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/*! |
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\file |
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\brief HTTP アクセス |
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|
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\author Satofumi KAMIMURA |
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|
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$Id$ |
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*/ |
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|
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#include "HttpAccess.h" |
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#include "NetInit.h" |
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#include "TcpipCtrl.h" |
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#include <string> |
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|
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using namespace beego; |
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|
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|
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struct HttpAccess::pImpl : private NetInit { |
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std::string error_message_; |
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TcpipCtrl con_; |
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std::string server_; |
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|
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pImpl(const char* server, long port) |
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: error_message_("no error."), server_(server) { |
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|
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if (! con_.connect(server, 80)) { |
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// !!! エラーを LogManager 出力すべき |
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//fprintf(stderr, "HttpAccess::pImpl::connect: %s\n", con_.what()); |
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|
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error_message_ = con_.what(); |
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|
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// !!! ここは、できれば例外を投げるべき |
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// !!! 無効なオブジェクトの生成を許可すべきではない |
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return; |
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} |
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} |
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|
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bool isLF(char ch) { |
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return ((ch == '\n') || (ch == '\r')) ? true : false; |
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} |
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}; |
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|
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|
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HttpAccess::HttpAccess(const char* server, long port) |
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: pimpl(new pImpl(server, port)) { |
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} |
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|
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|
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HttpAccess::~HttpAccess(void) { |
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} |
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|
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|
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const char* HttpAccess::what(void) { |
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return pimpl->error_message_.c_str(); |
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} |
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|
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|
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bool HttpAccess::get(std::vector<char>& page, const char* address) { |
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if (! pimpl->con_.isConnected()) { |
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return false; |
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} |
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|
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// !!! CR, LF を文字コードで指定すべき |
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// !!! \n の解釈が、OS によって異なるため |
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std::string request = |
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"GET " + std::string(address) + " HTTP/1.0\r\n" |
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"Host: " + pimpl->server_ + "\r\n" |
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"\r\n"; |
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|
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//fprintf(stderr, "request: %s\n", request.c_str()); |
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pimpl->con_.send(request.c_str(), static_cast<int>(request.size())); |
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|
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// !!! えっと、書き直そうね? |
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// !!! ループからして、ひどいよ? |
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int lf_count = 0; |
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char ch; |
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int n; |
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bool now_header = true; |
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std::string line; |
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size_t left_byte = 0; // 残り受信バイト数 |
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|
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do { |
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if (now_header) { |
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n = pimpl->con_.recv(&ch, 1, 1000); |
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} else { |
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// !!! バッファに読み出し、page に対して格納すべき |
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n = pimpl->con_.recv(&ch, (left_byte > 0 ? 1 : 0), 1000); |
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--left_byte; |
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} |
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if (n > 0) { |
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|
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if (! now_header) { |
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page.push_back(ch); |
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} else { |
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// 行を格納し、Content-Length: の数値だけ読み出す |
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if (isprint(ch)) { |
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line.push_back(ch); |
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} else { |
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if (! line.compare(0, 16, "Content-Length: ")) { |
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left_byte = atoi(&line[16]); |
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} |
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line.clear(); |
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} |
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} |
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|
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if (pimpl->isLF(ch)) { |
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++lf_count; |
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if (lf_count >= 4) { |
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now_header = false; |
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} |
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} else { |
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lf_count = 0; |
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} |
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} |
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} while (n > 0); |
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|
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return true; |
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} |