accept both accept header and transfer syntax uid

platform/core/src/utils/generateAcceptHeader.ts

@@ -0,0 +1,58 @@
+const generateAcceptHeader = (
+  configAcceptHeader = [],
+  requestTransferSyntaxUID = null,
+  omitQuotationForMultipartRequest = false
+): string[] => {
+  //if acceptedHeader is passed by config use it as it.
+  if (configAcceptHeader.length > 0) {
+    return configAcceptHeader;
+  }
+
+  let acceptHeader = ['multipart/related'];
+  if (requestTransferSyntaxUID && typeForTS[requestTransferSyntaxUID]) {
+    const type = typeForTS[requestTransferSyntaxUID];
+    acceptHeader.push('type=' + type);
+    acceptHeader.push('transfer-syntax=' + requestTransferSyntaxUID);
+  } else {
+    acceptHeader.push('type=application/octet-stream');
+  }
+
+  if (!omitQuotationForMultipartRequest) {
+    //need to add quotation for each mime type of each accept entry
+    acceptHeader = acceptHeader.map(mime => {
+      if (mime.startsWith('type=')) {
+        const quotedParam = 'type="' + mime.substring(5, mime.length) + '"';
+        return quotedParam;
+      }
+      if (mime.startsWith('transfer-syntax=')) {
+        const quotedParam =
+          'transfer-syntax="' + mime.substring(16, mime.length) + '"';
+        return quotedParam;
+      } else {
+        return mime;
+      }
+    });
+  }
+
+  return [acceptHeader.join('; ')];
+};
+
+const typeForTS = {
+  '*': 'application/octet-stream',
+  '1.2.840.10008.1.2.1': 'application/octet-stream',
+  '1.2.840.10008.1.2': 'application/octet-stream',
+  '1.2.840.10008.1.2.2': 'application/octet-stream',
+  '1.2.840.10008.1.2.4.70': 'image/jpeg',
+  '1.2.840.10008.1.2.4.50': 'image/jpeg',
+  '1.2.840.10008.1.2.4.51': 'image/dicom+jpeg',
+  '1.2.840.10008.1.2.4.57': 'image/jpeg',
+  '1.2.840.10008.1.2.5': 'image/dicom-rle',
+  '1.2.840.10008.1.2.4.80': 'image/jls',
+  '1.2.840.10008.1.2.4.81': 'image/jls',
+  '1.2.840.10008.1.2.4.90': 'image/jp2',
+  '1.2.840.10008.1.2.4.91': 'image/jp2',
+  '1.2.840.10008.1.2.4.92': 'image/jpx',
+  '1.2.840.10008.1.2.4.93': 'image/jpx',
+};
+
+export default generateAcceptHeader;

platform/core/src/utils/index.js

@@ -13,6 +13,7 @@ import Queue from './Queue';
 import isDicomUid from './isDicomUid';
 import formatDate from './formatDate';
 import formatPN from './formatPN';
+import generateAcceptHeader from './generateAcceptHeader';
 import resolveObjectPath from './resolveObjectPath';
 import hierarchicalListUtils from './hierarchicalListUtils';
 import progressTrackingUtils from './progressTrackingUtils';
@@ -74,6 +75,7 @@ const utils = {
   subscribeToNextViewportGridChange,
   splitComma,
   getSplitParam,
+  generateAcceptHeader,
 };
 
 export {
@@ -105,6 +107,7 @@ export {
   downloadCSVReport,
   splitComma,
   getSplitParam,
+  generateAcceptHeader,
 };
 
 export default utils;

platform/docs/docs/configuration/configurationFiles.md

@@ -113,6 +113,7 @@ Here are a list of some options available:
   decoding. Defaults to minimum of `navigator.hardwareConcurrency` and
   what is specified by `maxNumberOfWebWorkers`. Some windows machines require smaller values.
 - `acceptHeader` : accept header to request specific dicom transfer syntax ex : [ 'multipart/related; type=image/jls; q=1', 'multipart/related; type=application/octet-stream; q=0.1' ]
+- `requestTransferSyntaxUID` : Request a specific Tansfer syntax from dicom web server ex: 1.2.840.10008.1.2.4.80  (applyed only if acceptHeader is not set)
 - `omitQuotationForMultipartRequest`: Some servers (e.g., .NET) require the `multipart/related` request to be sent without quotation marks. Defaults to `false`. If your server doesn't require this, then setting this flag to `true` might improve performance (by removing the need for preflight requests). Also note that
 if auth headers are used, a preflight request is required.
 - `maxNumRequests`: The maximum number of requests to allow in parallel. It is an object with keys of `interaction`, `thumbnail`, and `prefetch`. You can specify a specific number for each type.