1 /*
2 * Copyright (c) 2023-2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "utils.h"
17
18 #include <string.h>
19
20 #include "cf_log.h"
21 #include "cf_memory.h"
22
23 #define MIN_URL_LEN 5
24 #define HTTP_URL_LEN 7
25 #define HTTPS_URL_LEN 8
26
CfIsStrValid(const char * str,uint32_t maxLen)27 bool CfIsStrValid(const char *str, uint32_t maxLen)
28 {
29 if (str == NULL) {
30 LOGE("input string is NULL ptr");
31 return false;
32 }
33 // One byte must be reserved for the terminator.
34 if (strnlen(str, maxLen) >= maxLen) {
35 LOGE("input string is beyond max length");
36 return false;
37 }
38 return true;
39 }
40
CfIsBlobValid(const CfBlob * blob)41 bool CfIsBlobValid(const CfBlob *blob)
42 {
43 return ((blob != NULL) && (blob->data != NULL) && (blob->size > 0));
44 }
45
CfIsClassMatch(const CfObjectBase * obj,const char * className)46 bool CfIsClassMatch(const CfObjectBase *obj, const char *className)
47 {
48 if ((obj == NULL) || (obj->getClass() == NULL) || (className == NULL)) {
49 return false;
50 }
51 if (strcmp(obj->getClass(), className) == 0) {
52 return true;
53 } else {
54 LOGE("class is not match. expect class: %s, input class: %s", className, obj->getClass());
55 return false;
56 }
57 }
58
CfIsPubKeyClassMatch(const HcfObjectBase * obj,const char * className)59 bool CfIsPubKeyClassMatch(const HcfObjectBase *obj, const char *className)
60 {
61 if ((obj == NULL) || (obj->getClass() == NULL) || (className == NULL)) {
62 return false;
63 }
64 if (strcmp(obj->getClass(), className) == 0) {
65 return true;
66 } else {
67 LOGE("class is not match. expect class: %s, input class: %s", className, obj->getClass());
68 return false;
69 }
70 }
71
CfIsUrlValid(const char * url)72 bool CfIsUrlValid(const char *url)
73 {
74 if (url == NULL) {
75 return false;
76 }
77 if (strlen(url) < MIN_URL_LEN) {
78 return false;
79 }
80 if (strncmp(url, "http://", HTTP_URL_LEN) != 0 && strncmp(url, "https://", HTTPS_URL_LEN) != 0) {
81 return false;
82 }
83
84 int httpHeaderLen = (strncmp(url, "http://", HTTP_URL_LEN) == 0) ? HTTP_URL_LEN : HTTPS_URL_LEN;
85 const char *startDomain = url + httpHeaderLen;
86 const char *endDomain = startDomain;
87 while (*endDomain != '\0' && *endDomain != '/') {
88 endDomain++;
89 }
90 if (endDomain == startDomain) {
91 return false;
92 }
93
94 if (*endDomain == '\0') {
95 return true;
96 } else {
97 const char *startPath = endDomain;
98 while (*startPath == '/') {
99 startPath++;
100 }
101 if (*startPath == '\0') {
102 return false;
103 } else {
104 return true;
105 }
106 }
107 }
108
CfIsHttp(const char * url)109 bool CfIsHttp(const char *url)
110 {
111 if (url != NULL && strncmp(url, "http://", strlen("http://")) == 0) {
112 return true;
113 } else {
114 return false;
115 }
116 }