fix(esp_http_client): Revert Deprecated Tag on Previously Marked Private API

This commit removes depcriacted tag marked on priavte APIs'
http_utils_get_string_between() and http_utils_get_string_after().
As these are not publick API, necessary changes been applied on these
APIs' directly withput adding new similar one and marking them as depricated.

Author: nileshkale123

components/esp_http_client/esp_http_client.c

@@ -1861,20 +1861,20 @@ esp_err_t esp_http_client_add_auth(esp_http_client_handle_t client)
         client->auth_data->method = strdup(HTTP_METHOD_MAPPING[client->connection_info.method]);
 
         client->auth_data->nc = 1;
-        HTTP_RET_ON_ERR_DBG(http_utils_get_substring_between(auth_header, "realm=\"", "\"", &client->auth_data->realm), TAG, "Unable to extract substring between specified strings");
-        HTTP_RET_ON_ERR_DBG(http_utils_get_substring_between(auth_header, "algorithm=", ",", &client->auth_data->algorithm), TAG, "Unable to extract substring between specified strings");
+        HTTP_RET_ON_ERR_DBG(http_utils_get_string_between(auth_header, "realm=\"", "\"", &client->auth_data->realm), TAG, "Unable to extract substring between specified strings");
+        HTTP_RET_ON_ERR_DBG(http_utils_get_string_between(auth_header, "algorithm=", ",", &client->auth_data->algorithm), TAG, "Unable to extract substring between specified strings");
 
         if (client->auth_data->algorithm == NULL) {
-            HTTP_RET_ON_ERR_DBG(http_utils_get_substring_after(auth_header, "algorithm=", &client->auth_data->algorithm), TAG, "Unable to extract substring after specified string");
+            HTTP_RET_ON_ERR_DBG(http_utils_get_string_after(auth_header, "algorithm=", &client->auth_data->algorithm), TAG, "Unable to extract substring after specified string");
         }
 
         if (client->auth_data->algorithm == NULL) {
             client->auth_data->algorithm = strdup("MD5");
         }
 
-        HTTP_RET_ON_ERR_DBG(http_utils_get_substring_between(auth_header, "qop=\"", "\"", &client->auth_data->qop), TAG, "Unable to extract substring between specified strings");
-        HTTP_RET_ON_ERR_DBG(http_utils_get_substring_between(auth_header, "nonce=\"", "\"", &client->auth_data->nonce), TAG, "Unable to extract substring between specified strings");
-        HTTP_RET_ON_ERR_DBG(http_utils_get_substring_between(auth_header, "opaque=\"", "\"", &client->auth_data->opaque), TAG, "Unable to extract substring between specified strings");
+        HTTP_RET_ON_ERR_DBG(http_utils_get_string_between(auth_header, "qop=\"", "\"", &client->auth_data->qop), TAG, "Unable to extract substring between specified strings");
+        HTTP_RET_ON_ERR_DBG(http_utils_get_string_between(auth_header, "nonce=\"", "\"", &client->auth_data->nonce), TAG, "Unable to extract substring between specified strings");
+        HTTP_RET_ON_ERR_DBG(http_utils_get_string_between(auth_header, "opaque=\"", "\"", &client->auth_data->opaque), TAG, "Unable to extract substring between specified strings");
         client->process_again = 1;
 
         return ESP_OK;

components/esp_http_client/lib/http_utils.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2015-2025 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -110,41 +110,7 @@ void http_utils_trim_whitespace(char **str)
     memmove(*str, start, strlen(start) + 1);
 }
 
-char *http_utils_get_string_between(const char *str, const char *begin, const char *end)
-{
-    char *found = strcasestr(str, begin);
-    char *ret = NULL;
-    if (found) {
-        found += strlen(begin);
-        char *found_end = strcasestr(found, end);
-        if (found_end) {
-            ret = calloc(1, found_end - found + 1);
-            mem_check(ret);
-            memcpy(ret, found, found_end - found);
-            return ret;
-        }
-    }
-    return NULL;
-}
-
-char *http_utils_get_string_after(const char *str, const char *begin)
-{
-    char *found = strcasestr(str, begin);
-    char *ret = NULL;
-    if (found) {
-        found += strlen(begin);
-        char *found_end = (char *)str + strlen(str);
-        if (found_end) {
-            ret = calloc(1, found_end - found + 1);
-            mem_check(ret);
-            memcpy(ret, found, found_end - found);
-            return ret;
-        }
-    }
-    return NULL;
-}
-
-esp_err_t http_utils_get_substring_between(const char *str, const char *begin, const char *end, char **out)
+esp_err_t http_utils_get_string_between(const char *str, const char *begin, const char *end, char **out)
 {
     *out = NULL;
     char *found = strcasestr(str, begin);
@@ -160,7 +126,7 @@ esp_err_t http_utils_get_substring_between(const char *str, const char *begin, c
     return ESP_OK;
 }
 
-esp_err_t http_utils_get_substring_after(const char *str, const char *begin, char **out)
+esp_err_t http_utils_get_string_after(const char *str, const char *begin, char **out)
 {
     *out = NULL;
     char *found = strcasestr(str, begin);

components/esp_http_client/lib/include/http_utils.h

@@ -80,29 +80,6 @@ char *http_utils_append_string(char **str, const char *new_str, int len);
  */
 void http_utils_trim_whitespace(char **str);
 
-/**
- * @brief      Gets the string between 2 string.
- *             It will allocate a new memory space for this string, so you need to free it when no longer use
- *
- * @param[in]  str    The source string
- * @param[in]  begin  The begin string
- * @param[in]  end    The end string
- *
- * @return     The string between begin and end
- */
-char *http_utils_get_string_between(const char *str, const char *begin, const char *end) __attribute__((deprecated("Use http_utils_get_substring_between instead.")));;
-
-/**
- * @brief      Returns a string that contains the part after the search string till the end of the source string.
- *             It will allocate a new memory space for this string, so you need to free it when no longer used
- *
- * @param[in]  str    The source string
- * @param[in]  begin  The search string
- *
- * @return     The string between begin and the end of str
- */
-char *http_utils_get_string_after(const char *str, const char *begin) __attribute__((deprecated("Use http_utils_get_substring_after instead.")));;
-
 /**
  * @brief      Extracts the substring between two specified delimiters.
  *             Allocates memory for the extracted substring and stores it in `out`.
@@ -117,7 +94,7 @@ char *http_utils_get_string_after(const char *str, const char *begin) __attribut
  * - ESP_OK: Operation succeeded (even if no substring is found).
  * - ESP_ERR_NO_MEM: Memory allocation failed.
  */
-esp_err_t http_utils_get_substring_between(const char *str, const char *begin, const char *end, char **out);
+esp_err_t http_utils_get_string_between(const char *str, const char *begin, const char *end, char **out);
 
 /**
  * @brief      Extracts the substring starting after a specified delimiter until the end of the source string.
@@ -132,7 +109,7 @@ esp_err_t http_utils_get_substring_between(const char *str, const char *begin, c
  * - ESP_OK: Operation succeeded (even if no substring is found).
  * - ESP_ERR_NO_MEM: Memory allocation failed.
  */
-esp_err_t http_utils_get_substring_after(const char *str, const char *begin, char **out);
+esp_err_t http_utils_get_string_after(const char *str, const char *begin, char **out);
 
 /**
  * @brief      Join 2 strings to one