Add virtual hosts example

.gitignore

@@ -4,3 +4,5 @@ simple_server
 simple_server.exe
 proxy
 proxy.exe
+virtual_hosts
+virtual_hosts.exe

Makefile

@@ -17,7 +17,7 @@ endif
 
 .PHONY: all clean example
 
-all: chttp.c chttp.h simple_client$(EXT) simple_server$(EXT) proxy$(EXT)
+all: chttp.c chttp.h simple_client$(EXT) simple_server$(EXT) proxy$(EXT) virtual_hosts$(EXT)
 
 chttp.c chttp.h: $(wildcard src/*.c src/*.h) misc/amalg.py Makefile
 	python misc/amalg.py

chttp.c

@@ -1444,7 +1444,7 @@ bool http_match_host(HTTP_Request *req, HTTP_String domain, int port)
     }
 
     HTTP_String host = req->headers[idx].value;
-    return http_streq(host, domain);
+    return http_streqcase(host, domain);
 }
 
 

examples/virtual_hosts.c

@@ -0,0 +1,76 @@
+#include <stddef.h>
+
+#include "../chttp.h"
+
+int main(void)
+{
+    // To test this program you need to add the following
+    // lines to your hosts file:
+    //
+    //   127.0.0.1    websiteA.com
+    //   127.0.0.1    websiteB.com
+    //   127.0.0.1    websiteC.com
+    //
+    // That you can find at /etc/hosts on Linux and
+    // C:\Windows\System32\drivers\etc\hosts on Windows
+
+    int ret;
+
+    HTTP_Server server;
+    ret = http_server_init(&server);
+    if (ret < 0) {
+        fprintf(stderr, "Couldn't initialize server (%s)\n", http_strerror(ret));
+        return -1;
+    }
+
+    http_server_set_reuse_addr(&server, true);
+    http_server_set_trace_bytes(&server, true);
+
+    HTTP_String local_addr = HTTP_STR("127.0.0.1");
+    uint16_t    local_port = 8080;
+    ret = http_server_listen_tcp(&server, local_addr, local_port);
+    if (ret < 0) {
+        fprintf(stderr, "Couldn't start listening (%s)\n", http_strerror(ret));
+        return -1;
+    }
+
+    // The following loop will serve responses for
+    //
+    //   http://websiteA.com:8080/
+    //   http://websiteB.com:8080/
+    //   http://websiteC.com:8080/
+    //
+    // If a host name is missing or there isn't one
+    //
+    //   http://127.0.0.1:8080/
+    //
+    // The websiteA.com handler is used
+
+    for (;;) {
+
+        HTTP_Request *req;
+        HTTP_ResponseBuilder builder;
+        http_server_wait_request(&server, &req, &builder);
+
+        if (http_match_host(req, HTTP_STR("websiteB.com"), local_port)) {
+            // Website B
+            http_response_builder_status(builder, 200);
+            http_response_builder_body(builder, HTTP_STR("Hello from websiteB.com!"));
+            http_response_builder_send(builder);
+
+        } else if (http_match_host(req, HTTP_STR("websiteC.com"), local_port)) {
+            // Website C
+            http_response_builder_status(builder, 200);
+            http_response_builder_body(builder, HTTP_STR("Hello from websiteC.com!"));
+            http_response_builder_send(builder);
+        } else {
+            // Serve websiteA by default
+            http_response_builder_status(builder, 200);
+            http_response_builder_body(builder, HTTP_STR("Hello from websiteA.com!"));
+            http_response_builder_send(builder);
+        }
+    }
+
+    http_server_free(&server);
+    return 0;
+}

src/parse.c

@@ -1318,7 +1318,7 @@ bool http_match_host(HTTP_Request *req, HTTP_String domain, int port)
     }
 
     HTTP_String host = req->headers[idx].value;
-    return http_streq(host, domain);
+    return http_streqcase(host, domain);
 }