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71cbe86566
This introduces a new way of linking Serval executables and dynamic libraries from static libraries like libservald.a -- called "feature-driven" linking. The Makefile now links servald and serval-tests from libservald.a, rather than from an explicit list of object (.o) files. Thanks to the section-based method for registering functions such as HTTP handlers, CLI commands and MDP handlers, these object files had become "stand-alone" and hence were no longer included in the link because there was no unresolved reference that required them to be linked in. The new "feature.h" provides the DECLARE_FEATURE(name) macro that each stand-alone source file uses to declare the named feature(s) it provides. Each executable can call the USE_FEATURE(name) macro in any of its explicitly-linked source files to cause the corresponding object(s) to be included in the link, eg, servald_features.c. The DEFINE_BINDING() macro has been extended so that every individual MDP binding is given a feature name based on its port number macro, eg, "mdp_binding_MDP_PORT_ECHO". Some features have been factored into their own separate source files so they can be omitted or included in a build independently of each other: - the MDP bindings for MDP_PORT_DNALOOKUP, MDP_PORT_ECHO, MDP_PORT_TRACE, MDP_PORT_KEYMAPREQUEST, MDP_PORT_RHIZOME_xxx, MDP_PORT_PROBE, MDP_PORT_STUN, MDP_PORT_STUNREQ - the CLI "log" and "echo" commands - the CLI "rhizome direct" command The JNI source files are only compiled if the <jni.h> header is present, otherwise they are omitted from libservald.so.
99 lines
3.4 KiB
C
99 lines
3.4 KiB
C
/*
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Serval DNA Rhizome HTTP external interface
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Copyright (C) 2013,2014 Serval Project Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "serval.h"
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#include "conf.h"
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#include "httpd.h"
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#include "str.h"
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#include "strbuf.h"
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DEFINE_FEATURE(http_rhizome);
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DECLARE_HANDLER("/rhizome/status", rhizome_status_page);
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DECLARE_HANDLER("/rhizome/file/", rhizome_file_page);
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DECLARE_HANDLER("/rhizome/manifestbyprefix/", manifest_by_prefix_page);
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static int rhizome_file_page(httpd_request *r, const char *remainder)
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{
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/* Stream the specified payload */
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if (!is_rhizome_http_enabled())
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return 403;
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if (r->http.verb != HTTP_VERB_GET)
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return 405;
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if (r->http.request_header.content_range_count > 1) {
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// To support byte range sets, eg, Range: bytes=0-100,200-300,400- we would have
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// to reply with a multipart/byteranges MIME content.
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http_request_simple_response(&r->http, 501, "Not Implemented: Byte range sets");
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return 1;
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}
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rhizome_filehash_t filehash;
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if (str_to_rhizome_filehash_t(&filehash, remainder) == -1)
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return 1;
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int ret = rhizome_response_content_init_filehash(r, &filehash);
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if (ret)
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return ret;
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http_request_response_generated(&r->http, 200, CONTENT_TYPE_BLOB, rhizome_payload_content);
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return 1;
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}
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static int manifest_by_prefix_page(httpd_request *r, const char *remainder)
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{
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if (!is_rhizome_http_enabled())
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return 403;
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if (r->http.verb != HTTP_VERB_GET)
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return 405;
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rhizome_bid_t prefix;
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const char *endp = NULL;
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unsigned prefix_len = strn_fromhex(prefix.binary, sizeof prefix.binary, remainder, &endp);
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if (endp == NULL || *endp != '\0' || prefix_len < 1)
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return 404; // not found
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if ((r->manifest = rhizome_new_manifest()) == NULL)
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return 500;
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switch(rhizome_retrieve_manifest_by_prefix(prefix.binary, prefix_len, r->manifest)){
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case RHIZOME_BUNDLE_STATUS_SAME:
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http_request_response_static(&r->http, 200, CONTENT_TYPE_BLOB, (const char *)r->manifest->manifestdata, r->manifest->manifest_all_bytes);
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return 1;
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case RHIZOME_BUNDLE_STATUS_NEW:
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return 404;
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default:
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return 500;
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}
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}
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static int rhizome_status_page(httpd_request *r, const char *remainder)
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{
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if (!is_rhizome_http_enabled())
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return 403;
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if (*remainder)
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return 404;
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if (r->http.verb != HTTP_VERB_GET)
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return 405;
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char buf[32*1024];
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strbuf b = strbuf_local_buf(buf);
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strbuf_puts(b, "<html><head><meta http-equiv=\"refresh\" content=\"5\" ></head><body>");
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strbuf_sprintf(b, "%d HTTP requests<br>", current_httpd_request_count);
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strbuf_sprintf(b, "%d Bundles transferring via MDP<br>", rhizome_cache_count());
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rhizome_fetch_status_html(b);
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strbuf_puts(b, "</body></html>");
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if (strbuf_overrun(b))
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return -1;
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http_request_response_static(&r->http, 200, CONTENT_TYPE_HTML, buf, strbuf_len(b));
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return 1;
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}
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