Botan
1.11.15
|
Classes | |
struct | Response |
Typedefs | |
typedef std::function < std::string(const std::string &, const std::string &)> | http_exch_fn |
Functions | |
std::future< Response > | GET_async (const std::string &url, size_t allowable_redirects) |
Response | GET_sync (const std::string &url, size_t allowable_redirects) |
Response | http_sync (http_exch_fn http_transact, const std::string &verb, const std::string &url, const std::string &content_type, const std::vector< byte > &body, size_t allowable_redirects) |
Response | http_sync (const std::string &verb, const std::string &url, const std::string &content_type, const std::vector< byte > &body, size_t allowable_redirects) |
std::string | http_transact_fail (const std::string &hostname, const std::string &) |
std::ostream & | operator<< (std::ostream &o, const Response &resp) |
Response | POST_sync (const std::string &url, const std::string &content_type, const std::vector< byte > &body, size_t allowable_redirects) |
std::string | url_encode (const std::string &in) |
typedef std::function<std::string (const std::string&, const std::string&)> Botan::HTTP::http_exch_fn |
Definition at line 58 of file http_util.h.
std::future< Response > BOTAN_DLL Botan::HTTP::GET_async | ( | const std::string & | url, |
size_t | allowable_redirects | ||
) |
Definition at line 222 of file http_util.cpp.
References GET_sync().
{ return std::async(std::launch::async, GET_sync, url, allowable_redirects); }
BOTAN_DLL Response Botan::HTTP::GET_sync | ( | const std::string & | url, |
size_t | allowable_redirects | ||
) |
Definition at line 209 of file http_util.cpp.
References http_sync().
Referenced by GET_async(), and http_sync().
{ return http_sync("GET", url, "", std::vector<byte>(), allowable_redirects); }
BOTAN_DLL Response Botan::HTTP::http_sync | ( | http_exch_fn | http_transact, |
const std::string & | verb, | ||
const std::string & | url, | ||
const std::string & | content_type, | ||
const std::vector< byte > & | body, | ||
size_t | allowable_redirects | ||
) |
Definition at line 83 of file http_util.cpp.
References GET_sync(), Botan::search_map(), Botan::ASN1::to_string(), and Botan::to_u32bit().
Referenced by GET_sync(), http_sync(), and POST_sync().
{ const auto protocol_host_sep = url.find("://"); if(protocol_host_sep == std::string::npos) throw std::runtime_error("Invalid URL " + url); const std::string protocol = url.substr(0, protocol_host_sep); const auto host_loc_sep = url.find('/', protocol_host_sep + 3); std::string hostname, loc; if(host_loc_sep == std::string::npos) { hostname = url.substr(protocol_host_sep + 3, std::string::npos); loc = "/"; } else { hostname = url.substr(protocol_host_sep + 3, host_loc_sep-protocol_host_sep-3); loc = url.substr(host_loc_sep, std::string::npos); } std::ostringstream outbuf; outbuf << verb << " " << loc << " HTTP/1.0\r\n"; outbuf << "Host: " << hostname << "\r\n"; if(verb == "GET") { outbuf << "Accept: */*\r\n"; outbuf << "Cache-Control: no-cache\r\n"; } else if(verb == "POST") outbuf << "Content-Length: " << body.size() << "\r\n"; if(content_type != "") outbuf << "Content-Type: " << content_type << "\r\n"; outbuf << "Connection: close\r\n\r\n"; outbuf.write(reinterpret_cast<const char*>(&body[0]), body.size()); std::istringstream io(http_transact(hostname, outbuf.str())); std::string line1; std::getline(io, line1); if(!io || line1.empty()) throw std::runtime_error("No response"); std::stringstream response_stream(line1); std::string http_version; unsigned int status_code; std::string status_message; response_stream >> http_version >> status_code; std::getline(response_stream, status_message); if(!response_stream || http_version.substr(0,5) != "HTTP/") throw std::runtime_error("Not an HTTP response"); std::map<std::string, std::string> headers; std::string header_line; while (std::getline(io, header_line) && header_line != "\r") { auto sep = header_line.find(": "); if(sep == std::string::npos || sep > header_line.size() - 2) throw std::runtime_error("Invalid HTTP header " + header_line); const std::string key = header_line.substr(0, sep); if(sep + 2 < header_line.size() - 1) { const std::string val = header_line.substr(sep + 2, (header_line.size() - 1) - (sep + 2)); headers[key] = val; } } if(status_code == 301 && headers.count("Location")) { if(allowable_redirects == 0) throw std::runtime_error("HTTP redirection count exceeded"); return GET_sync(headers["Location"], allowable_redirects - 1); } std::vector<byte> resp_body; std::vector<byte> buf(4096); while(io.good()) { io.read(reinterpret_cast<char*>(&buf[0]), buf.size()); resp_body.insert(resp_body.end(), &buf[0], &buf[io.gcount()]); } const std::string header_size = search_map(headers, std::string("Content-Length")); if(header_size != "") { if(resp_body.size() != to_u32bit(header_size)) throw std::runtime_error("Content-Length disagreement, header says " + header_size + " got " + std::to_string(resp_body.size())); } return Response(status_code, status_message, resp_body, headers); }
BOTAN_DLL Response Botan::HTTP::http_sync | ( | const std::string & | verb, |
const std::string & | url, | ||
const std::string & | content_type, | ||
const std::vector< byte > & | body, | ||
size_t | allowable_redirects | ||
) |
Definition at line 190 of file http_util.cpp.
References http_sync(), and http_transact_fail().
{ return http_sync( #if defined(BOTAN_HAS_BOOST_ASIO) http_transact_asio, #else http_transact_fail, #endif verb, url, content_type, body, allowable_redirects); }
std::string BOTAN_DLL Botan::HTTP::http_transact_fail | ( | const std::string & | hostname, |
const std::string & | |||
) |
Definition at line 45 of file http_util.cpp.
Referenced by http_sync().
{ throw std::runtime_error("Cannot connect to " + hostname + ": network code disabled in build"); }
BOTAN_DLL std::ostream & Botan::HTTP::operator<< | ( | std::ostream & | o, |
const Response & | resp | ||
) |
Definition at line 73 of file http_util.cpp.
References Botan::HTTP::Response::body(), Botan::HTTP::Response::headers(), Botan::HTTP::Response::status_code(), Botan::HTTP::Response::status_message(), and Botan::ASN1::to_string().
{ o << "HTTP " << resp.status_code() << " " << resp.status_message() << "\n"; for(auto h : resp.headers()) o << "Header '" << h.first << "' = '" << h.second << "'\n"; o << "Body " << std::to_string(resp.body().size()) << " bytes:\n"; o.write(reinterpret_cast<const char*>(&resp.body()[0]), resp.body().size()); return o; }
BOTAN_DLL Response Botan::HTTP::POST_sync | ( | const std::string & | url, |
const std::string & | content_type, | ||
const std::vector< byte > & | body, | ||
size_t | allowable_redirects | ||
) |
Definition at line 214 of file http_util.cpp.
References http_sync().
Referenced by Botan::OCSP::online_check().
{ return http_sync("POST", url, content_type, body, allowable_redirects); }
BOTAN_DLL std::string Botan::HTTP::url_encode | ( | const std::string & | in | ) |
Definition at line 52 of file http_util.cpp.
References c.
{ std::ostringstream out; for(auto c : in) { if(c >= 'A' && c <= 'Z') out << c; else if(c >= 'a' && c <= 'z') out << c; else if(c >= '0' && c <= '9') out << c; else if(c == '-' || c == '_' || c == '.' || c == '~') out << c; else out << '%' << hex_encode(reinterpret_cast<byte*>(&c), 1); } return out.str(); }