lighttpd 1.4.x
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119 lines
3.0 KiB
119 lines
3.0 KiB
#include "first.h"
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#include "array.h"
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#include "configfile.h"
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#include <string.h>
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#include <stdlib.h>
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#ifdef HAVE_PCRE_H
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#include <pcre.h>
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#ifndef PCRE_STUDY_JIT_COMPILE
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#define PCRE_STUDY_JIT_COMPILE 0
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#define pcre_free_study(x) pcre_free(x)
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#endif
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#endif
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__attribute_cold__
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static data_unset *data_config_copy(const data_unset *s) {
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data_config *src = (data_config *)s;
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data_config *ds = data_config_init();
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ds->comp = src->comp;
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if (!buffer_is_unset(&src->key)) {
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buffer_copy_buffer(&ds->key, &src->key);
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ds->comp_key = ds->key.ptr + (src->comp_key - src->key.ptr);
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}
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buffer_copy_buffer(&ds->comp_tag, &src->comp_tag);
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array_copy_array(ds->value, src->value);
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return (data_unset *)ds;
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}
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__attribute_cold__
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static void data_config_free(data_unset *d) {
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data_config *ds = (data_config *)d;
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free(ds->key.ptr);
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free(ds->comp_tag.ptr);
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array_free(ds->value);
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vector_config_weak_clear(&ds->children);
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free(ds->string.ptr);
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#ifdef HAVE_PCRE_H
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if (ds->regex) pcre_free(ds->regex);
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if (ds->regex_study) pcre_free_study(ds->regex_study);
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#endif
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free(d);
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}
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data_config *data_config_init(void) {
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static const struct data_methods fn = {
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data_config_copy,
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data_config_free,
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NULL
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};
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data_config *ds;
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ds = calloc(1, sizeof(*ds));
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force_assert(ds);
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ds->comp_key = "";
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ds->value = array_init(4);
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vector_config_weak_init(&ds->children);
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ds->type = TYPE_CONFIG;
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ds->fn = &fn;
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return ds;
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}
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#include "log.h"
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int data_config_pcre_compile(data_config * const dc, const int pcre_jit, log_error_st * const errh) {
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#ifdef HAVE_PCRE_H
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const char *errptr;
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int erroff, captures;
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dc->regex = pcre_compile(dc->string.ptr, 0, &errptr, &erroff, NULL);
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if (NULL == dc->regex) {
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log_error(errh, __FILE__, __LINE__,
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"parsing regex failed: %s -> %s at offset %d\n",
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dc->string.ptr, errptr, erroff);
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return 0;
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}
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const int study_options = pcre_jit ? PCRE_STUDY_JIT_COMPILE : 0;
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dc->regex_study = pcre_study(dc->regex, study_options, &errptr);
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if (NULL == dc->regex_study && errptr != NULL) {
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log_error(errh, __FILE__, __LINE__,
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"studying regex failed: %s -> %s\n",
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dc->string.ptr, errptr);
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return 0;
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}
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erroff = pcre_fullinfo(dc->regex, dc->regex_study, PCRE_INFO_CAPTURECOUNT,
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&captures);
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if (0 != erroff) {
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log_error(errh, __FILE__, __LINE__,
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"getting capture count for regex failed: %s\n",
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dc->string.ptr);
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return 0;
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}
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else if (captures > 9) {
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log_error(errh, __FILE__, __LINE__,
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"Too many captures in regex, use (?:...) instead of (...): %s\n",
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dc->string.ptr);
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return 0;
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}
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return 1;
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#else
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UNUSED(pcre_jit);
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log_error(errh, __FILE__, __LINE__,
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"can't handle '%s' as you compiled without pcre support. \n"
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"(perhaps just a missing pcre-devel package ?) \n",
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dc->comp_key);
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return 0;
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#endif
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}
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