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-rw-r--r--src/inputStream_http.c507
1 files changed, 507 insertions, 0 deletions
diff --git a/src/inputStream_http.c b/src/inputStream_http.c
new file mode 100644
index 000000000..7be2bc38c
--- /dev/null
+++ b/src/inputStream_http.c
@@ -0,0 +1,507 @@
+/* the Music Player Daemon (MPD)
+ * (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu)
+ * This project's homepage is: http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "inputStream_http.h"
+
+#include "utils.h"
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <sys/param.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+
+#define HTTP_CONN_STATE_CLOSED 0
+#define HTTP_CONN_STATE_INIT 1
+#define HTTP_CONN_STATE_HELLO 2
+#define HTTP_CONN_STATE_OPEN 3
+#define HTTP_CONN_STATE_REOPEN 4
+
+#define HTTP_BUFFER_SIZE 524289
+
+#define HTTP_REDIRECT_MAX 10
+
+typedef struct _InputStreemHTTPData {
+ char * host;
+ char * path;
+ int port;
+ int sock;
+ int connState;
+ char buffer[HTTP_BUFFER_SIZE];
+ int buflen;
+ int canSeek;
+ int timesRedirected;
+ int icyMetaint;
+} InputStreamHTTPData;
+
+static InputStreamHTTPData * newInputStreamHTTPData() {
+ InputStreamHTTPData * ret = malloc(sizeof(InputStreamHTTPData));
+
+ ret->host = NULL;
+ ret->path = NULL;
+ ret->port = 80;
+ ret->connState = HTTP_CONN_STATE_CLOSED;
+ ret->canSeek = 0;
+ ret->timesRedirected = 0;
+
+ return ret;
+}
+
+static void freeInputStreamHTTPData(InputStreamHTTPData * data) {
+ if(data->host) free(data->host);
+ if(data->path) free(data->path);
+
+ free(data);
+}
+
+static int parseUrl(InputStreamHTTPData * data, char * url) {
+ char * temp;
+ char * colon;
+ char * slash;
+ int len;
+
+ if(strncmp("http://",url,strlen("http://"))!=0) return -1;
+
+ temp = url+strlen("http://");
+
+ slash = strchr(temp, '/');
+ colon = strchr(temp, ':');
+
+ if(slash && colon && slash <= colon) return -1;
+
+ /* fetch the host portion */
+ if(colon) len = colon-temp+1;
+ else if(slash) len = slash-temp+1;
+ else len = strlen(temp)+1;
+
+ if(len<=1) return -1;
+
+ data->host = malloc(len);
+ strncpy(data->host,temp,len-1);
+ data->host[len-1] = '\0';
+
+ /* fetch the port */
+ if(colon && (!slash || slash != colon+1)) {
+ char * test;
+ data->port = strtol(colon+1,&test,10);
+
+ if(data->port <= 0 || (*test != '\0' && *test != '/')) {
+ return -1;
+ }
+ }
+
+ /* fetch the path */
+ data->path = strdup(slash ? slash : "/");
+
+ return 0;
+}
+
+static int initHTTPConnection(InputStream * inStream) {
+ struct hostent * he;
+ struct sockaddr * dest;
+ socklen_t destlen;
+ struct sockaddr_in sin;
+ InputStreamHTTPData * data = (InputStreamHTTPData *)inStream->data;
+ int flags;
+ int ret;
+#ifdef HAVE_IPV6
+ struct sockaddr_in6 sin6;
+#endif
+
+ if(!(he = gethostbyname(data->host))) {
+ return -1;
+ }
+
+ memset(&sin,0,sizeof(struct sockaddr_in));
+ sin.sin_family = AF_INET;
+ sin.sin_port = htons(data->port);
+#ifdef HAVE_IPV6
+ memset(&sin6,0,sizeof(struct sockaddr_in6));
+ sin6.sin6_family = AF_INET6;
+ sin6.sin6_port = sin.sin_port;
+#endif
+
+ switch(he->h_addrtype) {
+ case AF_INET:
+ memcpy((char *)&sin.sin_addr.s_addr,(char *)he->h_addr,
+ he->h_length);
+ dest = (struct sockaddr *)&sin;
+ destlen = sizeof(struct sockaddr_in);
+ break;
+#ifdef HAVE_IPV6
+ case AF_INET6:
+ if(!ipv6Supported()) {
+ return -1;
+ }
+ memcpy((char *)&sin6.sin6_addr.s6_addr,(char *)he->h_addr,
+ he->h_length);
+ dest = (struct sockaddr *)&sin6;
+ destlen = sizeof(struct sockaddr_in6);
+ break;
+#endif
+ default:
+ return -1;
+ }
+
+ if((data->sock = socket(dest->sa_family,SOCK_STREAM,0)) < 0) {
+ return -1;
+ }
+
+ flags = fcntl(data->sock, F_GETFL, 0);
+ fcntl(data->sock, F_SETFL, flags | O_NONBLOCK);
+
+ ret = connect(data->sock,dest,destlen);
+ if(ret < 0 && errno!=EINPROGRESS) {
+ close(data->sock);
+ return -1;
+ }
+
+ data->connState = HTTP_CONN_STATE_INIT;
+
+ data->buflen = 0;
+
+ return 0;
+}
+
+static int finishHTTPInit(InputStream * inStream) {
+ InputStreamHTTPData * data = (InputStreamHTTPData *)inStream->data;
+ struct timeval tv;
+ fd_set writeSet;
+ fd_set errorSet;
+ int error;
+ int error_len = sizeof(int);
+ int ret;
+ char request[2049];
+
+ tv.tv_sec = 0;
+ tv.tv_usec = 0;
+
+ FD_ZERO(&writeSet);
+ FD_ZERO(&errorSet);
+ FD_SET(data->sock, &writeSet);
+ FD_SET(data->sock, &errorSet);
+
+ ret = select(data->sock+1, NULL, &writeSet, &errorSet, &tv);
+
+ if(ret == 0 || (ret < 0 && errno==EINTR)) return 0;
+
+ if(ret < 0) {
+ close(data->sock);
+ data->connState = HTTP_CONN_STATE_CLOSED;
+ return -1;
+ }
+
+ getsockopt(data->sock, SOL_SOCKET, SO_ERROR, &error, &error_len);
+ if(error) {
+ close(data->sock);
+ data->connState = HTTP_CONN_STATE_CLOSED;
+ return -1;
+ }
+
+ memset(request, 0, 2048);
+ snprintf(request, 2048, "GET %s HTTP/1.1\r\n"
+ "Host: %s\r\n"
+ "Connection: close\r\n"
+ "User-Agent: %s/%s\r\n"
+ "Range: bytes=%ld-\r\n"
+ "Icy-Metadata:1\r\n"
+ "\r\n",
+ data->path, data->host, "httpTest", "0.0.0",
+ inStream->offset);
+
+ ret = write(data->sock, request, strlen(request));
+ if(ret!=strlen(request)) {
+ close(data->sock);
+ data->connState = HTTP_CONN_STATE_CLOSED;
+ return -1;
+ }
+
+ data->connState = HTTP_CONN_STATE_HELLO;
+
+ return 0;
+}
+
+static int getHTTPHello(InputStream * inStream) {
+ InputStreamHTTPData * data = (InputStreamHTTPData *)inStream->data;
+ fd_set readSet;
+ struct timeval tv;
+ int ret;
+ char * needle;
+ char * cur = data->buffer;
+ int rc;
+ int readed;
+
+ FD_ZERO(&readSet);
+ FD_SET(data->sock, &readSet);
+
+ tv.tv_sec = 0;
+ tv.tv_usec = 0;
+
+ ret = select(data->sock+1,&readSet,NULL,NULL,&tv);
+
+ if(ret == 0 || (ret < 0 && errno==EINTR)) return 0;
+
+ if(ret < 0) {
+ data->connState = HTTP_CONN_STATE_CLOSED;
+ close(data->sock);
+ return -1;
+ }
+
+ if(data->buflen >= HTTP_BUFFER_SIZE-1) {
+ data->connState = HTTP_CONN_STATE_CLOSED;
+ close(data->sock);
+ return -1;
+ }
+
+ readed = recv(data->sock, data->buffer+data->buflen,
+ HTTP_BUFFER_SIZE-1-data->buflen, 0);
+
+ if(readed < 0 && (errno == EAGAIN || errno == EINTR)) return 0;
+
+ if(readed <= 0) {
+ data->connState = HTTP_CONN_STATE_CLOSED;
+ close(data->sock);
+ return -1;
+ }
+
+ data->buffer[data->buflen+readed] = '\0';
+ data->buflen += readed;
+
+ needle = strstr(data->buffer,"\r\n\r\n");
+
+ if(!needle) return 0;
+
+ if(0 == strncmp(cur, "HTTP/1.0 ", 9)) {
+ data->canSeek = 0;
+ rc = atoi(cur+9);
+ }
+ else if(0 == strncmp(cur, "HTTP/1.1 ", 9)) {
+ data->canSeek = 1;
+ rc = atoi(cur+9);
+ }
+ else if(0 == strncmp(cur, "ICY 200 OK", 10)) {
+ data->canSeek = 0;
+ rc = 200;
+ }
+ else if(0 == strncmp(cur, "ICY 400 Server Full", 19)) rc = 400;
+ else if(0 == strncmp(cur, "ICY 404", 7)) rc = 404;
+ else {
+ close(data->sock);
+ data->connState = HTTP_CONN_STATE_CLOSED;
+ return -1;
+ }
+
+ switch(rc) {
+ case 200:
+ case 206:
+ break;
+ case 301:
+ case 302:
+ cur = strstr(cur, "Location: ");
+ if(cur) {
+ char * url;
+ int curlen = 0;
+ cur+= strlen("Location: ");
+ while(*(cur+curlen)!='\0' && *(cur+curlen)!='\r') {
+ curlen++;
+ }
+ url = malloc(curlen+1);
+ memcpy(url,cur,curlen);
+ url[curlen] = '\0';
+ ret = parseUrl(data,url);
+ free(url);
+ if(ret == 0 && data->timesRedirected <
+ HTTP_REDIRECT_MAX)
+ {
+ data->timesRedirected++;
+ close(data->sock);
+ data->connState = HTTP_CONN_STATE_REOPEN;
+ data->buflen = 0;
+ return 0;
+ }
+ }
+ case 404:
+ case 400:
+ case 401:
+ default:
+ close(data->sock);
+ data->connState = HTTP_CONN_STATE_CLOSED;
+ data->buflen = 0;
+ return -1;
+ }
+
+ cur = strstr(data->buffer, "\r\nContent-Length: ");
+ if(cur) {
+ if(!inStream->size) inStream->size = atol(cur+18);
+ }
+ else data->canSeek = 0;
+
+ cur = strstr(data->buffer, "\r\nicy-metaint:");
+ if(cur) {
+ data->icyMetaint = atoi(cur+14);
+ }
+ else data->icyMetaint = 0;
+
+ needle += 4; /* 4 == strlen("\r\n\r\n") */
+ memmove(data->buffer, needle, data->buffer+data->buflen-needle);
+ data->buflen -= data->buffer+data->buflen-needle;
+
+ data->connState = HTTP_CONN_STATE_OPEN;
+
+ return 0;
+}
+
+int inputStream_httpOpen(InputStream * inStream, char * url) {
+ InputStreamHTTPData * data = newInputStreamHTTPData();
+
+ inStream->data = data;
+
+ if(parseUrl(data,url) < 0) {
+ freeInputStreamHTTPData(data);
+ return -1;
+ }
+
+ if(initHTTPConnection(inStream) < 0) {
+ freeInputStreamHTTPData(data);
+ return -1;
+ }
+
+ inStream->seekFunc = inputStream_httpSeek;
+ inStream->closeFunc = inputStream_httpClose;
+ inStream->readFunc = inputStream_httpRead;
+ inStream->atEOFFunc = inputStream_httpAtEOF;
+
+ inStream->offset = 0;
+ inStream->size = 0;
+ inStream->error = 0;
+
+ return 0;
+}
+
+int inputStream_httpSeek(InputStream * inStream, long offset, int whence) {
+ return -1;
+}
+
+size_t inputStream_httpRead(InputStream * inStream, void * ptr, size_t size,
+ size_t nmemb)
+{
+ InputStreamHTTPData * data = (InputStreamHTTPData *)inStream->data;
+ int readed = 0;
+ int inlen = size*nmemb;
+ fd_set readSet;
+ struct timeval tv;
+ int ret;
+
+ if(data->connState == HTTP_CONN_STATE_REOPEN) {
+ if(initHTTPConnection(inStream) < 0) return 0;
+ }
+
+ if(data->connState == HTTP_CONN_STATE_INIT) {
+ if(finishHTTPInit(inStream) < 0) return 0;
+ }
+
+ if(data->connState == HTTP_CONN_STATE_HELLO) {
+ if(getHTTPHello(inStream) < 0) return 0;
+ }
+
+ switch(data->connState) {
+ case HTTP_CONN_STATE_OPEN:
+ case HTTP_CONN_STATE_CLOSED:
+ break;
+ default:
+ return 0;
+ }
+
+ if(data->connState == HTTP_CONN_STATE_OPEN &&
+ data->buflen < HTTP_BUFFER_SIZE-1)
+ {
+ FD_ZERO(&readSet);
+ FD_SET(data->sock, &readSet);
+
+ tv.tv_sec = 0;
+ tv.tv_usec = 0;
+
+ ret = select(data->sock+1,&readSet,NULL,NULL,&tv);
+ if(ret == 0 || (ret < 0 && errno == EINTR)) ret = 0;
+ else if(ret < 0) {
+ data->connState = HTTP_CONN_STATE_CLOSED;
+ close(data->sock);
+ return 0;
+ }
+
+ if(ret == 1) {
+ readed = recv(data->sock,
+ data->buffer+data->buflen,
+ HTTP_BUFFER_SIZE-1-data->buflen, 0);
+
+ if(readed < 0 && (errno == EAGAIN ||
+ errno == EINTR))
+ {
+ readed = 0;
+ }
+ else if(readed <= 0) {
+ close(data->sock);
+ data->connState = HTTP_CONN_STATE_CLOSED;
+ }
+ else data->buflen += readed;
+ }
+ }
+
+ readed = inlen > data->buflen ? data->buflen : inlen;
+
+ memcpy(ptr, data->buffer, readed);
+ data->buflen -= readed;
+ memmove(data->buffer, data->buffer+readed, data->buflen);
+
+ inStream->offset = readed;
+
+ return readed;
+}
+
+int inputStream_httpClose(InputStream * inStream) {
+ InputStreamHTTPData * data = (InputStreamHTTPData *)inStream->data;
+
+ switch(data->connState) {
+ case HTTP_CONN_STATE_CLOSED:
+ break;
+ default:
+ close(data->sock);
+ }
+
+ freeInputStreamHTTPData(data);
+
+ return 0;
+}
+
+int inputStream_httpAtEOF(InputStream * inStream) {
+ InputStreamHTTPData * data = (InputStreamHTTPData *)inStream->data;
+ switch(data->connState) {
+ case HTTP_CONN_STATE_CLOSED:
+ if(data->buflen == 0) return 1;
+ default:
+ return 0;
+ }
+}
+/* vim:set shiftwidth=8 tabstop=8 expandtab: */
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