Revert "Stop publish examples to mongoose repo"

This reverts commit 1a17e17c462bdd4e1d26d8742f8b7087273e04c2. PUBLISHED_FROM=80028de308c9a021955d1425d2bfee8feb85f193
2026-10-02 06:22:52 +07:00 · 2017-02-06 14:08:59 +00:00
parent 7cc7df8c0e
commit eaef5bd133
351 changed files with 195424 additions and 0 deletions
@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2014 Cesanta Software Limited
+ * All rights reserved
+ */
+
+#include "db_plugin.h"
+#include "sqlite3.h"
+
+void *db_open(const char *db_path) {
+  sqlite3 *db = NULL;
+  if (sqlite3_open_v2(db_path, &db, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE |
+                                        SQLITE_OPEN_FULLMUTEX,
+                      NULL) == SQLITE_OK) {
+    sqlite3_exec(db, "CREATE TABLE IF NOT EXISTS kv(key PRIMARY KEY, val);", 0,
+                 0, 0);
+  }
+  return db;
+}
+
+void db_close(void **db_handle) {
+  if (db_handle != NULL && *db_handle != NULL) {
+    sqlite3_close(*db_handle);
+    *db_handle = NULL;
+  }
+}
+
+static void op_set(struct mg_connection *nc, const struct http_message *hm,
+                   const struct mg_str *key, void *db) {
+  sqlite3_stmt *stmt = NULL;
+  char value[200];
+  const struct mg_str *body =
+      hm->query_string.len > 0 ? &hm->query_string : &hm->body;
+
+  mg_get_http_var(body, "value", value, sizeof(value));
+  if (sqlite3_prepare_v2(db, "INSERT OR REPLACE INTO kv VALUES (?, ?);", -1,
+                         &stmt, NULL) == SQLITE_OK) {
+    sqlite3_bind_text(stmt, 1, key->p, key->len, SQLITE_STATIC);
+    sqlite3_bind_text(stmt, 2, value, strlen(value), SQLITE_STATIC);
+    sqlite3_step(stmt);
+    sqlite3_finalize(stmt);
+  }
+  mg_printf(nc, "%s", "HTTP/1.1 200 OK\r\nContent-Length: 0\r\n\r\n");
+}
+
+static void op_get(struct mg_connection *nc, const struct http_message *hm,
+                   const struct mg_str *key, void *db) {
+  sqlite3_stmt *stmt = NULL;
+  const char *data = NULL;
+  int result;
+  (void) hm;
+
+  if (sqlite3_prepare_v2(db, "SELECT val FROM kv WHERE key = ?;", -1, &stmt,
+                         NULL) == SQLITE_OK) {
+    sqlite3_bind_text(stmt, 1, key->p, key->len, SQLITE_STATIC);
+    result = sqlite3_step(stmt);
+    data = (char *) sqlite3_column_text(stmt, 0);
+    if ((result == SQLITE_OK || result == SQLITE_ROW) && data != NULL) {
+      mg_printf(nc,
+                "HTTP/1.1 200 OK\r\n"
+                "Content-Type: text/plain\r\n"
+                "Content-Length: %d\r\n\r\n%s",
+                (int) strlen(data), data);
+    } else {
+      mg_printf(nc, "%s",
+                "HTTP/1.1 404 Not Found\r\n"
+                "Content-Length: 0\r\n\r\n");
+    }
+    sqlite3_finalize(stmt);
+  } else {
+    mg_printf(nc, "%s",
+              "HTTP/1.1 500 Server Error\r\n"
+              "Content-Length: 0\r\n\r\n");
+  }
+}
+
+static void op_del(struct mg_connection *nc, const struct http_message *hm,
+                   const struct mg_str *key, void *db) {
+  sqlite3_stmt *stmt = NULL;
+  int result;
+  (void) hm;
+
+  if (sqlite3_prepare_v2(db, "DELETE FROM kv WHERE key = ?;", -1, &stmt,
+                         NULL) == SQLITE_OK) {
+    sqlite3_bind_text(stmt, 1, key->p, key->len, SQLITE_STATIC);
+    result = sqlite3_step(stmt);
+    if (result == SQLITE_OK || result == SQLITE_ROW) {
+      mg_printf(nc, "%s", "HTTP/1.1 200 OK\r\nContent-Length: 0\r\n\r\n");
+    } else {
+      mg_printf(nc, "%s",
+                "HTTP/1.1 404 Not Found\r\n"
+                "Content-Length: 0\r\n\r\n");
+    }
+    sqlite3_finalize(stmt);
+  } else {
+    mg_printf(nc, "%s",
+              "HTTP/1.1 500 Server Error\r\n"
+              "Content-Length: 0\r\n\r\n");
+  }
+}
+
+void db_op(struct mg_connection *nc, const struct http_message *hm,
+           const struct mg_str *key, void *db, int op) {
+  switch (op) {
+    case API_OP_GET:
+      op_get(nc, hm, key, db);
+      break;
+    case API_OP_SET:
+      op_set(nc, hm, key, db);
+      break;
+    case API_OP_DEL:
+      op_del(nc, hm, key, db);
+      break;
+    default:
+      mg_printf(nc, "%s",
+                "HTTP/1.0 501 Not Implemented\r\n"
+                "Content-Length: 0\r\n\r\n");
+      break;
+  }
+}