summaryrefslogtreecommitdiff
path: root/src/libstrongswan/utils/fetcher.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/libstrongswan/utils/fetcher.c')
-rw-r--r--src/libstrongswan/utils/fetcher.c424
1 files changed, 0 insertions, 424 deletions
diff --git a/src/libstrongswan/utils/fetcher.c b/src/libstrongswan/utils/fetcher.c
deleted file mode 100644
index 7a06999aa..000000000
--- a/src/libstrongswan/utils/fetcher.c
+++ /dev/null
@@ -1,424 +0,0 @@
-/**
- * @file fetcher.c
- *
- * @brief Implementation of fetcher_t.
- *
- */
-
-/*
- * Copyright (C) 2007 Andreas Steffen
- * Hochschule fuer Technik Rapperswil
- *
- * 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; either version 2 of the License, or (at your
- * option) any later version. See <fetcher://www.fsf.org/copyleft/gpl.txt>.
- *
- * 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.
- */
-
-#ifdef LIBCURL
-#include <curl/curl.h>
-#endif /* LIBCURL */
-
-#ifdef LIBLDAP
-#ifndef LDAP_DEPRECATED
-#define LDAP_DEPRECATED 1
-#endif
-#include <ldap.h>
-#endif /* LIBLDAP */
-
-#include <library.h>
-#include <debug.h>
-
-#include "fetcher.h"
-
-typedef struct private_fetcher_t private_fetcher_t;
-
-/**
- * @brief Private Data of a fetcher_t object.
- */
-struct private_fetcher_t {
- /**
- * Public data
- */
- fetcher_t public;
-
- /**
- * URI of the information source
- */
- const char *uri;
-
-#ifdef LIBCURL
- /**
- * we use libcurl from http://curl.haxx.se/ as a fetcher
- */
- CURL* curl;
-#endif /* LIBCURL */
-
-#ifdef LIBLDAP
- /**
- * we use libldap from http://www.openssl.org/ as a fetcher
- */
- LDAP *ldap;
- LDAPURLDesc *lurl;
-#endif /* LIBLDAP */
-};
-
-/**
- * writes data into a dynamically resizeable chunk_t
- * needed for libcurl responses
- */
-static size_t curl_write_buffer(void *ptr, size_t size, size_t nmemb, void *data)
-{
- size_t realsize = size * nmemb;
- chunk_t *mem = (chunk_t*)data;
-
- mem->ptr = (u_char *)realloc(mem->ptr, mem->len + realsize);
- if (mem->ptr) {
- memcpy(&(mem->ptr[mem->len]), ptr, realsize);
- mem->len += realsize;
- }
- return realsize;
-}
-
-/**
- * Implements fetcher_t.get for curl methods
- */
-static chunk_t curl_get(private_fetcher_t *this)
-{
- chunk_t response = chunk_empty;
-
-#ifdef LIBCURL
- if (this->curl)
- {
- CURLcode res;
- chunk_t curl_response = chunk_empty;
- char curl_error_buffer[CURL_ERROR_SIZE];
-
- curl_easy_setopt(this->curl, CURLOPT_URL, this->uri);
- curl_easy_setopt(this->curl, CURLOPT_WRITEFUNCTION, curl_write_buffer);
- curl_easy_setopt(this->curl, CURLOPT_WRITEDATA, (void *)&curl_response);
- curl_easy_setopt(this->curl, CURLOPT_ERRORBUFFER, &curl_error_buffer);
- curl_easy_setopt(this->curl, CURLOPT_FAILONERROR, TRUE);
- curl_easy_setopt(this->curl, CURLOPT_CONNECTTIMEOUT, FETCHER_TIMEOUT);
- curl_easy_setopt(this->curl, CURLOPT_NOSIGNAL, TRUE);
-
- DBG1("sending curl request to '%s'...", this->uri);
- res = curl_easy_perform(this->curl);
-
- if (res == CURLE_OK)
- {
- DBG1("received valid curl response");
- response = chunk_clone(curl_response);
- }
- else
- {
- DBG1("curl request failed: %s", curl_error_buffer);
- }
- curl_free(curl_response.ptr);
- }
-#else
- DBG1("warning: libcurl fetching not compiled in");
-#endif /* LIBCURL */
- return response;
-}
-
-/**
- * Implements fetcher_t.post.
- */
-static chunk_t http_post(private_fetcher_t *this, const char *request_type, chunk_t request)
-{
- chunk_t response = chunk_empty;
-
-#ifdef LIBCURL
- if (this->curl)
- {
- CURLcode res;
- struct curl_slist *headers = NULL;
- chunk_t curl_response = chunk_empty;
- char curl_error_buffer[CURL_ERROR_SIZE];
- char content_type[BUF_LEN];
-
- /* set content type header */
- snprintf(content_type, BUF_LEN, "Content-Type: %s", request_type);
- headers = curl_slist_append(headers, content_type);
-
- /* set options */
- curl_easy_setopt(this->curl, CURLOPT_HTTPHEADER, headers);
- curl_easy_setopt(this->curl, CURLOPT_URL, this->uri);
- curl_easy_setopt(this->curl, CURLOPT_WRITEFUNCTION, curl_write_buffer);
- curl_easy_setopt(this->curl, CURLOPT_WRITEDATA, (void *)&curl_response);
- curl_easy_setopt(this->curl, CURLOPT_POSTFIELDS, request.ptr);
- curl_easy_setopt(this->curl, CURLOPT_POSTFIELDSIZE, request.len);
- curl_easy_setopt(this->curl, CURLOPT_ERRORBUFFER, &curl_error_buffer);
- curl_easy_setopt(this->curl, CURLOPT_FAILONERROR, TRUE);
- curl_easy_setopt(this->curl, CURLOPT_CONNECTTIMEOUT, FETCHER_TIMEOUT);
- curl_easy_setopt(this->curl, CURLOPT_NOSIGNAL, TRUE);
-
- DBG1("sending http post request to '%s'...", this->uri);
- res = curl_easy_perform(this->curl);
-
- if (res == CURLE_OK)
- {
- DBG1("received valid http response");
- response = chunk_clone(curl_response);
- }
- else
- {
- DBG1("http post request using libcurl failed: %s", curl_error_buffer);
- }
- curl_slist_free_all(headers);
- curl_free(curl_response.ptr);
- }
-#else
- DBG1("warning: libcurl fetching not compiled in");
-#endif /* LIBCURL */
- return response;
-}
-
-#ifdef LIBLDAP
-/**
- * Parses the result returned by an ldap query
- */
-static chunk_t ldap_parse(LDAP *ldap, LDAPMessage *result)
-{
- chunk_t response = chunk_empty;
- err_t ugh = NULL;
-
- LDAPMessage *entry = ldap_first_entry(ldap, result);
-
- if (entry != NULL)
- {
- BerElement *ber = NULL;
- char *attr;
-
- attr = ldap_first_attribute(ldap, entry, &ber);
-
- if (attr != NULL)
- {
- struct berval **values = ldap_get_values_len(ldap, entry, attr);
-
- if (values != NULL)
- {
- if (values[0] != NULL)
- {
- response.len = values[0]->bv_len;
- response.ptr = malloc(response.len);
- memcpy(response.ptr, values[0]->bv_val, response.len);
-
- if (values[1] != NULL)
- {
- ugh = "more than one value was fetched - first selected";
- }
- }
- else
- {
- ugh = "no values in attribute";
- }
- ldap_value_free_len(values);
- }
- else
- {
- ugh = ldap_err2string(ldap_result2error(ldap, entry, 0));
- }
- ldap_memfree(attr);
- }
- else
- {
- ugh = ldap_err2string(ldap_result2error(ldap, entry, 0));
- }
- ber_free(ber, 0);
- }
- else
- {
- ugh = ldap_err2string(ldap_result2error(ldap, result, 0));
- }
- if (ugh)
- {
- DBG1("ldap request failed: %s", ugh);
- }
- return response;
-}
-#endif /* LIBLDAP */
-
-/**
- * Implements fetcher_t.get for curl methods
- */
-static chunk_t ldap_get(private_fetcher_t *this)
-{
- chunk_t response = chunk_empty;
-
-#ifdef LIBLDAP
- if (this->ldap)
- {
- err_t ugh = NULL;
- int rc;
- int ldap_version = LDAP_VERSION3;
-
- struct timeval timeout;
-
- timeout.tv_sec = FETCHER_TIMEOUT;
- timeout.tv_usec = 0;
-
- ldap_set_option(this->ldap, LDAP_OPT_PROTOCOL_VERSION, &ldap_version);
- ldap_set_option(this->ldap, LDAP_OPT_NETWORK_TIMEOUT, &timeout);
-
- DBG1("sending ldap request to '%s'...", this->uri);
-
- rc = ldap_simple_bind_s(this->ldap, NULL, NULL);
- if (rc == LDAP_SUCCESS)
- {
- LDAPMessage *result;
-
- timeout.tv_sec = FETCHER_TIMEOUT;
- timeout.tv_usec = 0;
-
- rc = ldap_search_st(this->ldap, this->lurl->lud_dn,
- this->lurl->lud_scope,
- this->lurl->lud_filter,
- this->lurl->lud_attrs,
- 0, &timeout, &result);
-
- if (rc == LDAP_SUCCESS)
- {
- response = ldap_parse(this->ldap, result);
- if (response.ptr)
- {
- DBG1("received valid ldap response");
- }
- ldap_msgfree(result);
- }
- else
- {
- ugh = ldap_err2string(rc);
- }
- }
- else
- {
- ugh = ldap_err2string(rc);
- }
- ldap_unbind_s(this->ldap);
-
- if (ugh)
- {
- DBG1("ldap request failed: %s", ugh);
- }
- }
-#else /* !LIBLDAP */
- DBG1("warning: libldap fetching not compiled in");
-#endif /* !LIBLDAP */
- return response;
-}
-
-/**
- * Implements fetcher_t.destroy
- */
-static void destroy(private_fetcher_t *this)
-{
-#ifdef LIBCURL
- if (this->curl)
- {
- curl_easy_cleanup(this->curl);
- }
-#endif /* LIBCURL */
-
-#ifdef LIBLDAP
- if (this->lurl)
- {
- ldap_free_urldesc(this->lurl);
- }
-#endif /* LIBLDAP */
-
- free(this);
-}
-
-/*
- * Described in header.
- */
-fetcher_t *fetcher_create(const char *uri)
-{
- private_fetcher_t *this = malloc_thing(private_fetcher_t);
-
- /* initialize */
- this->uri = uri;
-
-#ifdef LIBCURL
- this->curl = NULL;
-#endif /* LIBCURL */
-
-#ifdef LIBLDAP
- this->lurl = NULL;
- this->ldap = NULL;
-#endif /* LIBLDAP */
-
- if (strlen(uri) >= 4 && strncasecmp(uri, "ldap", 4) == 0)
- {
-#ifdef LIBLDAP
- int rc = ldap_url_parse(uri, &this->lurl);
-
- if (rc == LDAP_SUCCESS)
- {
- this->ldap = ldap_init(this->lurl->lud_host,
- this->lurl->lud_port);
- }
- else
- {
- DBG1("ldap: %s", ldap_err2string(rc));
- this->ldap = NULL;
- }
-#endif /* LIBLDAP */
- this->public.get = (chunk_t (*) (fetcher_t*))ldap_get;
- }
- else
- {
-#ifdef LIBCURL
- this->curl = curl_easy_init();
- if (this->curl == NULL)
- {
- DBG1("curl_easy_init_failed()");
- }
-#endif /* LIBCURL */
- this->public.get = (chunk_t (*) (fetcher_t*))curl_get;
- }
-
- /* public functions */
- this->public.post = (chunk_t (*) (fetcher_t*,const char*,chunk_t))http_post;
- this->public.destroy = (void (*) (fetcher_t*))destroy;
-
- return &this->public;
-}
-
-/**
- * Described in header.
- */
-void fetcher_initialize(void)
-{
-#ifdef LIBCURL
- CURLcode res;
-
- /* initialize libcurl */
- DBG1("initializing libcurl");
- res = curl_global_init(CURL_GLOBAL_NOTHING);
- if (res != CURLE_OK)
- {
- DBG1("libcurl could not be initialized: %s", curl_easy_strerror(res));
- }
-#endif /* LIBCURL */
-}
-
-/**
- * Described in header.
- */
-void fetcher_finalize(void)
-{
-#ifdef LIBCURL
- /* finalize libcurl */
- DBG1("finalizing libcurl");
- curl_global_cleanup();
-#endif /* LIBCURL */
-}
-
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-30 20:16:25 +0000