@shapediver/sdk.sdtf-v1
Version:
Official sdTF SDK for TypeScript
131 lines • 6.15 kB
JavaScript
;
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 __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.SdtfHttpClient = void 0;
const sdk_sdtf_core_1 = require("@shapediver/sdk.sdtf-core");
const axios_1 = __importDefault(require("axios"));
const SdtfBinarySdtf_1 = require("../binary_sdtf/SdtfBinarySdtf");
class SdtfHttpClient {
constructor(jsonContentUrl, authToken) {
this.binarySdtfParser = new SdtfBinarySdtf_1.SdtfBinarySdtf();
this.jsonContentUrl = jsonContentUrl;
this.basicHttpHeader = {};
if (authToken)
this.basicHttpHeader.authorization = 'Bearer ' + authToken;
}
calcUrl(uri) {
if (!uri)
return this.jsonContentUrl;
const index = this.jsonContentUrl.lastIndexOf('/');
return `${this.jsonContentUrl.substring(0, index)}/${uri}`;
}
getJsonContent() {
return __awaiter(this, void 0, void 0, function* () {
try {
const { data, partial } = yield this.fetch(this.jsonContentUrl, 0, this.binarySdtfParser.binaryHeaderLength);
if (partial) {
const [contentLength, _] = this.binarySdtfParser.readHeader(data);
const jsonContentBuffer = yield this.fetch(this.jsonContentUrl, 20, contentLength);
if (jsonContentBuffer.partial)
return [new DataView(jsonContentBuffer.data), undefined];
}
return this.binarySdtfParser.parseBinarySdtf(data);
}
catch (e) {
throw new sdk_sdtf_core_1.SdtfError(`Could not fetch sdTF JSON content: ${e.message}`);
}
});
}
getBinaryBuffer(uri, offset, length) {
return __awaiter(this, void 0, void 0, function* () {
try {
const { data, partial } = yield this.fetch(this.calcUrl(uri), offset, length);
if (partial) {
return [new DataView(data), undefined];
}
else {
return [new DataView(data, offset, length), data];
}
}
catch (e) {
throw new sdk_sdtf_core_1.SdtfError(`Could not fetch sdTF binary buffer: ${e.message}`);
}
});
}
fetch(url, offset, length) {
return __awaiter(this, void 0, void 0, function* () {
var _a, _b;
let response;
try {
response = yield axios_1.default.head(url, { headers: this.basicHttpHeader });
}
catch (e) {
throw new sdk_sdtf_core_1.SdtfError(e.message);
}
if (response.status > 299)
throw new sdk_sdtf_core_1.SdtfError(`Received HTTP status ${response.status}.`);
const contentEncoding = !!((_a = response.headers['Content-Encoding']) !== null && _a !== void 0 ? _a : response.headers['content-encoding']);
const acceptRanges = (_b = response.headers['Accept-Ranges']) !== null && _b !== void 0 ? _b : response.headers['accept-ranges'];
const rangeRequestsSupported = !contentEncoding && acceptRanges === 'bytes';
const data = rangeRequestsSupported
? yield this.fetchPartially(url, offset, length)
: yield this.fetchFully(url);
const buffer = data instanceof ArrayBuffer ? data : Uint8Array.from(data).buffer;
return {
data: buffer,
partial: rangeRequestsSupported,
};
});
}
fetchPartially(url, offset, length) {
return __awaiter(this, void 0, void 0, function* () {
let response;
try {
response = yield axios_1.default.get(url, {
headers: Object.assign(Object.assign({}, this.basicHttpHeader), { range: `bytes=${offset}-${offset + length - 1}` }),
responseType: 'arraybuffer',
});
}
catch (e) {
throw new sdk_sdtf_core_1.SdtfError(e.message);
}
if (response.status === 416)
throw new sdk_sdtf_core_1.SdtfError('Invalid range requested.');
if (response.status !== 200 && response.status !== 206)
throw new sdk_sdtf_core_1.SdtfError(`Received HTTP status ${response.status}.`);
const data = response.data;
const buffer = data instanceof ArrayBuffer ? data : Uint8Array.from(data).buffer;
return buffer.byteLength > length ? buffer.slice(offset, offset + length) : buffer;
});
}
fetchFully(url) {
return __awaiter(this, void 0, void 0, function* () {
let response;
try {
response = yield axios_1.default.get(url, {
headers: this.basicHttpHeader,
responseType: 'arraybuffer',
});
}
catch (e) {
throw new sdk_sdtf_core_1.SdtfError(e.message);
}
if (response.status !== 200)
throw new sdk_sdtf_core_1.SdtfError(`Received HTTP status ${response.status}.`);
return response.data;
});
}
}
exports.SdtfHttpClient = SdtfHttpClient;
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