1 #include "utils/make_id_name.hpp"
2
3 #include "utils/dbus_path_utils.hpp"
4
5 #include <sdbusplus/exception.hpp>
6
7 #include <algorithm>
8 #include <system_error>
9
10 namespace utils
11 {
12 namespace details
13 {
14
countDigits(size_t value)15 size_t countDigits(size_t value)
16 {
17 size_t result = 1;
18 while (value >= 10)
19 {
20 ++result;
21 value /= 10;
22 }
23 return result;
24 }
25
generateId(std::string_view idIn,std::string_view nameIn,std::string_view defaultName,const std::vector<std::string> & conflictIds)26 std::string generateId(std::string_view idIn, std::string_view nameIn,
27 std::string_view defaultName,
28 const std::vector<std::string>& conflictIds)
29 {
30 verifyIdCharacters(idIn);
31 verifyIdPrefixes(idIn);
32
33 if (!idIn.empty() && !idIn.ends_with('/'))
34 {
35 if (std::find(conflictIds.begin(), conflictIds.end(), idIn) !=
36 conflictIds.end())
37 {
38 throw sdbusplus::exception::SdBusError(
39 static_cast<int>(std::errc::file_exists), "Duplicated id");
40 }
41 return std::string(idIn);
42 }
43
44 const std::string prefixes(idIn);
45
46 std::string strippedId(nameIn);
47 if (strippedId.find_first_of(utils::constants::allowedCharactersInPath) ==
48 std::string::npos)
49 {
50 strippedId = defaultName;
51 }
52 strippedId.erase(
53 std::remove_if(
54 strippedId.begin(), strippedId.end(),
55 [](char c) {
56 return c == '/' ||
57 utils::constants::allowedCharactersInPath.find(c) ==
58 std::string_view::npos;
59 }),
60 strippedId.end());
61
62 size_t idx = 0;
63 std::string tmpId =
64 prefixes + strippedId.substr(0, constants::maxIdNameLength);
65
66 while (std::find(conflictIds.begin(), conflictIds.end(), tmpId) !=
67 conflictIds.end())
68 {
69 size_t digitsInIdx = countDigits(idx);
70
71 if (digitsInIdx > constants::maxIdNameLength)
72 {
73 throw sdbusplus::exception::SdBusError(
74 static_cast<int>(std::errc::file_exists),
75 "Unique indices are depleted");
76 }
77
78 tmpId = prefixes +
79 strippedId.substr(0, constants::maxIdNameLength - digitsInIdx) +
80 std::to_string(idx);
81 ++idx;
82 }
83
84 return tmpId;
85 }
86
87 } // namespace details
88
makeIdName(std::string_view id,std::string_view name,std::string_view defaultName,const std::vector<std::string> & conflictIds)89 std::pair<std::string, std::string> makeIdName(
90 std::string_view id, std::string_view name, std::string_view defaultName,
91 const std::vector<std::string>& conflictIds)
92 {
93 if (name.length() > constants::maxIdNameLength)
94 {
95 throw errors::InvalidArgument("Name", "Too long.");
96 }
97
98 if (name.empty() && !id.ends_with('/'))
99 {
100 name = id;
101
102 if (auto pos = name.find_last_of("/"); pos != std::string::npos)
103 {
104 name = name.substr(pos + 1);
105 }
106
107 name = name.substr(0, constants::maxIdNameLength);
108 }
109
110 if (name.empty())
111 {
112 name = defaultName;
113 }
114
115 return std::make_pair(
116 details::generateId(id, name, defaultName, conflictIds),
117 std::string{name});
118 }
119
120 } // namespace utils
121