Trim app and recovery binaries

components/metrics/Batch.cpp

@@ -0,0 +1,124 @@
+#define LOG_LOCAL_LEVEL ESP_LOG_VERBOSE
+#include "Batch.h"
+#include "esp_event.h"
+#include "esp_http_client.h"
+#include "esp_log.h"
+#include "esp_netif.h"
+#include "esp_ota_ops.h"
+#include "esp_tls.h"
+#include "nvs_flash.h"
+#if CONFIG_MBEDTLS_CERTIFICATE_BUNDLE
+#include "esp_crt_bundle.h"
+#endif
+#include "esp_system.h"
+#include "http_handlers.h"
+#include "nvs.h"
+#include "nvs_flash.h"
+#include "nvs_utilities.h"
+#include "tools.h"
+#include <algorithm>
+#include <iomanip>
+#include <sstream>
+#include <string>
+#include <sys/param.h>
+#if CONFIG_WITH_METRICS
+static const char* const TAG = "MetricsBatch";
+static const char* const feature_evt_name = "$feature_flag_called";
+static const char* const feature_flag_name = "$feature_flag";
+static const char* const feature_flag_response_name = "$feature_flag_response";
+
+namespace Metrics {
+
+Event& Batch::add_feature_event() { return add_event(feature_evt_name); }
+void Batch::add_remove_feature_event(const char* name, bool active) {
+    if (!active) {
+        remove_feature_event(name);
+    } else {
+        add_event(feature_evt_name).add_property(feature_flag_name, name);
+    }
+}
+Event& Batch::add_feature_variant_event(const char* const name, const char* const value) {
+    return add_event(feature_evt_name)
+        .add_property(feature_flag_name, name)
+        .add_property(feature_flag_response_name, value);
+}
+void Batch::remove_feature_event(const char* name) {
+    for (Metrics::Event& e : _events) {
+        if (strcmp(e.get_name(), feature_evt_name) == 0) {
+            e.remove_property(feature_flag_name, name);
+            return;
+        }
+    }
+}
+cJSON* Batch::to_json() {
+    cJSON* batch_json = cJSON_CreateArray();
+    for (Metrics::Event& e : _events) {
+        cJSON_AddItemToArray(batch_json, e.to_json(_metrics_uid.c_str()));
+    }
+    cJSON* message = cJSON_CreateObject();
+    cJSON_AddItemToObject(message, "batch", batch_json);
+    cJSON_AddStringToObject(message, "api_key", _api_key);
+    return batch_json;
+}
+char* Batch::to_json_str() {
+    cJSON* json = to_json();
+    char* json_str = cJSON_PrintUnformatted(json);
+    cJSON_Delete(json);
+    return json_str;
+}
+
+void Batch::push() {
+    int status_code = 0;
+    if (_metrics_uid.empty() && !_warned) {
+        ESP_LOGW(TAG, "Metrics disabled; no CID found");
+        _warned = true;
+        return;
+    }
+
+    char* json_str = to_json_str();
+    ESP_LOGV(TAG, "Metrics payload: %s", json_str);
+    time_t start_time = millis();
+
+    status_code = metrics_http_post_request(json_str, _url);
+
+    if (status_code == 200 || status_code == 204) {
+        _events.clear();
+    }
+    FREE_AND_NULL(json_str)
+    ESP_LOGD(TAG, "Total duration for metrics call: %lu. ", millis() - start_time);
+}
+
+void Batch::build_guid() {
+    uint8_t raw[16];
+    std::ostringstream oss;
+    esp_fill_random(raw, 16);
+    std::for_each(std::begin(raw), std::end(raw), [&oss](const uint8_t& byte) {
+        oss << std::hex << std::setw(2) << std::setfill('0') << static_cast<int>(byte);
+    });
+    _metrics_uid = oss.str();
+}
+void Batch::assign_id() {
+    size_t size = 0;
+    esp_err_t esp_err = ESP_OK;
+    _metrics_uid = std::string((char*)get_nvs_value_alloc_for_partition(
+        NVS_DEFAULT_PART_NAME, TAG, NVS_TYPE_BLOB, "cid", &size));
+    if (_metrics_uid[0] == 'G') {
+        ESP_LOGW(TAG, "Invalid ID. %s", _metrics_uid.c_str());
+        _metrics_uid.clear();
+    }
+    if (_metrics_uid.empty()) {
+        build_guid();
+        if (_metrics_uid.empty()) {
+            ESP_LOGE(TAG, "ID Failed");
+            return;
+        }
+        ESP_LOGW(TAG, "Metrics ID: %s", _metrics_uid.c_str());
+        esp_err = store_nvs_value_len_for_partition(NVS_DEFAULT_PART_NAME, TAG, NVS_TYPE_BLOB,
+            "cid", _metrics_uid.c_str(), _metrics_uid.length() + 1);
+        if (esp_err != ESP_OK) {
+            ESP_LOGE(TAG, "Store ID failed: %s", esp_err_to_name(esp_err));
+        }
+    }
+}
+} // namespace Metrics
+#endif