[3181] | 1 | //FIXME Not checked on threadsafety yet; after checking please remove this line
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[3168] | 2 | #include "globals.h"
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[1693] | 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 | int i;
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| 10 | char *tmp,*result = NULL;
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| 11 | for(i = (*vars).varscnt-1; i >= 0; --i){
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| 12 | if(strcmp((*vars).names[i], name) == 0){
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| 13 | result = (*vars).values[i];
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| 14 | break;
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| 15 | }
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| 16 | }
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| 17 | if(result == NULL){
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| 18 | if((*vars).varsalloc <= (*vars).varscnt){
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| 19 | (*vars).varsalloc = (*vars).varscnt * 2;
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| 20 | (*vars).names = (char**) realloc ((*vars).names, (*vars).varsalloc * sizeof(char**));
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| 21 | (*vars).values = (char**) realloc ((*vars).values, (*vars).varsalloc * sizeof(char**));
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| 22 | }
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| 23 | tmp = (char *) malloc((strlen(name) + 1) * sizeof(char));
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| 24 | strcpy(tmp, name);
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| 25 | (*vars).names[(*vars).varscnt] = tmp;
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| 26 | tmp = (char *) malloc((strlen(value) + 1) * sizeof(char));
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| 27 | strcpy(tmp, value);
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| 28 | (*vars).values[(*vars).varscnt] = tmp;
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| 29 | (*vars).varscnt = (*vars).varscnt + 1;
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| 30 | } else {
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| 31 | int newlen = strlen(value);
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| 32 | if(append == 1){
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| 33 | int oldlen = strlen((*vars).values[i]);
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| 34 | tmp = (char*) malloc ((oldlen + newlen + 1) * sizeof(char));
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| 35 | memcpy(tmp, (*vars).values[i], oldlen);
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| 36 | strcpy(tmp + oldlen, value);
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| 37 | } else {
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| 38 | tmp = (char*) malloc ((newlen + 1) * sizeof(char));
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| 39 | strcpy(tmp, value);
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| 40 | }
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| 41 | free((*vars).values[i]);
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| 42 | (*vars).values[i] = tmp;
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| 43 | }
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| 44 | return tmp;
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| 45 | }
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| 46 |
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| 47 | /* Allows to add a char array which has been allocated by malloc. It will automatically get
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| 48 | freed when calling tpl_clear(). Please do NOT free the memory yourself or realloc
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| 49 | it after having added the array here! */
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| 50 | char *tpl_addTmp(struct templatevars *vars, char *value){
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| 51 | if((*vars).tmpalloc <= (*vars).tmpcnt){
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| 52 | (*vars).tmpalloc = (*vars).tmpcnt * 2;
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| 53 | (*vars).tmp = (char**) realloc ((*vars).tmp, (*vars).tmpalloc * sizeof(char**));
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| 54 | }
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| 55 | (*vars).tmp[(*vars).tmpcnt] = value;
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| 56 | (*vars).tmpcnt = (*vars).tmpcnt + 1;
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| 57 | return value;
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| 58 | }
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| 59 |
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| 60 | /* Allows to do a dynamic printf without knowing and defining the needed memory size. If you specify
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| 61 | varname, the printf-result will be added/appended to the varlist. You will always get a reference
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| 62 | back which you may freely use (but you should not call free/realloc on this!)*/
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| 63 | char *tpl_printf(struct templatevars *vars, int append, char *varname, char *fmtstring, ...){
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| 64 | unsigned int allocated = strlen(fmtstring) - (strlen(fmtstring)%16) + 16;
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| 65 | char *result, *tmp = (char *) malloc(allocated * sizeof(char));
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| 66 | va_list argptr;
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| 67 |
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| 68 | va_start(argptr,fmtstring);
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| 69 | vsnprintf(tmp ,allocated, fmtstring, argptr);
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| 70 | va_end(argptr);
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| 71 | while (strlen(tmp) + 1 == allocated){
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| 72 | allocated += 16;
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| 73 | tmp = (char *) realloc(tmp, allocated * sizeof(char));
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| 74 | va_start(argptr,fmtstring);
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| 75 | vsnprintf(tmp, allocated, fmtstring, argptr);
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| 76 | va_end(argptr);
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| 77 | }
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| 78 | result = (char *) malloc(strlen(tmp) + 1 * sizeof(char));
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| 79 | strcpy(result, tmp);
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| 80 | free(tmp);
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| 81 | if(varname == NULL) tpl_addTmp(vars, result);
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| 82 | else {
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| 83 | char *tmp = tpl_addVar(vars, append, varname, result);
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| 84 | free(result);
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| 85 | result = tmp;
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| 86 | }
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| 87 | return result;
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| 88 | }
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| 89 |
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| 90 | /* Returns the value for a name or an empty string if nothing was found. */
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| 91 | char *tpl_getVar(struct templatevars *vars, char *name){
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| 92 | int i;
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| 93 | char *result = NULL;
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| 94 | for(i = (*vars).varscnt-1; i >= 0; --i){
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| 95 | if(strcmp((*vars).names[i], name) == 0){
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| 96 | result = (*vars).values[i];
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| 97 | break;
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| 98 | }
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| 99 | }
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| 100 | if(result == NULL) return "";
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| 101 | else return result;
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| 102 | }
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| 103 |
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| 104 | /* Initializes all variables vor a templatevar-structure and returns a pointer to it. Make
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| 105 | sure to call tpl_clear() when you are finished or you'll run into a memory leak! */
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| 106 | struct templatevars *tpl_create(){
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| 107 | struct templatevars *vars = (struct templatevars *) malloc(sizeof(struct templatevars));
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| 108 | (*vars).varsalloc = 16;
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| 109 | (*vars).varscnt = 0;
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| 110 | (*vars).tmpalloc = 16;
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| 111 | (*vars).tmpcnt = 0;
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| 112 | (*vars).names = (char**) malloc ((*vars).varsalloc * sizeof(char**));
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| 113 | (*vars).values = (char**) malloc ((*vars).varsalloc * sizeof(char**));
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| 114 | (*vars).tmp = (char**) malloc ((*vars).tmpalloc * sizeof(char**));
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| 115 | return vars;
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| 116 | }
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| 117 |
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| 118 | /* Clears all allocated memory for the specified templatevar-structure. */
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| 119 | void tpl_clear(struct templatevars *vars){
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| 120 | int i;
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| 121 | for(i = (*vars).varscnt-1; i >= 0; --i){
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| 122 | free((*vars).names[i]);
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| 123 | free((*vars).values[i]);
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| 124 | }
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| 125 | free((*vars).names);
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| 126 | free((*vars).values);
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| 127 | for(i = (*vars).tmpcnt-1; i >= 0; --i){
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| 128 | free((*vars).tmp[i]);
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| 129 | }
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| 130 | free((*vars).tmp);
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| 131 | free(vars);
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| 132 | }
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| 133 |
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| 134 | /* Creates a path to a template file. You need to set the resultsize to the correct size of result. */
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| 135 | char *tpl_getTplPath(const char *name, const char *path, char *result, unsigned int resultsize){
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| 136 | char *pch;
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| 137 | if((strlen(path) + strlen(name) + 6) <= resultsize){
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| 138 | strcpy(result, path);
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| 139 | strcat(result, name);
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| 140 | strcat(result, ".tpl");
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| 141 | result[resultsize - 1] = '\0';
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| 142 | for(pch = result + strlen(path); pch[0] != '\0'; ++pch){
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| 143 | if(pch[0] == '/' || pch[0] == '\\') pch[0] = ' ';
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| 144 | }
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| 145 | } else result[0] = '\0';
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| 146 | return result;
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| 147 | }
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| 148 |
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| 149 | /* Returns an unparsed template either from disk or from internal templates.
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| 150 | Note: You must free() the result after using it!*/
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| 151 | char *tpl_getUnparsedTpl(const char* name){
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| 152 | int i;
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| 153 | int tplcnt = sizeof(tpl)/sizeof(char *);
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| 154 | int tplmapcnt = sizeof(tplmap)/sizeof(char *);
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| 155 | char *result;
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| 156 |
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| 157 | for(i = 0; i < tplcnt; ++i){
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| 158 | if(strcmp(name, tpl[i]) == 0) break;
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| 159 | }
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| 160 |
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| 161 | if(strlen(cfg->http_tpl) > 0){
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| 162 | char path[200];
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| 163 | if(strlen(tpl_getTplPath(name, cfg->http_tpl, path, 200)) > 0 && file_exists(path)){
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| 164 | FILE *fp;
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| 165 | char buffer[1024];
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| 166 | int read, allocated = 1025, size = 0;
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| 167 | result = (char *) malloc(allocated * sizeof(char));
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| 168 | if((fp = fopen(path,"r"))!=NULL){
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| 169 | while((read = fread(&buffer,sizeof(char),1024,fp)) > 0){
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| 170 | if(allocated < size + read + 1) {
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| 171 | allocated += size + 1024;
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| 172 | result = (char *) realloc(result, allocated * sizeof(char));
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| 173 | }
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| 174 | memcpy(result + size, buffer, read);
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| 175 | size += read;
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| 176 | }
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| 177 | result[size] = '\0';
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| 178 | fclose (fp);
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| 179 | return result;
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| 180 | }
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| 181 | }
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| 182 | }
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| 183 | if(i >= 0 && i < tplmapcnt){
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| 184 | int len = (strlen(tplmap[i])) + 1;
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| 185 | result = (char *) malloc(len * sizeof(char));
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| 186 | memcpy(result, tplmap[i], len);
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| 187 | } else {
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| 188 | result = (char *) malloc(1 * sizeof(char));
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| 189 | result[0] = '\0';
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| 190 | }
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| 191 | return result;
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| 192 | }
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| 193 |
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| 194 | /* Returns the specified template with all variables/other templates replaced or an
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| 195 | empty string if the template doesn't exist*/
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| 196 | char *tpl_getTpl(struct templatevars *vars, const char* name){
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| 197 | char *tplorg = tpl_getUnparsedTpl(name);
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| 198 | char *tplend = tplorg + strlen(tplorg);
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| 199 | char *pch, *pch2, *tpl=tplorg;
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| 200 | char varname[33];
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| 201 |
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| 202 | int tmp,respos = 0;
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| 203 | int allocated = 2 * strlen(tpl) + 1;
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| 204 | char *result = (char *) malloc(allocated * sizeof(char));
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| 205 |
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| 206 | while(tpl < tplend){
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| 207 | if(tpl[0] == '#' && tpl[1] == '#' && tpl[2] != '#'){
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| 208 | pch2 = tpl;
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| 209 | pch = tpl + 2;
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| 210 | while(pch[0] != '\0' && (pch[0] != '#' || pch[1] != '#')) ++pch;
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| 211 | if(pch - pch2 < 32 && pch[0] == '#' && pch[1] == '#'){
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| 212 | memcpy(varname, pch2 + 2, pch - pch2 - 2);
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| 213 | varname[pch - pch2 - 2] = '\0';
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| 214 | if(strncmp(varname, "TPL", 3) == 0){
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| 215 | pch2 = tpl_getTpl(vars, varname + 3);
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| 216 | } else {
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| 217 | pch2 = tpl_getVar(vars, varname);
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| 218 | }
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| 219 | tmp = strlen(pch2);
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| 220 | if(tmp + respos + 2 >= allocated){
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| 221 | allocated = tmp + respos + 256;
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| 222 | result = (char *) realloc(result, allocated * sizeof(char));
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| 223 | }
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| 224 | memcpy(result + respos, pch2, tmp);
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| 225 | respos += tmp;
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| 226 | tpl = pch + 2;
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| 227 | }
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| 228 | } else {
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| 229 | if(respos + 2 >= allocated){
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| 230 | allocated = respos + 256;
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| 231 | result = (char *) realloc(result, allocated * sizeof(char));
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| 232 | }
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| 233 | result[respos] = tpl[0];
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| 234 | ++respos;
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| 235 | ++tpl;
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| 236 | }
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| 237 | }
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| 238 | free(tplorg);
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| 239 | result[respos] = '\0';
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| 240 | tpl_addTmp(vars, result);
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| 241 | return result;
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| 242 | }
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| 243 |
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| 244 | /* Saves all templates to the specified paths. Existing files will be overwritten! */
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| 245 | int tpl_saveIncludedTpls(const char *path){
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| 246 | int tplcnt = sizeof(tpl)/sizeof(char *);
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| 247 | int tplmapcnt = sizeof(tplmap)/sizeof(char *);
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| 248 | int i, cnt = 0;
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| 249 | char tmp[200];
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| 250 | FILE *fp;
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| 251 | for(i = 0; i < tplcnt && i < tplmapcnt; ++i){
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| 252 | if(strlen(tpl_getTplPath(tpl[i], path, tmp, 200)) > 0 && (fp = fopen(tmp,"w")) != NULL){
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| 253 | fwrite(tplmap[i], sizeof(char), strlen(tplmap[i]), fp);
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| 254 | fclose (fp);
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| 255 | ++cnt;
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| 256 | }
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| 257 | }
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| 258 | return cnt;
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| 259 | }
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| 260 |
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| 261 | /* Parses a value in an authentication string by removing all quotes/whitespace. Note that the original array is modified*/
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| 262 | char *parse_auth_value(char *value){
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| 263 | char *pch = value;
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| 264 | char *pch2;
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| 265 | value = strstr(value, "=");
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| 266 | if(value != NULL){
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| 267 | do{
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| 268 | ++value;
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| 269 | } while (value[0] == ' ' || value[0] == '"');
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| 270 | pch = value;
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| 271 | 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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| 272 | }
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| 273 | return pch;
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| 274 | }
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| 275 |
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| 276 | /* Calculates the currently valid nonce value and copies it to result*/
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| 277 | void calculate_nonce(char *result, int resultlen){
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| 278 | char *expectednonce, *noncetmp;
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| 279 | noncetmp = (char*) malloc (128*sizeof(char));
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| 280 | sprintf(noncetmp, "%d", (int)time(NULL)/AUTHNONCEVALIDSECS);
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| 281 | strcat(noncetmp, ":");
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| 282 | strcat(noncetmp, noncekey);
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| 283 | fflush(stdout);
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| 284 | expectednonce =char_to_hex(MD5((unsigned char*)noncetmp, strlen(noncetmp), NULL), MD5_DIGEST_LENGTH, hex2ascii);
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| 285 | cs_strncpy(result, expectednonce, resultlen);
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| 286 | free(noncetmp);
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| 287 | free(expectednonce);
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| 288 | }
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| 289 |
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| 290 | /* 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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| 291 | int check_auth(char *authstring, char *method, char *path, char *expectednonce){
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| 292 | int authok = 0, uriok = 0;
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| 293 | char *authnonce;
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| 294 | char *authnc;
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| 295 | char *authcnonce;
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| 296 | char *uri;
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| 297 | char *authresponse;
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| 298 | char *A1tmp, *A2tmp, *A3tmp;
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| 299 | char *A1, *A2, *A3;
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| 300 | char *pch, *pch2;
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| 301 |
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| 302 | authnonce = "";
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| 303 | authnc = "";
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| 304 | authcnonce = "";
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| 305 | authresponse = "";
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| 306 | uri = "";
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| 307 | pch = authstring + 22;
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| 308 | pch = strtok (pch,",");
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| 309 | while (pch != NULL){
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| 310 | pch2 = pch;
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| 311 | while(pch2[0] == ' ' && pch2[0] != '\0') ++pch2;
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| 312 | if(strncmp(pch2, "nonce", 5) == 0){
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| 313 | authnonce=parse_auth_value(pch2);
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| 314 | } else if (strncmp(pch2, "nc", 2) == 0){
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| 315 | authnc=parse_auth_value(pch2);
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| 316 | } else if (strncmp(pch2, "cnonce", 6) == 0){
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| 317 | authcnonce=parse_auth_value(pch2);
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| 318 | } else if (strncmp(pch2, "response", 8) == 0){
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| 319 | authresponse=parse_auth_value(pch2);
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| 320 | } else if (strncmp(pch2, "uri", 3) == 0){
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| 321 | uri=parse_auth_value(pch2);
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| 322 | }
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| 323 | pch = strtok (NULL, ",");
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| 324 | }
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| 325 | if(strncmp(uri, path, strlen(path)) == 0) uriok = 1;
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| 326 | else {
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| 327 | pch2 = uri;
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| 328 | for(pch = uri; pch[0] != '\0'; ++pch) {
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| 329 | if(pch[0] == '/') pch2 = pch;
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| 330 | }
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| 331 | if(strncmp(pch2, path, strlen(path)) == 0) uriok = 1;
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| 332 | }
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| 333 | if(uriok == 1){
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| 334 | A1tmp = (char*) malloc ((3 + strlen(cfg->http_user) + strlen(AUTHREALM) + strlen(cfg->http_pwd))*sizeof(char));
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| 335 | strcpy(A1tmp, cfg->http_user);
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| 336 | strcat(A1tmp, ":");
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| 337 | strcat(A1tmp, AUTHREALM);
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| 338 | strcat(A1tmp, ":");
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| 339 | strcat(A1tmp, cfg->http_pwd);
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| 340 | A2tmp = (char*) malloc ((2 + strlen(method) + strlen(uri))*sizeof(char));
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| 341 | strcpy(A2tmp, method);
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| 342 | strcat(A2tmp, ":");
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| 343 | strcat(A2tmp, uri);
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| 344 | A1=char_to_hex(MD5((unsigned char*)A1tmp, strlen(A1tmp), NULL), MD5_DIGEST_LENGTH, hex2ascii);
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| 345 | A2=char_to_hex(MD5((unsigned char*)A2tmp, strlen(A2tmp), NULL), MD5_DIGEST_LENGTH, hex2ascii);
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| 346 | A3tmp = (char*) malloc ((10 + strlen(A1) + strlen(A2) + strlen(authnonce) + strlen(authnc) + strlen(authcnonce))*sizeof(char));
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| 347 | strcpy(A3tmp, A1);
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| 348 | strcat(A3tmp, ":");
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| 349 | strcat(A3tmp, authnonce);
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| 350 | strcat(A3tmp, ":");
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| 351 | strcat(A3tmp, authnc);
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| 352 | strcat(A3tmp, ":");
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| 353 | strcat(A3tmp, authcnonce);
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| 354 | strcat(A3tmp, ":auth:");
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| 355 | strcat(A3tmp, A2);
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| 356 | A3=char_to_hex(MD5((unsigned char*)A3tmp, strlen(A3tmp), NULL), MD5_DIGEST_LENGTH, hex2ascii);
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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 | free(A1tmp);
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| 362 | free(A2tmp);
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| 363 | free(A3tmp);
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| 364 | free(A1);
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| 365 | free(A2);
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| 366 | free(A3);
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| 367 | }
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| 368 | return authok;
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| 369 | }
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| 370 |
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| 371 | void send_headers(FILE *f, int status, char *title, char *extra, char *mime){
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| 372 |
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| 373 | time_t now;
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| 374 | char timebuf[128];
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| 375 |
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| 376 | fprintf(f, "%s %d %s\r\n", PROTOCOL, status, title);
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| 377 | fprintf(f, "Server: %s\r\n", SERVER);
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| 378 |
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| 379 | now = time(NULL);
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| 380 | strftime(timebuf, sizeof(timebuf), RFC1123FMT, gmtime(&now));
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| 381 | fprintf(f, "Date: %s\r\n", timebuf);
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| 382 |
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| 383 | if (extra)
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| 384 | fprintf(f, "%s\r\n", extra);
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| 385 |
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| 386 | if (mime)
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| 387 | fprintf(f, "Content-Type: %s\r\n", mime);
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| 388 |
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| 389 | strftime(timebuf, sizeof(timebuf), RFC1123FMT, gmtime(&now));
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| 390 | fprintf(f, "Cache-Control: no-store, no-cache, must-revalidate\r\n");
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| 391 | fprintf(f, "Expires: Sat, 26 Jul 1997 05:00:00 GMT\r\n");
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| 392 | fprintf(f, "Last-Modified: %s\r\n", timebuf);
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| 393 | fprintf(f, "Connection: close\r\n");
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| 394 | fprintf(f, "\r\n");
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| 395 | }
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| 396 |
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| 397 | void send_css(FILE *f){
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| 398 | if(strlen(cfg->http_css) > 0 && file_exists(cfg->http_css) == 1){
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| 399 | FILE *fp;
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| 400 | char buffer[1024];
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| 401 | int read;
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| 402 |
|
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| 403 | if((fp = fopen(cfg->http_css,"r"))==NULL) return;
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| 404 | while((read = fread(&buffer,sizeof(char),1024,fp)) > 0) fwrite(&buffer, sizeof(char), read, f);
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| 405 | fclose (fp);
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| 406 | } else {
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| 407 | fputs(CSS, f);
|
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| 408 | }
|
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| 409 | }
|
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| 410 |
|
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[3790] | 411 | void send_js(FILE *f){
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| 412 | if(strlen(cfg->http_jscript) > 0 && file_exists(cfg->http_jscript) == 1){
|
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| 413 | FILE *fp;
|
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| 414 | char buffer[1024];
|
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| 415 | int read;
|
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| 416 |
|
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| 417 | if((fp = fopen(cfg->http_jscript,"r"))==NULL) return;
|
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| 418 | while((read = fread(&buffer,sizeof(char),1024,fp)) > 0) fwrite(&buffer, sizeof(char), read, f);
|
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| 419 | fclose (fp);
|
---|
| 420 | } else {
|
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| 421 | fputs(JSCRIPT, f);
|
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| 422 | }
|
---|
| 423 | }
|
---|
| 424 |
|
---|
[1693] | 425 | void send_error(FILE *f, int status, char *title, char *extra, char *text){
|
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| 426 | send_headers(f, status, title, extra, "text/html");
|
---|
| 427 | fprintf(f, "<HTML><HEAD><TITLE>%d %s</TITLE></HEAD>\r\n", status, title);
|
---|
| 428 | fprintf(f, "<BODY><H4>%d %s</H4>\r\n", status, title);
|
---|
| 429 | fprintf(f, "%s\r\n", text);
|
---|
| 430 | fprintf(f, "</BODY></HTML>\r\n");
|
---|
| 431 | }
|
---|
| 432 |
|
---|
| 433 | char *getParam(struct uriparams *params, char *name){
|
---|
| 434 | int i;
|
---|
| 435 | for(i=(*params).paramcount-1; i>=0; --i){
|
---|
| 436 | if(strcmp((*params).params[i], name) == 0) return (*params).values[i];
|
---|
| 437 | }
|
---|
| 438 | return "";
|
---|
| 439 | }
|
---|
[3482] | 440 |
|
---|
| 441 | char *getParamDef(struct uriparams *params, char *name, char* def){
|
---|
| 442 | int i;
|
---|
| 443 | for(i=(*params).paramcount-1; i>=0; --i){
|
---|
| 444 | if(strcmp((*params).params[i], name) == 0) return (*params).values[i];
|
---|
| 445 | }
|
---|
| 446 | return def;
|
---|
| 447 | }
|
---|
[3830] | 448 |
|
---|
[1693] | 449 | #endif
|
---|