1 | //FIXME Not checked on threadsafety yet; after checking please remove this line
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2 | #include "globals.h"
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3 | #ifdef WEBIF
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4 | #include "oscam-http.h"
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5 |
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6 | /* Adds a name->value-mapping or appends to it. You will get a reference back which you may freely
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7 | use (but you should not call free/realloc on this!)*/
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8 | char *tpl_addVar(struct templatevars *vars, int append, char *name, char *value){
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9 | if(name == NULL || value == NULL) return "";
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10 | int i;
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11 | char *tmp,*result = NULL;
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12 | for(i = (*vars).varscnt-1; i >= 0; --i){
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13 | if(strcmp((*vars).names[i], name) == 0){
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14 | result = (*vars).values[i];
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15 | break;
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16 | }
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17 | }
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18 | if(result == NULL){
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19 | if((*vars).varsalloc <= (*vars).varscnt){
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20 | if(!cs_realloc(&(*vars).names, (*vars).varsalloc * 2 * sizeof(char**), -1)) return value;
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21 | if(!cs_realloc(&(*vars).values, (*vars).varsalloc * 2 * sizeof(char**), -1)) return value;
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22 | (*vars).varsalloc = (*vars).varscnt * 2;
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23 | }
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24 | if(!cs_malloc(&tmp,(strlen(name) + 1) * sizeof(char), -1)) return value;
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25 | strcpy(tmp, name);
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26 | (*vars).names[(*vars).varscnt] = tmp;
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27 | if(!cs_malloc(&tmp,(strlen(value) + 1) * sizeof(char), -1)){
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28 | free((*vars).names[(*vars).varscnt]);
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29 | return value;
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30 | }
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31 | strcpy(tmp, value);
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32 | (*vars).values[(*vars).varscnt] = tmp;
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33 | (*vars).varscnt = (*vars).varscnt + 1;
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34 | } else {
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35 | int newlen = strlen(value);
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36 | if(append == 1){
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37 | int oldlen = strlen((*vars).values[i]);
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38 | if(!cs_malloc(&tmp, (oldlen + newlen + 1) * sizeof(char), -1)) return value;
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39 | memcpy(tmp, (*vars).values[i], oldlen);
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40 | strcpy(tmp + oldlen, value);
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41 | } else {
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42 | if(!cs_malloc(&tmp, (newlen + 1) * sizeof(char), -1)) return value;
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43 | strcpy(tmp, value);
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44 | }
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45 | free((*vars).values[i]);
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46 | (*vars).values[i] = tmp;
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47 | }
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48 | return tmp;
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49 | }
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50 |
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51 | /* Allows to add a char array which has been allocated by malloc. It will automatically get
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52 | freed when calling tpl_clear(). Please do NOT free the memory yourself or realloc
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53 | it after having added the array here! */
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54 | char *tpl_addTmp(struct templatevars *vars, char *value){
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55 | if(value == NULL) return "";
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56 | if((*vars).tmpalloc <= (*vars).tmpcnt){
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57 | if(!cs_realloc (&(*vars).tmp, (*vars).tmpalloc * 2 * sizeof(char**), -1)) return value;
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58 | (*vars).tmpalloc = (*vars).tmpcnt * 2;
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59 | }
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60 | (*vars).tmp[(*vars).tmpcnt] = value;
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61 | (*vars).tmpcnt++;
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62 | return value;
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63 | }
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64 |
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65 | /* Allows to do a dynamic printf without knowing and defining the needed memory size. If you specify
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66 | varname, the printf-result will be added/appended to the varlist, if varname=NULL it will only be returned.
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67 | In either case you will always get a reference back which you may freely use (but you should not call
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68 | free/realloc on this as it will be automatically cleaned!)*/
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69 | char *tpl_printf(struct templatevars *vars, int append, char *varname, char *fmtstring, ...){
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70 | unsigned int needed;
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71 | char test[1];
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72 | va_list argptr;
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73 |
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74 | va_start(argptr,fmtstring);
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75 | needed = vsnprintf(test, 1, fmtstring, argptr);
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76 | va_end(argptr);
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77 |
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78 | char *result;
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79 | if(!cs_malloc(&result, (needed + 1) * sizeof(char), -1)) return "";
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80 | va_start(argptr,fmtstring);
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81 | vsnprintf(result, needed + 1, fmtstring, argptr);
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82 | va_end(argptr);
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83 |
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84 | if(varname == NULL) tpl_addTmp(vars, result);
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85 | else {
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86 | char *tmp = tpl_addVar(vars, append, varname, result);
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87 | free(result);
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88 | result = tmp;
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89 | }
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90 | return result;
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91 | }
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92 |
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93 | /* Returns the value for a name or an empty string if nothing was found. */
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94 | char *tpl_getVar(struct templatevars *vars, char *name){
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95 | int i;
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96 | char *result = NULL;
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97 | for(i = (*vars).varscnt-1; i >= 0; --i){
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98 | if(strcmp((*vars).names[i], name) == 0){
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99 | result = (*vars).values[i];
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100 | break;
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101 | }
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102 | }
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103 | if(result == NULL) return "";
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104 | else return result;
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105 | }
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106 |
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107 | /* Initializes all variables for a templatevar-structure and returns a pointer to it. Make
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108 | sure to call tpl_clear() when you are finished or you'll run into a memory leak! */
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109 | struct templatevars *tpl_create(){
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110 | struct templatevars *vars;
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111 | if(!cs_malloc(&vars, sizeof(struct templatevars), -1)) return NULL;
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112 | (*vars).varsalloc = 64;
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113 | (*vars).varscnt = 0;
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114 | (*vars).tmpalloc = 64;
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115 | (*vars).tmpcnt = 0;
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116 | if(!cs_malloc(&(*vars).names, (*vars).varsalloc * sizeof(char**), -1)){
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117 | free(vars);
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118 | return NULL;
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119 | }
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120 | if(!cs_malloc(&(*vars).values, (*vars).varsalloc * sizeof(char**), -1)){
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121 | free((*vars).names);
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122 | free(vars);
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123 | return NULL;
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124 | };
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125 | if(!cs_malloc(&(*vars).tmp, (*vars).tmpalloc * sizeof(char**), -1)){
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126 | free((*vars).names);
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127 | free((*vars).values);
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128 | free(vars);
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129 | return NULL;
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130 | };
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131 | return vars;
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132 | }
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133 |
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134 | /* Clears all allocated memory for the specified templatevar-structure. */
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135 | void tpl_clear(struct templatevars *vars){
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136 | int i;
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137 | for(i = (*vars).varscnt-1; i >= 0; --i){
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138 | free((*vars).names[i]);
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139 | free((*vars).values[i]);
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140 | }
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141 | free((*vars).names);
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142 | free((*vars).values);
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143 | for(i = (*vars).tmpcnt-1; i >= 0; --i){
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144 | free((*vars).tmp[i]);
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145 | }
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146 | free((*vars).tmp);
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147 | free(vars);
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148 | }
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149 |
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150 | /* Creates a path to a template file. You need to set the resultsize to the correct size of result. */
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151 | char *tpl_getTplPath(const char *name, const char *path, char *result, unsigned int resultsize){
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152 | char *pch;
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153 | if((strlen(path) + strlen(name) + 6) <= resultsize){
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154 | snprintf(result, resultsize, "%s%s.tpl", path, name);
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155 | for(pch = result + strlen(path); pch[0] != '\0'; ++pch){
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156 | if(pch[0] == '/' || pch[0] == '\\') pch[0] = ' ';
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157 | }
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158 | } else result[0] = '\0';
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159 | return result;
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160 | }
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161 |
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162 | /* Returns an unparsed template either from disk or from internal templates.
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163 | Note: You must free() the result after using it and you may get NULL if an error occured!*/
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164 | char *tpl_getUnparsedTpl(const char* name){
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165 | int i;
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166 | int tplcnt = sizeof(tpl)/sizeof(char *);
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167 | int tplmapcnt = sizeof(tplmap)/sizeof(char *);
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168 | char *result;
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169 |
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170 | for(i = 0; i < tplcnt; ++i){
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171 | if(strcmp(name, tpl[i]) == 0) break;
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172 | }
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173 |
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174 | if(strlen(cfg->http_tpl) > 0){
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175 | char path[255];
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176 | if(strlen(tpl_getTplPath(name, cfg->http_tpl, path, 255)) > 0 && file_exists(path)){
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177 | FILE *fp;
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178 | char buffer[1024];
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179 | int read, allocated = 1025, size = 0;
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180 | if(!cs_malloc(&result, allocated * sizeof(char), -1)) return NULL;
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181 | if((fp = fopen(path,"r"))!=NULL){
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182 | while((read = fread(&buffer,sizeof(char),1024,fp)) > 0){
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183 | if(allocated < size + read + 1) {
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184 | allocated += size + 1024;
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185 | if(!cs_realloc(&result, allocated * sizeof(char), -1)) return NULL;
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186 | }
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187 | memcpy(result + size, buffer, read);
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188 | size += read;
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189 | }
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190 | result[size] = '\0';
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191 | fclose (fp);
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192 | return result;
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193 | }
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194 | }
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195 | }
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196 | if(i >= 0 && i < tplmapcnt){
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197 | int len = (strlen(tplmap[i])) + 1;
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198 | if(!cs_malloc(&result, len * sizeof(char), -1)) return NULL;
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199 | memcpy(result, tplmap[i], len);
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200 | } else {
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201 | if(!cs_malloc(&result, 1 * sizeof(char), -1)) return NULL;
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202 | result[0] = '\0';
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203 | }
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204 | return result;
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205 | }
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206 |
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207 | /* Returns the specified template with all variables/other templates replaced or an
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208 | empty string if the template doesn't exist. Do not free the result yourself, it
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209 | will get automatically cleaned up! */
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210 | char *tpl_getTpl(struct templatevars *vars, const char* name){
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211 | char *tplorg = tpl_getUnparsedTpl(name);
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212 | if(!tplorg) return "";
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213 | char *tplend = tplorg + strlen(tplorg);
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214 | char *pch, *pch2, *tpl=tplorg;
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215 | char varname[33];
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216 |
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217 | int tmp,respos = 0;
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218 | int allocated = 2 * strlen(tpl) + 1;
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219 | char *result;
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220 | if(!cs_malloc(&result, allocated * sizeof(char), -1)) return "";
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221 |
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222 | while(tpl < tplend){
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223 | if(tpl[0] == '#' && tpl[1] == '#' && tpl[2] != '#'){
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224 | pch2 = tpl;
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225 | pch = tpl + 2;
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226 | while(pch[0] != '\0' && (pch[0] != '#' || pch[1] != '#')) ++pch;
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227 | if(pch - pch2 < 32 && pch[0] == '#' && pch[1] == '#'){
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228 | memcpy(varname, pch2 + 2, pch - pch2 - 2);
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229 | varname[pch - pch2 - 2] = '\0';
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230 | if(strncmp(varname, "TPL", 3) == 0){
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231 | pch2 = tpl_getTpl(vars, varname + 3);
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232 | } else {
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233 | pch2 = tpl_getVar(vars, varname);
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234 | }
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235 | tmp = strlen(pch2);
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236 | if(tmp + respos + 2 >= allocated){
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237 | allocated = tmp + respos + 256;
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238 | if(!cs_realloc(&result, allocated * sizeof(char), -1)) return "";
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239 | }
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240 | memcpy(result + respos, pch2, tmp);
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241 | respos += tmp;
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242 | tpl = pch + 2;
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243 | }
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244 | } else {
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245 | if(respos + 2 >= allocated){
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246 | allocated = respos + 256;
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247 | if(!cs_realloc(&result, allocated * sizeof(char), -1)) return "";
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248 | }
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249 | result[respos] = tpl[0];
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250 | ++respos;
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251 | ++tpl;
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252 | }
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253 | }
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254 | free(tplorg);
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255 | result[respos] = '\0';
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256 | tpl_addTmp(vars, result);
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257 | return result;
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258 | }
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259 |
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260 | /* Saves all templates to the specified paths. Existing files will be overwritten! */
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261 | int tpl_saveIncludedTpls(const char *path){
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262 | int tplcnt = sizeof(tpl)/sizeof(char *);
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263 | int tplmapcnt = sizeof(tplmap)/sizeof(char *);
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264 | int i, cnt = 0;
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265 | char tmp[256];
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266 | FILE *fp;
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267 | for(i = 0; i < tplcnt && i < tplmapcnt; ++i){
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268 | if(strlen(tpl_getTplPath(tpl[i], path, tmp, 256)) > 0 && (fp = fopen(tmp,"w")) != NULL){
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269 | fwrite(tplmap[i], sizeof(char), strlen(tplmap[i]), fp);
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270 | fclose (fp);
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271 | ++cnt;
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272 | }
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273 | }
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274 | return cnt;
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275 | }
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276 |
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277 | /* Parses a value in an authentication string by removing all quotes/whitespace. Note that the original array is modified. */
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278 | char *parse_auth_value(char *value){
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279 | char *pch = value;
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280 | char *pch2;
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281 | value = strstr(value, "=");
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282 | if(value != NULL){
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283 | do{
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284 | ++value;
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285 | } while (value[0] == ' ' || value[0] == '"');
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286 | pch = value;
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287 | for(pch2 = value + strlen(value) - 1; pch2 >= value && (pch2[0] == ' ' || pch2[0] == '"' || pch2[0] == '\r' || pch2[0] == '\n'); --pch2) pch2[0] = '\0';
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288 | }
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289 | return pch;
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290 | }
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291 |
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292 | /* Calculates the currently valid nonce value and copies it to result. Please note that result needs to be at least (MD5_DIGEST_LENGTH * 2) + 1 large. */
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293 | void calculate_nonce(char *result){
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294 | char noncetmp[128];
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295 | unsigned char md5tmp[MD5_DIGEST_LENGTH];
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296 | sprintf(noncetmp, "%d:%s", (int)time(NULL)/AUTHNONCEVALIDSECS, noncekey);
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297 | char_to_hex(MD5((unsigned char*)noncetmp, strlen(noncetmp), md5tmp), MD5_DIGEST_LENGTH, (unsigned char*)result);
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298 | }
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299 |
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300 | /* Checks if authentication is correct. Returns -1 if not correct, 1 if correct and 2 if nonce isn't valid anymore.
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301 | Note that authstring will be modified. */
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302 | int check_auth(char *authstring, char *method, char *path, char *expectednonce){
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303 | int authok = 0, uriok = 0;
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304 | char *authnonce = "";
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305 | char *authnc = "";
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306 | char *authcnonce = "";
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307 | char *authresponse = "";
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308 | char *uri = "";
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309 | char *username = "";
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310 | char *expectedPassword = cfg->http_pwd;
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311 | char *pch = authstring + 22;
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312 | char *pch2;
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313 |
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314 | pch = strtok (pch,",");
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315 | while (pch != NULL){
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316 | pch2 = pch;
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317 | while(pch2[0] == ' ' && pch2[0] != '\0') ++pch2;
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318 | if(strncmp(pch2, "nonce", 5) == 0){
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319 | authnonce=parse_auth_value(pch2);
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320 | } else if (strncmp(pch2, "nc", 2) == 0){
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321 | authnc=parse_auth_value(pch2);
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322 | } else if (strncmp(pch2, "cnonce", 6) == 0){
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323 | authcnonce=parse_auth_value(pch2);
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324 | } else if (strncmp(pch2, "response", 8) == 0){
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325 | authresponse=parse_auth_value(pch2);
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326 | } else if (strncmp(pch2, "uri", 3) == 0){
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327 | uri=parse_auth_value(pch2);
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328 | } else if (strncmp(pch2, "username", 8) == 0){
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329 | username=parse_auth_value(pch2);
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330 | }
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331 | pch = strtok (NULL, ",");
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332 | }
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333 |
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334 | if(strncmp(uri, path, strlen(path)) == 0) uriok = 1;
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335 | else {
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336 | pch2 = uri;
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337 | for(pch = uri; pch[0] != '\0'; ++pch) {
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338 | if(pch[0] == '/') pch2 = pch;
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339 | }
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340 | if(strncmp(pch2, path, strlen(path)) == 0) uriok = 1;
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341 | }
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342 | if(uriok == 1 && strcmp(username, cfg->http_user) == 0){
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343 | char A1tmp[3 + strlen(username) + strlen(AUTHREALM) + strlen(expectedPassword)];
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344 | char A1[(MD5_DIGEST_LENGTH * 2) + 1], A2[(MD5_DIGEST_LENGTH * 2) + 1], A3[(MD5_DIGEST_LENGTH * 2) + 1];
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345 | unsigned char md5tmp[MD5_DIGEST_LENGTH];
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346 | sprintf(A1tmp, "%s:%s:%s", username, AUTHREALM, expectedPassword);
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347 | char_to_hex(MD5((unsigned char*)A1tmp, strlen(A1tmp), md5tmp), MD5_DIGEST_LENGTH, (unsigned char*)A1);
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348 |
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349 | char A2tmp[2 + strlen(method) + strlen(uri)];
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350 | sprintf(A2tmp, "%s:%s", method, uri);
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351 | char_to_hex(MD5((unsigned char*)A2tmp, strlen(A2tmp), md5tmp), MD5_DIGEST_LENGTH, (unsigned char*)A2);
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352 |
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353 | char A3tmp[10 + strlen(A1) + strlen(A2) + strlen(authnonce) + strlen(authnc) + strlen(authcnonce)];
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354 | sprintf(A3tmp, "%s:%s:%s:%s:auth:%s", A1, authnonce, authnc, authcnonce, A2);
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355 | char_to_hex(MD5((unsigned char*)A3tmp, strlen(A3tmp), md5tmp), MD5_DIGEST_LENGTH, (unsigned char*)A3);
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356 |
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357 | if(strcmp(A3, authresponse) == 0) {
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358 | if(strcmp(expectednonce, authnonce) == 0) authok = 1;
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359 | else authok = 2;
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360 | }
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361 | }
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362 | return authok;
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363 | }
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364 |
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365 | #ifdef WITH_SSL
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366 | #include <openssl/crypto.h>
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367 | #include <openssl/ssl.h>
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368 | #include <openssl/err.h>
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369 | #endif
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370 |
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371 | int webif_write_raw(char *buf, FILE* f, int len) {
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372 | #ifdef WITH_SSL
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373 | if (cfg->http_use_ssl) {
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374 | return SSL_write((SSL*)f, buf, len);
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375 | } else
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376 | #endif
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377 | return fwrite(buf, 1, len, f);
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378 | }
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379 |
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380 | int webif_write(char *buf, FILE* f) {
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381 | return webif_write_raw(buf, f, strlen(buf));
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382 | }
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383 |
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384 | int webif_read(char *buf, int num, FILE *f) {
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385 | #ifdef WITH_SSL
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386 | if (cfg->http_use_ssl) {
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387 | return SSL_read((SSL*)f, buf, num);
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388 | } else
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389 | #endif
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390 | return read(fileno(f), buf, num);
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391 | }
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392 |
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393 | void send_headers(FILE *f, int status, char *title, char *extra, char *mime, int cache){
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394 | time_t now;
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395 | char timebuf[32];
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396 | char buf[sizeof(PROTOCOL) + sizeof(SERVER) + strlen(title) + (extra == NULL?0:strlen(extra)+2) + (mime == NULL?0:strlen(mime)+2) + 256];
|
---|
397 | char *pos = buf;
|
---|
398 |
|
---|
399 | pos += sprintf(pos, "%s %d %s\r\n", PROTOCOL, status, title);
|
---|
400 | pos += sprintf(pos, "Server: %s\r\n", SERVER);
|
---|
401 |
|
---|
402 | now = time(NULL);
|
---|
403 | strftime(timebuf, sizeof(timebuf), RFC1123FMT, gmtime(&now));
|
---|
404 | pos += sprintf(pos, "Date: %s\r\n", timebuf);
|
---|
405 |
|
---|
406 | if (extra)
|
---|
407 | pos += sprintf(pos, "%s\r\n", extra);
|
---|
408 |
|
---|
409 | if (mime)
|
---|
410 | pos += sprintf(pos, "Content-Type: %s\r\n", mime);
|
---|
411 |
|
---|
412 | if(!cache){
|
---|
413 | pos += sprintf(pos, "Cache-Control: no-store, no-cache, must-revalidate\r\n");
|
---|
414 | pos += sprintf(pos, "Expires: Sat, 26 Jul 1997 05:00:00 GMT\r\n");
|
---|
415 | } else {
|
---|
416 | pos += sprintf(pos, "Cache-Control: public, max-age=7200\r\n");
|
---|
417 | }
|
---|
418 | pos += sprintf(pos, "Last-Modified: %s\r\n", timebuf);
|
---|
419 | pos += sprintf(pos, "Connection: close\r\n");
|
---|
420 | pos += sprintf(pos, "\r\n");
|
---|
421 | webif_write(buf, f);
|
---|
422 | }
|
---|
423 |
|
---|
424 | /*
|
---|
425 | * function for sending files.
|
---|
426 | */
|
---|
427 | void send_file(FILE *f, char *filename){
|
---|
428 | int fileno = 0;
|
---|
429 |
|
---|
430 | if (!strcmp(filename, "CSS")){
|
---|
431 | filename = cfg->http_css;
|
---|
432 | fileno = 1;
|
---|
433 | } else if (!strcmp(filename, "JS")){
|
---|
434 | filename = cfg->http_jscript;
|
---|
435 | fileno = 2;
|
---|
436 | }
|
---|
437 |
|
---|
438 | if(strlen(filename) > 0 && file_exists(filename) == 1){
|
---|
439 | FILE *fp;
|
---|
440 | char buffer[1024];
|
---|
441 | int read;
|
---|
442 |
|
---|
443 | if((fp = fopen(filename, "r"))==NULL) return;
|
---|
444 | while((read = fread(buffer,sizeof(char), 1023, fp)) > 0) {
|
---|
445 | buffer[read] = '\0';
|
---|
446 | webif_write(buffer, f);
|
---|
447 | }
|
---|
448 |
|
---|
449 | fclose (fp);
|
---|
450 | } else {
|
---|
451 | if (fileno == 1)
|
---|
452 | webif_write(CSS, f);
|
---|
453 | else if (fileno == 2)
|
---|
454 | webif_write(JSCRIPT, f);
|
---|
455 | }
|
---|
456 | }
|
---|
457 |
|
---|
458 | void send_error(FILE *f, int status, char *title, char *extra, char *text){
|
---|
459 | char buf[(2* strlen(title)) + strlen(text) + 128];
|
---|
460 | char *pos = buf;
|
---|
461 | send_headers(f, status, title, extra, "text/html", 0);
|
---|
462 | pos += sprintf(pos, "<HTML><HEAD><TITLE>%d %s</TITLE></HEAD>\r\n", status, title);
|
---|
463 | pos += sprintf(pos, "<BODY><H4>%d %s</H4>\r\n", status, title);
|
---|
464 | pos += sprintf(pos, "%s\r\n", text);
|
---|
465 | pos += sprintf(pos, "</BODY></HTML>\r\n");
|
---|
466 | webif_write(buf, f);
|
---|
467 | }
|
---|
468 |
|
---|
469 | void send_error500(FILE *f){
|
---|
470 | send_error(f, 500, "Internal Server Error", NULL, "The server encountered an internal error that prevented it from fulfilling this request.");
|
---|
471 | }
|
---|
472 |
|
---|
473 | char *getParam(struct uriparams *params, char *name){
|
---|
474 | int i;
|
---|
475 | for(i=(*params).paramcount-1; i>=0; --i){
|
---|
476 | if(strcmp((*params).params[i], name) == 0) return (*params).values[i];
|
---|
477 | }
|
---|
478 | return "";
|
---|
479 | }
|
---|
480 |
|
---|
481 | /* Helper function for urldecode.*/
|
---|
482 | int x2i(int i){
|
---|
483 | i=toupper(i);
|
---|
484 | i = i - '0';
|
---|
485 | if(i > 9) i = i - 'A' + '9' + 1;
|
---|
486 | return i;
|
---|
487 | }
|
---|
488 |
|
---|
489 | /* Decodes values in a http url. Note: The original value is modified! */
|
---|
490 | void urldecode(char *s){
|
---|
491 | int c, c1, n;
|
---|
492 | char *s0,*t;
|
---|
493 | t = s0 = s;
|
---|
494 | n = strlen(s);
|
---|
495 | while(n >0){
|
---|
496 | c = *s++;
|
---|
497 | if(c == '+') c = ' ';
|
---|
498 | else if(c == '%' && n > 2){
|
---|
499 | c = *s++;
|
---|
500 | c1 = c;
|
---|
501 | c = *s++;
|
---|
502 | c = 16*x2i(c1) + x2i(c);
|
---|
503 | n -= 2;
|
---|
504 | }
|
---|
505 | *t++ = c;
|
---|
506 | n--;
|
---|
507 | }
|
---|
508 | *t = 0;
|
---|
509 | }
|
---|
510 |
|
---|
511 | /* Encode values in a http url. Do not call free() or realloc on the returned reference or you will get memory corruption! */
|
---|
512 | char *urlencode(struct templatevars *vars, char *str){
|
---|
513 | char buf[strlen(str) * 3 + 1];
|
---|
514 | char *pstr = str, *pbuf = buf;
|
---|
515 | while (*pstr) {
|
---|
516 | if (isalnum(*pstr) || *pstr == '-' || *pstr == '_' || *pstr == '.' || *pstr == '~') *pbuf++ = *pstr;
|
---|
517 | else if (*pstr == ' ') *pbuf++ = '+';
|
---|
518 | else {
|
---|
519 | *pbuf++ = '%';
|
---|
520 | *pbuf++ = to_hex(*pstr >> 4);
|
---|
521 | *pbuf++ = to_hex(*pstr & 15);
|
---|
522 | }
|
---|
523 | ++pstr;
|
---|
524 | }
|
---|
525 | *pbuf = '\0';
|
---|
526 | /* Allocate the needed memory size and store it in the templatevars */
|
---|
527 | if(!cs_malloc(&pbuf, strlen(buf) + 1, -1)) return "";
|
---|
528 | memcpy(pbuf, buf, strlen(buf) + 1);
|
---|
529 | return tpl_addTmp(vars, pbuf);
|
---|
530 | }
|
---|
531 |
|
---|
532 | /* XML-Escapes a char array. The returned reference will be automatically cleaned through the templatevars-mechanism tpl_clear().
|
---|
533 | Do not call free() or realloc on the returned reference or you will get memory corruption! */
|
---|
534 | char *xml_encode(struct templatevars *vars, char *chartoencode) {
|
---|
535 | int i, pos = 0, len = strlen(chartoencode);
|
---|
536 | char *result;
|
---|
537 | /* In worst case, every character could get converted to 6 chars (we only support ASCII, for Unicode it would be 7)*/
|
---|
538 | char encoded[len * 6 + 1], buffer[7];
|
---|
539 | for (i = 0; i < len; ++i){
|
---|
540 | switch(chartoencode[i]) {
|
---|
541 | case '&': memcpy(encoded + pos, "&", 5); pos+=5; break;
|
---|
542 | case '<': memcpy(encoded + pos, "<", 4); pos+=4; break;
|
---|
543 | case '>': memcpy(encoded + pos, ">", 4); pos+=4; break;
|
---|
544 | case '"': memcpy(encoded + pos, """, 6); pos+=6; break;
|
---|
545 | case '\'': memcpy(encoded + pos, "'", 6); pos+=6; break;
|
---|
546 |
|
---|
547 | default:
|
---|
548 | if ( (unsigned int)chartoencode[i] < 32 || (unsigned int)chartoencode[i] > 127 ) {
|
---|
549 | snprintf(buffer, 7, "&#%d;", chartoencode[i] + 256);
|
---|
550 | memcpy(encoded + pos, buffer, strlen(buffer));
|
---|
551 | pos+=strlen(buffer);
|
---|
552 |
|
---|
553 | } else {
|
---|
554 | encoded[pos] = chartoencode[i];
|
---|
555 | ++pos;
|
---|
556 | }
|
---|
557 |
|
---|
558 | }
|
---|
559 | }
|
---|
560 | /* Allocate the needed memory size and store it in the templatevars */
|
---|
561 | if(!cs_malloc(&result, pos + 1, -1)) return "";
|
---|
562 | memcpy(result, encoded, pos);
|
---|
563 | result[pos] = '\0';
|
---|
564 | return tpl_addTmp(vars, result);
|
---|
565 | }
|
---|
566 |
|
---|
567 | int b64decode(unsigned char *result){
|
---|
568 | char inalphabet[256], decoder[256];
|
---|
569 | unsigned char alphabet[64] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
---|
570 | int i, len = strlen((char *)result), j = 0, bits = 0, char_count = 0;
|
---|
571 |
|
---|
572 | for (i = sizeof(alphabet) - 1; i >= 0; --i) {
|
---|
573 | inalphabet[alphabet[i]] = 1;
|
---|
574 | decoder[alphabet[i]] = i;
|
---|
575 | }
|
---|
576 | for(i = 0; i < len; ++i){
|
---|
577 | if (result[i] == '=') break;
|
---|
578 | if (!inalphabet[result[i]]) continue;
|
---|
579 | bits += decoder[result[i]];
|
---|
580 | ++char_count;
|
---|
581 | if (char_count == 4) {
|
---|
582 | result[j++] = bits >> 16;
|
---|
583 | result[j++] = (bits >> 8) & 0xff;
|
---|
584 | result[j++] = bits & 0xff;
|
---|
585 | bits = 0;
|
---|
586 | char_count = 0;
|
---|
587 | } else {
|
---|
588 | bits <<= 6;
|
---|
589 | }
|
---|
590 | }
|
---|
591 | if (i == len) {
|
---|
592 | if (char_count) {
|
---|
593 | result[j] = '\0';
|
---|
594 | return 0;
|
---|
595 | }
|
---|
596 | } else {
|
---|
597 | switch (char_count) {
|
---|
598 | case 1:
|
---|
599 | result[j] = '\0';
|
---|
600 | return 0;
|
---|
601 | case 2:
|
---|
602 | result[j++] = bits >> 10;
|
---|
603 | result[j] = '\0';
|
---|
604 | break;
|
---|
605 | case 3:
|
---|
606 | result[j++] = bits >> 16;
|
---|
607 | result[j++] = (bits >> 8) & 0xff;
|
---|
608 | result[j] = '\0';
|
---|
609 | break;
|
---|
610 | }
|
---|
611 | }
|
---|
612 | return j;
|
---|
613 | }
|
---|
614 |
|
---|
615 | /* Format a seconds integer to hh:mm:ss or dd hh:mm:ss depending hrs >24 */
|
---|
616 | char *sec2timeformat(struct templatevars *vars, int seconds) {
|
---|
617 | char *value;
|
---|
618 | if(!cs_malloc(&value, 12 * sizeof(char), -1))
|
---|
619 | return "";
|
---|
620 |
|
---|
621 | int secs = 0, fullmins = 0, mins = 0, fullhours = 0, hours = 0, days = 0;
|
---|
622 |
|
---|
623 | if(seconds > 0) {
|
---|
624 | secs = seconds % 60;
|
---|
625 | if (seconds > 60) {
|
---|
626 | fullmins = seconds / 60;
|
---|
627 | mins = fullmins % 60;
|
---|
628 | if(fullmins > 60) {
|
---|
629 | fullhours = fullmins / 60;
|
---|
630 | hours = fullhours % 24;
|
---|
631 | days = fullhours / 24;
|
---|
632 | }
|
---|
633 | }
|
---|
634 | }
|
---|
635 | if(!days) sprintf(value, "%02d:%02d:%02d", hours, mins, secs);
|
---|
636 | else sprintf(value, "%02dd %02d:%02d:%02d", days, hours, mins, secs);
|
---|
637 |
|
---|
638 | return tpl_addTmp(vars, value);
|
---|
639 | }
|
---|
640 |
|
---|
641 | #endif
|
---|