Split HTTP namespace up into http_parser.h and url.h, since the URL library can be useful stand-alone as well.
This commit is contained in:
Thulinma
parent
e0dfc3a4db
commit
793f6f7809
7 changed files with 307 additions and 283 deletions
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@ -138,6 +138,7 @@ set(libHeaders
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lib/ebml.h
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lib/ebml_socketglue.h
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lib/websocket.h
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lib/url.h
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)
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########################################
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@ -181,6 +182,7 @@ add_library (mist
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lib/ebml.cpp
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lib/ebml_socketglue.cpp
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lib/websocket.cpp
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lib/url.cpp
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)
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if (NOT APPLE)
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set (LIBRT -lrt)
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@ -1,4 +1,5 @@
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#include "http_parser.h"
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#include "url.h"
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#include "socket.h"
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namespace HTTP{
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@ -7,268 +7,9 @@
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#include "defines.h"
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#include "encode.h"
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#include "timing.h"
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#include "url.h"
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#include <iomanip>
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/// Helper function to check if the given c-string is numeric or not
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static bool is_numeric(const char *str){
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while (str[0] != 0){
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if (str[0] < 48 || str[0] > 57){return false;}
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++str;
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}
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return true;
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}
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/// Constructor that does the actual parsing
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HTTP::URL::URL(const std::string &url){
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IPv6Addr = false;
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// first detect protocol at the start, if any
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size_t proto_sep = url.find("://");
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if (proto_sep != std::string::npos){
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protocol = url.substr(0, proto_sep);
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proto_sep += 3;
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}else{
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proto_sep = 0;
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if (url.substr(0, 2) == "//"){proto_sep = 2;}
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}
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// proto_sep now points to the start of the host, guaranteed
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// continue by finding the path, if any
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size_t first_slash = url.find_first_of("/?#", proto_sep);
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if (first_slash != std::string::npos){
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if (url[first_slash] == '/'){
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path = url.substr(first_slash + 1);
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}else{
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path = url.substr(first_slash);
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}
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size_t hmark = path.find('#');
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if (hmark != std::string::npos){
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frag = Encodings::URL::decode(path.substr(hmark + 1));
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path.erase(hmark);
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}
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size_t qmark = path.find('?');
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if (qmark != std::string::npos){
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args = path.substr(qmark + 1);
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path.erase(qmark);
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}
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if (path.size()){
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if (path[0] == '/'){path.erase(0, 1);}
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size_t dots = path.find("/./");
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while (dots != std::string::npos){
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DONTEVEN_MSG("%s (/./ -> /)", path.c_str());
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path.erase(dots, 2);
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dots = path.find("/./");
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}
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dots = path.find("//");
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while (dots != std::string::npos){
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DONTEVEN_MSG("%s (// -> /)", path.c_str());
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path.erase(dots, 1);
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dots = path.find("//");
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}
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if (path[0] == '/'){path.erase(0, 1);}
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dots = path.find("/../");
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while (dots != std::string::npos){
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size_t prevslash = path.rfind('/', dots - 1);
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if (prevslash == std::string::npos || dots == 0){
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path.erase(0, dots + 4);
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}else{
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path.erase(prevslash + 1, dots - prevslash + 3);
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}
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dots = path.find("/../");
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}
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if (path.substr(0, 2) == "./"){path.erase(0, 2);}
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if (path.substr(0, 3) == "../"){path.erase(0, 3);}
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path = Encodings::URL::decode(path);
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}
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}
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// user, pass, host and port are now definitely between proto_sep and first_slash
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std::string uphp = url.substr(proto_sep, first_slash - proto_sep); // user+pass+host+port
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// Check if we have a user/pass before the host
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size_t at_sign = uphp.find('@');
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if (at_sign != std::string::npos){
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std::string creds = uphp.substr(0, at_sign);
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uphp.erase(0, at_sign + 1);
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size_t colon = creds.find(':');
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if (colon != std::string::npos){
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user = Encodings::URL::decode(creds.substr(0, colon));
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pass = Encodings::URL::decode(creds.substr(colon + 1));
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}else{
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user = Encodings::URL::decode(creds);
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}
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}
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// we check for [ at the start because we may have an IPv6 address as host
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if (uphp[0] == '['){
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// IPv6 address - find matching brace
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IPv6Addr = true;
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size_t closing_brace = uphp.find(']');
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host = uphp.substr(1, closing_brace - 1);
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// continue by finding port, if any
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size_t colon = uphp.find(':', closing_brace);
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if (colon == std::string::npos){
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// no port. Assume default
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port = "";
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}else{
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// we have a port number, read it
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port = uphp.substr(colon + 1);
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if (!is_numeric(port.c_str())){
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host += ":" + port;
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port = "";
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}
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}
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}else{
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//"normal" host - first find port, if any
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size_t colon = uphp.rfind(':');
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if (colon == std::string::npos){
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// no port. Assume default
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port = "";
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host = uphp;
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}else{
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// we have a port number, read it
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port = uphp.substr(colon + 1);
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host = uphp.substr(0, colon);
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if (!is_numeric(port.c_str())){
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IPv6Addr = true;
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host += ":" + port;
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port = "";
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}
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}
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}
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// if the host is numeric, assume it is a port, instead
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if (host.size() && is_numeric(host.c_str())){
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port = host;
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host = "";
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}
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EXTREME_MSG("URL: %s", getUrl().c_str());
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}
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/// Returns the port in numeric format
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uint32_t HTTP::URL::getPort() const{
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if (!port.size()){return getDefaultPort();}
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return atoi(port.c_str());
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}
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/// Returns the default port for the protocol in numeric format
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uint32_t HTTP::URL::getDefaultPort() const{
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if (protocol == "http"){return 80;}
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if (protocol == "https"){return 443;}
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if (protocol == "rtmp"){return 1935;}
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if (protocol == "rtmps"){return 443;}
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if (protocol == "dtsc"){return 4200;}
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if (protocol == "rtsp"){return 554;}
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return 0;
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}
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/// Returns the file extension of the URL, or an empty string if none.
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std::string HTTP::URL::getExt() const{
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if (path.rfind('.') == std::string::npos){
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return "";
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}
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return path.substr(path.rfind('.')+1);
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}
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/// Returns the full URL in string format
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std::string HTTP::URL::getUrl() const{
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std::string ret;
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if (protocol.size()){
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ret = protocol + "://";
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}else{
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ret = "//";
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}
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if (user.size() || pass.size()){
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ret += Encodings::URL::encode(user) + ":" + Encodings::URL::encode(pass) + "@";
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}
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if (IPv6Addr){
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ret += "[" + host + "]";
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}else{
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ret += host;
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}
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if (port.size() && getPort() != getDefaultPort()){ret += ":" + port;}
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ret += "/";
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if (path.size()){ret += Encodings::URL::encode(path, "/:=@[]");}
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if (args.size()){ret += "?" + args;}
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if (frag.size()){ret += "#" + Encodings::URL::encode(frag, "/:=@[]#?&");}
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return ret;
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}
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/// Returns the full file path, in case this is a local file URI
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std::string HTTP::URL::getFilePath() const{
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return "/"+path;
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}
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/// Returns the URL in string format without auth and frag
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std::string HTTP::URL::getProxyUrl() const{
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std::string ret;
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if (protocol.size()){
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ret = protocol + "://";
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}else{
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ret = "//";
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}
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if (IPv6Addr){
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ret += "[" + host + "]";
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}else{
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ret += host;
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}
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if (port.size() && getPort() != getDefaultPort()){ret += ":" + port;}
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ret += "/";
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if (path.size()){ret += Encodings::URL::encode(path, "/:=@[]");}
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if (args.size()){ret += "?" + args;}
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return ret;
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}
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/// Returns the URL in string format without args and frag
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std::string HTTP::URL::getBareUrl() const{
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std::string ret;
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if (protocol.size()){
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ret = protocol + "://";
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}else{
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ret = "//";
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}
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if (user.size() || pass.size()){
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ret += Encodings::URL::encode(user) + ":" + Encodings::URL::encode(pass) + "@";
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}
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if (IPv6Addr){
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ret += "[" + host + "]";
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}else{
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ret += host;
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}
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if (port.size() && getPort() != getDefaultPort()){ret += ":" + port;}
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ret += "/";
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if (path.size()){ret += Encodings::URL::encode(path, "/:=@[]");}
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return ret;
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}
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/// Returns a URL object for the given link, resolved relative to the current URL object.
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HTTP::URL HTTP::URL::link(const std::string &l) const{
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// Full link
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if (l.find("://") < l.find('/') && l.find('/' != std::string::npos)){
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DONTEVEN_MSG("Full link: %s", l.c_str());
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return URL(l);
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}
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// Absolute link
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if (l[0] == '/'){
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DONTEVEN_MSG("Absolute link: %s", l.c_str());
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if (l.size() > 1 && l[1] == '/'){
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// Same-protocol full link
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return URL(protocol + ":" + l);
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}else{
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// Same-domain/port absolute link
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URL tmp = *this;
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tmp.args.clear();
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tmp.path = l.substr(1);
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// Abuse the fact that we don't check for arguments in getUrl()
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return URL(tmp.getUrl());
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}
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}
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// Relative link
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std::string tmpUrl = getBareUrl();
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size_t slashPos = tmpUrl.rfind('/');
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if (slashPos == std::string::npos){
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tmpUrl += "/";
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}else{
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tmpUrl.erase(slashPos + 1);
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}
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DONTEVEN_MSG("Relative link: %s+%s", tmpUrl.c_str(), l.c_str());
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return URL(tmpUrl + l);
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}
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/// This constructor creates an empty HTTP::Parser, ready for use for either reading or writing.
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/// All this constructor does is call HTTP::Parser::Clean().
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HTTP::Parser::Parser(){
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@ -73,28 +73,5 @@ namespace HTTP{
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void Trim(std::string &s);
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};
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/// URL parsing class. Parses full URL into its subcomponents
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class URL{
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public:
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URL(const std::string &url = "");
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uint32_t getPort() const;
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uint32_t getDefaultPort() const;
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std::string getExt() const;
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std::string getUrl() const;
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std::string getFilePath() const;
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std::string getBareUrl() const;
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std::string getProxyUrl() const;
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std::string host; ///< Hostname or IP address of URL
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std::string protocol; ///< Protocol of URL
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std::string port; ///< Port of URL
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std::string path; ///< Path after the first slash (not inclusive) but before any question mark
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std::string args; ///< Everything after the question mark in the path, if it was present
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std::string frag; ///< Everything after the # in the path, if it was present
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std::string user; ///< Username, if it was present
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std::string pass; ///< Password, if it was present
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URL link(const std::string &l) const;
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bool IPv6Addr;
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};
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}// namespace HTTP
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267
lib/url.cpp
Normal file
267
lib/url.cpp
Normal file
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@ -0,0 +1,267 @@
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/// \file http_parser.cpp
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/// Holds all code for the HTTP namespace.
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#include "url.h"
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#include "defines.h"
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#include "encode.h"
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/// Helper function to check if the given c-string is numeric or not
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static bool is_numeric(const char *str){
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while (str[0] != 0){
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if (str[0] < 48 || str[0] > 57){return false;}
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++str;
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}
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return true;
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}
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/// Constructor that does the actual parsing
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HTTP::URL::URL(const std::string &url){
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IPv6Addr = false;
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// first detect protocol at the start, if any
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size_t proto_sep = url.find("://");
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if (proto_sep != std::string::npos){
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protocol = url.substr(0, proto_sep);
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proto_sep += 3;
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}else{
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proto_sep = 0;
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if (url.substr(0, 2) == "//"){proto_sep = 2;}
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}
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// proto_sep now points to the start of the host, guaranteed
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// continue by finding the path, if any
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size_t first_slash = url.find_first_of("/?#", proto_sep);
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if (first_slash != std::string::npos){
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if (url[first_slash] == '/'){
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path = url.substr(first_slash + 1);
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}else{
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path = url.substr(first_slash);
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}
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size_t hmark = path.find('#');
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if (hmark != std::string::npos){
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frag = Encodings::URL::decode(path.substr(hmark + 1));
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path.erase(hmark);
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}
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size_t qmark = path.find('?');
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if (qmark != std::string::npos){
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args = path.substr(qmark + 1);
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path.erase(qmark);
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}
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if (path.size()){
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if (path[0] == '/'){path.erase(0, 1);}
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size_t dots = path.find("/./");
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while (dots != std::string::npos){
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DONTEVEN_MSG("%s (/./ -> /)", path.c_str());
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path.erase(dots, 2);
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dots = path.find("/./");
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}
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dots = path.find("//");
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while (dots != std::string::npos){
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DONTEVEN_MSG("%s (// -> /)", path.c_str());
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path.erase(dots, 1);
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dots = path.find("//");
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}
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if (path[0] == '/'){path.erase(0, 1);}
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dots = path.find("/../");
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while (dots != std::string::npos){
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size_t prevslash = path.rfind('/', dots - 1);
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if (prevslash == std::string::npos || dots == 0){
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path.erase(0, dots + 4);
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}else{
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path.erase(prevslash + 1, dots - prevslash + 3);
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}
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dots = path.find("/../");
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}
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if (path.substr(0, 2) == "./"){path.erase(0, 2);}
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if (path.substr(0, 3) == "../"){path.erase(0, 3);}
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path = Encodings::URL::decode(path);
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}
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}
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// user, pass, host and port are now definitely between proto_sep and first_slash
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std::string uphp = url.substr(proto_sep, first_slash - proto_sep); // user+pass+host+port
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// Check if we have a user/pass before the host
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size_t at_sign = uphp.find('@');
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if (at_sign != std::string::npos){
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std::string creds = uphp.substr(0, at_sign);
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uphp.erase(0, at_sign + 1);
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size_t colon = creds.find(':');
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if (colon != std::string::npos){
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user = Encodings::URL::decode(creds.substr(0, colon));
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pass = Encodings::URL::decode(creds.substr(colon + 1));
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}else{
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user = Encodings::URL::decode(creds);
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}
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}
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// we check for [ at the start because we may have an IPv6 address as host
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if (uphp[0] == '['){
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// IPv6 address - find matching brace
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IPv6Addr = true;
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size_t closing_brace = uphp.find(']');
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host = uphp.substr(1, closing_brace - 1);
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// continue by finding port, if any
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size_t colon = uphp.find(':', closing_brace);
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if (colon == std::string::npos){
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// no port. Assume default
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port = "";
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}else{
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// we have a port number, read it
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port = uphp.substr(colon + 1);
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if (!is_numeric(port.c_str())){
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host += ":" + port;
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port = "";
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}
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}
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}else{
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//"normal" host - first find port, if any
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size_t colon = uphp.rfind(':');
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if (colon == std::string::npos){
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// no port. Assume default
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port = "";
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host = uphp;
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}else{
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// we have a port number, read it
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port = uphp.substr(colon + 1);
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host = uphp.substr(0, colon);
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if (!is_numeric(port.c_str())){
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IPv6Addr = true;
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host += ":" + port;
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port = "";
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}
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}
|
||||
}
|
||||
// if the host is numeric, assume it is a port, instead
|
||||
if (host.size() && is_numeric(host.c_str())){
|
||||
port = host;
|
||||
host = "";
|
||||
}
|
||||
EXTREME_MSG("URL: %s", getUrl().c_str());
|
||||
}
|
||||
|
||||
/// Returns the port in numeric format
|
||||
uint32_t HTTP::URL::getPort() const{
|
||||
if (!port.size()){return getDefaultPort();}
|
||||
return atoi(port.c_str());
|
||||
}
|
||||
|
||||
/// Returns the default port for the protocol in numeric format
|
||||
uint32_t HTTP::URL::getDefaultPort() const{
|
||||
if (protocol == "http"){return 80;}
|
||||
if (protocol == "https"){return 443;}
|
||||
if (protocol == "rtmp"){return 1935;}
|
||||
if (protocol == "rtmps"){return 443;}
|
||||
if (protocol == "dtsc"){return 4200;}
|
||||
if (protocol == "rtsp"){return 554;}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/// Returns the file extension of the URL, or an empty string if none.
|
||||
std::string HTTP::URL::getExt() const{
|
||||
if (path.rfind('.') == std::string::npos){
|
||||
return "";
|
||||
}
|
||||
return path.substr(path.rfind('.')+1);
|
||||
}
|
||||
|
||||
/// Returns the full URL in string format
|
||||
std::string HTTP::URL::getUrl() const{
|
||||
std::string ret;
|
||||
if (protocol.size()){
|
||||
ret = protocol + "://";
|
||||
}else{
|
||||
ret = "//";
|
||||
}
|
||||
if (user.size() || pass.size()){
|
||||
ret += Encodings::URL::encode(user) + ":" + Encodings::URL::encode(pass) + "@";
|
||||
}
|
||||
if (IPv6Addr){
|
||||
ret += "[" + host + "]";
|
||||
}else{
|
||||
ret += host;
|
||||
}
|
||||
if (port.size() && getPort() != getDefaultPort()){ret += ":" + port;}
|
||||
ret += "/";
|
||||
if (path.size()){ret += Encodings::URL::encode(path, "/:=@[]");}
|
||||
if (args.size()){ret += "?" + args;}
|
||||
if (frag.size()){ret += "#" + Encodings::URL::encode(frag, "/:=@[]#?&");}
|
||||
return ret;
|
||||
}
|
||||
|
||||
/// Returns the full file path, in case this is a local file URI
|
||||
std::string HTTP::URL::getFilePath() const{
|
||||
return "/"+path;
|
||||
}
|
||||
|
||||
/// Returns the URL in string format without auth and frag
|
||||
std::string HTTP::URL::getProxyUrl() const{
|
||||
std::string ret;
|
||||
if (protocol.size()){
|
||||
ret = protocol + "://";
|
||||
}else{
|
||||
ret = "//";
|
||||
}
|
||||
if (IPv6Addr){
|
||||
ret += "[" + host + "]";
|
||||
}else{
|
||||
ret += host;
|
||||
}
|
||||
if (port.size() && getPort() != getDefaultPort()){ret += ":" + port;}
|
||||
ret += "/";
|
||||
if (path.size()){ret += Encodings::URL::encode(path, "/:=@[]");}
|
||||
if (args.size()){ret += "?" + args;}
|
||||
return ret;
|
||||
}
|
||||
|
||||
/// Returns the URL in string format without args and frag
|
||||
std::string HTTP::URL::getBareUrl() const{
|
||||
std::string ret;
|
||||
if (protocol.size()){
|
||||
ret = protocol + "://";
|
||||
}else{
|
||||
ret = "//";
|
||||
}
|
||||
if (user.size() || pass.size()){
|
||||
ret += Encodings::URL::encode(user) + ":" + Encodings::URL::encode(pass) + "@";
|
||||
}
|
||||
if (IPv6Addr){
|
||||
ret += "[" + host + "]";
|
||||
}else{
|
||||
ret += host;
|
||||
}
|
||||
if (port.size() && getPort() != getDefaultPort()){ret += ":" + port;}
|
||||
ret += "/";
|
||||
if (path.size()){ret += Encodings::URL::encode(path, "/:=@[]");}
|
||||
return ret;
|
||||
}
|
||||
|
||||
/// Returns a URL object for the given link, resolved relative to the current URL object.
|
||||
HTTP::URL HTTP::URL::link(const std::string &l) const{
|
||||
// Full link
|
||||
if (l.find("://") < l.find('/') && l.find('/' != std::string::npos)){
|
||||
DONTEVEN_MSG("Full link: %s", l.c_str());
|
||||
return URL(l);
|
||||
}
|
||||
// Absolute link
|
||||
if (l[0] == '/'){
|
||||
DONTEVEN_MSG("Absolute link: %s", l.c_str());
|
||||
if (l.size() > 1 && l[1] == '/'){
|
||||
// Same-protocol full link
|
||||
return URL(protocol + ":" + l);
|
||||
}else{
|
||||
// Same-domain/port absolute link
|
||||
URL tmp = *this;
|
||||
tmp.args.clear();
|
||||
tmp.path = l.substr(1);
|
||||
// Abuse the fact that we don't check for arguments in getUrl()
|
||||
return URL(tmp.getUrl());
|
||||
}
|
||||
}
|
||||
// Relative link
|
||||
std::string tmpUrl = getBareUrl();
|
||||
size_t slashPos = tmpUrl.rfind('/');
|
||||
if (slashPos == std::string::npos){
|
||||
tmpUrl += "/";
|
||||
}else{
|
||||
tmpUrl.erase(slashPos + 1);
|
||||
}
|
||||
DONTEVEN_MSG("Relative link: %s+%s", tmpUrl.c_str(), l.c_str());
|
||||
return URL(tmpUrl + l);
|
||||
}
|
||||
|
||||
35
lib/url.h
Normal file
35
lib/url.h
Normal file
|
|
@ -0,0 +1,35 @@
|
|||
/// \file url.h
|
||||
/// Holds all headers for the HTTP::URL class.
|
||||
|
||||
#pragma once
|
||||
#include <stdlib.h>
|
||||
#include <string>
|
||||
|
||||
/// Holds all HTTP processing related code.
|
||||
namespace HTTP{
|
||||
|
||||
/// URL parsing class. Parses full URL into its subcomponents
|
||||
class URL{
|
||||
public:
|
||||
URL(const std::string &url = "");
|
||||
uint32_t getPort() const;
|
||||
uint32_t getDefaultPort() const;
|
||||
std::string getExt() const;
|
||||
std::string getUrl() const;
|
||||
std::string getFilePath() const;
|
||||
std::string getBareUrl() const;
|
||||
std::string getProxyUrl() const;
|
||||
std::string host; ///< Hostname or IP address of URL
|
||||
std::string protocol; ///< Protocol of URL
|
||||
std::string port; ///< Port of URL
|
||||
std::string path; ///< Path after the first slash (not inclusive) but before any question mark
|
||||
std::string args; ///< Everything after the question mark in the path, if it was present
|
||||
std::string frag; ///< Everything after the # in the path, if it was present
|
||||
std::string user; ///< Username, if it was present
|
||||
std::string pass; ///< Password, if it was present
|
||||
URL link(const std::string &l) const;
|
||||
bool IPv6Addr;
|
||||
};
|
||||
|
||||
}// namespace HTTP
|
||||
|
||||
|
|
@ -3,6 +3,7 @@
|
|||
#include <mist/stream.h>
|
||||
#include <mist/encode.h>
|
||||
#include <mist/langcodes.h>
|
||||
#include <mist/url.h>
|
||||
#include "flashPlayer.h"
|
||||
#include "oldFlashPlayer.h"
|
||||
#include <mist/websocket.h>
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue