fix http reader bug, support infinite chunkted. 2.0.209

@@ -338,6 +338,7 @@ Remark:
 
 ## History
 
+* v2.0, 2016-01-13, fix http reader bug, support infinite chunkted. 2.0.209
 * v2.0, 2016-01-09, merge [#559][pr #559] fix memory leak bug. 2.0.208
 * v2.0, 2016-01-09, merge [#558][pr #558] add tcUrl for on_publish.
 * v2.0, 2016-01-05, add keyword XCORE for coredump to identify the version. 2.0.207

@@ -950,8 +950,12 @@ int SrsHttpApi::process_request(ISrsHttpResponseWriter* w, ISrsHttpMessage* r)
 {
     int ret = ERROR_SUCCESS;
     
-    srs_trace("HTTP %s %s, content-length=%"PRId64"", 
-        r->method_str().c_str(), r->url().c_str(), r->content_length());
+    SrsHttpMessage* hm = dynamic_cast<SrsHttpMessage*>(r);
+    srs_assert(hm);
+    
+    srs_trace("HTTP API %s %s, content-length=%"PRId64", chunked=%d/%d",
+        r->method_str().c_str(), r->url().c_str(), r->content_length(),
+        hm->is_chunked(), hm->is_infinite_chunked());
     
     // method is OPTIONS and enable crossdomain, required crossdomain header.
     if (r->is_http_options() && _srs_config->get_http_api_crossdomain()) {

@@ -55,6 +55,7 @@ using namespace std;
 #include <srs_app_http_static.hpp>
 #include <srs_app_http_stream.hpp>
 #include <srs_app_http_api.hpp>
+#include <srs_app_utility.hpp>
 
 #endif
 
@@ -347,15 +348,29 @@ int SrsHttpResponseReader::read(char* data, int nb_data, int* nb_read)
     }
     
     // read by specified content-length
-    int max = (int)owner->content_length() - (int)nb_total_read;
-    if (max <= 0) {
-        is_eof = true;
-        return ret;
+    if (owner->content_length() != -1) {
+        int max = (int)owner->content_length() - (int)nb_total_read;
+        if (max <= 0) {
+            is_eof = true;
+            return ret;
+        }
+        
+        // change the max to read.
+        nb_data = srs_min(nb_data, max);
+        return read_specified(data, nb_data, nb_read);
+    }
+    
+    // infinite chunked mode, directly read.
+    if (owner->is_infinite_chunked()) {
+        srs_assert(!owner->is_chunked() && owner->content_length() == -1);
+        return read_specified(data, nb_data, nb_read);
     }
     
-    // change the max to read.
-    nb_data = srs_min(nb_data, max);
-    return read_specified(data, nb_data, nb_read);
+    // infinite chunked mode, but user not set it,
+    // we think there is no data left.
+    is_eof = true;
+    
+    return ret;
 }
 
 int SrsHttpResponseReader::read_chunked(char* data, int nb_data, int* nb_read)
@@ -480,8 +495,8 @@ int SrsHttpResponseReader::read_specified(char* data, int nb_data, int* nb_read)
     // increase the total read to determine whether EOF.
     nb_total_read += nb_bytes;
     
-    // for not chunked
-    if (!owner->is_chunked()) {
+    // for not chunked and specified content length.
+    if (!owner->is_chunked() && owner->content_length() != -1) {
         // when read completed, eof.
         if (nb_total_read >= (int)owner->content_length()) {
             is_eof = true;
@@ -495,6 +510,7 @@ SrsHttpMessage::SrsHttpMessage(SrsStSocket* io, SrsConnection* c) : ISrsHttpMess
 {
     conn = c;
     chunked = false;
+    infinite_chunked = false;
     keep_alive = true;
     _uri = new SrsHttpUri();
     _body = new SrsHttpResponseReader(this, io);
@@ -532,11 +548,10 @@ int SrsHttpMessage::update(string url, http_parser* header, SrsFastBuffer* body,
     // parse uri from url.
     std::string host = get_request_header("Host");
     
-    // donot parse the empty host for uri,
-    // for example, the response contains no host,
-    // ignore it is ok.
+    // use server public ip when no host specified.
+    // to make telnet happy.
     if (host.empty()) {
-        return ret;
+        host= srs_get_public_internet_address();
     }
     
     // parse uri to schema/server:port/path?query
@@ -674,6 +689,11 @@ bool SrsHttpMessage::is_keep_alive()
     return keep_alive;
 }
 
+bool SrsHttpMessage::is_infinite_chunked()
+{
+    return infinite_chunked;
+}
+
 string SrsHttpMessage::uri()
 {
     std::string uri = _uri->get_schema();
@@ -728,6 +748,25 @@ int SrsHttpMessage::parse_rest_id(string pattern)
     return -1;
 }
 
+int SrsHttpMessage::enter_infinite_chunked()
+{
+    int ret = ERROR_SUCCESS;
+    
+    if (infinite_chunked) {
+        return ret;
+    }
+    
+    if (is_chunked() || content_length() != -1) {
+        ret = ERROR_HTTP_DATA_INVALID;
+        srs_error("infinite chunkted not supported in specified codec. ret=%d", ret);
+        return ret;
+    }
+    
+    infinite_chunked = true;
+    
+    return ret;
+}
+
 int SrsHttpMessage::body_read_all(string& body)
 {
     int ret = ERROR_SUCCESS;

@@ -156,9 +156,6 @@ typedef std::pair<std::string, std::string> SrsHttpHeaderField;
 // The field semantics differ slightly between client and server
 // usage. In addition to the notes on the fields below, see the
 // documentation for Request.Write and RoundTripper.
-/**
- * the http message, request or response.
- */
 class SrsHttpMessage : public ISrsHttpMessage
 {
 private:
@@ -184,6 +181,10 @@ private:
      */
     bool chunked;
     /**
+     * whether the body is infinite chunked.
+     */
+     bool infinite_chunked;
+    /**
      * whether the request indicates should keep alive
      * for the http connection.
      */
@@ -236,6 +237,11 @@ public:
      */
     virtual bool is_chunked();
     /**
+     * whether body is infinite chunked encoding.
+     * @remark set by enter_infinite_chunked.
+     */
+     virtual bool is_infinite_chunked();
+    /**
      * whether should keep the connection alive.
      */
     virtual bool is_keep_alive();
@@ -256,6 +262,8 @@ public:
      */
     virtual int parse_rest_id(std::string pattern);
 public:
+    virtual int enter_infinite_chunked();
+public:
     /**
      * read body to string.
      * @remark for small http body.

@@ -485,7 +485,7 @@ void srs_update_proc_stat()
     static int user_hz = 0;
     if (user_hz <= 0) {
         user_hz = (int)sysconf(_SC_CLK_TCK);
-        srs_trace("USER_HZ=%d", user_hz);
+        srs_info("USER_HZ=%d", user_hz);
         srs_assert(user_hz > 0);
     }
     
@@ -1279,6 +1279,66 @@ vector<string>& srs_get_local_ipv4_ips()
     return _srs_system_ipv4_ips;
 }
 
+std::string _public_internet_address;
+
+string srs_get_public_internet_address()
+{
+    if (!_public_internet_address.empty()) {
+        return _public_internet_address;
+    }
+    
+    std::vector<std::string>& ips = srs_get_local_ipv4_ips();
+    
+    // find the best match public address.
+    for (int i = 0; i < (int)ips.size(); i++) {
+        std::string ip = ips[i];
+        in_addr_t addr = inet_addr(ip.c_str());
+        u_int32_t addr_h = ntohl(addr);
+        // lo, 127.0.0.0-127.0.0.1
+        if (addr_h >= 0x7f000000 && addr_h <= 0x7f000001) {
+            srs_trace("ignore private address: %s", ip.c_str());
+            continue;
+        }
+        // Class A 10.0.0.0-10.255.255.255
+        if (addr_h >= 0x0a000000 && addr_h <= 0x0affffff) {
+            srs_trace("ignore private address: %s", ip.c_str());
+            continue;
+        }
+        // Class B 172.16.0.0-172.31.255.255
+        if (addr_h >= 0xac100000 && addr_h <= 0xac1fffff) {
+            srs_trace("ignore private address: %s", ip.c_str());
+            continue;
+        }
+        // Class C 192.168.0.0-192.168.255.255
+        if (addr_h >= 0xc0a80000 && addr_h <= 0xc0a8ffff) {
+            srs_trace("ignore private address: %s", ip.c_str());
+            continue;
+        }
+        srs_warn("use public address as ip: %s", ip.c_str());
+        
+        _public_internet_address = ip;
+        return ip;
+    }
+    
+    // no public address, use private address.
+    for (int i = 0; i < (int)ips.size(); i++) {
+        std::string ip = ips[i];
+        in_addr_t addr = inet_addr(ip.c_str());
+        u_int32_t addr_h = ntohl(addr);
+        // lo, 127.0.0.0-127.0.0.1
+        if (addr_h >= 0x7f000000 && addr_h <= 0x7f000001) {
+            srs_trace("ignore private address: %s", ip.c_str());
+            continue;
+        }
+        srs_warn("use private address as ip: %s", ip.c_str());
+        
+        _public_internet_address = ip;
+        return ip;
+    }
+    
+    return "";
+}
+
 string srs_get_local_ip(int fd)
 {
     std::string ip;

@@ -660,6 +660,9 @@ extern void srs_update_rtmp_server(int nb_conn, SrsKbps* kbps);
 // get local ip, fill to @param ips
 extern std::vector<std::string>& srs_get_local_ipv4_ips();
 
+// get local public ip, empty string if no public internet address found.
+extern std::string srs_get_public_internet_address();
+
 // get local or peer ip.
 // where local ip is the server ip which client connected.
 extern std::string srs_get_local_ip(int fd);

@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // current release version
 #define VERSION_MAJOR       2
 #define VERSION_MINOR       0
-#define VERSION_REVISION    208
+#define VERSION_REVISION    209
 
 // generated by configure, only macros.
 #include <srs_auto_headers.hpp>

@@ -231,6 +231,12 @@ public:
      * @param nb_data, the max size of data buffer.
      * @param nb_read, the actual read size of bytes. NULL to ignore.
      * @remark when eof(), return error.
+     * @remark for some server, the content-length not specified and not chunked,
+     *      which is actually the infinite chunked encoding, which after http header 
+     *      is http response data, it's ok for browser. that is,
+     *      when user call this read, please ensure there is data to read(by content-length
+     *      or by chunked), because the sdk never know whether there is no data or 
+     *      infinite chunked.
      */
     virtual int read(char* data, int nb_data, int* nb_read) = 0;
 };
@@ -445,9 +451,19 @@ typedef std::pair<std::string, std::string> SrsHttpHeaderField;
 // The field semantics differ slightly between client and server
 // usage. In addition to the notes on the fields below, see the
 // documentation for Request.Write and RoundTripper.
-/**
- * the http message, request or response.
- */
+//
+// There are some modes to determine the length of body:
+//      1. content-length and chunked.
+//      2. user confirmed infinite chunked.
+//      3. no body or user not confirmed infinite chunked.
+// For example:
+//      ISrsHttpMessage* r = ...;
+//      while (!r->eof()) r->read(); // read in mode 1 or 3.
+// For some server, we can confirm the body is infinite chunked:
+//      ISrsHttpMessage* r = ...;
+//      r->enter_infinite_chunked();
+//      while (!r->eof()) r->read(); // read in mode 2
+// @rmark for mode 2, the infinite chunked, all left data is body.
 class ISrsHttpMessage
 {
 private:
@@ -503,6 +519,12 @@ public:
     virtual int parse_rest_id(std::string pattern) = 0;
 public:
     /**
+     * the left all data is chunked body, the infinite chunked mode,
+     * which is chunked encoding without chunked header.
+     * @remark error when message is in chunked or content-length specified.
+     */
+    virtual int enter_infinite_chunked() = 0;
+    /**
      * read body to string.
      * @remark for small http body.
      */