adafruit · tannewt · Aug 17, 2022 · Aug 16, 2022 · Aug 16, 2022
diff --git a/docs/workflows.md b/docs/workflows.md
@@ -202,6 +202,24 @@ Example:
 curl -v -u :passw0rd -X PUT -L --location-trusted http://circuitpython.local/fs/lib/hello/world/
 ```
 
+##### Move
+Moves the directory at the given path to ``X-Destination``. Also known as rename.
+
+The custom `X-Destination` header stores the destination path of the directory.
+
+* `201 Created` - Directory renamed
+* `401 Unauthorized` - Incorrect password
+* `403 Forbidden` - No `CIRCUITPY_WEB_API_PASSWORD` set
+* `404 Not Found` - Source directory not found or destination path is missing
+* `409 Conflict` - USB is active and preventing file system modification
+* `412 Precondition Failed` - The destination path is already in use
+
+Example:
+
+```sh
+curl -v -u :passw0rd -X MOVE -H "X-Destination: /fs/lib/hello2/" -L --location-trusted http://circuitpython.local/fs/lib/hello/
+```
+
 ##### DELETE
 Deletes the directory and all of its contents.
 
@@ -214,7 +232,7 @@ Deletes the directory and all of its contents.
 Example:
 
 ```sh
-curl -v -u :passw0rd -X DELETE -L --location-trusted http://circuitpython.local/fs/lib/hello/world/
+curl -v -u :passw0rd -X DELETE -L --location-trusted http://circuitpython.local/fs/lib/hello2/world/
 ```
 
 
@@ -270,6 +288,25 @@ curl -v -u :passw0rd -L --location-trusted http://circuitpython.local/fs/lib/hel
 ```
 
 
+##### Move
+Moves the file at the given path to the ``X-Destination``. Also known as rename.
+
+The custom `X-Destination` header stores the destination path of the file.
+
+* `201 Created` - File renamed
+* `401 Unauthorized` - Incorrect password
+* `403 Forbidden` - No `CIRCUITPY_WEB_API_PASSWORD` set
+* `404 Not Found` - Source file not found or destination path is missing
+* `409 Conflict` - USB is active and preventing file system modification
+* `412 Precondition Failed` - The destination path is already in use
+
+Example:
+
+```sh
+curl -v -u :passw0rd -X MOVE -H "X-Destination: /fs/lib/hello/world2.txt" -L --location-trusted http://circuitpython.local/fs/lib/hello/world.txt
+```
+
+
 ##### DELETE
 Deletes the file.
 
@@ -283,7 +320,7 @@ Deletes the file.
 Example:
 
 ```sh
-curl -v -u :passw0rd -X DELETE -L --location-trusted http://circuitpython.local/fs/lib/hello/world.txt
+curl -v -u :passw0rd -X DELETE -L --location-trusted http://circuitpython.local/fs/lib/hello/world2.txt
 ```
 
 ### `/cp/`

diff --git a/supervisor/shared/web_workflow/static/directory.html b/supervisor/shared/web_workflow/static/directory.html
@@ -10,9 +10,9 @@
 <body>
     <h1><a href="/"><img src="/favicon.ico"/></a>&nbsp;<span id="path"></span></h1>
     <div id="usbwarning" style="display: none;">ℹ️ USB is using the storage. Only allowing reads. See <a href="https://learn.adafruit.com/circuitpython-essentials/circuitpython-storage">the CircuitPython Essentials: Storage guide</a> for details.</div>
-    <template id="row"><tr><td></td><td></td><td><a></a></td><td></td><td><button class="delete">🗑️</button></td><td><a class="edit_link" href="">Edit</a></td></tr></template>
+    <template id="row"><tr><td></td><td></td><td><a class="path"></a></td><td class="modtime"></td><td><button class="rename">✏️ Rename</button></td><td><button class="delete">🗑️ Delete</button></td><td><a class="edit_link" href=""><button>📝 Edit</button></a></td></tr></template>
     <table>
-        <thead><tr><th>Type</th><th>Size</th><th>Path</th><th>Modified</th><th></th></tr></thead>
+        <thead><tr><th>Type</th><th>Size</th><th>Path</th><th>Modified</th><th colspan="3"></th></tr></thead>
         <tbody></tbody>
     </table>
     <hr>

diff --git a/supervisor/shared/web_workflow/static/directory.js b/supervisor/shared/web_workflow/static/directory.js
@@ -5,15 +5,19 @@ var url_base = window.location;
 var current_path;
 var editable = undefined;
 
+function compareValues(a, b) {
+    if (a.directory == b.directory && a.name.toLowerCase() === b.name.toLowerCase()) {
+      return 0;
+    } else if (a.directory != b.directory) {
+      return a.directory < b.directory ? 1 : -1;
+    } else {
+      return a.name.toLowerCase() < b.name.toLowerCase() ? -1 : 1;
+    }
+}
+
 async function refresh_list() {
 
-    function compareValues(a, b) {
-        if (a.directory == b.directory && a.name.toLowerCase() === b.name.toLowerCase()) {
-          return 0;
-        } else {
-          return a.directory.toString().substring(3,4)+a.name.toLowerCase() < b.directory.toString().substring(3,4)+b.name.toLowerCase() ? -1 : 1;
-        }
-    }
+
 
     current_path = window.location.hash.substr(1);
     if (current_path == "") {
@@ -52,7 +56,7 @@ async function refresh_list() {
         }
     }
 
-    if (window.location.path != "/fs/") {
+    if (current_path != "/") {
         var clone = template.content.cloneNode(true);
         var td = clone.querySelectorAll("td");
         td[0].textContent = "📁";
@@ -62,6 +66,8 @@ async function refresh_list() {
         path.textContent = "..";
         // Remove the delete button
         td[4].replaceChildren();
+        td[5].replaceChildren();
+        td[6].replaceChildren();
         new_children.push(clone);
     }
 
@@ -82,31 +88,46 @@ async function refresh_list() {
             file_path = api_url;
         }
 
+        var text_file = false;
         if (f.directory) {
             icon = "📁";
         } else if(f.name.endsWith(".txt") ||
+                  f.name.endsWith(".env") ||
                   f.name.endsWith(".py") ||
                   f.name.endsWith(".js") ||
                   f.name.endsWith(".json")) {
             icon = "📄";
+            text_file = true;
         } else if (f.name.endsWith(".html")) {
             icon = "🌐";
+            text_file = true;
         }
         td[0].textContent = icon;
         td[1].textContent = f.file_size;
-        var path = clone.querySelector("a");
+        var path = clone.querySelector("a.path");
         path.href = file_path;
         path.textContent = f.name;
-        td[3].textContent = (new Date(f.modified_ns / 1000000)).toLocaleString();
+        let modtime = clone.querySelector("td.modtime");
+        modtime.textContent = (new Date(f.modified_ns / 1000000)).toLocaleString();
         var delete_button = clone.querySelector("button.delete");
         delete_button.value = api_url;
         delete_button.disabled = !editable;
         delete_button.onclick = del;
 
-        if (editable && !f.directory) {
+
+        var rename_button = clone.querySelector("button.rename");
+        rename_button.value = api_url;
+        rename_button.disabled = !editable;
+        rename_button.onclick = rename;
+
+        let edit_link = clone.querySelector(".edit_link");
+        if (text_file && editable && !f.directory) {
             edit_url = new URL(edit_url, url_base);
-            let edit_link = clone.querySelector(".edit_link");
             edit_link.href = edit_url
+        } else if (f.directory) {
+            edit_link.style = "display: none;";
+        } else {
+            edit_link.querySelector("button").disabled = true;
         }
 
         new_children.push(clone);
@@ -188,6 +209,26 @@ async function del(e) {
     }
 }
 
+async function rename(e) {
+    let fn = new URL(e.target.value);
+    var new_fn = prompt("Rename to ", fn.pathname.substr(3));
+    if (new_fn === null) {
+        return;
+    }
+    let new_uri = new URL("/fs" + new_fn, fn);
+    const response = await fetch(e.target.value,
+        {
+            method: "MOVE",
+            headers: {
+                'X-Destination': new_uri.pathname,
+            },
+        }
+    )
+    if (response.ok) {
+        refresh_list();
+    }
+}
+
 find_devices();
 
 let mkdir_button = document.getElementById("mkdir");

diff --git a/supervisor/shared/web_workflow/static/style.css b/supervisor/shared/web_workflow/static/style.css
@@ -17,3 +17,7 @@ body {
     margin: 0;
     font-size: 0.7em;
 }
+
+:disabled {
+    filter: saturate(0%);
+}
diff --git a/supervisor/shared/web_workflow/static/welcome.js b/supervisor/shared/web_workflow/static/welcome.js
@@ -1,7 +1,7 @@
 var url_base = window.location;
 var current_path;
 
-var mdns_works = window.location.hostname.endsWith(".local");
+var mdns_works = url_base.hostname.endsWith(".local");
 
 async function find_devices() {
     var version_response = await fetch("/cp/version.json");

diff --git a/supervisor/shared/web_workflow/web_workflow.c b/supervisor/shared/web_workflow/web_workflow.c
@@ -78,8 +78,9 @@ typedef struct {
     enum request_state state;
     char method[8];
     char path[256];
+    char destination[256];
     char header_key[64];
-    char header_value[64];
+    char header_value[256];
     // We store the origin so we can reply back with it.
     char origin[64];
     size_t content_length;
@@ -553,6 +554,15 @@ static void _reply_conflict(socketpool_socket_obj_t *socket, _request *request)
     _send_str(socket, "\r\nUSB storage active.");
 }
 
+
+static void _reply_precondition_failed(socketpool_socket_obj_t *socket, _request *request) {
+    _send_strs(socket,
+        "HTTP/1.1 412 Precondition Failed\r\n",
+        "Content-Length: 0\r\n", NULL);
+    _cors_header(socket, request);
+    _send_str(socket, "\r\n");
+}
+
 static void _reply_payload_too_large(socketpool_socket_obj_t *socket, _request *request) {
     _send_strs(socket,
         "HTTP/1.1 413 Payload Too Large\r\n",
@@ -986,6 +996,28 @@ static uint8_t _hex2nibble(char h) {
     return h - 'a' + 0xa;
 }
 
+// Decode percent encoding in place. Only do this once on a string!
+static void _decode_percents(char *str) {
+    size_t o = 0;
+    size_t i = 0;
+    size_t startlen = strlen(str);
+    while (i < startlen) {
+        if (str[i] == '%') {
+            str[o] = _hex2nibble(str[i + 1]) << 4 | _hex2nibble(str[i + 2]);
+            i += 3;
+        } else {
+            if (i != o) {
+                str[o] = str[i];
+            }
+            i += 1;
+        }
+        o += 1;
+    }
+    if (o < i) {
+        str[o] = '\0';
+    }
+}
+
 static bool _reply(socketpool_socket_obj_t *socket, _request *request) {
     if (request->redirect) {
         _reply_redirect(socket, request, request->path);
@@ -1006,23 +1038,8 @@ static bool _reply(socketpool_socket_obj_t *socket, _request *request) {
             // Decode any percent encoded bytes so that we're left with UTF-8.
             // We only do this on /fs/ paths and after redirect so that any
             // path echoing we do stays encoded.
-            size_t o = 0;
-            size_t i = 0;
-            while (i < strlen(request->path)) {
-                if (request->path[i] == '%') {
-                    request->path[o] = _hex2nibble(request->path[i + 1]) << 4 | _hex2nibble(request->path[i + 2]);
-                    i += 3;
-                } else {
-                    if (i != o) {
-                        request->path[o] = request->path[i];
-                    }
-                    i += 1;
-                }
-                o += 1;
-            }
-            if (o < i) {
-                request->path[o] = '\0';
-            }
+            _decode_percents(request->path);
+
             char *path = request->path + 3;
             size_t pathlen = strlen(path);
             FATFS *fs = filesystem_circuitpy();
@@ -1066,6 +1083,34 @@ static bool _reply(socketpool_socket_obj_t *socket, _request *request) {
                     _reply_no_content(socket, request);
                     return true;
                 }
+            } else if (strcasecmp(request->method, "MOVE") == 0) {
+                if (_usb_active()) {
+                    _reply_conflict(socket, request);
+                    return false;
+                }
+
+                _decode_percents(request->destination);
+                char *destination = request->destination + 3;
+                size_t destinationlen = strlen(destination);
+                if (destination[destinationlen - 1] == '/' && destinationlen > 1) {
+                    destination[destinationlen - 1] = '\0';
+                }
+
+                FRESULT result = f_rename(fs, path, destination);
+                #if CIRCUITPY_USB_MSC
+                usb_msc_unlock();
+                #endif
+                if (result == FR_EXIST) { // File exists and won't be overwritten.
+                    _reply_precondition_failed(socket, request);
+                } else if (result == FR_NO_PATH || result == FR_NO_FILE) { // Missing higher directories or target file.
+                    _reply_missing(socket, request);
+                } else if (result != FR_OK) {
+                    ESP_LOGE(TAG, "move error %d %s", result, path);
+                    _reply_server_error(socket, request);
+                } else {
+                    _reply_created(socket, request);
+                    return true;
+                }
             } else if (directory) {
                 if (strcasecmp(request->method, "GET") == 0) {
                     FF_DIR dir;
@@ -1318,6 +1363,8 @@ static void _process_request(socketpool_socket_obj_t *socket, _request *request)
                     } else if (strcasecmp(request->header_key, "Sec-WebSocket-Key") == 0 &&
                                strlen(request->header_value) == 24) {
                         strcpy(request->websocket_key, request->header_value);
+                    } else if (strcasecmp(request->header_key, "X-Destination") == 0) {
+                        strcpy(request->destination, request->header_value);
                     }
                     ESP_LOGI(TAG, "Header %s %s", request->header_key, request->header_value);
                 } else if (request->offset > sizeof(request->header_value) - 1) {