RNS-Things/reticulum-meshchatX
1
0
Fork 0
Code Issues 1 Pull Requests Actions Packages Projects Releases 8 Wiki Activity

add support for downloading files from nomadnet nodes

Browse Source
This commit is contained in:
liamcottle
2024-05-10 23:04:39 +12:00
parent 41a66409f7
commit 60999749fa
1 changed files with 85 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

91
public/index.html
View File

@@ -493,6 +493,17 @@
<pre v-else v-html="nodePageContent" class="h-full text-wrap"></pre>
</div>
<!-- file download bottom bar -->
<div v-if="isDownloadingNodeFile" class="flex w-full border-gray-300 border-t p-2">
<div class="my-auto mr-2">
<svg class="animate-spin h-5 w-5" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24">
<circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
<path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path>
</svg>
</div>
<div class="my-auto">Downloading: {{ nodeFilePath }} ({{ nodeFileProgress }}%)</div>
</div>
</div>
</div>
@@ -542,6 +553,10 @@
nodePageContent: null,
nodePageProgress: 0,
isDownloadingNodeFile: false,
nodeFilePath: null,
nodeFileProgress: 0,
nomadnetPageDownloadCallbacks: {},
nomadnetFileDownloadCallbacks: {},
@@ -1120,15 +1135,48 @@
const parsedUrl = this.parseNomadnetworkUrl(url);
if(parsedUrl != null){
// file urls are not supported yet
if(parsedUrl.path.startsWith("/file/")){
alert("file urls are not supported yet")
return;
}
// use parsed destination hash, or fallback to selected node destination hash
const destinationHash = parsedUrl.destination_hash || this.selectedNode.destination_hash;
// download file
if(parsedUrl.path.startsWith("/file/")){
// prevent simultaneous downloads
if(this.isDownloadingNodeFile){
alert("An existing download is in progress. Please wait for it to finish beforing starting another download.");
return;
}
// update ui
this.isDownloadingNodeFile = true;
this.nodeFilePath = parsedUrl.path.split("/").pop();
this.nodeFileProgress = 0;
// start file download
this.downloadNomadNetFile(destinationHash, parsedUrl.path, (fileName, fileBytesBase64) => {
// no longer downloading
this.isDownloadingNodeFile = false;
// download file to browser
this.downloadFileFromBase64(fileName, fileBytesBase64);
}, (failureReason) => {
// no longer downloading
this.isDownloadingNodeFile = false;
// show error message
alert(`Failed to download file: ${failureReason}`);
}, (progress) => {
this.nodeFileProgress = Math.round(progress * 100);
});
return;
}
// update selected node, so relative urls work correctly when returned by the new node
this.selectedNode = this.nodes[destinationHash] || {
name: "Unknown Node",
@@ -1199,6 +1247,37 @@
// open new tab
window.open(fileUrl);
},
downloadFileFromBase64: async function(fileName, fileBytesBase64) {
// create blob from base64 encoded file bytes
const byteCharacters = atob(fileBytesBase64);
const byteNumbers = new Array(byteCharacters.length);
for(let i = 0; i < byteCharacters.length; i++){
byteNumbers[i] = byteCharacters.charCodeAt(i);
}
const byteArray = new Uint8Array(byteNumbers);
const blob = new Blob([byteArray]);
// create object url for blob
const objectUrl = URL.createObjectURL(blob);
// create link element to download blob
const link = document.createElement('a');
link.href = objectUrl;
link.download = fileName;
link.style.display = "none";
document.body.append(link);
// click link to download file in browser
link.click();
// link element is no longer needed
link.remove();
// revoke object url to clear memory
setTimeout(() => URL.revokeObjectURL(objectUrl), 10000);
},
onPeerClick: function(peer) {
this.selectedNode = null;