-#include <string.h>
+#include <stddef.h>
#include <string>
#include "httpinput.h"
#include "input.h"
#include "state.pb.h"
+#include "udpinput.h"
using namespace std;
+namespace {
+
+// Does not support passwords, only user:host, since this is really only used
+// to parse VLC's udp://source@multicastgroup:1234/ syntax (we do not support
+// even basic auth).
+void split_user_host(const string &user_host, string *user, string *host)
+{
+ size_t split = user_host.find("@");
+ if (split == string::npos) {
+ user->clear();
+ *host = user_host;
+ } else {
+ *user = string(user_host.begin(), user_host.begin() + split);
+ *host = string(user_host.begin() + split + 1, user_host.end());
+ }
+}
+
+} // namespace
+
// Extremely rudimentary URL parsing.
-bool parse_url(const string &url, string *protocol, string *host, string *port, string *path)
+bool parse_url(const string &url, string *protocol, string *user, string *host, string *port, string *path)
{
- if (url.find("http://") != 0) {
+ size_t split = url.find("://");
+ if (split == string::npos) {
return false;
}
+ *protocol = string(url.begin(), url.begin() + split);
- *protocol = "http";
-
- string rest = url.substr(strlen("http://"));
- size_t split = rest.find_first_of(":/");
- if (split == string::npos) {
+ string rest = string(url.begin() + split + 3, url.end());
+
+ // Split at the first slash, or the first colon that's not within [].
+ bool within_brackets = false;
+ for (split = 0; split < rest.size(); ++split) {
+ if (rest[split] == '[') {
+ if (within_brackets) {
+ // Can't nest brackets.
+ return false;
+ }
+ within_brackets = true;
+ } else if (rest[split] == ']') {
+ if (!within_brackets) {
+ // ] without matching [.
+ return false;
+ }
+ within_brackets = false;
+ } else if (rest[split] == '/') {
+ break;
+ } else if (rest[split] == ':' && !within_brackets) {
+ break;
+ }
+ }
+
+ if (split == rest.size()) {
// http://foo
- *host = rest;
- *port = "http";
+ split_user_host(rest, user, host);
+ *port = *protocol;
*path = "/";
return true;
}
- *host = string(rest.begin(), rest.begin() + split);
+ split_user_host(string(rest.begin(), rest.begin() + split), user, host);
char ch = rest[split]; // Colon or slash.
rest = string(rest.begin() + split + 1, rest.end());
}
// http://foo/bar
- *port = "http";
- *path = rest;
+ *port = *protocol;
+ *path = "/" + rest;
return true;
}
-Input *create_input(const std::string &stream_id, const std::string &url)
+Input *create_input(const string &url, Input::Encoding encoding)
{
- string protocol, host, port, path;
- if (!parse_url(url, &protocol, &host, &port, &path)) {
- return NULL;
+ string protocol, user, host, port, path;
+ if (!parse_url(url, &protocol, &user, &host, &port, &path)) {
+ return nullptr;
}
if (protocol == "http") {
- return new HTTPInput(stream_id, url);
+ return new HTTPInput(url, encoding);
+ }
+ if (protocol == "udp") {
+ // encoding is ignored; it's never Metacube.
+ return new UDPInput(url);
}
- return NULL;
+ return nullptr;
}
Input *create_input(const InputProto &serialized)
{
- string protocol, host, port, path;
- if (!parse_url(serialized.url(), &protocol, &host, &port, &path)) {
- return NULL;
+ string protocol, user, host, port, path;
+ if (!parse_url(serialized.url(), &protocol, &user, &host, &port, &path)) {
+ return nullptr;
}
if (protocol == "http") {
return new HTTPInput(serialized);
}
- return NULL;
+ if (protocol == "udp") {
+ return new UDPInput(serialized);
+ }
+ return nullptr;
}
Input::~Input() {}