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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <title>File downloader</title> | |
| </head> | |
| <body> | |
| <div id="progress-msg">File is downloading. Please wait...</div> | |
| <script> | |
| function saveAs(blob, fileName) { | |
| var url = window.URL.createObjectURL(blob); | |
| var anchorElem = document.createElement("a"); | |
| anchorElem.style = "display: none"; | |
| anchorElem.href = url; | |
| anchorElem.download = fileName; | |
| document.body.appendChild(anchorElem); | |
| anchorElem.click(); | |
| document.body.removeChild(anchorElem); | |
| // On Edge, revokeObjectURL should be called only after | |
| // a.click() has completed, atleast on EdgeHTML 15.15048 | |
| setTimeout(function() { | |
| window.URL.revokeObjectURL(url); | |
| }, 1000); | |
| } | |
| function downloadFile(fileName, fileUrl){ | |
| var xhr = new XMLHttpRequest(); | |
| xhr.open("GET", fileUrl, true); | |
| xhr.responseType = 'blob'; | |
| xhr.onload = function(e) { | |
| if (this.status == 200) { | |
| var blob = this.response; | |
| var arrayBuffer; | |
| var fileReader = new FileReader(); | |
| fileReader.onload = function() { | |
| arrayBuffer = this.result; | |
| var byteCharacters = atob(new Uint8Array(arrayBuffer).reduce((data, byte) => data + String.fromCharCode(byte), '')); | |
| var byteNumbers = new Array(byteCharacters.length); | |
| for (var i = 0; i < byteCharacters.length; i++) { | |
| byteNumbers[i] = byteCharacters.charCodeAt(i); | |
| } | |
| var byteArray = new Uint8Array(byteNumbers); | |
| var blob1 = new Blob([byteArray], {type: "application/octet-stream"}); | |
| saveAs(blob1, fileName); | |
| document.getElementById('progress-msg').innerHTML = 'File download completed!!!'; | |
| }; | |
| fileReader.readAsArrayBuffer(blob); | |
| }else{ | |
| document.getElementById('progress-msg').innerHTML = 'Error in downloading file. Please try again!!!'; | |
| } | |
| }; | |
| xhr.onerror = function(e) { | |
| document.getElementById('progress-msg').innerHTML = 'Error in downloading file. Please try again!!!'; | |
| }; | |
| xhr.send(); | |
| } | |
| function getParameterByName(name, url) { | |
| if (!url) { | |
| url = window.location.href; | |
| } | |
| name = name.replace(/[\[\]]/g, "\\$&"); | |
| var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"), | |
| results = regex.exec(url); | |
| if (!results) return null; | |
| if (!results[2]) return ''; | |
| return decodeURIComponent(results[2].replace(/\+/g, " ")); | |
| } | |
| //params = new URLSearchParams(window.location.search) | |
| //url = params.get('url'); | |
| url = getParameterByName('url', window.location.search); | |
| fileName = getParameterByName('fileName', window.location.search); | |
| if(url){ | |
| fileName = fileName ? fileName :'newFile'; | |
| downloadFile(fileName, url); | |
| } | |
| </script> | |
| </body> | |
| </html> |
hey , thanks for your code.
I try same code:
`var blob = new Blob([contentOfFile], { type: file.type });
var url = window.URL.createObjectURL(blob);
var anchorElem = document.createElement("a");
anchorElem.style = "display: none";
anchorElem.href = url;
anchorElem.download = file.name;
document.body.appendChild(anchorElem);
anchorElem.click();
document.body.removeChild(anchorElem);`
I am try in on outlook 2016 for mac. my mac version is macOS Sierra .
I get always same message not matter what I try:
Thank you very much again
i understood what u r doing. u r directly downloading blob in outlook addin and then trying to open it by giving to script. It wont't work that way.
u can never open blob directly from browser. it will throw error u got.
If ur blob is download from a link, then construct a link like below :
ex : s3URL is the blob url where content is encoded. and targetFileName is file name which will be save into browser with given name.
i hosted my above html with script in location : https://sf.xenovusapps.net
now the target url : "https://sf.xenovusapps.net/fd?fileName=" + encodeURIComponent(targetFileName) + "&url=" + encodeURIComponent(s3URL);
when user clicks on this link, it will be opened in browser and file automatically downloaded and saved to file system.
First,Thank you very much for your help.
I didn't really understand your soultion yet.
What I do until now and works in all my tests instead outlook desktop for mac( all browsers in windows and mac and outlook desktop for windows) was to create the blob like I do above(last comment) and then use 'saveAs' functiuon from FileSaver library: https://github.com/eligrey/FileSaver.js/
Now, I try to understand your solution.:
what you mean by 'If ur blob is download from a link' ? I create my blob on client side from content I get from server.
What you man by 's3URL is the blob url where content is encoded'? You mean the URL when using this: window.URL.createObjectURL(blob) ?
I don't understand how you get this link at the end of all the procedure ? https://sf.xenovusapps.net/fd?fileName=test.jpg&url=https%3A%2F%2Fdorm.s3.amazonaws.com%2F6818e1b592bafc815545d065d2b7ef85de5685229e11712176aaad1fcbb9d8f2%3FSignature%3Du%252B8LD4KKZJFJhkrUUQ%252Bs4L56Wh0%253D%26Expires%3D1539061262%26AWSAccessKeyId%3DAKIAJ66BMFSXF56WIKNA
Where is the blob url in this link,I don't really understand how you build this url?
Thank you very much again !!!!
this is blob url => if i hit this url, i will get base 64 encoded content.
https://dorm.s3.amazonaws.com/6818e1b592bafc815545d065d2b7ef85de5685229e11712176aaad1fcbb9d8f2?Signature=u%2B8LD4KKZJFJhkrUUQ%2Bs4L56Wh0%3D&Expires=1539061262&AWSAccessKeyId=AKIAJ66BMFSXF56WIKNA
above base 64 content is not understood by user. so when i save that file to file system, javascript funciton is need to decode and save it. so above html hosted at https://sf.xenovusapps.net/fd will do that job.
@rajeevprasanna, we are also facing the same issue like @OriAmir.
We are developing outlook web add-in where we want to download file from outlook2016 client for Mac (OS : MacOS High Sierra). So tried to implement the above solution, but getting error as Failed to load resource: The operation couldn't be completed.(WebKitBlobResource error 1.).
This one downloads file blob which is in base 64 format. then decodes and save to local system