--- /dev/null
+/*
+
+ silchttpserver.c
+
+ Author: Pekka Riikonen <priikone@silcnet.org>
+
+ Copyright (C) 2006 Pekka Riikonen
+
+ 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; version 2 of the License.
+
+ 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.
+
+*/
+
+#include "silc.h"
+#include "silchttpserver.h"
+
+/************************** Types and definitions ***************************/
+
+#define SILC_HTTP_SERVER_TIMEOUT 120 /* Connection timeout */
+#define SILC_HTTP_SERVER_CONNS 2 /* Default number of connections */
+#define SILC_HTTP_SERVER_BUFLEN 1024 /* Default data buffer length */
+#define SILC_HTTP_SERVER_HEADER "HTTP/1.1 200 OK\r\nServer: SILCHTTP/1.0\r\n"
+
+/* HTTP server context */
+struct SilcHttpServerStruct {
+ SilcNetListener listener; /* Server listener */
+ SilcSchedule schedule; /* Scheduler */
+ SilcList allconns; /* All connections */
+ SilcList conns; /* Connection free list */
+ SilcHttpServerCallback callback; /* Requset callback */
+ void *context; /* Request callback context */
+};
+
+/* HTTP connection context */
+struct SilcHttpConnectionStruct {
+ struct SilcHttpConnectionStruct *next;
+ SilcHttpServer httpd; /* Server */
+ SilcStream stream; /* Connection stream */
+ SilcBuffer inbuf; /* Read data buffer */
+ SilcBuffer outbuf; /* Write data buffer */
+ SilcInt64 touched; /* Time last connection was touched */
+ SilcMime curheaders; /* HTTP request headers */
+ SilcMime headers; /* HTTP reply headers */
+ unsigned int keepalive : 1; /* Keep alive */
+};
+
+/************************ Static utility functions **************************/
+
+/* Close HTTP connection */
+
+static void silc_http_server_close_connection(SilcHttpConnection conn)
+{
+ if (conn->headers) {
+ silc_mime_free(conn->headers);
+ conn->headers = NULL;
+ }
+ if (conn->curheaders) {
+ silc_mime_free(conn->curheaders);
+ conn->curheaders = NULL;
+ }
+ silc_buffer_clear(conn->inbuf);
+ silc_buffer_clear(conn->outbuf);
+ silc_buffer_reset(conn->inbuf);
+ silc_buffer_reset(conn->outbuf);
+
+ if (conn->keepalive)
+ return;
+
+ SILC_LOG_DEBUG(("Closing HTTP connection"));
+
+ silc_schedule_task_del_by_context(conn->httpd->schedule, conn);
+ silc_stream_destroy(conn->stream);
+
+ /* Add to free list */
+ silc_list_add(conn->httpd->conns, conn);
+}
+
+/* Parse HTTP data */
+
+static SilcBool silc_http_server_parse(SilcHttpServer httpd,
+ SilcHttpConnection conn)
+{
+ SilcUInt32 data_len;
+ unsigned char *data, *tmp;
+ char *method, *uri;
+ const char *value;
+ SilcBufferStruct postdata;
+
+ SILC_LOG_DEBUG(("Parsing HTTP data"));
+ SILC_LOG_HEXDUMP(("HTTP data"), silc_buffer_data(conn->inbuf),
+ silc_buffer_len(conn->inbuf));
+
+ data = silc_buffer_data(conn->inbuf);
+ data_len = silc_buffer_len(conn->inbuf);
+
+ if (data_len < 3)
+ return TRUE;
+
+ tmp = memchr(data, '\n', data_len);
+ if (!tmp || tmp[-1] != '\r') {
+ if (data_len < SILC_HTTP_SERVER_BUFLEN)
+ return TRUE;
+ return FALSE;
+ }
+ *tmp = 0;
+
+ /* Get method */
+ if (strchr(data, ' '))
+ *strchr(data, ' ') = 0;
+ method = data;
+ SILC_LOG_DEBUG(("Method: '%s'", method));
+
+ /* Get URI */
+ tmp = memchr(data, '\0', data_len);
+ if (!tmp) {
+ if (data_len < SILC_HTTP_SERVER_BUFLEN)
+ return TRUE;
+ return FALSE;
+ }
+ tmp++;
+ if (strchr(tmp, ' '))
+ *strchr(tmp, ' ') = 0;
+ uri = tmp;
+ SILC_LOG_DEBUG(("URI: '%s'", uri));
+
+ /* Get HTTP headers */
+ tmp++;
+ tmp = memchr(tmp, '\n', data_len - (tmp - data)) + 1;
+ if (!tmp) {
+ if (data_len < SILC_HTTP_SERVER_BUFLEN)
+ return TRUE;
+ return FALSE;
+ }
+ conn->curheaders = silc_mime_decode(NULL, tmp, data_len - (tmp - data));
+ if (!conn->curheaders) {
+ if (data_len < SILC_HTTP_SERVER_BUFLEN)
+ return TRUE;
+ return FALSE;
+ }
+
+ /* Check for persistent connection */
+ value = silc_mime_get_field(conn->curheaders, "Keep-alive");
+ if (value)
+ conn->keepalive = TRUE;
+ value = silc_mime_get_field(conn->curheaders, "Connection");
+ if (value && !strcasecmp(value, "keep-alive"))
+ conn->keepalive = TRUE;
+ if (value && !strcasecmp(value, "close"))
+ conn->keepalive = FALSE;
+
+ /* Deliver request to caller */
+ if (!strcasecmp(method, "GET") || !strcasecmp(method, "HEAD")) {
+ /* Send request to caller */
+ httpd->callback(httpd, conn, uri, method, NULL, httpd->context);
+
+ } else if (!strcasecmp(method, "POST")) {
+ /* Get POST data */
+ tmp = (unsigned char *)silc_mime_get_data(conn->curheaders, &data_len);
+ if (!tmp) {
+ silc_mime_free(conn->curheaders);
+ conn->curheaders = NULL;
+ if (data_len < SILC_HTTP_SERVER_BUFLEN)
+ return TRUE;
+ return FALSE;
+ }
+ silc_buffer_set(&postdata, tmp, data_len);
+ SILC_LOG_HEXDUMP(("HTTP POST data"), tmp, data_len);
+
+ /* Send request to caller */
+ httpd->callback(httpd, conn, uri, method, &postdata, httpd->context);
+
+ } else {
+ /* XXX Send bad request error */
+ }
+
+ return TRUE;
+}
+
+/* Send HTTP data to connection */
+
+static SilcBool silc_http_server_send_internal(SilcHttpServer httpd,
+ SilcHttpConnection conn,
+ SilcBuffer data,
+ SilcBool headers)
+{
+ int ret;
+
+ SILC_LOG_HEXDUMP(("HTTP data"), silc_buffer_data(data),
+ silc_buffer_len(data));
+
+ /* Write the packet to the stream */
+ while (silc_buffer_len(data) > 0) {
+ ret = silc_stream_write(conn->stream, silc_buffer_data(data),
+ silc_buffer_len(data));
+ if (ret == 0 || ret == - 2)
+ return FALSE;
+
+ if (ret == -1) {
+ /* Cannot write now, write later. */
+ if (silc_buffer_len(data) - ret >= silc_buffer_taillen(conn->outbuf))
+ if (!silc_buffer_realloc(conn->outbuf,
+ silc_buffer_truelen(conn->outbuf) +
+ silc_buffer_len(data) - ret)) {
+ conn->keepalive = FALSE;
+ silc_http_server_close_connection(conn);
+ return FALSE;
+ }
+ silc_buffer_pull_tail(conn->outbuf, silc_buffer_len(data) - ret);
+ silc_buffer_put(conn->outbuf, silc_buffer_data(data) + ret,
+ silc_buffer_len(data) - ret);
+ return TRUE;
+ }
+
+ /* Wrote data */
+ silc_buffer_pull(data, ret);
+ }
+
+ if (!headers) {
+ /* Data sent, close connection */
+ SILC_LOG_DEBUG(("Data sent"));
+ silc_http_server_close_connection(conn);
+ }
+
+ return TRUE;
+}
+
+/* Allocate connection context */
+
+static SilcHttpConnection silc_http_server_alloc_connection(void)
+{
+ SilcHttpConnection conn;
+
+ conn = silc_calloc(1, sizeof(*conn));
+ if (!conn)
+ return NULL;
+
+ conn->inbuf = silc_buffer_alloc(SILC_HTTP_SERVER_BUFLEN);
+ if (!conn->inbuf) {
+ silc_free(conn);
+ return NULL;
+ }
+
+ conn->outbuf = silc_buffer_alloc(SILC_HTTP_SERVER_BUFLEN);
+ if (!conn->outbuf) {
+ silc_buffer_free(conn->inbuf);
+ silc_free(conn);
+ return NULL;
+ }
+
+ silc_buffer_reset(conn->inbuf);
+ silc_buffer_reset(conn->outbuf);
+
+ return conn;
+}
+
+/* Check if connection has timedout */
+
+SILC_TASK_CALLBACK(silc_http_server_connection_timeout)
+{
+ SilcHttpConnection conn = context;
+ SilcInt64 curtime = silc_time();
+
+ if (curtime - conn->touched > SILC_HTTP_SERVER_TIMEOUT) {
+ SILC_LOG_DEBUG(("Connection timeout"));
+ conn->keepalive = FALSE;
+ silc_http_server_close_connection(conn);
+ return;
+ }
+
+ silc_schedule_task_add_timeout(conn->httpd->schedule,
+ silc_http_server_connection_timeout, conn,
+ SILC_HTTP_SERVER_TIMEOUT, 0);
+}
+
+/* Data I/O callback */
+
+static void silc_http_server_io(SilcStream stream, SilcStreamStatus status,
+ void *context)
+{
+ SilcHttpConnection conn = context;
+ SilcHttpServer httpd = conn->httpd;
+ int ret;
+
+ switch (status) {
+ case SILC_STREAM_CAN_READ:
+ SILC_LOG_DEBUG(("Read HTTP data"));
+
+ conn->touched = silc_time();
+
+ /* Make sure we have fair amount of free space in inbuf */
+ if (silc_buffer_taillen(conn->inbuf) < SILC_HTTP_SERVER_BUFLEN)
+ if (!silc_buffer_realloc(conn->inbuf, silc_buffer_truelen(conn->inbuf) +
+ SILC_HTTP_SERVER_BUFLEN * 2)) {
+ conn->keepalive = FALSE;
+ silc_http_server_close_connection(conn);
+ return;
+ }
+
+ /* Read data from stream */
+ ret = silc_stream_read(conn->stream, conn->inbuf->tail,
+ silc_buffer_taillen(conn->inbuf));
+
+ if (ret == 0 || ret == -2) {
+ silc_http_server_close_connection(conn);
+ return;
+ }
+
+ if (ret == -1) {
+ /* Cannot read now, do it later. */
+ silc_buffer_pull(conn->inbuf, silc_buffer_len(conn->inbuf));
+ return;
+ }
+
+ SILC_LOG_DEBUG(("Read %d bytes data", ret));
+
+ /* Parse the data */
+ silc_buffer_pull_tail(conn->inbuf, ret);
+ if (!silc_http_server_parse(httpd, conn))
+ silc_buffer_reset(conn->outbuf);
+
+ break;
+
+ case SILC_STREAM_CAN_WRITE:
+ SILC_LOG_DEBUG(("Write HTTP data"));
+
+ conn->touched = silc_time();
+
+ /* Write pending data to stream */
+ while (silc_buffer_len(conn->outbuf) > 0) {
+ ret = silc_stream_write(conn->stream, silc_buffer_data(conn->outbuf),
+ silc_buffer_len(conn->outbuf));
+
+ if (ret == 0 || ret == -2) {
+ conn->keepalive = FALSE;
+ silc_http_server_close_connection(conn);
+ return;
+ }
+
+ if (ret == -1)
+ /* Cannot write now, write later. */
+ return;
+
+ /* Wrote data */
+ silc_buffer_pull(conn->outbuf, ret);
+ }
+
+ /* Data sent, close connection */
+ SILC_LOG_DEBUG(("Data sent"));
+ silc_http_server_close_connection(conn);
+ break;
+
+ default:
+ conn->keepalive = FALSE;
+ silc_http_server_close_connection(conn);
+ break;
+ }
+}
+
+/* Accepts new connection */
+
+static void silc_http_server_new_connection(SilcNetStatus status,
+ SilcStream stream,
+ void *context)
+{
+ SilcHttpServer httpd = context;
+ SilcHttpConnection conn;
+ const char *hostname = NULL, *ip = NULL;
+
+ /* Get free connection */
+ silc_list_start(httpd->conns);
+ conn = silc_list_get(httpd->conns);
+ if (!conn) {
+ conn = silc_http_server_alloc_connection();
+ if (!conn) {
+ silc_stream_destroy(stream);
+ return;
+ }
+ }
+
+ conn->httpd = httpd;
+ conn->stream = stream;
+
+ silc_socket_stream_get_info(stream, NULL, &hostname, &ip, NULL);
+ SILC_LOG_INFO(("HTTPD: New connection %s (%s)", hostname, ip));
+
+ /* Schedule the connection for data I/O */
+ silc_stream_set_notifier(stream, httpd->schedule, silc_http_server_io, conn);
+
+ /* Add connection timeout check */
+ silc_schedule_task_add_timeout(httpd->schedule,
+ silc_http_server_connection_timeout, conn,
+ SILC_HTTP_SERVER_TIMEOUT, 0);
+}
+
+
+/******************************* Public API *********************************/
+
+/* Allocate HTTP server */
+
+SilcHttpServer silc_http_server_alloc(const char *ip, SilcUInt16 port,
+ SilcUInt32 max_connections,
+ SilcSchedule schedule,
+ SilcHttpServerCallback callback,
+ void *context)
+{
+ SilcHttpServer httpd;
+ SilcHttpConnection conn;
+ int i;
+
+ SILC_LOG_DEBUG(("Start HTTP server at %s:%d", ip, port));
+
+ if (!ip || !schedule || !callback)
+ return FALSE;
+
+ httpd = silc_calloc(1, sizeof(*httpd));
+ if (!httpd)
+ return NULL;
+
+ /* Create server listener */
+ httpd->listener =
+ silc_net_tcp_create_listener(&ip, 1, port, TRUE, FALSE, schedule,
+ silc_http_server_new_connection, httpd);
+ if (!httpd->listener) {
+ SILC_LOG_ERROR(("Could not bind HTTP server at %s:%d", ip, port));
+ silc_http_server_free(httpd);
+ return NULL;
+ }
+
+ httpd->schedule = schedule;
+ httpd->callback = callback;
+ httpd->context = context;
+
+ /* Allocate connections list */
+ if (!max_connections)
+ max_connections = SILC_HTTP_SERVER_CONNS;
+ for (i = 0; i < max_connections; i++) {
+ conn = silc_http_server_alloc_connection();
+ if (!conn)
+ break;
+ silc_list_add(httpd->conns, conn);
+ silc_list_add(httpd->allconns, conn);
+ }
+
+ SILC_LOG_DEBUG(("HTTP Server started"));
+
+ return httpd;
+}
+
+/* Free HTTP server */
+
+void silc_http_server_free(SilcHttpServer httpd)
+{
+ SilcHttpConnection conn;
+
+ silc_list_start(httpd->allconns);
+ while ((conn = silc_list_get(httpd->allconns))) {
+ conn->keepalive = FALSE;
+ silc_http_server_close_connection(conn);
+ silc_buffer_free(conn->inbuf);
+ silc_buffer_free(conn->outbuf);
+ silc_free(conn);
+ }
+
+ if (httpd->listener)
+ silc_net_close_listener(httpd->listener);
+
+ silc_free(httpd);
+}
+
+/* Send HTTP data to connection */
+
+SilcBool silc_http_server_send(SilcHttpServer httpd,
+ SilcHttpConnection conn,
+ SilcBuffer data)
+{
+ SilcBufferStruct h;
+ unsigned char *headers, tmp[16];
+ SilcUInt32 headers_len;
+ SilcBool ret;
+
+ SILC_LOG_DEBUG(("Sending HTTP data"));
+
+ conn->touched = silc_time();
+
+ /* Write headers */
+ silc_buffer_set(&h, SILC_HTTP_SERVER_HEADER,
+ strlen(SILC_HTTP_SERVER_HEADER));
+ ret = silc_http_server_send_internal(httpd, conn, &h, TRUE);
+ if (!ret) {
+ conn->keepalive = FALSE;
+ silc_http_server_close_connection(conn);
+ return FALSE;
+ }
+
+ if (!conn->headers) {
+ conn->headers = silc_mime_alloc();
+ if (!conn->headers) {
+ conn->keepalive = FALSE;
+ silc_http_server_close_connection(conn);
+ return FALSE;
+ }
+ }
+
+ snprintf(tmp, sizeof(tmp), "%d", (int)silc_buffer_len(data));
+ silc_mime_add_field(conn->headers, "Content-Length", tmp);
+ silc_mime_add_field(conn->headers, "Connection", "keep-alive");
+ snprintf(tmp, sizeof(tmp), "%d", (int)SILC_HTTP_SERVER_TIMEOUT);
+ silc_mime_add_field(conn->headers, "Keep-alive", tmp);
+ silc_mime_add_field(conn->headers, "Last-Modified",
+ silc_time_string(conn->touched));
+
+ headers = silc_mime_encode(conn->headers, &headers_len);
+ if (headers) {
+ silc_buffer_set(&h, headers, headers_len);
+ if (!silc_http_server_send_internal(httpd, conn, &h, TRUE)) {
+ conn->keepalive = FALSE;
+ silc_http_server_close_connection(conn);
+ return FALSE;
+ }
+ silc_free(headers);
+ }
+
+ /* Write the page data */
+ return silc_http_server_send_internal(httpd, conn, data, FALSE);
+}
+
+/* Send error reply */
+
+SilcBool silc_http_server_send_error(SilcHttpServer httpd,
+ SilcHttpConnection conn,
+ const char *error,
+ const char *error_message)
+{
+ SilcBool ret;
+ SilcBufferStruct data;
+
+ memset(&data, 0, sizeof(data));
+ silc_buffer_strformat(&data,
+ "HTTP/1.1 ", error, "\r\n\r\n", error_message,
+ SILC_STRFMT_END);
+
+ /* Send the message */
+ ret = silc_http_server_send_internal(httpd, conn, &data, FALSE);
+
+ silc_buffer_purge(&data);
+
+ /* Close connection */
+ conn->keepalive = FALSE;
+ silc_http_server_close_connection(conn);
+
+ return ret;
+}
+
+/* Get field */
+
+const char *silc_http_server_get_header(SilcHttpServer httpd,
+ SilcHttpConnection conn,
+ const char *field)
+{
+ if (!conn->curheaders)
+ return NULL;
+ return silc_mime_get_field(conn->curheaders, field);
+}
+
+/* Add field */
+
+SilcBool silc_http_server_add_header(SilcHttpServer httpd,
+ SilcHttpConnection conn,
+ const char *field,
+ const char *value)
+{
+ SILC_LOG_DEBUG(("Adding header %s:%s", field, value));
+
+ if (!conn->headers) {
+ conn->headers = silc_mime_alloc();
+ if (!conn->headers) {
+ silc_http_server_close_connection(conn);
+ return FALSE;
+ }
+ }
+
+ silc_mime_add_field(conn->headers, field, value);
+ return TRUE;
+}
--- /dev/null
+/*
+
+ silchttpserver.h
+
+ Author: Pekka Riikonen <priikone@silcnet.org>
+
+ Copyright (C) 2006 Pekka Riikonen
+
+ 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; version 2 of the License.
+
+ 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.
+
+*/
+
+/****h* silchttp/SILC HTTP Server Interface
+ *
+ * DESCRIPTION
+ *
+ * Very simple HTTP server interface. This HTTP server supports basic HTTP
+ * features. All pages on the server are dynamically created by the caller
+ * of this interface. The server does not support plugins, modules, cgi-bin,
+ * server-side includes or any other special features.
+ *
+ ***/
+
+#ifndef SILCHTTPSERVER_H
+#define SILCHTTPSERVER_H
+
+typedef struct SilcHttpServerStruct *SilcHttpServer;
+typedef struct SilcHttpConnectionStruct *SilcHttpConnection;
+
+/****f* silchttp/SilcHTTPServer/SilcHttpServerCallback
+ *
+ * SYNOPSIS
+ *
+ * typedef void (*SilcHttpServerCallback)(SilcHttpServer httpd,
+ * SilcHttpConnection conn,
+ * const char *uri,
+ * const char *method,
+ * SilcBuffer data,
+ * void *context);
+ *
+ * DESCRIPTION
+ *
+ * The HTTP request callback, that is called everytime a new HTTP request
+ * comes from a HTTP client. The `uri' is the requested URI (web page),
+ * and the `method' is the HTTP request method (GET, POST, etc.). The
+ * `data' is non-NULL only if the `method' is POST, and it includes the
+ * the POST data.
+ *
+ * The requested web page must be returned to the HTTP client from this
+ * callback by calling silc_http_server_send or error is returned by
+ * calling silc_http_server_send_error.
+ *
+ * The silc_http_server_get_header may be called to find a specific
+ * HTTP header from this request. New headers may be added to the
+ * reply by calling silc_http_server_add_header.
+ *
+ ***/
+typedef void (*SilcHttpServerCallback)(SilcHttpServer httpd,
+ SilcHttpConnection conn,
+ const char *uri,
+ const char *method,
+ SilcBuffer data,
+ void *context);
+
+/****f* silchttp/SilcHTTPServer/silc_http_server_alloc
+ *
+ * SYNOPSIS
+ *
+ * SilcHttpServer
+ * silc_http_server_alloc(const char *ip, SilcUInt16 port,
+ * SilcUInt32 max_connections,
+ * SilcSchedule schedule,
+ * SilcHttpServerCallback callback, void *context);
+ *
+ * DESCRIPTION
+ *
+ * Allocates HTTP server and binds it to the IP address `ip' on the
+ * `port'. If `max_connections' is non-zero, that many connections
+ * are allowed to the HTTP server. The `callback' with `context' will
+ * be called everytime a new HTTP request comes to the server from
+ * a HTTP client. In that callback the caller must then reply with
+ * the requested Web page or with an error.
+ *
+ ***/
+SilcHttpServer silc_http_server_alloc(const char *ip, SilcUInt16 port,
+ SilcUInt32 max_connections,
+ SilcSchedule schedule,
+ SilcHttpServerCallback callback,
+ void *context);
+
+/****f* silchttp/SilcHTTPServer/silc_http_server_free
+ *
+ * SYNOPSIS
+ *
+ * void silc_http_server_free(SilcHttpServer httpd);
+ *
+ * DESCRIPTION
+ *
+ * Close HTTP server and free all resources.
+ *
+ ***/
+void silc_http_server_free(SilcHttpServer httpd);
+
+/****f* silchttp/SilcHTTPServer/silc_http_server_free
+ *
+ * SYNOPSIS
+ *
+ * SilcBool silc_http_server_send(SilcHttpServer httpd,
+ * SilcHttpConnection conn,
+ * SilcBuffer data);
+ *
+ * DESCRIPTION
+ *
+ * Send the HTTP data indicated by `data' buffer into the connection
+ * indicated by `conn'. Returns TRUE after the data is sent, and FALSE
+ * if error occurred. Usually the `data' would be the requested web page.
+ *
+ ***/
+SilcBool silc_http_server_send(SilcHttpServer httpd,
+ SilcHttpConnection conn,
+ SilcBuffer data);
+
+/****f* silchttp/SilcHTTPServer/silc_http_server_free
+ *
+ * SYNOPSIS
+ *
+ * SilcBool silc_http_server_send_error(SilcHttpServer httpd,
+ * SilcHttpConnection conn,
+ * const char *error,
+ * const char *error_message);
+ *
+ * DESCRIPTION
+ *
+ * Send HTTP error back to the connection indicated by `conn'. The
+ * `error' is one of the 4xx or 5xx errors defined by the HTTP protocol.
+ * The `error_message' is the optional error message sent to the
+ * connection. Returns FALSE if the error could not be sent.
+ *
+ * Typical errors are: 400 Bad Request
+ * 403 Forbidden
+ * 404 Not Found
+ *
+ * EXAMPLE
+ *
+ * silc_http_server_send_error(httpd, conn, "400 Bad Request",
+ * "<body><h1>400 Bad Request!!</h1></body>");
+ *
+ ***/
+SilcBool silc_http_server_send_error(SilcHttpServer httpd,
+ SilcHttpConnection conn,
+ const char *error,
+ const char *error_message);
+
+/****f* silchttp/SilcHTTPServer/silc_http_server_get_header
+ *
+ * SYNOPSIS
+ *
+ * const char *silc_http_server_get_header(SilcHttpServer httpd,
+ * SilcHttpConnection conn,
+ * const char *field);
+ *
+ * DESCRIPTION
+ *
+ * Finds a header field indicated by `field' from the current HTTP
+ * request sent by the HTTP client. Returns the field value or NULL
+ * if suchs header field does not exist.
+ *
+ ***/
+const char *silc_http_server_get_header(SilcHttpServer httpd,
+ SilcHttpConnection conn,
+ const char *field);
+
+/****f* silchttp/SilcHTTPServer/silc_http_server_add_header
+ *
+ * SYNOPSIS
+ *
+ * SilcBool silc_http_server_add_header(SilcHttpServer httpd,
+ * SilcHttpConnection conn,
+ * const char *field,
+ * const char *value);
+ *
+ * DESCRIPTION
+ *
+ * Adds a new header to the HTTP headers to be sent back to the
+ * HTTP client. This may be called to add needed headers to the
+ * HTTP reply.
+ *
+ * EXAMPLE
+ *
+ * silc_http_server_add_header(httpd, conn, "Content-Type", "image/jpeg");
+ *
+ ***/
+SilcBool silc_http_server_add_header(SilcHttpServer httpd,
+ SilcHttpConnection conn,
+ const char *field,
+ const char *value);
+
+#endif /* SILCHTTPSERVER_H */
--- /dev/null
+/* SilcHttpServer tests */
+
+#include "silc.h"
+#include "../silchttpserver.h"
+
+static void http_callback(SilcHttpServer httpd, SilcHttpConnection conn,
+ const char *uri, const char *method,
+ SilcBuffer data, void *context)
+{
+ SilcBufferStruct page;
+
+ SILC_LOG_DEBUG(("HTTP data received, URI:%s, method:%s", uri, method));
+
+ if (!strcasecmp(method, "GET")) {
+ /* Send our default page */
+ if (!strcmp(uri, "/") || !strcmp(uri, "/index.html")) {
+ memset(&page, 0, sizeof(page));
+ silc_buffer_strformat(&page,
+ "<html><head></head><body>",
+ silc_http_server_get_header(httpd, conn,
+ "User-Agent"),
+ "<p>OUR DEFAULT PAGE IS THIS: ",
+ silc_time_string(silc_time()),
+ "<P><FORM action=\"/posttest\" method=\"post\"><P>"
+ "<LABEL>First name: </LABEL>"
+ "<INPUT type=\"text\" name=\"firstname\"><BR>"
+ "<INPUT type=\"radio\" name=\"sex\" value=\"Male\"> Male<BR>"
+ "<INPUT type=\"radio\" name=\"sex\" value=\"Female\"> Female<BR>"
+ "<INPUT type=\"submit\" value=\"Send\"> <INPUT type=\"reset\">"
+ "</P></FORM>"
+ "</body></html>",
+ SILC_STRFMT_END);
+ silc_http_server_add_header(httpd, conn, "X-Date",
+ silc_time_string(silc_time()));
+ silc_http_server_send(httpd, conn, &page);
+ silc_buffer_purge(&page);
+ return;
+ }
+ }
+
+ if (!strcasecmp(method, "POST")) {
+ if (strcmp(uri, "/posttest"))
+ return;
+ memset(&page, 0, sizeof(page));
+ silc_buffer_strformat(&page,
+ "<html><head></head><body>",
+ "POST PROCESSED:",
+ silc_buffer_data(data),
+ "</body></html>",
+ SILC_STRFMT_END);
+ silc_http_server_add_header(httpd, conn, "X-Date",
+ silc_time_string(silc_time()));
+ silc_http_server_send(httpd, conn, &page);
+ silc_buffer_purge(&page);
+ return;
+ }
+
+ silc_http_server_send_error(httpd, conn, "404 Not Found",
+ "<body><h1>404 Not Found: The page you are looking for cannot be located</h1></body>");
+}
+
+int main(int argc, char **argv)
+{
+ SilcBool success = FALSE;
+ SilcSchedule schedule;
+ SilcHttpServer httpd;
+
+ if (argc > 1 && !strcmp(argv[1], "-d")) {
+ silc_log_debug(TRUE);
+ silc_log_debug_hexdump(TRUE);
+ silc_log_set_debug_string("*http*,*mime*");
+ }
+
+ signal(SIGPIPE, SIG_IGN);
+
+ SILC_LOG_DEBUG(("Allocating scheduler"));
+ schedule = silc_schedule_init(0, NULL);
+ if (!schedule)
+ goto err;
+
+ SILC_LOG_DEBUG(("Allocating HTTP server at 127.0.0.1:5000"));
+ httpd = silc_http_server_alloc("127.0.0.1", 5000, 0, schedule,
+ http_callback, NULL);
+ if (!httpd)
+ goto err;
+
+ silc_schedule(schedule);
+
+ silc_schedule_uninit(schedule);
+
+ success = TRUE;
+
+ err:
+ SILC_LOG_DEBUG(("Testing was %s", success ? "SUCCESS" : "FAILURE"));
+ fprintf(stderr, "Testing was %s\n", success ? "SUCCESS" : "FAILURE");
+
+ return success;
+}
projects / crypto.git / commitdiff