1 | /* |
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2 | * Copyright (C) 2020 Soleta Networks <info@soleta.eu> |
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3 | * |
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4 | * This program is free software: you can redistribute it and/or modify it under |
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5 | * the terms of the GNU Affero General Public License as published by the |
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6 | * Free Software Foundation, version 3. |
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7 | */ |
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8 | |
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9 | #include "json.h" |
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10 | #include "cfg.h" |
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11 | #include "ogAdmServer.h" |
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12 | #include <sys/types.h> |
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13 | #include <sys/stat.h> |
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14 | #include <fcntl.h> |
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15 | #include <unistd.h> |
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16 | #include <syslog.h> |
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17 | |
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18 | static int parse_json_rest(struct og_server_cfg *cfg, json_t *element) |
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19 | { |
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20 | const char *key; |
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21 | json_t *value; |
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22 | |
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23 | json_object_foreach(element, key, value) { |
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24 | if (!strcmp(key, "ip")) { |
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25 | if (og_json_parse_string(value, &cfg->rest.ip) < 0) |
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26 | return -1; |
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27 | } else if (!strcmp(key, "port")) { |
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28 | if (og_json_parse_string(value, &cfg->rest.port) < 0) |
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29 | return -1; |
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30 | } else if (!strcmp(key, "api_token")) { |
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31 | if (og_json_parse_string(value, &cfg->rest.api_token) < 0) |
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32 | return -1; |
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33 | } else { |
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34 | syslog(LOG_ERR, "unknown key `%s' in rest\n", key); |
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35 | return -1; |
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36 | } |
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37 | } |
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38 | |
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39 | return 0; |
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40 | } |
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41 | |
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42 | static int parse_json_db(struct og_server_cfg *cfg, json_t *element) |
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43 | { |
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44 | const char *key; |
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45 | json_t *value; |
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46 | |
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47 | json_object_foreach(element, key, value) { |
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48 | if (!strcmp(key, "ip")) { |
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49 | if (og_json_parse_string(value, &cfg->db.ip) < 0) |
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50 | return -1; |
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51 | } else if (!strcmp(key, "user")) { |
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52 | if (og_json_parse_string(value, &cfg->db.user) < 0) |
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53 | return -1; |
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54 | } else if (!strcmp(key, "pass")) { |
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55 | if (og_json_parse_string(value, &cfg->db.pass) < 0) |
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56 | return -1; |
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57 | } else if (!strcmp(key, "name")) { |
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58 | if (og_json_parse_string(value, &cfg->db.name) < 0) |
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59 | return -1; |
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60 | } else if (!strcmp(key, "port")) { |
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61 | if (og_json_parse_string(value, &cfg->db.port) < 0) |
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62 | return -1; |
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63 | } else { |
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64 | syslog(LOG_ERR, "unknown key `%s' in db\n", key); |
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65 | return -1; |
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66 | } |
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67 | } |
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68 | |
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69 | return 0; |
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70 | } |
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71 | |
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72 | static int parse_json_wol(struct og_server_cfg *cfg, json_t *element) |
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73 | { |
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74 | const char *key; |
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75 | json_t *value; |
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76 | |
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77 | json_object_foreach(element, key, value) { |
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78 | if (!strcmp(key, "interface")) { |
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79 | if (og_json_parse_string(value, &cfg->wol.interface) < 0) |
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80 | return -1; |
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81 | } else { |
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82 | syslog(LOG_ERR, "unknown key `%s' in wol\n", key); |
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83 | return -1; |
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84 | } |
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85 | } |
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86 | |
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87 | return 0; |
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88 | } |
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89 | |
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90 | static int parse_json_repo(struct og_server_cfg *cfg, json_t *element) |
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91 | { |
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92 | const char *key; |
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93 | json_t *value; |
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94 | |
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95 | json_object_foreach(element, key, value) { |
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96 | if (!strcmp(key, "directory")) { |
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97 | if (og_json_parse_string(value, &cfg->repo.dir) < 0) |
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98 | return -1; |
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99 | } else { |
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100 | syslog(LOG_ERR, "unknown key `%s' in repo\n", key); |
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101 | return -1; |
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102 | } |
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103 | } |
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104 | |
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105 | return 0; |
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106 | } |
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107 | |
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108 | #define OG_SERVER_CFG_REST (1 << 0) |
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109 | #define OG_SERVER_CFG_DB (1 << 1) |
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110 | #define OG_SERVER_CFG_WOL (1 << 2) |
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111 | #define OG_SERVER_CFG_REPO (1 << 3) |
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112 | |
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113 | int parse_json_config(const char *filename, struct og_server_cfg *cfg) |
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114 | { |
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115 | json_t *root, *value; |
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116 | uint32_t flags = 0; |
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117 | json_error_t err; |
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118 | const char *key; |
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119 | char buf[4096]; |
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120 | int fd, ret; |
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121 | |
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122 | fd = open(filename, O_RDONLY); |
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123 | if (fd < 0) { |
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124 | syslog(LOG_ERR, "Cannot open %s", filename); |
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125 | return -1; |
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126 | } |
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127 | |
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128 | ret = read(fd, buf, sizeof(buf)); |
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129 | if (ret < 0 || ret == sizeof(buf)) { |
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130 | syslog(LOG_ERR, "Cannot read from %s", filename); |
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131 | return -1; |
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132 | } |
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133 | |
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134 | root = json_loads(buf, 0, &err); |
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135 | if (!root) { |
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136 | syslog(LOG_ERR, "Cannot parse malformed json file"); |
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137 | return -1; |
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138 | } |
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139 | |
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140 | json_object_foreach(root, key, value) { |
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141 | if (!strcmp(key, "rest")) { |
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142 | if (parse_json_rest(cfg, value) < 0) { |
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143 | ret = -1; |
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144 | break; |
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145 | } |
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146 | flags |= OG_SERVER_CFG_REST; |
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147 | } else if (!strcmp(key, "wol")) { |
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148 | if (parse_json_wol(cfg, value) < 0) { |
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149 | ret = -1; |
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150 | break; |
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151 | } |
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152 | flags |= OG_SERVER_CFG_WOL; |
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153 | } else if (!strcmp(key, "database")) { |
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154 | if (parse_json_db(cfg, value) < 0) { |
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155 | ret = -1; |
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156 | break; |
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157 | } |
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158 | flags |= OG_SERVER_CFG_DB; |
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159 | } else if (!strcmp(key, "repository")) { |
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160 | if (parse_json_repo(cfg, value) < 0) |
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161 | return -1; |
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162 | |
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163 | flags |= OG_SERVER_CFG_REPO; |
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164 | } else { |
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165 | syslog(LOG_ERR, "unknown key `%s' in %s\n", |
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166 | key, filename); |
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167 | ret = -1; |
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168 | } |
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169 | } |
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170 | |
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171 | if (ret < 0) |
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172 | json_decref(root); |
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173 | |
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174 | if ((flags & OG_SERVER_CFG_REST) && |
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175 | (flags & OG_SERVER_CFG_DB) && |
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176 | (flags & OG_SERVER_CFG_WOL)) { |
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177 | ret = 0; |
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178 | } else { |
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179 | syslog(LOG_ERR, "Missing attributes in json file"); |
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180 | ret = -1; |
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181 | } |
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182 | |
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183 | if (ret < 0) |
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184 | json_decref(root); |
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185 | else |
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186 | cfg->json = root; |
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187 | |
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188 | return ret; |
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189 | } |
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