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pankaj_agarwal's avatar
pankaj_agarwal
Explorer | Level 3
7 years ago

How to use the public url to access files

I am trying to create an app in c# which will download files from a given url which looks like this https://wixlabs---dropbox-folder.appspot.com/index?instance=UexTyTTXTALjKbz1f1P3H5nZAFTiMsLw2wWcu_...
Developers
Greg-DB's avatar
Greg-DB
Icon for Dropbox Community Moderator rankDropbox Community Moderator
7 years ago

[Cross-linking for reference: https://stackoverflow.com/questions/54691106/need-help-coding-a-downloader-for-dropbox ]

The GetSharedLinkMetadataAsync method is meant for accessing the information about shared links from Dropbox itself, e.g., links like this:

https://www.dropbox.com/s/yvkdov5srlqalkd/Getting%20Started.pdf?dl=0

The link you shared is from "appspot.com", so it won't work with GetSharedLinkMetadataAsync.

If you're just trying to download a file from a publicly accessible link to the local filesystem, you don't need to use the Dropbox API; you can just use an HTTPS client.

If you want to save the linked file directly to a Dropbox account, you should instead use SaveUrlAsync.

  • pankaj_agarwal's avatar
    pankaj_agarwal
    Explorer | Level 3
    7 years ago

    Can you give me some pointers on how to achieve this because with WebClient I am getting a HTML Page.

    • Greg-DB's avatar
      Greg-DB
      Icon for Dropbox Community Moderator rankDropbox Community Moderator
      7 years ago

      What specifically are you trying to do, and what are you stuck on at this point?

      If you're trying to downloading from appspot.com using WebClient, I can't offer help with that, as that's not related to Dropbox. (That said, what you describe does seem expected, since the link you shared is just to an HTML web page. It sounds like you probably would want to use the link to the file on that page instead.)

      If you're trying to use SaveUrlAsync, or if you are trying to use GetSharedLinkMetadataAsync and switched to an actual Dropbox shared link, please shared your updated code and let me know what isn't working.

      • pankaj_agarwal's avatar
        pankaj_agarwal
        Explorer | Level 3
        7 years ago

        The above link shows a folder with files in the browser. I am trying to download those files. I tried attaching the html file here but it is not working so I am pasting the code here:

         

         

        <!DOCTYPE html>
<html ng-app="myApp">
<head>
<base href="/">
<title>Dropbox Folder</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<link rel="icon" href="assets/images/favicon.ico" type="image/x-icon">
<link rel="stylesheet" href="//static.parastorage.com/services/third-party/fonts/Helvetica/fontFace.css">
<link rel="stylesheet" href="styles/index.css"/>
<script src="//static.parastorage.com/services/js-sdk/1.108.0/js/wix-private.min.js"></script>
<script type="text/javascript">
var initialState = {"APP_ID":"14924864-56d5-b94b-060f-cd57bd16cc26","DEFAULT_LANGUAGE":"en","DISPLAY_MODE_FILES":"files","DISPLAY_MODE_FOLDER":"folder","LIST_FULL_WIDTH":1,"LIST_PARTIAL_WIDTH":0,"FOLDER_STYLE_OUTLINE":"outline","FOLDER_STYLE_SOLID":"solid","SIZE_SMALL":"small","SIZE_LARGE":"large","appName":"myApp","origin":"app_settings","widget_origin":"widget","appId":"14924864-56d5-b94b-060f-cd57bd16cc26","AUTH_URL":"https://www.dropbox.com/oauth2/authorize?client_id=rn9cfkc30p3l3po&response_type=token&state=testtoken&force_reapprove=false","APP_KEY":"rn9cfkc30p3l3po","REGISTER_URL":"https://www.dropbox.com/register","design":{"folder_row":{"color":"color-8","opacity":0.15},"bread_crumbs":{"color":"color-4","text":"Body-M","fontSize":12,"arrowColor":"color-4"},"number_items":{"color":"color-4","text":"Body-M","fontSize":12},"connected_cloud":{"color":"color-8","text":"Body-M"},"empty_folder_header":{"text":"Body-L","color":"color-5","fontSize":15,"fontWeight":"bold"},"empty_folder_text":{"text":"Body-M","color":"color-4","fontSize":14},"empty_folder_image":{"color":"color-8"},"icon_color":{"name":"iconColor","value":"color-8","opacity":"0.8"},"folder_icon":{"textFont":{"name":"folderIconFont","value":"Body-M","theme":"font_8"},"textColor":{"name":"folderIconColor","value":"color-8"}},"list":{"title":{"textFont":{"name":"ListTitleFont","value":"Body-L","theme":"font_7","startWithSize":20,"maxSize":42},"textColor":{"name":"ListTitleColor","value":"color-5"}},"files_names":{"textFont":{"name":"ListFilesNamesFont","value":"Body-M","theme":"font_8","maxSize":22},"textColor":{"name":"ListFilesNamesColor","value":"color-4"}},"background":{"value":"color-1","name":"listBackgroundColor","opacity":"1"},"border":{"value":"color-5","name":"listBorderColor","opacity":"0.2"},"icons":{"name":"iconsListColor","value":"color-8"}}},"data":{"settings":{"design":{"folder":{"icon_size":"small","style":"outline"},"list":{"show_numbers_of_items":1,"show_preview":1}},"lang":"en","email":{"text":"","show":1},"layout":{"type":"files"},"account":{"folderPath":"[{\"name\":\"Dropbox\",\"path_lower\":\"/\"}]","folder":"OmniScreen","email":"omnicoomniscreen@gmail.com","name":"OmniScreen Omnico","accessToken":"","fullPath":"/omniscreen","connected":1},"title":{"show":1,"text":"OmniScreen"}}}};
initialState.locationParams = document.location.search;
</script>
<style wix-style type="text/css" ng-non-bindable="">
.folderRow::before {
background-color: {{color-8}};
opacity: 0.15;
}
.file-arrow #z-Stroke-2 {
stroke: {{color-4}};
}

.folder-path-text{
font-size: 12px !important;
color: {{color-4}};
{{Body-M}};
}

.items-row {
font-size: 12px !important;
color: {{color-4}};
{{Body-M}};
}

.title {
{{Body-L}};
font-size: 20px;
{{style.ListTitleFont}};
color: {{style.ListTitleColor color-5}};
}
.closeMe .closeMe-fill {
fill: {{style.ListTitleColor color-5}};
}
.folderName {
{{ style.ListFilesNamesFont Body-M}}
color: {{style.ListFilesNamesColor color-4}}
}

.extention , .fileNameNoExtention{
{{ style.ListFilesNamesFont Body-M}}
color: {{style.ListFilesNamesColor color-4}}
}

.items {
font-size: 12px !important;
color: {{color-4}};
{{Body-M}};
}

.ispopup {
background-color: {{style.listBackgroundColor color-1}};
}

.defaultBackground{
background-color: {{style.listBackgroundColor color-1}};
border : 1px solid rgba(0,0,0,0.2) ;
border-color: {{style.listBorderColor}} !important;
}

.previewBorder{
background-color: {{style.listBackgroundColor color-1}};
}

.webui-popover,.previewBorder,.full-screen-connected {
border-color: {{color-5}} ;
border-color: {{style.listBorderColor}} !important;
}
.full-screen-connected {
background-color: {{color-1}};
color: {{color-5}};
}
.divider , .lastDivider {
background-color: {{color-5}} ;
background-color: {{style.listBorderColor}};
}

.mCSB_dragger_bar.inited{
background-color: {{color-5}} !important;
background-color: {{style.listBorderColor}} !important;
}

#mCSB_2_scrollbar_vertical{

}

.webui-arrow {
border-top-color: {{style.listBorderColor color-5}} !important;
}

.arrowIcon .fill-svg, .mobileArrow .fill-svg , .home-icon path{
fill-rule: evenodd;
fill : {{style.iconsListColor color-8}} !important;
}

.downloadFolderIcon .stroke-svg , .downloadFolderIcon path{
stroke : {{style.iconsListColor color-8}};
}

.viewFileIcon .symbol-showComp path{
fill : {{style.iconsListColor color-8}};
}
.closeMe .closeMe-fill {
fill : {{style.iconsListColor color-8}};
}
.folder-path-text:not(.selected-folder){
color : {{style.iconsListColor color-8}};
}

.fileIcon .fill-svg , .folderIcon .fill-svg{
fill: {{style.iconsListColor color-8}};
}

.fileIcon .stroke-svg , .folderIcon .stroke-svg {
stroke: {{style.iconsListColor color-8}};
}

.folderLayoutIconFill .fill-svg , .folderLayoutIconNotFill .fill-svg {
fill: {{style.iconColor color-8}};
}

.folderLayoutIconFill .stroke-svg, .folderLayoutIconNotFill .stroke-svg{
stroke: {{style.iconColor color-8}};
}

.folderTitle{
{{style.folderIconFont Body-M}};
color : {{style.folderIconColor color-8}};
line-height: 1.4em;
}
.connected-cloud path {
stroke: {{color-8}};
}
.connected-cloud path.fill-connected {
fill: {{color-8}};
}
.connected-cloud--text {
{{Body-M}};
}

.empty-folder--header {
{{Body-L}};
color: {{color-5}};
font-size: 15px;
font-weight: bold;
}

.empty-folder--text {
{{Body-M}};
color: {{color-4}};
font-size: 14px;
}

.empty-folder--image svg g{
fill: {{color-8}} !important;
}
</style>
</head>
<body role="application">
<div ng-view class="my-app" tabindex="-1" role="main"></div>
<script src="scripts/bower-index.js"></script>
<script src="scripts/scripts-index.js"></script>
</body>
</html>

         

        There is a big JSON object which might be relevant as it shows links to dropbox but I am not sure how to make use of that.

        Basically being able to enumerate files and folders is what I am trying to achieve in my app. This is what I tried:

         

        private static void Fetch(string url)
{
using (var webClient = new WebClient())
{
var uri = new Uri(url);
//webClient.OpenReadCompleted += WebClient_OpenReadCompleted;
//webClient.OpenReadAsync(uri);
webClient.DownloadFileAsync(uri, @"D:\xyz.dat");
}
}

private static void WebClient_OpenReadCompleted(object sender, OpenReadCompletedEventArgs e)
{
using(StreamReader reader=new StreamReader(e.Result))
{
Console.WriteLine(reader.ReadToEnd());
}
}

         

         

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