Refactoring of toastyfs_web

2025-12-03 00:03:36 +01:00
parent 09ec872591
commit b0b2d576cc
18 changed files with 726 additions and 437 deletions
@@ -0,0 +1,124 @@
+#include "proxy.h"
+#include "proxy_get.h"
+#include "proxy_put.h"
+#include "proxy_delete.h"
+
+void proxy_init(ProxyState *state, ToastyFS *backend)
+{
+    state->backend = backend;
+    state->num_operations = 0;
+    for (int i = 0; i < PROXY_CAPACITY; i++)
+        state->operations[i].type = PO_FREE;
+}
+
+void proxy_free(ProxyState *state)
+{
+    for (int i = 0; i < PROXY_CAPACITY; i++) {
+        ProxyOperation *operation = &state->operations[i];
+        if (operation->type != PO_FREE) {
+            http_response_builder_status(operation->builder, 500);
+            http_response_builder_send(operation->builder);
+        }
+    }
+}
+
+static ProxyOperation *find_unused_operation(ProxyState *state)
+{
+    if (state->num_operations == PROXY_CAPACITY)
+        return NULL;
+
+    ProxyOperation *operation = state->operations;
+    while (operation->type != PO_FREE)
+        operation++;
+
+    return operation;
+}
+
+void proxy_process_request(ProxyState *state,
+    HTTP_Request *request, HTTP_ResponseBuilder builder)
+{
+    ProxyOperation *operation = find_unused_operation(state);
+
+    bool created = false;
+    switch (request->method) {
+    case HTTP_METHOD_GET:
+        if (operation == NULL) {
+            http_response_builder_status(builder, 503); // Service Unavailable
+            http_response_builder_send(builder);
+        } else {
+            created = process_request_get(state, operation, request, builder);
+        }
+        break;
+    case HTTP_METHOD_HEAD:
+        if (operation == NULL) {
+            http_response_builder_status(builder, 503); // Service Unavailable
+            http_response_builder_send(builder);
+        } else {
+            created = process_request_head(state, operation, request, builder);
+        }
+        break;
+    case HTTP_METHOD_PUT:
+        if (operation == NULL) {
+            http_response_builder_status(builder, 503); // Service Unavailable
+            http_response_builder_send(builder);
+        } else {
+            created = process_request_put(state, operation, request, builder);
+        }
+        break;
+    case HTTP_METHOD_DELETE:
+        if (operation == NULL) {
+            http_response_builder_status(builder, 503); // Service Unavailable
+            http_response_builder_send(builder);
+        } else {
+            created = process_request_delete(state, operation, request, builder);
+        }
+        break;
+    case HTTP_METHOD_OPTIONS:
+        http_response_builder_status(builder, 200); // OK
+        http_response_builder_header(builder,
+            HTTP_STR("Allow: GET, HEAD, PUT, DELETE, OPTIONS"));
+        http_response_builder_send(builder);
+        break;
+    default:
+        http_response_builder_status(builder, 405); // Method not allowed
+        http_response_builder_header(builder,
+            HTTP_STR("Allow: GET, HEAD, PUT, DELETE, OPTIONS"));
+        http_response_builder_send(builder);
+        break;
+    }
+    if (created) {
+        state->num_operations++;
+    }
+}
+
+void proxy_process_completion(ProxyState *state,
+    ToastyResult completion)
+{
+    bool completed;
+    ProxyOperation *operation = completion.user;
+    switch (operation->type) {
+    case PO_CREATE_DIR:
+        completed = process_completion_create_dir(state, operation, completion);
+        break;
+    case PO_CREATE_FILE:
+        completed = process_completion_create_file(state, operation, completion);
+        break;
+    case PO_DELETE:
+        completed = process_completion_delete(state, operation, completion);
+        break;
+    case PO_READ_DIR:
+        completed = process_completion_read_dir(state, operation, completion);
+        break;
+    case PO_READ_FILE:
+        completed = process_completion_read_file(state, operation, completion);
+        break;
+    case PO_WRITE:
+        completed = process_completion_write(state, operation, completion);
+        break;
+    default:
+    }
+    if (completed) {
+        operation->type = PO_FREE;
+        state->num_operations--;
+    }
+}