mirror of
https://github.com/ChronosX88/psyced.git
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254 lines
6.6 KiB
C
254 lines
6.6 KiB
C
// $Id: server.c,v 1.64 2008/05/13 09:51:07 lynx Exp $ // vim:syntax=lpc
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//
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// yes, psyced is also a web server, like every decent piece of code. ;)
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//
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#include <ht/http.h>
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#include <net.h>
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#include <server.h>
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#include <text.h>
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#include "header.i"
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volatile string url, file, qs, version;
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volatile mapping headers;
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// we're using #'closures to point to the functions we're giving the
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// next_input_to(). as i don't want to restructure the whole file, i need
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// to predefine some functions.
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//
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// quite stupid indeed, as they don't got any modifiers or whatever :)
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parse_url(input);
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parse_header(input);
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devNull();
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qScheme() { return "html"; }
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logon() {
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D2(D("»»» New SmallHTTP user\n");)
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// bigger buffer (for psyc logo)
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set_buffer_size(32768);
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// unfortunately limited to a compilation limit
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// so we would have to push large files in chunks
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// using heart_beat() or something like that TODO
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next_input_to(#'parse_url);
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call_out(#'quit, TIME_LOGIN_IDLE);
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}
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disconnected(remainder) {
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// TODO: shouldn't ignore remainder
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D2(D("««« SmallHTTP got disconnected.\n");)
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destruct(ME);
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return 1; // expected death of socket
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}
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// gets called from async apps
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done() { quit(); }
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#if DEBUG > 1
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quit() {
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D2(D("««« SmallHTTP user done.\n");)
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::quit();
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}
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#endif
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void create() {
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if (clonep(ME)) headers = ([ ]);
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}
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parse_wait(null) { // waiting to send my error message here
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if (null == "") {
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http_error("HTTP/1.0", 405, "Invalid Request (Welcome Proxyscanner)");
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quit();
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}
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next_input_to(#'parse_wait);
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}
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parse_url(input) {
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P3(("=== SmallHTTP got: %O\n", input))
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unless (sscanf(input, "GET%t%s%tHTTP/%s", url, version)) {
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if (sscanf(input, "CONNECT%t%~s")) {
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next_input_to(#'parse_wait);
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return;
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} else {
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quit();
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return;
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}
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}
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version = "HTTP/" + version;
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P2(("=== SmallHTTP user requested url: %O\n", url))
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next_input_to(#'parse_header);
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}
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parse_header(input) {
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string key, val;
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P4(("parse_header(%O)\n", input))
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unless (input == "") {
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if (sscanf(input, "%s:%1.0t%s", key, val)) {
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headers[lower_case(key)] = val;
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}
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next_input_to(#'parse_header);
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} else {
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process();
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next_input_to(#'devNull);
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}
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}
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process() {
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string t, ext;
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mapping query = ([]);
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object o;
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int done = 1;
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// take defaults from cookie, then override by query string
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// lynXism cookie behaviour, normal one is below
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t = headers["cookie"];
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P4(("found cookie: %O\n", t))
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if (t && sscanf(t, "psyced=\"%s\"", t)) {
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P3(("got cookie: %O\n", t))
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query = url_parse_query(query, t);
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P4(("parsed cookie: %O\n", query))
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}
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#ifdef GENERIC_COOKIES // we might need them someday..?
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// if within the same domain other cookies are being used, like
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// by including google-analytics, then we might be receiving them
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// here and have no friggin' idea what they are good for.
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// thus: we *need* a way to ensure a cookie is our own.
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// FIXME: this is not really compliant
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else if (t) {
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mapping cook = ([ ]);
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string k, v;
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while(t && sscanf(t, "%s=%s;%t%s", k, v, t) >= 2) {
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cook[k] = v;
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}
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if (sscanf(t, "%s=%s", k, v))
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cook[lower_case(k)] = v; // case insensitive
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cook[0] = headers["cookie"]; // save cookie-string
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headers["cookie"] = cook;
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}
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#endif
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if (sscanf(url, "%s?%s", file, qs)) {
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P3(("got query: %O\n", qs))
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query = url_parse_query(query, qs);
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} else {
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file = url;
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}
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P4(("parsed query: %O\n", query))
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switch (file) {
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case "/favicon.ico":
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#if 0
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htredirect(version, "http://www.psyced.org/favicon.ico",
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"This one looks neat", 1);
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quit();
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return 1;
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#else
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file = "/static/favicon.ico";
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break;
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#endif
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case "/":
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case "":
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// should we look for text/wml in the accept: and go directly
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// to /net/wap/index ?
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//
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http_ok(version);
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sTextPath(0, query["lang"], "html");
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write( //T("_HTML_head", "<title>" CHATNAME "</title><body>\n"
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// "<center><table width=404><tr><td>") +
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T("_PAGES_index", "<i><a href=\"http://www.psyc.eu\"><img src="
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"\"static/psyc.gif\" width=464 height=93 border=0></a><p>"
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"<a href=\"http://www.psyced.org\">psyced</a></i> -"
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" your multicast capable web application server.") );
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// T("_HTML_tail", "</td></tr></table></center></body>"));
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quit();
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return 1;
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case "/static": // really don't like to do this, but the IE stores directories
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// (history) without trailing slash, even if the url originaly
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// has one, at least IIRC.
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htredirect(version, "/static/", "use the trailing slash", 1);
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quit();
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return 1;
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case "/static/":
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file = "/static/index.html";
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break;
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case "/oauth":
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object oauth;
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http_ok(version);
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//PT((">>> shm: %O\n", shared_memory("oauth_request_tokens")))
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if (query["oauth_verifier"] && (oauth = shared_memory("oauth_request_tokens")[query["oauth_token"]])) {
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//PT((">>> oauth: %O\n", oauth))
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oauth->verified(query["oauth_verifier"]);
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m_delete(shared_memory("oauth_request_tokens"), query["oauth_token"]);
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write("OAuth succeeded, you can now return to your client.");
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} else {
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write("OAuth failed: token not found");
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}
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quit();
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return 1;
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}
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switch (file[1]) {
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case '~':
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if (o = summon_person(file[2..], NET_PATH "user")) {
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o->htinfo(version, query, headers, qs);
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}
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quit();
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return 1;
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case '@':
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file = PLACE_PATH+ lower_case(file[2..]);
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break;
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default:
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if (abbrev("/static/", file)) {
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if (file_size(file) > 0) {
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if (sscanf(file, "%!s.%s", ext)) {
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while (sscanf(ext, "%!s.%s", ext)) ;
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}
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http_ok(version, content_type(ext), 0);
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binary_message(read_file(file));
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quit();
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return 1;
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}
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} else if (sscanf(file, "/%s/%s.page", ext, t) == 2) {
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http_ok(version);
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sTextPath(0, query["lang"] || ext, "html");
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t = replace(t, "/", "_");
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write(T("_HTML_head", "<title>" CHATNAME "</title><body>\n"
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"<center><table width=404><tr><td>") +
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T("_PAGES_"+t, "[no such page]\n") +
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T("_HTML_tail", "</td></tr></table></center></body>"));
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quit();
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return 1;
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}
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}
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if (index(file, ':') != -1) {
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http_error(version, 501, "Not Implemented. Whatever you are trying "
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"there, this server won't help you.");
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quit();
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return;
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}
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o = file -> load();
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if (objectp(o) || o = find_object(file))
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done = o->htget(version, query, headers, qs) != HTMORE;
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if (done)
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quit();
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else
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remove_call_out(#'quit);
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return 1;
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}
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// wozu binary_message nochmal durch eine funktion jagen? lieber so nennen:
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emit(a) { return binary_message(a); }
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devNull() {
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next_input_to(#'devNull);
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D2(D("=== SmallHTTP just ignored some input\n");)
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}
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