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/* Debug page module for HTTP server. |
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* |
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* IRC Services is copyright (c) 1996-2009 Andrew Church. |
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* E-mail: <achurch@achurch.org> |
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* Parts written by Andrew Kempe and others. |
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* This program is free but copyrighted software; see the file GPL.txt for |
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* details. |
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*/ |
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|
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#include "services.h" |
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#include "modules.h" |
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#include "conffile.h" |
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#include "http.h" |
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|
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/*************************************************************************/ |
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|
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static Module *module_httpd; |
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|
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static char *DebugURL; |
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|
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/*************************************************************************/ |
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/*************************** Request callback ****************************/ |
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/*************************************************************************/ |
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|
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static int do_request(Client *c, int *close_ptr) |
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{ |
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/* Check whether this URL belongs to us. If not, pass control on to |
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* the next callback function. |
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*/ |
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if (strcmp(c->url, DebugURL) != 0) |
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return 0; |
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|
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|
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/* Send initial "200 OK" line and Date: header. */ |
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http_send_response(c, HTTP_S_OK); |
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|
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/* If not a HEAD request, indicate that we will close the connection |
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* after this request (because we don't send a Content-Length: |
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* header). If the request is a HEAD request, the blank line after |
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* the headers will signal the end of the response, so we can leave |
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* the connection open for further requests (keepalive). |
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*/ |
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if (c->method != METHOD_HEAD) |
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sockprintf(c->socket, "Connection: close\r\n"); |
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|
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/* Send Content-Type: header and end header portion of response */ |
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sockprintf(c->socket, "Content-Type: text/plain\r\n\r\n"); |
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|
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|
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/* Now send the body part of the response for non-HEAD requests. |
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* |
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* RFC2616 9.4: Server MUST NOT return a message-body in the response |
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* to a HEAD request. |
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*/ |
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if (c->method != METHOD_HEAD) { |
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int i; |
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|
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/* Write data to socket. */ |
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sockprintf(c->socket, "address: %s\n", c->address); |
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sockprintf(c->socket, "request_len: %d\n", c->request_len); |
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sockprintf(c->socket, "version_major: %d\n", c->version_major); |
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sockprintf(c->socket, "version_minor: %d\n", c->version_minor); |
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sockprintf(c->socket, "method: %d\n", c->method); |
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sockprintf(c->socket, "url: %s\n", c->url); |
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sockprintf(c->socket, "data_len: %d\n", c->data_len); |
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sockprintf(c->socket, "headers_count: %d\n", c->headers_count); |
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ARRAY_FOREACH (i, c->headers) |
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sockprintf(c->socket, "headers[%d]: %s: %s\n", i, c->headers[i], |
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c->headers[i] + strlen(c->headers[i]) + 1); |
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sockprintf(c->socket, "variables_count: %d\n", c->variables_count); |
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ARRAY_FOREACH (i, c->variables) |
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sockprintf(c->socket, "variables[%d]: %s: %s\n", i,c->variables[i], |
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c->variables[i] + strlen(c->variables[i]) + 1); |
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|
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/* We did not specify a Content-Length: header, so we must close |
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* the connection to signal end-of-data to the client. However, |
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* we MUST NOT call disconn() directly as that could lead to |
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* use of invalid pointers in the main HTTP server module. |
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* Instead, we set `close_ptr' nonzero, which tells the server to |
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* close the connection when control returns to it. |
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*/ |
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*close_ptr = 1; |
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} |
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/* Note that we MUST NOT explicitly set `close_ptr' to zero for HEAD |
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* requests, or any other request for which we can keep the connection |
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* alive; the client may be an old (HTTP/1.0) client that can't handle |
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* keepalive, or it may have explicitly requested the connection be |
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* closed (e.g. with a "Connection: close" header). |
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*/ |
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|
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/* URL was handled by this module; terminate callback chain. */ |
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return 1; |
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} |
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|
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/*************************************************************************/ |
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/***************************** Module stuff ******************************/ |
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/*************************************************************************/ |
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|
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ConfigDirective module_config[] = { |
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{ "DebugURL", { { CD_STRING, CF_DIRREQ, &DebugURL } } }, |
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{ NULL } |
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}; |
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|
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/*************************************************************************/ |
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|
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int init_module(void) |
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{ |
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module_httpd = find_module("httpd/main"); |
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if (!module_httpd) { |
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module_log("Main httpd module not loaded"); |
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exit_module(0); |
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return 0; |
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} |
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use_module(module_httpd); |
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|
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if (!add_callback(module_httpd, "request", do_request)) { |
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module_log("Unable to add callback"); |
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exit_module(0); |
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return 0; |
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} |
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|
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return 1; |
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} |
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|
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/*************************************************************************/ |
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|
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int exit_module(int shutdown_unused) |
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{ |
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if (module_httpd) { |
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remove_callback(module_httpd, "request", do_request); |
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unuse_module(module_httpd); |
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module_httpd = NULL; |
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} |
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|
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return 1; |
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} |
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|
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/*************************************************************************/ |
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|
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/* |
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* Local variables: |
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* c-file-style: "stroustrup" |
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* c-file-offsets: ((case-label . *) (statement-case-intro . *)) |
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* indent-tabs-mode: nil |
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* End: |
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* |
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* vim: expandtab shiftwidth=4: |
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*/ |
