtitle, noindex);
return [2 /*return*/];
}
});
});
}
exports.render_public_path = render_public_path;
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