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This commit is contained in:
Benjamin Wilson 2025-01-09 01:39:45 -05:00
parent b5d1e366c6
commit 542b2fb7f6
1 changed files with 85 additions and 0 deletions
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85
main/http_server/http_server.c
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@ -118,6 +118,91 @@ static esp_err_t set_content_type_from_file(httpd_req_t * req, const char * file
static esp_err_t set_cors_headers(httpd_req_t * req)
{
// int sockfd = httpd_req_to_sockfd(req);
// char ipstr[INET6_ADDRSTRLEN];
// struct sockaddr_in6 addr; // esp_http_server uses IPv6 addressing
// socklen_t addr_size = sizeof(addr);
// if (getpeername(sockfd, (struct sockaddr *)&addr, &addr_size) < 0) {
// ESP_LOGE(TAG, "Error getting client IP");
// return ESP_FAIL;
// }
// // // Convert to IPv6 string
// // inet_ntop(AF_INET, &addr.sin6_addr, ipstr, sizeof(ipstr));
// // ESP_LOGI(TAG, "Client IP => %s", ipstr);
// // Convert to IPv4 string
// inet_ntop(AF_INET, &addr.sin6_addr.un.u32_addr[3], ipstr, sizeof(ipstr));
// ESP_LOGI(TAG, "Client IP => %s", ipstr);
char origin[128];
char ip_str[16]; // Buffer to hold the extracted IP address string
uint32_t ip_addr = 0;
// Attempt to get the Origin header
if (httpd_req_get_hdr_value_str(req, "Origin", origin, sizeof(origin)) == ESP_OK) {
ESP_LOGI("CORS", "Origin header: %s", origin);
// Find the start of the IP address in the Origin header
const char *prefix = "http://";
char *ip_start = strstr(origin, prefix);
if (ip_start) {
ip_start += strlen(prefix); // Move past "http://"
// Extract the IP address portion (up to the next '/')
char *ip_end = strchr(ip_start, '/');
size_t ip_len = ip_end ? (size_t)(ip_end - ip_start) : strlen(ip_start);
if (ip_len < sizeof(ip_str)) {
strncpy(ip_str, ip_start, ip_len);
ip_str[ip_len] = '\0'; // Null-terminate the string
// Convert the IP address string to uint32_t
ip_addr = inet_addr(ip_str);
if (ip_addr == INADDR_NONE) {
ESP_LOGW("CORS", "Invalid IP address: %s", ip_str);
} else {
ESP_LOGI("CORS", "Extracted IP address");
}
} else {
ESP_LOGW("CORS", "IP address string is too long");
}
}
}
esp_netif_t *netif = esp_netif_get_handle_from_ifkey("WIFI_STA_DEF"); // Use appropriate interface key
if (netif == NULL) {
ESP_LOGE(TAG, "Failed to get network interface");
return ESP_FAIL;
}
esp_netif_ip_info_t ip_info;
if (esp_netif_get_ip_info(netif, &ip_info) == ESP_OK) {
ESP_LOGI(TAG, "IP Address: " IPSTR, IP2STR(&ip_info.ip));
ESP_LOGI(TAG, "Netmask: " IPSTR, IP2STR(&ip_info.netmask));
ESP_LOGI(TAG, "Gateway: " IPSTR, IP2STR(&ip_info.gw));
} else {
ESP_LOGE(TAG, "Failed to get IP address");
}
// Calculate network addresses for client and server
uint32_t server_network = ip_info.ip.addr & ip_info.netmask.addr;
uint32_t client_network = ip_addr & ip_info.netmask.addr;
//Check if client is in the same network as the server
if (server_network == client_network) {
ESP_LOGI(TAG, "Client is in the same network as the server.");
} else {
ESP_LOGI(TAG, "Client is NOT in the same network as the server.");
}
esp_err_t err;
err = httpd_resp_set_hdr(req, "Access-Control-Allow-Origin", "*");