[http_request] Add enum for status codes (#7690)

esphome/components/http_request/http_request.h

@@ -22,6 +22,63 @@ struct Header {
   const char *value;
 };
 
+// Some common HTTP status codes
+enum HttpStatus {
+  HTTP_STATUS_OK = 200,
+  HTTP_STATUS_NO_CONTENT = 204,
+  HTTP_STATUS_PARTIAL_CONTENT = 206,
+
+  /* 3xx - Redirection */
+  HTTP_STATUS_MULTIPLE_CHOICES = 300,
+  HTTP_STATUS_MOVED_PERMANENTLY = 301,
+  HTTP_STATUS_FOUND = 302,
+  HTTP_STATUS_SEE_OTHER = 303,
+  HTTP_STATUS_NOT_MODIFIED = 304,
+  HTTP_STATUS_TEMPORARY_REDIRECT = 307,
+  HTTP_STATUS_PERMANENT_REDIRECT = 308,
+
+  /* 4XX - CLIENT ERROR */
+  HTTP_STATUS_BAD_REQUEST = 400,
+  HTTP_STATUS_UNAUTHORIZED = 401,
+  HTTP_STATUS_FORBIDDEN = 403,
+  HTTP_STATUS_NOT_FOUND = 404,
+  HTTP_STATUS_METHOD_NOT_ALLOWED = 405,
+  HTTP_STATUS_NOT_ACCEPTABLE = 406,
+  HTTP_STATUS_LENGTH_REQUIRED = 411,
+
+  /* 5xx - Server Error */
+  HTTP_STATUS_INTERNAL_ERROR = 500
+};
+
+/**
+ * @brief Returns true if the HTTP status code is a redirect.
+ *
+ * @param status the HTTP status code to check
+ * @return true if the status code is a redirect, false otherwise
+ */
+inline bool is_redirect(int const status) {
+  switch (status) {
+    case HTTP_STATUS_MOVED_PERMANENTLY:
+    case HTTP_STATUS_FOUND:
+    case HTTP_STATUS_SEE_OTHER:
+    case HTTP_STATUS_TEMPORARY_REDIRECT:
+    case HTTP_STATUS_PERMANENT_REDIRECT:
+      return true;
+    default:
+      return false;
+  }
+}
+
+/**
+ * @brief Checks if the given HTTP status code indicates a successful request.
+ *
+ * A successful request is one where the status code is in the range 200-299
+ *
+ * @param status the HTTP status code to check
+ * @return true if the status code indicates a successful request, false otherwise
+ */
+inline bool is_success(int const status) { return status >= HTTP_STATUS_OK && status < HTTP_STATUS_MULTIPLE_CHOICES; }
+
 class HttpRequestComponent;
 
 class HttpContainer : public Parented<HttpRequestComponent> {

esphome/components/http_request/http_request_arduino.cpp

@@ -113,7 +113,7 @@ std::shared_ptr<HttpContainer> HttpRequestArduino::start(std::string url, std::s
     return nullptr;
   }
 
-  if (container->status_code < 200 || container->status_code >= 300) {
+  if (!is_success(container->status_code)) {
     ESP_LOGE(TAG, "HTTP Request failed; URL: %s; Code: %d", url.c_str(), container->status_code);
     this->status_momentary_error("failed", 1000);
     // Still return the container, so it can be used to get the status code and error message

esphome/components/http_request/http_request_idf.cpp

@@ -6,7 +6,6 @@
 #include "esphome/components/watchdog/watchdog.h"
 
 #include "esphome/core/application.h"
-#include "esphome/core/defines.h"
 #include "esphome/core/log.h"
 
 #if CONFIG_MBEDTLS_CERTIFICATE_BUNDLE
@@ -118,20 +117,14 @@ std::shared_ptr<HttpContainer> HttpRequestIDF::start(std::string url, std::strin
     return nullptr;
   }
 
-  auto is_ok = [](int code) { return code >= HttpStatus_Ok && code < HttpStatus_MultipleChoices; };
-
   container->content_length = esp_http_client_fetch_headers(client);
   container->status_code = esp_http_client_get_status_code(client);
-  if (is_ok(container->status_code)) {
+  if (is_success(container->status_code)) {
     container->duration_ms = millis() - start;
     return container;
   }
 
   if (this->follow_redirects_) {
-    auto is_redirect = [](int code) {
-      return code == HttpStatus_MovedPermanently || code == HttpStatus_Found || code == HttpStatus_SeeOther ||
-             code == HttpStatus_TemporaryRedirect || code == HttpStatus_PermanentRedirect;
-    };
     auto num_redirects = this->redirect_limit_;
     while (is_redirect(container->status_code) && num_redirects > 0) {
       err = esp_http_client_set_redirection(client);
@@ -142,9 +135,9 @@ std::shared_ptr<HttpContainer> HttpRequestIDF::start(std::string url, std::strin
         return nullptr;
       }
 #if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE
-      char url[256]{};
+      char redirect_url[256]{};
-      if (esp_http_client_get_url(client, url, sizeof(url) - 1) == ESP_OK) {
+      if (esp_http_client_get_url(client, redirect_url, sizeof(redirect_url) - 1) == ESP_OK) {
-        ESP_LOGV(TAG, "redirecting to url: %s", url);
+        ESP_LOGV(TAG, "redirecting to url: %s", redirect_url);
       }
 #endif
       err = esp_http_client_open(client, 0);
@@ -157,7 +150,7 @@ std::shared_ptr<HttpContainer> HttpRequestIDF::start(std::string url, std::strin
 
       container->content_length = esp_http_client_fetch_headers(client);
       container->status_code = esp_http_client_get_status_code(client);
-      if (is_ok(container->status_code)) {
+      if (is_success(container->status_code)) {
         container->duration_ms = millis() - start;
         return container;
       }

esphome/components/http_request/ota/ota_http_request.cpp

@@ -106,7 +106,7 @@ uint8_t OtaHttpRequestComponent::do_ota_() {
 
   auto container = this->parent_->get(url_with_auth);
 
-  if (container == nullptr || container->status_code != 200) {
+  if (container == nullptr || container->status_code != HTTP_STATUS_OK) {
     return OTA_CONNECTION_ERROR;
   }
 

esphome/components/http_request/update/http_request_update.cpp

@@ -31,7 +31,7 @@ void HttpRequestUpdate::setup() {
 void HttpRequestUpdate::update() {
   auto container = this->request_parent_->get(this->source_url_);
 
-  if (container == nullptr || container->status_code != 200) {
+  if (container == nullptr || container->status_code != HTTP_STATUS_OK) {
     std::string msg = str_sprintf("Failed to fetch manifest from %s", this->source_url_.c_str());
     this->status_set_error(msg.c_str());
     return;