diff options
Diffstat (limited to 'src/mod_usertrack.c')
| -rw-r--r-- | src/mod_usertrack.c | 277 |
1 files changed, 0 insertions, 277 deletions
diff --git a/src/mod_usertrack.c b/src/mod_usertrack.c deleted file mode 100644 index b0275107..00000000 --- a/src/mod_usertrack.c +++ /dev/null @@ -1,277 +0,0 @@ -#include <ctype.h> -#include <stdlib.h> -#include <string.h> - -#include "base.h" -#include "log.h" -#include "buffer.h" - -#include "plugin.h" - -#ifdef USE_OPENSSL -# include <openssl/md5.h> -#else -# include "md5.h" - -typedef li_MD5_CTX MD5_CTX; -#define MD5_Init li_MD5_Init -#define MD5_Update li_MD5_Update -#define MD5_Final li_MD5_Final - -#endif - -/* plugin config for all request/connections */ - -typedef struct { - buffer *cookie_name; - buffer *cookie_domain; - unsigned short cookie_max_age; -} plugin_config; - -typedef struct { - PLUGIN_DATA; - - plugin_config **config_storage; - - plugin_config conf; -} plugin_data; - -/* init the plugin data */ -INIT_FUNC(mod_usertrack_init) { - plugin_data *p; - - UNUSED(srv); - - p = calloc(1, sizeof(*p)); - - return p; -} - -/* detroy the plugin data */ -FREE_FUNC(mod_usertrack_free) { - plugin_data *p = p_d; - - UNUSED(srv); - - if (!p) return HANDLER_GO_ON; - - if (p->config_storage) { - size_t i; - for (i = 0; i < srv->config_context->used; i++) { - plugin_config *s = p->config_storage[i]; - - buffer_free(s->cookie_name); - buffer_free(s->cookie_domain); - - free(s); - } - free(p->config_storage); - } - - free(p); - - return HANDLER_GO_ON; -} - -/* handle plugin config and check values */ - -SETDEFAULTS_FUNC(mod_usertrack_set_defaults) { - plugin_data *p = p_d; - size_t i = 0; - - config_values_t cv[] = { - { "usertrack.cookie-name", NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION }, /* 0 */ - { "usertrack.cookie-max-age", NULL, T_CONFIG_SHORT, T_CONFIG_SCOPE_CONNECTION }, /* 1 */ - { "usertrack.cookie-domain", NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION }, /* 2 */ - - { "usertrack.cookiename", NULL, T_CONFIG_DEPRECATED, T_CONFIG_SCOPE_CONNECTION }, - { NULL, NULL, T_CONFIG_UNSET, T_CONFIG_SCOPE_UNSET } - }; - - if (!p) return HANDLER_ERROR; - - p->config_storage = calloc(1, srv->config_context->used * sizeof(specific_config *)); - - for (i = 0; i < srv->config_context->used; i++) { - plugin_config *s; - - s = calloc(1, sizeof(plugin_config)); - s->cookie_name = buffer_init(); - s->cookie_domain = buffer_init(); - s->cookie_max_age = 0; - - cv[0].destination = s->cookie_name; - cv[1].destination = &(s->cookie_max_age); - cv[2].destination = s->cookie_domain; - - p->config_storage[i] = s; - - if (0 != config_insert_values_global(srv, ((data_config *)srv->config_context->data[i])->value, cv)) { - return HANDLER_ERROR; - } - - if (buffer_is_empty(s->cookie_name)) { - buffer_copy_string_len(s->cookie_name, CONST_STR_LEN("TRACKID")); - } else { - size_t j; - for (j = 0; j < s->cookie_name->used - 1; j++) { - char c = s->cookie_name->ptr[j] | 32; - if (c < 'a' || c > 'z') { - log_error_write(srv, __FILE__, __LINE__, "sb", - "invalid character in usertrack.cookie-name:", - s->cookie_name); - - return HANDLER_ERROR; - } - } - } - - if (!buffer_is_empty(s->cookie_domain)) { - size_t j; - for (j = 0; j < s->cookie_domain->used - 1; j++) { - char c = s->cookie_domain->ptr[j]; - if (c <= 32 || c >= 127 || c == '"' || c == '\\') { - log_error_write(srv, __FILE__, __LINE__, "sb", - "invalid character in usertrack.cookie-domain:", - s->cookie_domain); - - return HANDLER_ERROR; - } - } - } - } - - return HANDLER_GO_ON; -} - -static int mod_usertrack_patch_connection(server *srv, connection *con, plugin_data *p) { - size_t i, j; - plugin_config *s = p->config_storage[0]; - - PATCH_OPTION(cookie_name); - PATCH_OPTION(cookie_domain); - PATCH_OPTION(cookie_max_age); - - /* skip the first, the global context */ - for (i = 1; i < srv->config_context->used; i++) { - data_config *dc = (data_config *)srv->config_context->data[i]; - s = p->config_storage[i]; - - /* condition didn't match */ - if (!config_check_cond(srv, con, dc)) continue; - - /* merge config */ - for (j = 0; j < dc->value->used; j++) { - data_unset *du = dc->value->data[j]; - - if (buffer_is_equal_string(du->key, CONST_STR_LEN("usertrack.cookie-name"))) { - PATCH_OPTION(cookie_name); - } else if (buffer_is_equal_string(du->key, CONST_STR_LEN("usertrack.cookie-max-age"))) { - PATCH_OPTION(cookie_max_age); - } else if (buffer_is_equal_string(du->key, CONST_STR_LEN("usertrack.cookie-domain"))) { - PATCH_OPTION(cookie_domain); - } - } - } - - return 0; -} - -URIHANDLER_FUNC(mod_usertrack_uri_handler) { - plugin_data *p = p_d; - data_string *ds; - unsigned char h[16]; - MD5_CTX Md5Ctx; - char hh[32]; - - if (con->uri.path->used == 0) return HANDLER_GO_ON; - - mod_usertrack_patch_connection(srv, con, p); - - if (NULL != (ds = (data_string *)array_get_element(con->request.headers, CONST_STR_LEN("Cookie")))) { - char *g; - /* we have a cookie, does it contain a valid name ? */ - - /* parse the cookie - * - * check for cookiename + (WS | '=') - * - */ - - if (NULL != (g = strstr(ds->value->ptr, p->conf.cookie_name->ptr))) { - char *nc; - - /* skip WS */ - for (nc = g + p->conf.cookie_name->used-1; *nc == ' ' || *nc == '\t'; nc++); - - if (*nc == '=') { - /* ok, found the key of our own cookie */ - - if (strlen(nc) > 32) { - /* i'm lazy */ - return HANDLER_GO_ON; - } - } - } - } - - /* set a cookie */ - if (NULL == (ds = (data_string *)array_get_unused_element(con->response.headers, TYPE_STRING))) { - ds = data_response_init(); - } - buffer_copy_string_len(ds->key, CONST_STR_LEN("Set-Cookie")); - buffer_copy_string_buffer(ds->value, p->conf.cookie_name); - buffer_append_string_len(ds->value, CONST_STR_LEN("=")); - - - /* taken from mod_auth.c */ - - /* generate shared-secret */ - MD5_Init(&Md5Ctx); - MD5_Update(&Md5Ctx, (unsigned char *)con->uri.path->ptr, con->uri.path->used - 1); - MD5_Update(&Md5Ctx, (unsigned char *)"+", 1); - - /* we assume sizeof(time_t) == 4 here, but if not it ain't a problem at all */ - LI_ltostr(hh, srv->cur_ts); - MD5_Update(&Md5Ctx, (unsigned char *)hh, strlen(hh)); - MD5_Update(&Md5Ctx, (unsigned char *)srv->entropy, sizeof(srv->entropy)); - LI_ltostr(hh, rand()); - MD5_Update(&Md5Ctx, (unsigned char *)hh, strlen(hh)); - - MD5_Final(h, &Md5Ctx); - - buffer_append_string_encoded(ds->value, (char *)h, 16, ENCODING_HEX); - buffer_append_string_len(ds->value, CONST_STR_LEN("; Path=/")); - buffer_append_string_len(ds->value, CONST_STR_LEN("; Version=1")); - - if (!buffer_is_empty(p->conf.cookie_domain)) { - buffer_append_string_len(ds->value, CONST_STR_LEN("; Domain=")); - buffer_append_string_encoded(ds->value, CONST_BUF_LEN(p->conf.cookie_domain), ENCODING_REL_URI); - } - - if (p->conf.cookie_max_age) { - buffer_append_string_len(ds->value, CONST_STR_LEN("; max-age=")); - buffer_append_long(ds->value, p->conf.cookie_max_age); - } - - array_insert_unique(con->response.headers, (data_unset *)ds); - - return HANDLER_GO_ON; -} - -/* this function is called at dlopen() time and inits the callbacks */ - -LI_EXPORT int mod_usertrack_plugin_init(plugin *p); -LI_EXPORT int mod_usertrack_plugin_init(plugin *p) { - p->version = LIGHTTPD_VERSION_ID; - p->name = buffer_init_string("usertrack"); - - p->init = mod_usertrack_init; - p->handle_uri_clean = mod_usertrack_uri_handler; - p->set_defaults = mod_usertrack_set_defaults; - p->cleanup = mod_usertrack_free; - - p->data = NULL; - - return 0; -} |