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@ -9,179 +9,215 @@
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#include <string.h> |
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#include <errno.h> |
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typedef struct { |
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/* unparsed pieces */ |
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buffer *path_pieces_raw; |
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/**
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* |
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* # |
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* # define a pattern for the host url finding |
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* # %% => % sign |
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* # %0 => domain name + tld |
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* # %1 => tld |
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* # %2 => domain name without tld |
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* # %3 => subdomain 1 name |
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* # %4 => subdomain 2 name |
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* # %_ => fqdn (without port info) |
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* # |
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* evhost.path-pattern = "/home/ckruse/dev/www/%3/htdocs/" |
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* |
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*/ |
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/* pieces for path creation */ |
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size_t len; |
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buffer **path_pieces; |
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typedef struct { |
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/* pieces for path creation */ |
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const buffer *path_pieces; |
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} plugin_config; |
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typedef struct { |
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PLUGIN_DATA; |
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plugin_config **config_storage; |
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plugin_config conf; |
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buffer *tmp_buf; |
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array *split_vals; |
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PLUGIN_DATA; |
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plugin_config defaults; |
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plugin_config conf; |
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buffer tmp_buf; |
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array split_vals; |
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} plugin_data; |
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INIT_FUNC(mod_evhost_init) { |
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plugin_data *p; |
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p = calloc(1, sizeof(*p)); |
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return calloc(1, sizeof(plugin_data)); |
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} |
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p->tmp_buf = buffer_init(); |
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p->split_vals = array_init(); |
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static void mod_evhost_free_path_pieces(const buffer *path_pieces) { |
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buffer *b; |
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*(const buffer **)&b = path_pieces; |
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for (; path_pieces->ptr; ++path_pieces) free(path_pieces->ptr); |
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free(b); |
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} |
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return p; |
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static void mod_evhost_free_config(plugin_data * const p) { |
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if (NULL == p->cvlist) return; |
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/* (init i to 0 if global context; to 1 to skip empty global context) */ |
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for (int i = !p->cvlist[0].v.u2[1], used = p->nconfig; i < used; ++i) { |
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config_plugin_value_t *cpv = p->cvlist + p->cvlist[i].v.u2[0]; |
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for (; -1 != cpv->k_id; ++cpv) { |
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if (cpv->vtype != T_CONFIG_LOCAL || NULL == cpv->v.v) continue; |
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switch (cpv->k_id) { |
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case 0: /* evhost.path-pattern */ |
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mod_evhost_free_path_pieces(cpv->v.v); |
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break; |
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default: |
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break; |
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} |
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} |
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} |
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} |
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FREE_FUNC(mod_evhost_free) { |
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plugin_data *p = p_d; |
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UNUSED(srv); |
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if (!p) return HANDLER_GO_ON; |
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if (p->config_storage) { |
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size_t i; |
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for (i = 0; i < srv->config_context->used; i++) { |
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plugin_config *s = p->config_storage[i]; |
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if (NULL == s) continue; |
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plugin_data *p = p_d; |
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if (!p) return HANDLER_GO_ON; |
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UNUSED(srv); |
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if(s->path_pieces) { |
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size_t j; |
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for (j = 0; j < s->len; j++) { |
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buffer_free(s->path_pieces[j]); |
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} |
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free(s->path_pieces); |
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} |
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buffer_free(s->path_pieces_raw); |
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free(s); |
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} |
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free(p->config_storage); |
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} |
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mod_evhost_free_config(p); |
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buffer_free(p->tmp_buf); |
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array_free(p->split_vals); |
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free(p->tmp_buf.ptr); |
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array_free_data(&p->split_vals); |
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free(p); |
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free(p->cvlist); |
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free(p); |
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return HANDLER_GO_ON; |
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return HANDLER_GO_ON; |
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} |
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static int mod_evhost_parse_pattern(plugin_config *s) { |
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char *ptr = s->path_pieces_raw->ptr,*pos; |
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__attribute_cold__ |
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static buffer * mod_evhost_parse_pattern_err(buffer *bptr) { |
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for (; bptr->ptr; ++bptr) free(bptr->ptr); |
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return NULL; |
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} |
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s->path_pieces = NULL; |
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static buffer * mod_evhost_parse_pattern(const char *ptr) { |
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uint32_t used = 0; |
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const uint32_t sz = 127; |
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const char *pos; |
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buffer bptr[sz+1]; /* (128 elements takes 2k on stack in 64-bit) */ |
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memset(bptr, 0, sizeof(bptr)); |
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for(pos=ptr;*ptr;ptr++) { |
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if(*ptr == '%') { |
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size_t len; |
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s->path_pieces = realloc(s->path_pieces,(s->len+2) * sizeof(*s->path_pieces)); |
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s->path_pieces[s->len] = buffer_init(); |
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s->path_pieces[s->len+1] = buffer_init(); |
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if (used >= sz-1) /* (should not happen) */ |
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return mod_evhost_parse_pattern_err(bptr); |
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/* "%%" "%_" "%x" "%{x.y}" where x and y are *single digit* 0 - 9 */ |
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if (ptr[1] == '%' || ptr[1] == '_' || light_isdigit(ptr[1])) { |
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len = 2; |
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} else if (ptr[1] == '{') { |
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if (!light_isdigit(ptr[2])) return -1; |
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if (!light_isdigit(ptr[2])) |
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return mod_evhost_parse_pattern_err(bptr); |
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if (ptr[3] == '.') { |
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if (!light_isdigit(ptr[4])) return -1; |
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if (ptr[5] != '}') return -1; |
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if (!light_isdigit(ptr[4])) |
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return mod_evhost_parse_pattern_err(bptr); |
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if (ptr[5] != '}') |
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return mod_evhost_parse_pattern_err(bptr); |
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len = 6; |
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} else if (ptr[3] == '}') { |
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len = 4; |
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} else { |
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return -1; |
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return mod_evhost_parse_pattern_err(bptr); |
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} |
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} else { |
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return -1; |
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return mod_evhost_parse_pattern_err(bptr); |
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} |
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buffer_copy_string_len(s->path_pieces[s->len],pos,ptr-pos); |
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buffer_copy_string_len(bptr+used, pos, ptr-pos); |
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pos = ptr + len; |
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buffer_copy_string_len(s->path_pieces[s->len+1],ptr,len); |
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buffer_copy_string_len(bptr+used+1, ptr, len); |
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ptr += len - 1; /*(ptr++ in for() loop)*/ |
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s->len += 2; |
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used += 2; |
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} |
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} |
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if(*pos != '\0') { |
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s->path_pieces = realloc(s->path_pieces,(s->len+1) * sizeof(*s->path_pieces)); |
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s->path_pieces[s->len] = buffer_init(); |
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buffer_copy_string_len(s->path_pieces[s->len],pos,ptr-pos); |
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s->len += 1; |
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if (used >= sz) /* (should not happen) */ |
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return mod_evhost_parse_pattern_err(bptr); |
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buffer_copy_string_len(bptr+used, pos, ptr-pos); |
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++used; |
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} |
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return 0; |
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buffer * const path_pieces = |
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malloc(sizeof(bptr) + ((used+1) * sizeof(buffer))); |
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force_assert(path_pieces); |
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return memcpy(path_pieces, bptr, (used+1) * sizeof(buffer)); |
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} |
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SETDEFAULTS_FUNC(mod_evhost_set_defaults) { |
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plugin_data *p = p_d; |
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size_t i; |
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/**
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* |
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* # |
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* # define a pattern for the host url finding |
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* # %% => % sign |
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* # %0 => domain name + tld |
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* # %1 => tld |
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* # %2 => domain name without tld |
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* # %3 => subdomain 1 name |
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* # %4 => subdomain 2 name |
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* # %_ => fqdn (without port info) |
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* # |
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* evhost.path-pattern = "/home/ckruse/dev/www/%3/htdocs/" |
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* |
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*/ |
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config_values_t cv[] = { |
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{ "evhost.path-pattern", NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION }, |
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{ NULL, NULL, T_CONFIG_UNSET, T_CONFIG_SCOPE_UNSET } |
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}; |
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if (!p) return HANDLER_ERROR; |
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p->config_storage = calloc(srv->config_context->used, sizeof(plugin_config *)); |
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for (i = 0; i < srv->config_context->used; i++) { |
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data_config const* config = (data_config const*)srv->config_context->data[i]; |
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plugin_config *s; |
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s = calloc(1, sizeof(plugin_config)); |
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s->path_pieces_raw = buffer_init(); |
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s->path_pieces = NULL; |
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s->len = 0; |
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cv[0].destination = s->path_pieces_raw; |
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p->config_storage[i] = s; |
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if (0 != config_insert_values_global(srv, config->value, cv, i == 0 ? T_CONFIG_SCOPE_SERVER : T_CONFIG_SCOPE_CONNECTION)) { |
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return HANDLER_ERROR; |
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} |
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static void mod_evhost_merge_config_cpv(plugin_config * const pconf, const config_plugin_value_t * const cpv) { |
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switch (cpv->k_id) { /* index into static config_plugin_keys_t cpk[] */ |
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case 0: /* evhost.path-pattern */ |
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if (cpv->vtype == T_CONFIG_LOCAL) |
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pconf->path_pieces = cpv->v.v; |
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break; |
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default:/* should not happen */ |
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return; |
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} |
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} |
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if (!buffer_string_is_empty(s->path_pieces_raw)) { |
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if (0 != mod_evhost_parse_pattern(s)) { |
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log_error_write(srv, __FILE__, __LINE__, "sb", "invalid evhost.path-pattern:", s->path_pieces_raw); |
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return HANDLER_ERROR; |
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} |
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} |
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} |
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static void mod_evhost_merge_config(plugin_config * const pconf, const config_plugin_value_t *cpv) { |
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do { |
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mod_evhost_merge_config_cpv(pconf, cpv); |
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} while ((++cpv)->k_id != -1); |
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} |
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return HANDLER_GO_ON; |
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static void mod_evhost_patch_config(connection * const con, plugin_data * const p) { |
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memcpy(&p->conf, &p->defaults, sizeof(plugin_config)); |
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for (int i = 1, used = p->nconfig; i < used; ++i) { |
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if (config_check_cond(con, (uint32_t)p->cvlist[i].k_id)) |
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mod_evhost_merge_config(&p->conf, p->cvlist + p->cvlist[i].v.u2[0]); |
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} |
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} |
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SETDEFAULTS_FUNC(mod_evhost_set_defaults) { |
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static const config_plugin_keys_t cpk[] = { |
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{ CONST_STR_LEN("evhost.path-pattern"), |
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T_CONFIG_STRING, |
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T_CONFIG_SCOPE_CONNECTION } |
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,{ NULL, 0, |
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T_CONFIG_UNSET, |
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T_CONFIG_SCOPE_UNSET } |
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}; |
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plugin_data * const p = p_d; |
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if (!config_plugin_values_init(srv, p, cpk, "mod_evhost")) |
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return HANDLER_ERROR; |
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/* process and validate config directives
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* (init i to 0 if global context; to 1 to skip empty global context) */ |
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for (int i = !p->cvlist[0].v.u2[1]; i < p->nconfig; ++i) { |
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config_plugin_value_t *cpv = p->cvlist + p->cvlist[i].v.u2[0]; |
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for (; -1 != cpv->k_id; ++cpv) { |
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switch (cpv->k_id) { |
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case 0: /* evhost.path-pattern */ |
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if (!buffer_string_is_empty(cpv->v.b)) { |
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const char * const ptr = cpv->v.b->ptr; |
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cpv->v.v = mod_evhost_parse_pattern(ptr); |
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if (NULL == cpv->v.v) { |
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log_error(srv->errh, __FILE__, __LINE__, |
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"invalid evhost.path-pattern: %s", ptr); |
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return HANDLER_ERROR; |
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} |
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cpv->vtype = T_CONFIG_LOCAL; |
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} |
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break; |
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default:/* should not happen */ |
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break; |
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} |
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} |
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} |
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/* initialize p->defaults from global config context */ |
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if (p->nconfig > 0 && p->cvlist->v.u2[1]) { |
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const config_plugin_value_t *cpv = p->cvlist + p->cvlist->v.u2[0]; |
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if (-1 != cpv->k_id) |
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mod_evhost_merge_config(&p->defaults, cpv); |
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} |
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return HANDLER_GO_ON; |
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} |
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/**
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@ -252,45 +288,12 @@ static void mod_evhost_parse_host(buffer *key, array *host, buffer *authority) {
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} |
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} |
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#define PATCH(x) \ |
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p->conf.x = s->x; |
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static int mod_evhost_patch_connection(server *srv, connection *con, plugin_data *p) { |
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size_t i, j; |
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plugin_config *s = p->config_storage[0]; |
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PATCH(path_pieces); |
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PATCH(len); |
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/* skip the first, the global context */ |
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for (i = 1; i < srv->config_context->used; i++) { |
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if (!config_check_cond(con, i)) continue; /* condition not matched */ |
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data_config *dc = (data_config *)srv->config_context->data[i]; |
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s = p->config_storage[i]; |
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/* merge config */ |
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for (j = 0; j < dc->value->used; j++) { |
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data_unset *du = dc->value->data[j]; |
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if (buffer_is_equal_string(&du->key, CONST_STR_LEN("evhost.path-pattern"))) { |
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PATCH(path_pieces); |
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PATCH(len); |
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} |
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} |
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} |
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return 0; |
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} |
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#undef PATCH |
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static void mod_evhost_build_doc_root_path(buffer *b, array *parsed_host, buffer *authority, buffer **path_pieces, const size_t npieces) { |
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static void mod_evhost_build_doc_root_path(buffer *b, array *parsed_host, buffer *authority, const buffer *path_pieces) { |
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array_reset_data_strings(parsed_host); |
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mod_evhost_parse_host(b, parsed_host, authority); |
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buffer_clear(b); |
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for (size_t i = 0; i < npieces; ++i) { |
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const char *ptr = path_pieces[i]->ptr; |
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for (const char *ptr; (ptr = path_pieces->ptr); ++path_pieces) { |
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if (*ptr == '%') { |
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const data_string *ds; |
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@ -321,13 +324,13 @@ static void mod_evhost_build_doc_root_path(buffer *b, array *parsed_host, buffer
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} else { |
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/* unhandled %-sequence */ |
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} |
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} else if (NULL != (ds = (data_string *)array_get_element_klen(parsed_host, CONST_BUF_LEN(path_pieces[i])))) { |
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} else if (NULL != (ds = (data_string *)array_get_element_klen(parsed_host, CONST_BUF_LEN(path_pieces)))) { |
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buffer_append_string_buffer(b, &ds->value); |
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} else { |
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/* unhandled %-sequence */ |
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} |
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} else { |
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buffer_append_string_buffer(b, path_pieces[i]); |
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buffer_append_string_buffer(b, path_pieces); |
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} |
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} |
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@ -341,21 +344,20 @@ static handler_t mod_evhost_uri_handler(server *srv, connection *con, void *p_d)
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/* not authority set */ |
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if (buffer_string_is_empty(con->uri.authority)) return HANDLER_GO_ON; |
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mod_evhost_patch_connection(srv, con, p); |
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mod_evhost_patch_config(con, p); |
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/* missing even default(global) conf */ |
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if (0 == p->conf.len) { |
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return HANDLER_GO_ON; |
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} |
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if (NULL == p->conf.path_pieces) return HANDLER_GO_ON; |
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mod_evhost_build_doc_root_path(p->tmp_buf, p->split_vals, con->uri.authority, p->conf.path_pieces, p->conf.len); |
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buffer * const b = &p->tmp_buf; |
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mod_evhost_build_doc_root_path(b, &p->split_vals, con->uri.authority, p->conf.path_pieces); |
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if (HANDLER_ERROR == stat_cache_get_entry(srv, con, p->tmp_buf, &sce)) { |
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log_error_write(srv, __FILE__, __LINE__, "sb", strerror(errno), p->tmp_buf); |
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if (HANDLER_ERROR == stat_cache_get_entry(srv, con, b, &sce)) { |
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log_error_write(srv, __FILE__, __LINE__, "sb", strerror(errno), b); |
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} else if(!S_ISDIR(sce->st.st_mode)) { |
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log_error_write(srv, __FILE__, __LINE__, "sb", "not a directory:", p->tmp_buf); |
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log_error_write(srv, __FILE__, __LINE__, "sb", "not a directory:", b); |
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} else { |
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buffer_copy_buffer(con->physical.doc_root, p->tmp_buf); |
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buffer_copy_buffer(con->physical.doc_root, b); |
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} |
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return HANDLER_GO_ON; |
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@ -372,5 +374,3 @@ int mod_evhost_plugin_init(plugin *p) {
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return 0; |
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} |
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/* eof */ |
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