X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fafb-hreq.c;h=a4ccf6767de6528c91044ef1ca2effba5db767b3;hb=c44a48f295de04e4d0385b05d1afd93fac898d10;hp=518bc5cb50eb59ed1723f44c2429b3f979314d53;hpb=f1b901ed676b2d45ec8e6ae3d6ef2f94d79f9ee6;p=src%2Fapp-framework-binder.git diff --git a/src/afb-hreq.c b/src/afb-hreq.c index 518bc5cb..a4ccf676 100644 --- a/src/afb-hreq.c +++ b/src/afb-hreq.c @@ -1,5 +1,5 @@ /* - * Copyright 2016 IoT.bzh + * Copyright (C) 2016 "IoT.bzh" * Author: José Bollo * * Licensed under the Apache License, Version 2.0 (the "License"); @@ -26,17 +26,18 @@ #include #include -#include +#include #if defined(USE_MAGIC_MIME_TYPE) #include #endif #include "afb-method.h" -#include "afb-req-itf.h" +#include #include "afb-msg-json.h" #include "afb-context.h" #include "afb-hreq.h" +#include "afb-subcall.h" #include "session.h" #include "verbose.h" @@ -44,13 +45,14 @@ static char empty_string[] = ""; -static const char uuid_header[] = "x-afb-uuid"; -static const char uuid_arg[] = "uuid"; -static const char uuid_cookie[] = "uuid"; +static const char long_key_for_uuid[] = "x-afb-uuid"; +static const char short_key_for_uuid[] = "uuid"; -static const char token_header[] = "x-afb-token"; -static const char token_arg[] = "token"; -static const char token_cookie[] = "token"; +static const char long_key_for_token[] = "x-afb-token"; +static const char short_key_for_token[] = "token"; + +static const char long_key_for_reqid[] = "x-afb-reqid"; +static const char short_key_for_reqid[] = "reqid"; static char *cookie_name = NULL; static char *cookie_setter = NULL; @@ -73,8 +75,10 @@ static void req_fail(struct afb_hreq *hreq, const char *status, const char *info static void req_success(struct afb_hreq *hreq, json_object *obj, const char *info); static const char *req_raw(struct afb_hreq *hreq, size_t *size); static void req_send(struct afb_hreq *hreq, const char *buffer, size_t size); +static int req_subscribe_unsubscribe_error(struct afb_hreq *hreq, struct afb_event event); +static void req_subcall(struct afb_hreq *hreq, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*), void *closure); -static const struct afb_req_itf afb_hreq_itf = { +const struct afb_req_itf afb_hreq_req_itf = { .json = (void*)req_json, .get = (void*)req_get, .success = (void*)req_success, @@ -84,7 +88,12 @@ static const struct afb_req_itf afb_hreq_itf = { .context_get = (void*)afb_context_get, .context_set = (void*)afb_context_set, .addref = (void*)afb_hreq_addref, - .unref = (void*)afb_hreq_unref + .unref = (void*)afb_hreq_unref, + .session_close = (void*)afb_context_close, + .session_set_LOA = (void*)afb_context_change_loa, + .subscribe = (void*)req_subscribe_unsubscribe_error, + .unsubscribe = (void*)req_subscribe_unsubscribe_error, + .subcall = (void*)req_subcall }; static struct hreq_data *get_data(struct afb_hreq *hreq, const char *key, int create) @@ -234,18 +243,15 @@ static magic_t lazy_libmagic() done = 1; /* MAGIC_MIME tells magic to return a mime of the file, but you can specify different things */ - if (verbosity) - fprintf(stderr, "Loading mimetype default magic database\n"); - + INFO("Loading mimetype default magic database"); result = magic_open(MAGIC_MIME_TYPE); if (result == NULL) { - fprintf(stderr,"ERROR: unable to initialize magic library\n"); + ERROR("unable to initialize magic library"); } /* Warning: should not use NULL for DB [libmagic bug wont pass efence check] */ else if (magic_load(result, MAGIC_DB) != 0) { - fprintf(stderr,"cannot load magic database - %s\n", - magic_error(result)); + ERROR("cannot load magic database: %s", magic_error(result)); magic_close(result); result = NULL; } @@ -353,13 +359,29 @@ void afb_hreq_reply_error(struct afb_hreq *hreq, unsigned int status) afb_hreq_reply_empty(hreq, status, NULL); } +int afb_hreq_redirect_to_ending_slash_if_needed(struct afb_hreq *hreq) +{ + char *tourl; + + if (hreq->url[hreq->lenurl - 1] == '/') + return 0; + + /* the redirect is needed for reliability of relative path */ + tourl = alloca(hreq->lenurl + 2); + memcpy(tourl, hreq->url, hreq->lenurl); + tourl[hreq->lenurl] = '/'; + tourl[hreq->lenurl + 1] = 0; + afb_hreq_redirect_to(hreq, tourl, 1); + return 1; +} + int afb_hreq_reply_file_if_exist(struct afb_hreq *hreq, int dirfd, const char *filename) { int rc; int fd; unsigned int status; struct stat st; - char etag[1 + 2 * sizeof(int)]; + char etag[1 + 2 * 8]; const char *inm; struct MHD_Response *response; const char *mimetype; @@ -390,24 +412,17 @@ int afb_hreq_reply_file_if_exist(struct afb_hreq *hreq, int dirfd, const char *f /* serve directory */ if (S_ISDIR(st.st_mode)) { - static const char *indexes[] = { "index.html", NULL }; - int i = 0; - rc = 0; - while (indexes[i] != NULL) { - if (faccessat(fd, indexes[i], R_OK, 0) == 0) { - if (hreq->url[hreq->lenurl - 1] != '/') { - /* the redirect is needed for reliability of relative path */ - char *tourl = alloca(hreq->lenurl + 2); - memcpy(tourl, hreq->url, hreq->lenurl); - tourl[hreq->lenurl] = '/'; - tourl[hreq->lenurl + 1] = 0; - rc = afb_hreq_redirect_to(hreq, tourl); - } else { + rc = afb_hreq_redirect_to_ending_slash_if_needed(hreq); + if (rc == 0) { + static const char *indexes[] = { "index.html", NULL }; + int i = 0; + while (indexes[i] != NULL) { + if (faccessat(fd, indexes[i], R_OK, 0) == 0) { rc = afb_hreq_reply_file_if_exist(hreq, fd, indexes[i]); + break; } - break; + i++; } - i++; } close(fd); return rc; @@ -435,8 +450,7 @@ int afb_hreq_reply_file_if_exist(struct afb_hreq *hreq, int dirfd, const char *f if (inm && 0 == strcmp(inm, etag)) { /* etag ok, return NOT MODIFIED */ close(fd); - if (verbosity) - fprintf(stderr, "Not Modified: [%s]\n", filename); + DEBUG("Not Modified: [%s]", filename); response = MHD_create_response_from_buffer(0, empty_string, MHD_RESPMEM_PERSISTENT); status = MHD_HTTP_NOT_MODIFIED; } else { @@ -473,15 +487,105 @@ int afb_hreq_reply_file(struct afb_hreq *hreq, int dirfd, const char *filename) return 1; } -int afb_hreq_redirect_to(struct afb_hreq *hreq, const char *url) +struct _mkq_ { + int count; + size_t length; + size_t alloc; + char *text; +}; + +static void _mkq_add_(struct _mkq_ *mkq, char value) +{ + char *text = mkq->text; + if (text != NULL) { + if (mkq->length == mkq->alloc) { + mkq->alloc += 100; + text = realloc(text, mkq->alloc); + if (text == NULL) { + free(mkq->text); + mkq->text = NULL; + return; + } + mkq->text = text; + } + text[mkq->length++] = value; + } +} + +static void _mkq_add_hex_(struct _mkq_ *mkq, char value) { - afb_hreq_reply_static(hreq, MHD_HTTP_MOVED_PERMANENTLY, 0, NULL, - MHD_HTTP_HEADER_LOCATION, url, NULL); - if (verbosity) - fprintf(stderr, "redirect from [%s] to [%s]\n", hreq->url, url); + _mkq_add_(mkq, (char)(value < 10 ? value + '0' : value + 'A' - 10)); +} + +static void _mkq_add_esc_(struct _mkq_ *mkq, char value) +{ + _mkq_add_(mkq, '%'); + _mkq_add_hex_(mkq, (char)((value >> 4) & 15)); + _mkq_add_hex_(mkq, (char)(value & 15)); +} + +static void _mkq_add_char_(struct _mkq_ *mkq, char value) +{ + if (value <= ' ' || value >= 127) + _mkq_add_esc_(mkq, value); + else + switch(value) { + case '=': + case '&': + case '%': + _mkq_add_esc_(mkq, value); + break; + default: + _mkq_add_(mkq, value); + } +} + +static void _mkq_append_(struct _mkq_ *mkq, const char *value) +{ + while(*value) + _mkq_add_char_(mkq, *value++); +} + +static int _mkquery_(struct _mkq_ *mkq, enum MHD_ValueKind kind, const char *key, const char *value) +{ + _mkq_add_(mkq, mkq->count++ ? '&' : '?'); + _mkq_append_(mkq, key); + if (value != NULL) { + _mkq_add_(mkq, '='); + _mkq_append_(mkq, value); + } return 1; } +static char *url_with_query(struct afb_hreq *hreq, const char *url) +{ + struct _mkq_ mkq; + + mkq.count = 0; + mkq.length = strlen(url); + mkq.alloc = mkq.length + 1000; + mkq.text = malloc(mkq.alloc); + if (mkq.text != NULL) { + strcpy(mkq.text, url); + MHD_get_connection_values(hreq->connection, MHD_GET_ARGUMENT_KIND, (void*)_mkquery_, &mkq); + _mkq_add_(&mkq, 0); + } + return mkq.text; +} + +void afb_hreq_redirect_to(struct afb_hreq *hreq, const char *url, int add_query_part) +{ + const char *to; + char *wqp; + + wqp = add_query_part ? url_with_query(hreq, url) : NULL; + to = wqp ? : url; + afb_hreq_reply_static(hreq, MHD_HTTP_MOVED_PERMANENTLY, 0, NULL, + MHD_HTTP_HEADER_LOCATION, to, NULL); + DEBUG("redirect from [%s] to [%s]", hreq->url, url); + free(wqp); +} + const char *afb_hreq_get_cookie(struct afb_hreq *hreq, const char *name) { return MHD_lookup_connection_value(hreq->connection, MHD_COOKIE_KIND, name); @@ -607,11 +711,12 @@ int afb_hreq_post_add_file(struct afb_hreq *hreq, const char *key, const char *f struct afb_req afb_hreq_to_req(struct afb_hreq *hreq) { - return (struct afb_req){ .itf = &afb_hreq_itf, .closure = hreq }; + return (struct afb_req){ .itf = &afb_hreq_req_itf, .closure = hreq }; } static struct afb_arg req_get(struct afb_hreq *hreq, const char *name) { + const char *value; struct hreq_data *hdat = get_data(hreq, name, 0); if (hdat) return (struct afb_arg){ @@ -619,10 +724,11 @@ static struct afb_arg req_get(struct afb_hreq *hreq, const char *name) .value = hdat->value, .path = hdat->path }; - + + value = MHD_lookup_connection_value(hreq->connection, MHD_GET_ARGUMENT_KIND, name); return (struct afb_arg){ - .name = name, - .value = MHD_lookup_connection_value(hreq->connection, MHD_GET_ARGUMENT_KIND, name), + .name = value == NULL ? NULL : name, + .value = value, .path = NULL }; } @@ -676,21 +782,23 @@ static void req_send(struct afb_hreq *hreq, const char *buffer, size_t size) static ssize_t send_json_cb(json_object *obj, uint64_t pos, char *buf, size_t max) { - ssize_t len = stpncpy(buf, json_object_to_json_string(obj)+pos, max) - buf; + ssize_t len = stpncpy(buf, json_object_to_json_string_ext(obj, JSON_C_TO_STRING_PLAIN)+pos, max) - buf; return len ? : (ssize_t)MHD_CONTENT_READER_END_OF_STREAM; } static void req_reply(struct afb_hreq *hreq, unsigned retcode, const char *status, const char *info, json_object *resp) { struct json_object *reply; - const char *token, *uuid; + const char *reqid; struct MHD_Response *response; - token = afb_context_sent_token(&hreq->context); - uuid = afb_context_sent_uuid(&hreq->context); + reqid = afb_hreq_get_argument(hreq, long_key_for_reqid); + if (reqid == NULL) + reqid = afb_hreq_get_argument(hreq, short_key_for_reqid); + + reply = afb_msg_json_reply(status, info, resp, &hreq->context, reqid); - reply = afb_msg_json_reply(status, info, resp, token, uuid); - response = MHD_create_response_from_callback((uint64_t)strlen(json_object_to_json_string(reply)), SIZE_RESPONSE_BUFFER, (void*)send_json_cb, reply, (void*)json_object_put); + response = MHD_create_response_from_callback((uint64_t)strlen(json_object_to_json_string_ext(reply, JSON_C_TO_STRING_PLAIN)), SIZE_RESPONSE_BUFFER, (void*)send_json_cb, reply, (void*)json_object_put); afb_hreq_reply(hreq, retcode, response, NULL); } @@ -704,6 +812,17 @@ static void req_success(struct afb_hreq *hreq, json_object *obj, const char *inf req_reply(hreq, MHD_HTTP_OK, "success", info, obj); } +static int req_subscribe_unsubscribe_error(struct afb_hreq *hreq, struct afb_event event) +{ + errno = EINVAL; + return -1; +} + +static void req_subcall(struct afb_hreq *hreq, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*), void *closure) +{ + afb_subcall(&hreq->context, api, verb, args, callback, closure, (struct afb_req){ .itf = &afb_hreq_req_itf, .closure = hreq }); +} + int afb_hreq_init_context(struct afb_hreq *hreq) { const char *uuid; @@ -712,17 +831,19 @@ int afb_hreq_init_context(struct afb_hreq *hreq) if (hreq->context.session != NULL) return 0; - uuid = afb_hreq_get_header(hreq, uuid_header); + uuid = afb_hreq_get_header(hreq, long_key_for_uuid); if (uuid == NULL) - uuid = afb_hreq_get_argument(hreq, uuid_arg); + uuid = afb_hreq_get_argument(hreq, long_key_for_uuid); if (uuid == NULL) uuid = afb_hreq_get_cookie(hreq, cookie_name); + if (uuid == NULL) + uuid = afb_hreq_get_argument(hreq, short_key_for_uuid); - token = afb_hreq_get_header(hreq, token_header); + token = afb_hreq_get_header(hreq, long_key_for_token); if (token == NULL) - token = afb_hreq_get_argument(hreq, token_arg); + token = afb_hreq_get_argument(hreq, long_key_for_token); if (token == NULL) - token = afb_hreq_get_cookie(hreq, token_cookie); + token = afb_hreq_get_argument(hreq, short_key_for_token); return afb_context_connect(&hreq->context, uuid, token); } @@ -737,7 +858,7 @@ int afb_hreq_init_cookie(int port, const char *path, int maxage) cookie_setter = NULL; path = path ? : "/"; - rc = asprintf(&cookie_name, "x-afb-uuid-%d", port); + rc = asprintf(&cookie_name, "%s-%d", long_key_for_uuid, port); if (rc < 0) return 0; rc = asprintf(&cookie_setter, "%s=%%s; Path=%s; Max-Age=%d; HttpOnly",