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main.c
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main.c
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// -lws2_32 -lpthread -I../sqlite -L../sqlite -lsqlite3 tmd5/tmd5.c cJSON/cJSON.c
// -I../mbedtls/include
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <stddef.h>
#include <string.h>
#include <pthread.h>
#include <stdbool.h>
#include <time.h>
#include <sqlite3.h>
#include "tmd5/tmd5.h"
#include "cJSON/cJSON.h"
#include "http2.h"
#include "lite-list.h"
#include "rapidstring.h"
#include "shared.h"
#if defined(_WIN32)
# include <conio.h>
#endif
#define API_KEY "70c363ebfaccfe32"
#define API_SECRET "b9JyuLR8WNuU6Jc0XnAHx0B7i83Hdduc"
#define ERR_TCP_WRITE_TIMEOUT 11;
#define ERR_TCP_WRITE_FAIL 12
#define RET_SUCCESS 0
#define ERR_TCP_READ_TIMEOUT 13
#define ERR_TCP_PEER_SHUTDOWN 14
#define ERR_TCP_READ_FAIL 15
#define ERR_TCP_NOTHING_TO_READ 16
// http://openapi.youdao.com/api?q=word&salt=1577810414&sign=9164952137F0281F2ADF734A8835900C&from=EN&appKey=1f5687b5a6b94361&to=zh-CHS
#define DEFAULT_HOST "openapi.youdao.com"
#ifdef USE_HTTPS
# define DEFAULT_PORT 403
#else
# define DEFAULT_PORT 80
#endif
#define DBNAME "youdao.db"
#define SQL_CREATE_TABLE "CREATE TABLE IF NOT EXISTS \"dic\" ( \"key\" varchar , \"word\" varchar, \"learned\" INTEGER)"
#define SQL_CREATE_INDEX "CREATE UNIQUE INDEX IF NOT EXISTS `key_UNIQUE` ON `dic` (`key` ASC)"
#define SQL_QUERY "SELECT key FROM dic WHERE key = ?"
#define SQL_INSERT "INSERT INTO dic VALUES(?,?,0)"
#ifndef container_of
# define container_of(ptr, type, member) \
((type*)((char*)(ptr)-offsetof(type, member)))
#endif
static sqlite3_stmt* s_insert;
static sqlite3_stmt* s_query;
static sqlite3* db;
typedef struct word {
char* buf;
list_head_t list;
} word_t;
static const char HEX_ARRAY[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'A', 'B', 'C', 'D', 'E', 'F'
};
int contains(list_head_t* list, const char* s) {
word_t* pos;
list_for_each_entry(pos, list, list, word_t) {
if (strcmp(pos->buf, s) == 0)
return 1;
}
return 0;
}
list_head_t* collect() {
// 初始化列表
static LIST_HEAD(word_list);
INIT_LIST_HEAD(&word_list);
// 加载文本文件
FILE* txt = fopen("./words/23.txt", "r");
if (!txt) {
return 0;
}
// 单词最大长度
size_t len = 30, i = 0;
// 字符
int c;
// 单词
char buf[len];
memset(buf, 0, len);
while ((c = fgetc(txt)) != EOF) {
if (isalpha(c) && i < len) {
// 连续英文字符转化为小写后
// 写入相应的内存块
buf[i++] = isupper(c) ? tolower(c) : c;
} else if (buf[0] == 0) {
// 如果单词为空或长度小于2
// 继续下一个循环
continue;
} else if (strlen(buf) == 1) {
i = 0;
buf[0] = 0;
continue;
} else {
// 如果列表中不包括单词
if (!contains(&word_list, buf)) {
word_t* word = malloc(sizeof(word_t));
word->buf = strdup(buf);
list_add_tail(&word->list, &word_list);
}
// 重设长度标记
// 清空单词内存块
i = 0;
memset(buf, 0, len);
}
}
fclose(txt);
return &word_list;
}
sqlite3* database() {
sqlite3* db = { 0 };
int rc = sqlite3_open_v2(DBNAME, &db, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, 0);
if (rc != SQLITE_OK) {
printf("sqlite3_open_v2() failed.");
return NULL;
}
return db;
}
int table(sqlite3* db) {
char* error;
int rc = sqlite3_exec(db, SQL_CREATE_TABLE, 0, 0, &error);
if (rc != SQLITE_OK) {
printf("sqlite3_exec() failed. %s\n", error);
return rc;
}
rc = sqlite3_exec(db, SQL_CREATE_INDEX, 0, 0, &error);
if (rc != SQLITE_OK) {
printf("sqlite3_exec() failed. %s\n", error);
return rc;
}
return rc;
}
char* url(const char* word, char* buf_path, size_t buf_path_len) {
const char* from = "EN";
const char* to = "zh-CHS";
memset(buf_path, 0, buf_path_len);
int salt = time(NULL);
snprintf(buf_path, buf_path_len, "%s%s%d%s", API_KEY, word, salt, API_SECRET);
char md5_buf[33];
MD5_CTX md5_ctx;
MD5Init(&md5_ctx);
MD5Update(&md5_ctx, buf_path, strlen(buf_path));
MD5Final(&md5_ctx);
for (int i = 0, j = 0; i < 16; i++) {
uint8_t t = md5_ctx.digest[i];
md5_buf[j++] = HEX_ARRAY[t / 16];
md5_buf[j++] = HEX_ARRAY[t % 16];
}
md5_buf[32] = 0;
memset(buf_path, 0, buf_path_len);
snprintf(buf_path, buf_path_len, "/api?q=%s&salt=%d&sign=%s&from=%s&appKey=%s&to=%s",
word, salt, md5_buf, from, API_KEY, to);
return buf_path;
}
rapidstring* header(rapidstring* s, const char* word) {
size_t buf_path_len = MAX_PATH << 1;
char buf_path[buf_path_len];
url(word, buf_path, buf_path_len);
rs_cat(s, "GET ");
rs_cat(s, buf_path);
rs_cat(s, " HTTP/1.1\r\n");
rs_cat(s, "Host: openapi.youdao.com\r\n");
rs_cat(s, "\r\n");
return s;
}
uintptr_t connect_socket(const char* host, uint16_t port) {
int ret;
struct addrinfo hints, *addr_list, *cur;
int fd = 0;
char port_str[6];
snprintf(port_str, 6, "%d", port);
memset(&hints, 0x00, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
ret = getaddrinfo(host, port_str, &hints, &addr_list);
if (ret) {
return 0;
}
for (cur = addr_list; cur != NULL; cur = cur->ai_next) {
fd = (int)socket(cur->ai_family, cur->ai_socktype, cur->ai_protocol);
if (fd < 0) {
ret = 0;
continue;
}
if (connect(fd, cur->ai_addr, cur->ai_addrlen) == 0) {
ret = fd;
break;
}
CLOSESOCKET(fd);
ret = 0;
}
freeaddrinfo(addr_list);
return (uintptr_t)ret;
}
int write(uintptr_t fd, const unsigned char* buf, uint32_t len, uint32_t timeout_ms, size_t* written_len) {
int ret;
uint32_t len_sent;
uint64_t t_end, t_left;
fd_set sets;
t_end = _linux_get_time_ms() + timeout_ms;
len_sent = 0;
ret = 1; /* send one time if timeout_ms is value 0 */
do {
t_left = _linux_time_left(t_end, _linux_get_time_ms());
if (0 != t_left) {
struct timeval timeout;
FD_ZERO(&sets);
FD_SET(fd, &sets);
timeout.tv_sec = t_left / 1000;
timeout.tv_usec = (t_left % 1000) * 1000;
ret = select(fd + 1, NULL, &sets, NULL, &timeout);
if (ret > 0) {
if (0 == FD_ISSET(fd, &sets)) {
/* If timeout in next loop, it will not sent any data */
ret = 0;
continue;
}
} else if (0 == ret) {
ret = ERR_TCP_WRITE_TIMEOUT;
break;
} else {
if (EINTR == errno) {
continue;
}
ret = ERR_TCP_WRITE_FAIL;
break;
}
} else {
ret = ERR_TCP_WRITE_TIMEOUT;
}
if (ret > 0) {
ret = send(fd, buf + len_sent, len - len_sent, 0);
if (ret > 0) {
len_sent += ret;
} else if (0 == ret) {
} else {
if (EINTR == errno) {
continue;
}
ret = ERR_TCP_WRITE_FAIL;
break;
}
}
} while ((len_sent < len) && (_linux_time_left(t_end, _linux_get_time_ms()) > 0));
*written_len = (size_t)len_sent;
return len_sent > 0 ? RET_SUCCESS : ret;
}
int read(uintptr_t fd, unsigned char* buf, uint32_t len, uint32_t timeout_ms, size_t* read_len) {
int ret, err_code;
uint32_t len_recv;
uint64_t t_end, t_left;
fd_set sets;
struct timeval timeout;
t_end = _linux_get_time_ms() + timeout_ms;
len_recv = 0;
err_code = 0;
do {
t_left = _linux_time_left(t_end, _linux_get_time_ms());
if (0 == t_left) {
err_code = ERR_TCP_READ_TIMEOUT;
break;
}
FD_ZERO(&sets);
FD_SET(fd, &sets);
timeout.tv_sec = t_left / 1000;
timeout.tv_usec = (t_left % 1000) * 1000;
ret = select(fd + 1, &sets, NULL, NULL, &timeout);
if (ret > 0) {
ret = recv(fd, buf + len_recv, len - len_recv, 0);
if (ret > 0) {
len_recv += ret;
} else if (0 == ret) {
struct sockaddr_in peer;
socklen_t sLen = sizeof(peer);
int peer_port = 0;
getpeername(fd, (struct sockaddr*)&peer, &sLen);
peer_port = ntohs(peer.sin_port);
err_code = ERR_TCP_PEER_SHUTDOWN;
break;
} else {
if (EINTR == errno) {
continue;
}
err_code = ERR_TCP_READ_FAIL;
break;
}
} else if (0 == ret) {
err_code = ERR_TCP_READ_TIMEOUT;
break;
} else {
err_code = ERR_TCP_READ_FAIL;
break;
}
} while ((len_recv < len));
*read_len = (size_t)len_recv;
if (err_code == ERR_TCP_READ_TIMEOUT && len_recv == 0)
err_code = ERR_TCP_NOTHING_TO_READ;
return (len == len_recv) ? RET_SUCCESS : err_code;
}
int read_fully(uintptr_t fd, rapidstring* s, uint32_t timeout_ms) {
int ret, err_code;
uint32_t len_recv;
uint64_t t_end, t_left;
fd_set sets;
struct timeval timeout;
size_t buf_size = 1024;
char buf[buf_size + 1];
memset(buf, 0, buf_size + 1);
t_end = _linux_get_time_ms() + timeout_ms;
err_code = 0;
do {
t_left = _linux_time_left(t_end, _linux_get_time_ms());
if (0 == t_left) {
err_code = ERR_TCP_READ_TIMEOUT;
printf("timeout \n");
break;
}
FD_ZERO(&sets);
FD_SET(fd, &sets);
timeout.tv_sec = t_left / 1000;
timeout.tv_usec = (t_left % 1000) * 1000;
ret = select(fd + 1, &sets, NULL, NULL, &timeout);
if (ret > 0) {
ret = recv(fd, buf, buf_size, 0);
if (ret > 0) {
rs_cat(s, buf);
if (indexof(buf, "0\r\n\r\n") != -1) {
return RET_SUCCESS;
}
memset(buf, 0, buf_size);
} else if (0 == ret) {
err_code = ERR_TCP_PEER_SHUTDOWN;
printf("tcp_peer_shutdown \n");
break;
} else {
if (EINTR == errno) {
continue;
}
err_code = ERR_TCP_READ_FAIL;
printf("ERR_TCP_READ_FAIL \n");
break;
}
} else if (0 == ret) {
err_code = ERR_TCP_READ_TIMEOUT;
printf("ERR_TCP_READ_TIMEOUT \n");
break;
} else {
err_code = ERR_TCP_READ_FAIL;
printf("ERR_TCP_READ_FAIL \n");
break;
}
} while (1);
if (err_code == ERR_TCP_READ_TIMEOUT && len_recv == 0)
err_code = ERR_TCP_NOTHING_TO_READ;
return err_code;
}
int query_sql(sqlite3* db, const char* key, sqlite3_stmt* s) {
//sqlite3_clear_bindings(s);
int rc = sqlite3_bind_text(s, 1, key, strlen(key), NULL);
if (rc) {
fprintf(stderr, "error: Bind %s to %d failed, %s\n", key, rc, sqlite3_errmsg(db));
return rc;
}
rc = sqlite3_step(s);
if (rc != SQLITE_DONE && rc != SQLITE_ROW) {
fprintf(stderr, "insert statement didn't return DONE (%i): %s\n", rc, sqlite3_errmsg(db));
return rc;
}
const char* r = sqlite3_column_text(s, 0);
rc = r != NULL;
//sqlite3_finalize(
sqlite3_reset(s);
return rc;
}
int insert_sql(sqlite3* db, const char* key, const char* word, sqlite3_stmt* s) {
sqlite3_clear_bindings(s);
int rc = sqlite3_bind_text(s, 1, key, strlen(key), NULL);
if (rc) {
fprintf(stderr, "error: Bind %s to %d failed, %s\n", key, rc, sqlite3_errmsg(db));
return rc;
}
rc = sqlite3_bind_text(s, 2, word, strlen(word), NULL);
if (rc) {
fprintf(stderr, "error: Bind %s to %d failed, %s\n", key, rc, sqlite3_errmsg(db));
return rc;
}
rc = sqlite3_step(s);
if (SQLITE_DONE != rc) {
fprintf(stderr, "insert statement didn't return DONE (%i): %s\n", rc, sqlite3_errmsg(db));
return rc;
}
sqlite3_reset(s);
return rc;
}
int query(const char* word) {
uintptr_t fd = connect_socket(DEFAULT_HOST, DEFAULT_PORT);
if (fd == 0) {
printf("connect_socket() \n");
return 0;
}
rapidstring s;
rs_init(&s);
header(&s, word);
size_t written_len = 0;
int rc = write(fd, rs_data(&s), rs_len(&s), 10000, &written_len);
if (rc != RET_SUCCESS) {
CLOSESOCKET(fd);
return 0;
}
size_t read_len = 0;
rs_clear(&s);
rc = read_fully(fd, &s, 10000);
if (rc != RET_SUCCESS) {
rs_free(&s);
CLOSESOCKET(fd);
return 0;
}
char* buf = rs_data(&s);
buf = strstr(buf, "\r\n\r\n");
if (buf != NULL || strlen(buf) < 4) {
buf = buf + 4;
buf = strstr(buf, "\r\n");
} else {
rs_free(&s);
CLOSESOCKET(fd);
return 0;
}
if (buf != NULL || strlen(buf) < 2) {
buf = buf + 2;
} else {
rs_free(&s);
CLOSESOCKET(fd);
return 0;
}
size_t buf_body_len = 1024 << 2, buf_body_read_len = 0;
char buf_body[buf_body_len];
memset(buf_body, 0, buf_body_len);
//printf("%s\n", buf);
cJSON* json = cJSON_Parse(buf);
if (json == NULL) {
const char* error_ptr = cJSON_GetErrorPtr();
if (error_ptr != NULL) {
printf("%s\n", error_ptr);
goto error;
}
}
const cJSON* basic = cJSON_GetObjectItem(json, "basic");
const cJSON* explains = cJSON_GetObjectItem(basic, "explains");
const cJSON* explain = NULL;
cJSON_ArrayForEach(explain, explains) {
strcat(buf_body, explain->valuestring);
strcat(buf_body, "\n");
};
const cJSON* web = cJSON_GetObjectItem(json, "web");
const cJSON* w = NULL;
cJSON_ArrayForEach(w, web) {
strcat(buf_body, cJSON_GetObjectItem(w, "key")->valuestring);
const cJSON* values = cJSON_GetObjectItem(w, "value");
const cJSON* value = NULL;
strcat(buf_body, " ");
cJSON_ArrayForEach(value, values) {
strcat(buf_body, value->valuestring);
strcat(buf_body, ",");
}
buf_body[strlen(buf_body) - 1] = '\n';
}
if (strlen(buf_body) > 0) {
insert_sql(db, word, buf_body, s_insert);
} else {
// printf("[ERROR]: %s %s\n", word,rs_data(&s));
log_err("[ERROR]: %s\n", "Result is empty.");
}
error:
cJSON_Delete(json);
rs_free(&s);
CLOSESOCKET(fd);
return 0;
}
int main() {
#if defined(_WIN32)
WSADATA d;
if (WSAStartup(MAKEWORD(2, 2), &d)) {
printf("Failed to initialize.\n");
return EXIT_FAILURE;
}
#endif
db = database();
table(db);
if (sqlite3_prepare_v2(db, SQL_QUERY, -1, &s_query, NULL)) {
fprintf(stderr, "error: Prepare stmt stmt_insert_ failed, %s\n", sqlite3_errmsg(db));
return EXIT_FAILURE;
}
if (sqlite3_prepare_v2(db, SQL_INSERT, -1, &s_insert, NULL)) {
fprintf(stderr, "error: Prepare stmt stmt_insert_ failed, %s\n", sqlite3_errmsg(db));
return EXIT_FAILURE;
}
// char address_buf[128];
// char service_buf[128];
// getnameinfo(peer_address->ai_addr, peer_address->ai_addrlen,
// address_buf, sizeof(address_buf),
// service_buf, sizeof(service_buf),
// NI_NUMERICHOST);
// printf("%s %s\n", address_buf, service_buf);
list_head_t* word_list = collect();
word_t *pos, *tmp;
list_for_each_entry_safe(pos, tmp, word_list, list, word_t) {
int rc = query_sql(db, pos->buf, s_query);
if (!rc) {
printf("Processing: %s\n", pos->buf);
query(pos->buf);
} else {
//printf("Processed: %s\n", pos->buf);
}
list_del(&pos->list);
free(pos->buf);
free(pos);
}
//query();
//query("word");
#if defined(_WIN32)
WSACleanup();
#endif
return EXIT_SUCCESS;
}