[7d4fbcd] | 1 | #include <string.h> |
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| 2 | #include "owl.h" |
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| 3 | |
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[23fddad] | 4 | owl_filter *owl_filter_new_fromstring(const char *name, const char *string) |
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[e187445] | 5 | { |
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[23fddad] | 6 | owl_filter *f; |
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[7d4fbcd] | 7 | char **argv; |
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[23fddad] | 8 | int argc; |
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[7d4fbcd] | 9 | |
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[23fddad] | 10 | argv = owl_parseline(string, &argc); |
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| 11 | f = owl_filter_new(name, argc, strs(argv)); |
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[1716fed] | 12 | owl_parsefree(argv, argc); |
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[23fddad] | 13 | |
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| 14 | return f; |
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[7d4fbcd] | 15 | } |
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| 16 | |
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[23fddad] | 17 | owl_filter *owl_filter_new(const char *name, int argc, const char *const *argv) |
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[e187445] | 18 | { |
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[23fddad] | 19 | owl_filter *f; |
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| 20 | |
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| 21 | f = owl_malloc(sizeof(owl_filter)); |
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| 22 | |
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[7d4fbcd] | 23 | f->name=owl_strdup(name); |
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[8fa9562] | 24 | f->fgcolor=OWL_COLOR_DEFAULT; |
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| 25 | f->bgcolor=OWL_COLOR_DEFAULT; |
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[59cf91c] | 26 | f->cachedmsgid=-1; |
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[cb769bb] | 27 | |
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[7d4fbcd] | 28 | /* first take arguments that have to come first */ |
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| 29 | /* set the color */ |
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[8fa9562] | 30 | while ( argc>=2 && ( !strcmp(argv[0], "-c") || |
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| 31 | !strcmp(argv[0], "-b") ) ) { |
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[601733d] | 32 | if (owl_util_string_to_color(argv[1])==OWL_COLOR_INVALID) { |
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[12c35df] | 33 | owl_function_error("The color '%s' is not available, using default.", argv[1]); |
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| 34 | } else { |
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[8fa9562] | 35 | switch (argv[0][1]) { |
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| 36 | case 'c': |
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| 37 | f->fgcolor=owl_util_string_to_color(argv[1]); |
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| 38 | break; |
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| 39 | case 'b': |
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| 40 | f->bgcolor=owl_util_string_to_color(argv[1]); |
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| 41 | break; |
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| 42 | } |
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[12c35df] | 43 | } |
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[7d4fbcd] | 44 | argc-=2; |
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| 45 | argv+=2; |
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| 46 | } |
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| 47 | |
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[23fddad] | 48 | if (!(f->root = owl_filter_parse_expression(argc, argv, NULL))) { |
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| 49 | owl_filter_delete(f); |
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| 50 | return NULL; |
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| 51 | } |
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[7d4fbcd] | 52 | |
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[cb769bb] | 53 | /* Now check for recursion. */ |
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[40458b9] | 54 | if (owl_filter_is_toodeep(f)) { |
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[9711a6e] | 55 | owl_function_error("Filter loop!"); |
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[23fddad] | 56 | owl_filter_delete(f); |
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| 57 | return NULL; |
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[7d4fbcd] | 58 | } |
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[cb769bb] | 59 | |
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[23fddad] | 60 | return f; |
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[7d4fbcd] | 61 | } |
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| 62 | |
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[cb769bb] | 63 | |
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| 64 | /* A primitive expression is one without any toplevel ``and'' or ``or''s*/ |
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| 65 | |
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[e19eb97] | 66 | static owl_filterelement * owl_filter_parse_primitive_expression(int argc, const char *const *argv, int *next) |
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[cb769bb] | 67 | { |
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[ad15610] | 68 | owl_filterelement *fe, *op; |
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| 69 | int i = 0, skip; |
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[cb769bb] | 70 | |
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[ad15610] | 71 | if(!argc) return NULL; |
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[cb769bb] | 72 | |
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[ad15610] | 73 | fe = owl_malloc(sizeof(owl_filterelement)); |
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[cb769bb] | 74 | owl_filterelement_create(fe); |
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| 75 | |
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| 76 | if(!strcasecmp(argv[i], "(")) { |
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| 77 | i++; |
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| 78 | op = owl_filter_parse_expression(argc-i, argv+i, &skip); |
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| 79 | if(!op) goto err; |
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| 80 | i += skip; |
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[d791cdb] | 81 | if(i >= argc) goto err; |
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[cb769bb] | 82 | if(strcasecmp(argv[i++], ")")) goto err; |
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| 83 | owl_filterelement_create_group(fe, op); |
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| 84 | } else if(!strcasecmp(argv[i], "not")) { |
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| 85 | i++; |
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| 86 | op = owl_filter_parse_primitive_expression(argc-i, argv+i, &skip); |
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| 87 | if(!op) goto err; |
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| 88 | i += skip; |
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| 89 | owl_filterelement_create_not(fe, op); |
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| 90 | } else if(!strcasecmp(argv[i], "true")) { |
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| 91 | i++; |
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| 92 | owl_filterelement_create_true(fe); |
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| 93 | } else if(!strcasecmp(argv[i], "false")) { |
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| 94 | i++; |
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| 95 | owl_filterelement_create_false(fe); |
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| 96 | } else { |
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| 97 | if(argc == 1) goto err; |
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| 98 | if(!strcasecmp(*argv, "filter")) { |
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| 99 | owl_filterelement_create_filter(fe, *(argv+1)); |
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| 100 | } else if(!strcasecmp(*argv, "perl")) { |
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| 101 | owl_filterelement_create_perl(fe, *(argv+1)); |
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| 102 | } else { |
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[e6a4dd5] | 103 | if(owl_filterelement_create_re(fe, *argv, *(argv+1))) { |
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| 104 | goto err; |
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| 105 | } |
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[cb769bb] | 106 | } |
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| 107 | i += 2; |
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| 108 | } |
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| 109 | |
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| 110 | if(next) { |
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| 111 | *next = i; |
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| 112 | } else if(i != argc) { |
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| 113 | goto err; |
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| 114 | } |
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| 115 | return fe; |
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| 116 | err: |
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| 117 | owl_filterelement_free(fe); |
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| 118 | owl_free(fe); |
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| 119 | return NULL; |
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| 120 | } |
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| 121 | |
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[e19eb97] | 122 | owl_filterelement * owl_filter_parse_expression(int argc, const char *const *argv, int *next) |
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[cb769bb] | 123 | { |
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| 124 | int i = 0, skip; |
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[ad15610] | 125 | owl_filterelement * op1 = NULL, * op2 = NULL, *tmp; |
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[cb769bb] | 126 | |
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| 127 | op1 = owl_filter_parse_primitive_expression(argc-i, argv+i, &skip); |
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| 128 | i += skip; |
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| 129 | if(!op1) goto err; |
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| 130 | |
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| 131 | while(i < argc) { |
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| 132 | if(strcasecmp(argv[i], "and") && |
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| 133 | strcasecmp(argv[i], "or")) break; |
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| 134 | op2 = owl_filter_parse_primitive_expression(argc-i-1, argv+i+1, &skip); |
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| 135 | if(!op2) goto err; |
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[ad15610] | 136 | tmp = owl_malloc(sizeof(owl_filterelement)); |
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[cb769bb] | 137 | if(!strcasecmp(argv[i], "and")) { |
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| 138 | owl_filterelement_create_and(tmp, op1, op2); |
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| 139 | } else { |
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| 140 | owl_filterelement_create_or(tmp, op1, op2); |
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| 141 | } |
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| 142 | op1 = tmp; |
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| 143 | op2 = NULL; |
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| 144 | i += skip+1; |
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| 145 | } |
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| 146 | |
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| 147 | if(next) { |
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| 148 | *next = i; |
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| 149 | } else if(i != argc) { |
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| 150 | goto err; |
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| 151 | } |
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| 152 | return op1; |
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| 153 | err: |
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| 154 | if(op1) { |
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| 155 | owl_filterelement_free(op1); |
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| 156 | owl_free(op1); |
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| 157 | } |
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| 158 | return NULL; |
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| 159 | } |
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| 160 | |
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[4542047] | 161 | const char *owl_filter_get_name(const owl_filter *f) |
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[e187445] | 162 | { |
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[7d4fbcd] | 163 | return(f->name); |
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| 164 | } |
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| 165 | |
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[8fa9562] | 166 | void owl_filter_set_fgcolor(owl_filter *f, int color) |
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[e187445] | 167 | { |
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[8fa9562] | 168 | f->fgcolor=color; |
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[7d4fbcd] | 169 | } |
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| 170 | |
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[4542047] | 171 | int owl_filter_get_fgcolor(const owl_filter *f) |
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[e187445] | 172 | { |
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[8fa9562] | 173 | return(f->fgcolor); |
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| 174 | } |
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| 175 | |
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| 176 | void owl_filter_set_bgcolor(owl_filter *f, int color) |
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| 177 | { |
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| 178 | f->bgcolor=color; |
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| 179 | } |
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| 180 | |
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[4542047] | 181 | int owl_filter_get_bgcolor(const owl_filter *f) |
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[8fa9562] | 182 | { |
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| 183 | return(f->bgcolor); |
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[7d4fbcd] | 184 | } |
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| 185 | |
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[e187445] | 186 | void owl_filter_set_cachedmsgid(owl_filter *f, int cachedmsgid) |
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| 187 | { |
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[59cf91c] | 188 | f->cachedmsgid=cachedmsgid; |
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| 189 | } |
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| 190 | |
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[4542047] | 191 | int owl_filter_get_cachedmsgid(const owl_filter *f) |
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[e187445] | 192 | { |
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[59cf91c] | 193 | return(f->cachedmsgid); |
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| 194 | } |
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| 195 | |
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[15b34fd] | 196 | /* return 1 if the message matches the given filter, otherwise |
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| 197 | * return 0. |
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| 198 | */ |
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[4542047] | 199 | int owl_filter_message_match(const owl_filter *f, const owl_message *m) |
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[e187445] | 200 | { |
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[ad15610] | 201 | int ret; |
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[cb769bb] | 202 | if(!f->root) return 0; |
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[ad15610] | 203 | ret = owl_filterelement_match(f->root, m); |
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[cb769bb] | 204 | return ret; |
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[7d4fbcd] | 205 | } |
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| 206 | |
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| 207 | |
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[4542047] | 208 | char* owl_filter_print(const owl_filter *f) |
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[e187445] | 209 | { |
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[cdc6ff1] | 210 | GString *out = g_string_new(""); |
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[446aa2b] | 211 | |
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[8fa9562] | 212 | if (f->fgcolor!=OWL_COLOR_DEFAULT) { |
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[0504f63] | 213 | g_string_append(out, "-c "); |
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[c2c5c77] | 214 | if (f->fgcolor < 8) { |
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[0504f63] | 215 | g_string_append(out, owl_util_color_to_string(f->fgcolor)); |
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[c2c5c77] | 216 | } |
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| 217 | else { |
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[0504f63] | 218 | g_string_append_printf(out, "%i",f->fgcolor); |
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[c2c5c77] | 219 | } |
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[0504f63] | 220 | g_string_append(out, " "); |
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[8fa9562] | 221 | } |
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| 222 | if (f->bgcolor!=OWL_COLOR_DEFAULT) { |
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[0504f63] | 223 | g_string_append(out, "-b "); |
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[c2c5c77] | 224 | if (f->bgcolor < 8) { |
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[0504f63] | 225 | g_string_append(out, owl_util_color_to_string(f->bgcolor)); |
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[c2c5c77] | 226 | } |
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| 227 | else { |
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[0504f63] | 228 | g_string_append_printf(out, "%i",f->fgcolor); |
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[c2c5c77] | 229 | } |
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[0504f63] | 230 | g_string_append(out, " "); |
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| 231 | } |
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| 232 | if(f->root) { |
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| 233 | owl_filterelement_print(f->root, out); |
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| 234 | g_string_append(out, "\n"); |
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[446aa2b] | 235 | } |
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[0504f63] | 236 | |
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| 237 | return g_string_free(out, 0); |
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[7d4fbcd] | 238 | } |
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| 239 | |
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[40458b9] | 240 | /* Return 1 if the filters 'a' and 'b' are equivalent, 0 otherwise */ |
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[4542047] | 241 | int owl_filter_equiv(const owl_filter *a, const owl_filter *b) |
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[e187445] | 242 | { |
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[0504f63] | 243 | char *buffa, *buffb; |
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| 244 | int ret; |
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[7d4fbcd] | 245 | |
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[0504f63] | 246 | buffa = owl_filter_print(a); |
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| 247 | buffb = owl_filter_print(b); |
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[7d4fbcd] | 248 | |
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[0504f63] | 249 | ret = !strcmp(buffa, buffb); |
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[cdc6ff1] | 250 | ret = ret && !strcmp(owl_filter_get_name(a), |
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| 251 | owl_filter_get_name(b)); |
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[0504f63] | 252 | |
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| 253 | owl_free(buffa); |
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| 254 | owl_free(buffb); |
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| 255 | |
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| 256 | return ret; |
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[7d4fbcd] | 257 | } |
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| 258 | |
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[cb769bb] | 259 | |
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[4542047] | 260 | int owl_filter_is_toodeep(const owl_filter *f) |
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[40458b9] | 261 | { |
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[cb769bb] | 262 | return owl_filterelement_is_toodeep(f, f->root); |
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[40458b9] | 263 | } |
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| 264 | |
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[23fddad] | 265 | void owl_filter_delete(owl_filter *f) |
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[40458b9] | 266 | { |
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[23fddad] | 267 | if (f == NULL) |
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| 268 | return; |
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| 269 | if (f->root) { |
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[cb769bb] | 270 | owl_filterelement_free(f->root); |
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| 271 | owl_free(f->root); |
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[40458b9] | 272 | } |
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[23fddad] | 273 | if (f->name) |
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| 274 | owl_free(f->name); |
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| 275 | owl_free(f); |
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[cb769bb] | 276 | } |
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