mirror of
https://gitee.com/acl-dev/acl.git
synced 2024-12-04 21:09:19 +08:00
351 lines
8.8 KiB
C++
351 lines
8.8 KiB
C++
#include "stdafx.h"
|
||
#include "http_servlet.h"
|
||
|
||
static acl::atomic_long __counter = 0;
|
||
|
||
http_servlet::http_servlet(acl::socket_stream* stream, acl::session* session)
|
||
: acl::HttpServlet(stream, session)
|
||
, fsize1_(-1)
|
||
, fsize2_(-1)
|
||
, fsize3_(-1)
|
||
{
|
||
handlers_["/upload"] = &http_servlet::onUpload;
|
||
}
|
||
|
||
http_servlet::~http_servlet(void)
|
||
{
|
||
}
|
||
|
||
bool http_servlet::doError(request_t&, response_t& res)
|
||
{
|
||
res.setStatus(400);
|
||
res.setContentType("text/xml; charset=utf-8");
|
||
|
||
// 发送 http 响应体
|
||
acl::string buf;
|
||
buf.format("<root error='some error happened!' />\r\n");
|
||
res.write(buf);
|
||
res.write(NULL, 0);
|
||
return false;
|
||
}
|
||
|
||
bool http_servlet::doOther(request_t&, response_t& res, const char* method)
|
||
{
|
||
res.setStatus(400);
|
||
res.setContentType("text/xml; charset=utf-8");
|
||
// 发送 http 响应体
|
||
acl::string buf;
|
||
buf.format("<root error='unkown request method %s' />\r\n", method);
|
||
res.write(buf);
|
||
res.write(NULL, 0);
|
||
return false;
|
||
}
|
||
|
||
bool http_servlet::doGet(request_t& req, response_t& res)
|
||
{
|
||
return doPost(req, res);
|
||
}
|
||
|
||
bool http_servlet::doPost(request_t& req, response_t& res)
|
||
{
|
||
const char* ptr = req.getPathInfo();
|
||
if (ptr == NULL || *ptr == 0) {
|
||
logger_error("path null");
|
||
return doError(req, res);
|
||
}
|
||
|
||
acl::string path(ptr);
|
||
path.lower();
|
||
|
||
// 根据 uri path 查找对应的处理句柄，从而实现 HTTP 路由功能
|
||
|
||
std::map<std::string, handler_t>::iterator it =
|
||
handlers_.find(path.c_str());
|
||
|
||
if (it == handlers_.end()) {
|
||
return onPage(req, res);
|
||
}
|
||
|
||
return (this->*it->second)(req, res);
|
||
}
|
||
|
||
// 缺省 HTTP 请求，将 upload.html 页面返回给 HTTP 客户端
|
||
bool http_servlet::onPage(request_t& req, response_t& res)
|
||
{
|
||
res.setContentType("text/html; charset=utf-8") // 设置响应字符集
|
||
.setKeepAlive(req.isKeepAlive()) // 设置是否保持长连接
|
||
.setContentEncoding(true) // 自动支持压缩传输
|
||
.setChunkedTransferEncoding(true); // 采用 chunk 传输方式
|
||
|
||
const char* page_html = "upload.html";
|
||
acl::string buf;
|
||
|
||
if (!acl::ifstream::load(page_html, &buf)) {
|
||
buf.format("load %s error %s", page_html, acl::last_serror());
|
||
}
|
||
|
||
res.setContentLength(buf.size());
|
||
return res.write(buf) && res.write(NULL, 0);
|
||
}
|
||
|
||
bool http_servlet::onUpload(request_t& req, response_t& res)
|
||
{
|
||
res.setContentType("text/xml; charset=utf-8") // 设置响应字符集
|
||
.setKeepAlive(req.isKeepAlive()) // 设置是否保持长连接
|
||
.setContentEncoding(true) // 自动支持压缩传输
|
||
.setChunkedTransferEncoding(true); // 采用 chunk 传输方式
|
||
|
||
// 获得 HTTP 请求的数据类型，正常的参数类型，即 name&value 方式
|
||
// 还是 MIME 数据类型，还是数据流类型
|
||
acl::http_request_t request_type = req.getRequestType();
|
||
if (request_type != acl::HTTP_REQUEST_MULTIPART_FORM) {
|
||
logger_warn("should be acl::HTTP_REQUEST_MULTIPART_FORM");
|
||
return onPage(req, res);
|
||
}
|
||
|
||
// 先获得 Content-Type 对应的 http_ctype 对象
|
||
acl::http_mime* mime = req.getHttpMime();
|
||
if (mime == NULL) {
|
||
logger_error("http_mime null");
|
||
return onPage(req, res);
|
||
}
|
||
|
||
// 获得数据体的长度
|
||
long long content_length = req.getContentLength();
|
||
if (content_length <= 0) {
|
||
logger_error("body empty");
|
||
return onPage(req, res);
|
||
}
|
||
|
||
acl::string path;
|
||
long long n = ++__counter;
|
||
long long i = __counter.value();
|
||
printf("i=%lld, n=%lld\r\n", i, n);
|
||
#if defined(_WIN32) || defined(_WIN64)
|
||
path.format("%s\\mime_file.%u.%lld",
|
||
var_cfg_var_path, (unsigned) _getpid(), n);
|
||
#else
|
||
path.format("%s/mime_file.%u.%lld",
|
||
var_cfg_var_path, (unsigned) getpid(), n);
|
||
#endif
|
||
|
||
acl::meter_time(__FUNCTION__, __LINE__, "begin");
|
||
|
||
acl::ofstream fp;
|
||
if (!fp.open_write(path)) {
|
||
logger_error("open %s error %s",
|
||
path.c_str(), acl::last_serror());
|
||
return doReply(req, res, "open file error");
|
||
}
|
||
|
||
// 设置原始文件存入路径
|
||
mime->set_saved_path(path);
|
||
|
||
if (!upload(req, res, content_length, fp, *mime)) {
|
||
reset();
|
||
return false;
|
||
}
|
||
if (!parse(req, res, *mime)) {
|
||
reset();
|
||
return false;
|
||
}
|
||
|
||
reset();
|
||
return true;
|
||
}
|
||
|
||
bool http_servlet::upload(request_t& req, response_t& res,
|
||
long long content_length, acl::ofstream& fp, acl::http_mime& mime)
|
||
{
|
||
// 获得输入流
|
||
acl::istream& in = req.getInputStream();
|
||
bool finish = false;
|
||
char buf[8192];
|
||
|
||
//logger(">>>>>>>>>>read: %lld, total: %lld<<<<<",
|
||
// read_length_, content_length_);
|
||
|
||
long long read_length = 0;
|
||
|
||
// 读取 HTTP 客户端请求数据
|
||
while (content_length > read_length) {
|
||
size_t size = (size_t) (content_length - read_length);
|
||
if (size > sizeof(buf)) {
|
||
size = sizeof(buf);
|
||
}
|
||
int ret = in.read(buf, size);
|
||
if (ret <= 0) {
|
||
break;
|
||
}
|
||
|
||
//printf(">>>size: %d\r\n", ret);
|
||
if (fp.write(buf, ret) == -1) {
|
||
logger_error("write error %s", acl::last_serror());
|
||
(void) doReply(req, res, "write error");
|
||
return false;
|
||
}
|
||
|
||
read_length += ret;
|
||
|
||
// 将读得到的数据输入至解析器进行解析
|
||
// 如果再读到多余数据，可以直接丢掉，不必再放入 mime 解析器中
|
||
if (!finish && mime.update(buf, (size_t) ret)) {
|
||
finish = true;
|
||
}
|
||
}
|
||
|
||
if (in.eof()) {
|
||
logger_error("read error from http client");
|
||
return false;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
bool http_servlet::parse(request_t& req, response_t& res, acl::http_mime& mime)
|
||
{
|
||
const char* ptr = req.getParameter("name1");
|
||
if (ptr) {
|
||
param1_ = ptr;
|
||
}
|
||
ptr = req.getParameter("name2");
|
||
if (ptr) {
|
||
param2_ = ptr;
|
||
}
|
||
ptr = req.getParameter("name3");
|
||
if (ptr) {
|
||
param3_ = ptr;
|
||
}
|
||
|
||
acl::string path;
|
||
|
||
// 遍历所有的 MIME 结点，找出其中为文件结点的部分进行转储
|
||
const std::list<acl::http_mime_node*>& nodes = mime.get_nodes();
|
||
std::list<acl::http_mime_node*>::const_iterator cit = nodes.begin();
|
||
for (; cit != nodes.end(); ++cit) {
|
||
const char* name = (*cit)->get_name();
|
||
if (name == NULL) {
|
||
continue;
|
||
}
|
||
|
||
acl::http_mime_t mime_type = (*cit)->get_mime_type();
|
||
if (mime_type == acl::HTTP_MIME_FILE) {
|
||
const char* filename = (*cit)->get_filename();
|
||
if (filename == NULL) {
|
||
logger("filename null");
|
||
continue;
|
||
}
|
||
|
||
// 有的浏览器（如IE）上传文件时会带着文件路径，所以
|
||
// 需要先将路径去掉
|
||
filename = acl_safe_basename(filename);
|
||
#if defined(_WIN32) || defined(_WIN64)
|
||
path.format("%s\\%s", var_cfg_var_path, filename);
|
||
#else
|
||
path.format("%s/%s", var_cfg_var_path, filename);
|
||
#endif
|
||
(void) (*cit)->save(path.c_str());
|
||
|
||
if (strcmp(name, "file1") == 0) {
|
||
file1_ = filename;
|
||
fsize1_ = get_fsize(var_cfg_var_path, filename);
|
||
} else if (strcmp(name, "file2") == 0) {
|
||
file2_ = filename;
|
||
fsize2_ = get_fsize(var_cfg_var_path, filename);
|
||
} else if (strcmp(name, "file3") == 0) {
|
||
file3_ = filename;
|
||
fsize3_ = get_fsize(var_cfg_var_path, filename);
|
||
}
|
||
}
|
||
}
|
||
|
||
// 查找上载的某个文件并转储
|
||
const acl::http_mime_node* node = mime.get_node("file1");
|
||
if (node && node->get_mime_type() == acl::HTTP_MIME_FILE) {
|
||
ptr = node->get_filename();
|
||
if (ptr) {
|
||
// 有的浏览器（如IE）上传文件时会带着文件路径，所以
|
||
// 需要先将路径去掉
|
||
ptr = acl_safe_basename(ptr);
|
||
#if defined(_WIN32) || defined(_WIN64)
|
||
path.format("%s\\1_%s", var_cfg_var_path, ptr);
|
||
#else
|
||
path.format("%s/1_%s", var_cfg_var_path, ptr);
|
||
#endif
|
||
(void) node->save(path.c_str());
|
||
}
|
||
}
|
||
|
||
return doReply(req, res, "OK");
|
||
}
|
||
|
||
bool http_servlet::doReply(request_t& req, response_t& res, const char* info)
|
||
{
|
||
// 创建 xml 格式的数据体
|
||
acl::xml1 body;
|
||
|
||
body.get_root().add_child("root", true)
|
||
.add_child("content_type", true)
|
||
.add_attr("type", (int) req.getRequestType())
|
||
.get_parent()
|
||
.add_child("info", true)
|
||
.set_text(info)
|
||
.get_parent()
|
||
.add_child("params", true)
|
||
.add_child("param", true)
|
||
.add_attr("name1", param1_)
|
||
.get_parent()
|
||
.add_child("param", true)
|
||
.add_attr("name2", param2_)
|
||
.get_parent()
|
||
.add_child("param", true)
|
||
.add_attr("name3", param3_)
|
||
.get_parent()
|
||
.add_child("files", true)
|
||
.add_child("file", true)
|
||
.add_attr("filename", file1_)
|
||
.add_attr("fsize", fsize1_)
|
||
.get_parent()
|
||
.add_child("file", true)
|
||
.add_attr("filename", file2_)
|
||
.add_attr("fsize", fsize2_)
|
||
.get_parent()
|
||
.add_child("file", true)
|
||
.add_attr("filename", file3_)
|
||
.add_attr("fsize", fsize3_);
|
||
acl::string buf;
|
||
body.build_xml(buf);
|
||
|
||
logger(">>%s<<", buf.c_str());
|
||
return res.write(buf) && res.write(NULL, 0);
|
||
}
|
||
|
||
long long http_servlet::get_fsize(const char* dir, const char* filename)
|
||
{
|
||
acl::string path;
|
||
#if defined(_WIN32) || defined(_WIN64)
|
||
path.format("%s\\%s", dir, filename);
|
||
#else
|
||
path.format("%s/%s", dir, filename);
|
||
#endif
|
||
acl::ifstream in;
|
||
if (in.open_read(path) == false) {
|
||
logger_error("open %s error %s", path.c_str(), acl::last_serror());
|
||
return -1;
|
||
}
|
||
return in.fsize();
|
||
}
|
||
|
||
void http_servlet::reset(void)
|
||
{
|
||
param1_.clear();
|
||
param2_.clear();
|
||
param3_.clear();
|
||
file1_.clear();
|
||
file2_.clear();
|
||
file3_.clear();
|
||
fsize1_ = -1;
|
||
fsize2_ = -1;
|
||
fsize3_ = -1;
|
||
}
|