adamc@436: #define _XOPEN_SOURCE
adamc@436: 
adamc@117: #include <stdlib.h>
adamc@102: #include <stdio.h>
adamc@117: #include <string.h>
adamc@457: #include <strings.h>
adamc@106: #include <ctype.h>
adamc@167: #include <setjmp.h>
adamc@167: #include <stdarg.h>
adamc@102: 
adamc@102: #include "types.h"
adamc@102: 
adamc@311: uw_unit uw_unit_v = {};
adamc@102: 
adamc@167: #define ERROR_BUF_LEN 1024
adamc@167: 
adamc@323: typedef struct regions {
adamc@323:   struct regions *next;
adamc@323: } regions;
adamc@323: 
adamc@425: typedef struct {
adamc@425:   void (*func)(void*);
adamc@425:   void *arg;
adamc@425: } cleanup;
adamc@425: 
adamc@311: struct uw_context {
adamc@457:   char *headers;
adamc@457: 
adamc@117:   char *page, *page_front, *page_back;
adamc@136:   char *heap, *heap_front, *heap_back;
adamc@144:   char **inputs;
adamc@167: 
adamc@272:   void *db;
adamc@272: 
adamc@167:   jmp_buf jmp_buf;
adamc@167: 
adamc@323:   regions *regions;
adamc@323: 
adamc@425:   cleanup *cleanup, *cleanup_front, *cleanup_back;
adamc@425: 
adamc@167:   char error_message[ERROR_BUF_LEN];
adamc@117: };
adamc@117: 
adamc@311: extern int uw_inputs_len;
adamc@144: 
adamc@311: uw_context uw_init(size_t page_len, size_t heap_len) {
adamc@311:   uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136: 
adamc@457:   ctx->headers = NULL;
adamc@457: 
adamc@117:   ctx->page_front = ctx->page = malloc(page_len);
adamc@117:   ctx->page_back = ctx->page_front + page_len;
adamc@136: 
adamc@136:   ctx->heap_front = ctx->heap = malloc(heap_len);
adamc@136:   ctx->heap_back = ctx->heap_front + heap_len;
adamc@136: 
adamc@311:   ctx->inputs = calloc(uw_inputs_len, sizeof(char *));
adamc@144: 
adamc@272:   ctx->db = NULL;
adamc@272: 
adamc@323:   ctx->regions = NULL;
adamc@323: 
adamc@425:   ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425: 
adamc@167:   ctx->error_message[0] = 0;
adamc@167: 
adamc@117:   return ctx;
adamc@106: }
adamc@106: 
adamc@311: void uw_set_db(uw_context ctx, void *db) {
adamc@272:   ctx->db = db;
adamc@272: }
adamc@272: 
adamc@311: void *uw_get_db(uw_context ctx) {
adamc@272:   return ctx->db;
adamc@272: }
adamc@272: 
adamc@311: void uw_free(uw_context ctx) {
adamc@117:   free(ctx->page);
adamc@136:   free(ctx->heap);
adamc@144:   free(ctx->inputs);
adamc@425:   free(ctx->cleanup);
adamc@136:   free(ctx);
adamc@136: }
adamc@136: 
adamc@311: void uw_reset_keep_request(uw_context ctx) {
adamc@138:   ctx->page_front = ctx->page;
adamc@138:   ctx->heap_front = ctx->heap;
adamc@323:   ctx->regions = NULL;
adamc@425:   ctx->cleanup_front = ctx->cleanup;
adamc@167: 
adamc@167:   ctx->error_message[0] = 0;
adamc@167: }
adamc@167: 
adamc@311: void uw_reset_keep_error_message(uw_context ctx) {
adamc@167:   ctx->page_front = ctx->page;
adamc@167:   ctx->heap_front = ctx->heap;
adamc@323:   ctx->regions = NULL;
adamc@425:   ctx->cleanup_front = ctx->cleanup;
adamc@167: }
adamc@167: 
adamc@311: void uw_reset(uw_context ctx) {
adamc@311:   uw_reset_keep_request(ctx);
adamc@311:   memset(ctx->inputs, 0, uw_inputs_len * sizeof(char *));
adamc@144: }
adamc@144: 
adamc@311: void uw_db_init(uw_context);
adamc@311: void uw_handle(uw_context, char *);
adamc@167: 
adamc@311: failure_kind uw_begin_init(uw_context ctx) {
adamc@272:   int r = setjmp(ctx->jmp_buf);
adamc@272: 
adamc@272:   if (r == 0)
adamc@311:     uw_db_init(ctx);
adamc@272: 
adamc@272:   return r;
adamc@272: }
adamc@272: 
adamc@457: failure_kind uw_begin(uw_context ctx, char *headers, char *path) {
adamc@190:   int r = setjmp(ctx->jmp_buf);
adamc@190: 
adamc@457:   ctx->headers = headers;
adamc@457: 
adamc@190:   if (r == 0)
adamc@311:     uw_handle(ctx, path);
adamc@167: 
adamc@190:   return r;
adamc@167: }
adamc@167: 
adamc@311: __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425:   cleanup *cl;
adamc@425: 
adamc@167:   va_list ap;
adamc@167:   va_start(ap, fmt);
adamc@167: 
adamc@167:   vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167: 
adamc@425:   for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425:     cl->func(cl->arg);
adamc@425: 
adamc@425:   ctx->cleanup_front = ctx->cleanup;
adamc@425: 
adamc@190:   longjmp(ctx->jmp_buf, fk);
adamc@167: }
adamc@167: 
adamc@425: void uw_push_cleanup(uw_context ctx, void (*func)(void *), void *arg) {
adamc@425:   if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425:     int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425:     if (len == 0)
adamc@425:       newLen = 1;
adamc@425:     else
adamc@428:       newLen = len * 2;
adamc@425:     ctx->cleanup = realloc(ctx->cleanup, newLen);
adamc@425:     ctx->cleanup_front = ctx->cleanup + len;
adamc@425:     ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425:   }
adamc@425: 
adamc@425:   ctx->cleanup_front->func = func;
adamc@425:   ctx->cleanup_front->arg = arg;
adamc@425:   ++ctx->cleanup_front;
adamc@425: }
adamc@425: 
adamc@425: void uw_pop_cleanup(uw_context ctx) {
adamc@425:   if (ctx->cleanup_front == ctx->cleanup)
adamc@425:     uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425: 
adamc@425:   --ctx->cleanup_front;
adamc@425:   ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425: }
adamc@425: 
adamc@311: char *uw_error_message(uw_context ctx) {
adamc@167:   return ctx->error_message;
adamc@167: }
adamc@167: 
adamc@311: int uw_input_num(char*);
adamc@144: 
adamc@311: void uw_set_input(uw_context ctx, char *name, char *value) {
adamc@311:   int n = uw_input_num(name);
adamc@144: 
adamc@169:   if (n < 0)
adamc@311:     uw_error(ctx, FATAL, "Bad input name %s", name);
adamc@144: 
adamc@311:   if (n >= uw_inputs_len)
adamc@311:     uw_error(ctx, FATAL, "For input name %s, index %d is out of range", name, n);
adamc@169: 
adamc@144:   ctx->inputs[n] = value;
adamc@144: 
adamc@282:   //printf("[%d] %s = %s\n", n, name, value);
adamc@144: }
adamc@144: 
adamc@311: char *uw_get_input(uw_context ctx, int n) {
adamc@169:   if (n < 0)
adamc@311:     uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311:   if (n >= uw_inputs_len)
adamc@311:     uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@282:   //printf("[%d] = %s\n", n, ctx->inputs[n]);
adamc@144:   return ctx->inputs[n];
adamc@138: }
adamc@138: 
adamc@311: char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190:   if (n < 0)
adamc@311:     uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@311:   if (n >= uw_inputs_len)
adamc@311:     uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@426:   //printf("[%d] = %s\n", n, ctx->inputs[n]);
adamc@190:   return (ctx->inputs[n] == NULL ? "" : ctx->inputs[n]);
adamc@190: }
adamc@190: 
adamc@311: static void uw_check_heap(uw_context ctx, size_t extra) {
adamc@136:   if (ctx->heap_back - ctx->heap_front < extra) {
adamc@321:     size_t desired = ctx->heap_front - ctx->heap + extra, next;
adamc@136:     char *new_heap;
adamc@136: 
adamc@317:     next = ctx->heap_back - ctx->heap;
adamc@317:     if (next == 0)
adamc@317:       next = 1;
adamc@317:     for (; next < desired; next *= 2);
adamc@136: 
adamc@136:     new_heap = realloc(ctx->heap, next);
adamc@321:     ctx->heap_front = new_heap + (ctx->heap_front - ctx->heap);
adamc@169:     ctx->heap_back = new_heap + next;
adamc@136: 
adamc@136:     if (new_heap != ctx->heap) {
adamc@136:       ctx->heap = new_heap;
adamc@311:       uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new heap chunk contiguously");
adamc@136:     }
adamc@136: 
adamc@169:     ctx->heap = new_heap;
adamc@136:   }
adamc@136: }
adamc@136: 
adamc@311: void *uw_malloc(uw_context ctx, size_t len) {
adamc@136:   void *result;
adamc@136: 
adamc@311:   uw_check_heap(ctx, len);
adamc@136: 
adamc@136:   result = ctx->heap_front;
adamc@136:   ctx->heap_front += len;
adamc@136:   return result;
adamc@117: }
adamc@117: 
adamc@323: void uw_begin_region(uw_context ctx) {
adamc@323:   regions *r = (regions *) ctx->heap_front;
adamc@323: 
adamc@323:   uw_check_heap(ctx, sizeof(regions));
adamc@323: 
adamc@323:   ctx->heap_front += sizeof(regions);
adamc@323: 
adamc@323:   r->next = ctx->regions;
adamc@323:   ctx->regions = r;
adamc@323: }
adamc@323: 
adamc@323: void uw_end_region(uw_context ctx) {
adamc@323:   regions *r = ctx->regions;
adamc@323: 
adamc@323:   if (r == NULL)
adamc@323:     uw_error(ctx, FATAL, "Region stack underflow");
adamc@323: 
adamc@323:   ctx->heap_front = (char *) r;
adamc@323:   ctx->regions = r->next;
adamc@323: }
adamc@323: 
adamc@324: void uw_memstats(uw_context ctx) {
adamc@324:   printf("Page: %d/%d\n", ctx->page_front - ctx->page, ctx->page_back - ctx->page);
adamc@324:   printf("Heap: %d/%d\n", ctx->heap_front - ctx->heap, ctx->heap_back - ctx->heap);
adamc@324: }
adamc@324: 
adamc@436: int uw_really_send(int sock, const void *buf, size_t len) {
adamc@117:   while (len > 0) {
adamc@436:     size_t n = send(sock, buf, len, 0);
adamc@117: 
adamc@117:     if (n < 0)
adamc@117:       return n;
adamc@117: 
adamc@117:     buf += n;
adamc@117:     len -= n;
adamc@117:   }
adamc@117: 
adamc@117:   return 0;
adamc@117: }
adamc@117: 
adamc@311: int uw_send(uw_context ctx, int sock) {
adamc@311:   return uw_really_send(sock, ctx->page, ctx->page_front - ctx->page);
adamc@117: }
adamc@117: 
adamc@311: static void uw_check(uw_context ctx, size_t extra) {
adamc@321:   size_t desired = ctx->page_front - ctx->page + extra, next;
adamc@117:   char *new_page;
adamc@117: 
adamc@317:   next = ctx->page_back - ctx->page;
adamc@428:   if (next < desired) {
adamc@428:     if (next == 0)
adamc@428:       next = 1;
adamc@428:     for (; next < desired; next *= 2);
adamc@117: 
adamc@428:     new_page = realloc(ctx->page, next);
adamc@428:     ctx->page_front = new_page + (ctx->page_front - ctx->page);
adamc@428:     ctx->page_back = new_page + next;
adamc@428:     ctx->page = new_page;
adamc@428:   }
adamc@117: }
adamc@117: 
adamc@311: static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@117:   *(ctx->page_front)++ = c;
adamc@117: }
adamc@117: 
adamc@311: void uw_writec(uw_context ctx, char c) {
adamc@311:   uw_check(ctx, 1);
adamc@311:   uw_writec_unsafe(ctx, c);
adamc@117: }
adamc@117: 
adamc@311: static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117:   int len = strlen(s);
adamc@117:   memcpy(ctx->page_front, s, len);
adamc@117:   ctx->page_front += len;
adamc@117: }
adamc@117: 
adamc@311: void uw_write(uw_context ctx, const char* s) {
adamc@311:   uw_check(ctx, strlen(s) + 1);
adamc@311:   uw_write_unsafe(ctx, s);
adamc@183:   *ctx->page_front = 0;
adamc@102: }
adamc@106: 
adamc@135: 
adamc@311: char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136:   char *result;
adamc@136:   int len;
adamc@311:   uw_check_heap(ctx, INTS_MAX);
adamc@136:   result = ctx->heap_front;
adamc@276:   sprintf(result, "%lld%n", n, &len);
adamc@137:   ctx->heap_front += len+1;
adamc@136:   return result;
adamc@106: }
adamc@106: 
adamc@311: char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136:   char *result;
adamc@136:   int len;
adamc@311:   uw_check_heap(ctx, FLOATS_MAX);
adamc@136:   result = ctx->heap_front;
adamc@136:   sprintf(result, "%g%n", n, &len);
adamc@137:   ctx->heap_front += len+1;
adamc@136:   return result;
adamc@106: }
adamc@106: 
adamc@311: char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136:   int len = strlen(s);
adamc@136:   char *result, *p;
adamc@311:   uw_check_heap(ctx, len * 6 + 1);
adamc@136: 
adamc@136:   result = p = ctx->heap_front;
adamc@136: 
adamc@136:   for (; *s; s++) {
adamc@136:     char c = *s;
adamc@136: 
adamc@136:     if (c == '"') {
adamc@136:       strcpy(p, "&quot;");
adamc@136:       p += 6;
adamc@136:     } else if (c == '&') {
adamc@136:       strcpy(p, "&amp;");
adamc@136:       p += 5;
adamc@136:     }
adamc@136:     else if (isprint(c))
adamc@136:       *p++ = c;
adamc@136:     else {
adamc@136:       int len2;
adamc@136:       sprintf(p, "&#%d;%n", c, &len2);
adamc@136:       p += len2;
adamc@136:     }
adamc@136:   }
adamc@136: 
adamc@137:   *p++ = 0;
adamc@136:   ctx->heap_front = p;
adamc@136:   return result;
adamc@106: }
adamc@106: 
adamc@311: static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117:   int len;
adamc@117: 
adamc@276:   sprintf(ctx->page_front, "%lld%n", n, &len);
adamc@117:   ctx->page_front += len;
adamc@106: }
adamc@106: 
adamc@428: uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311:   uw_check(ctx, INTS_MAX);
adamc@311:   uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428: 
adamc@428:   return uw_unit_v;
adamc@106: }
adamc@106: 
adamc@428: uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117:   int len;
adamc@117: 
adamc@311:   uw_check(ctx, FLOATS_MAX);
adamc@117:   sprintf(ctx->page_front, "%g%n", n, &len);
adamc@117:   ctx->page_front += len;
adamc@428: 
adamc@428:   return uw_unit_v;
adamc@117: }
adamc@117: 
adamc@428: uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311:   uw_check(ctx, strlen(s) * 6);
adamc@117: 
adamc@106:   for (; *s; s++) {
adamc@106:     char c = *s;
adamc@106: 
adamc@106:     if (c == '"')
adamc@311:       uw_write_unsafe(ctx, "&quot;");
adamc@136:     else if (c == '&')
adamc@311:       uw_write_unsafe(ctx, "&amp;");
adamc@106:     else if (isprint(c))
adamc@311:       uw_writec_unsafe(ctx, c);
adamc@106:     else {
adamc@311:       uw_write_unsafe(ctx, "&#");
adamc@311:       uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311:       uw_writec_unsafe(ctx, ';');
adamc@106:     }
adamc@106:   }
adamc@428: 
adamc@428:   return uw_unit_v;
adamc@106: }
adamc@120: 
adamc@120: 
adamc@311: char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137:   int len;
adamc@137:   char *r;
adamc@137: 
adamc@311:   uw_check_heap(ctx, INTS_MAX);
adamc@137:   r = ctx->heap_front;
adamc@276:   sprintf(r, "%lld%n", n, &len);
adamc@137:   ctx->heap_front += len+1;
adamc@137:   return r;
adamc@120: }
adamc@120: 
adamc@311: char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137:   int len;
adamc@137:   char *r;
adamc@137: 
adamc@311:   uw_check_heap(ctx, FLOATS_MAX);
adamc@137:   r = ctx->heap_front;
adamc@137:   sprintf(r, "%g%n", n, &len);
adamc@137:   ctx->heap_front += len+1;
adamc@137:   return r;
adamc@120: }
adamc@120: 
adamc@311: char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137:   char *r, *p;
adamc@137: 
adamc@311:   uw_check_heap(ctx, strlen(s) * 3 + 1);
adamc@137: 
adamc@137:   for (r = p = ctx->heap_front; *s; s++) {
adamc@137:     char c = *s;
adamc@137: 
adamc@137:     if (c == ' ')
adamc@137:       *p++ = '+';
adamc@137:     else if (isalnum(c))
adamc@137:       *p++ = c;
adamc@137:     else {
adamc@137:       sprintf(p, "%%%02X", c);
adamc@137:       p += 3;
adamc@137:     }
adamc@137:   }
adamc@137: 
adamc@137:   *p++ = 0;
adamc@137:   ctx->heap_front = p;
adamc@137:   return r;
adamc@120: }
adamc@120: 
adamc@311: char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311:   if (b == uw_Basis_False)
adamc@186:     return "0";
adamc@186:   else
adamc@186:     return "1";
adamc@186: }
adamc@186: 
adamc@311: static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120:   int len;
adamc@120: 
adamc@276:   sprintf(ctx->page_front, "%lld%n", n, &len);
adamc@120:   ctx->page_front += len;
adamc@120: }
adamc@120: 
adamc@428: uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311:   uw_check(ctx, INTS_MAX);
adamc@311:   uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428: 
adamc@428:   return uw_unit_v;
adamc@120: }
adamc@120: 
adamc@428: uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120:   int len;
adamc@120: 
adamc@311:   uw_check(ctx, FLOATS_MAX);
adamc@120:   sprintf(ctx->page_front, "%g%n", n, &len);
adamc@120:   ctx->page_front += len;
adamc@428: 
adamc@428:   return uw_unit_v;
adamc@120: }
adamc@120: 
adamc@428: uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311:   uw_check(ctx, strlen(s) * 3);
adamc@120: 
adamc@120:   for (; *s; s++) {
adamc@120:     char c = *s;
adamc@120: 
adamc@120:     if (c == ' ')
adamc@311:       uw_writec_unsafe(ctx, '+');
adamc@120:     else if (isalnum(c))
adamc@311:       uw_writec_unsafe(ctx, c);
adamc@120:     else {
adamc@120:       sprintf(ctx->page_front, "%%%02X", c);
adamc@120:       ctx->page_front += 3;
adamc@120:     }
adamc@120:   }
adamc@428: 
adamc@428:   return uw_unit_v;
adamc@120: }
adamc@120: 
adamc@428: uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311:   if (b == uw_Basis_False)
adamc@311:     uw_writec(ctx, '0');
adamc@186:   else
adamc@311:     uw_writec(ctx, '1');
adamc@428: 
adamc@428:   return uw_unit_v;
adamc@186: }
adamc@186: 
adamc@120: 
adamc@311: static char *uw_unurlify_advance(char *s) {
adamc@144:   char *new_s = strchr(s, '/');
adamc@120: 
adamc@120:   if (new_s)
adamc@120:     *new_s++ = 0;
adamc@120:   else
adamc@144:     new_s = strchr(s, 0);
adamc@144: 
adamc@144:   return new_s;
adamc@144: }
adamc@144: 
adamc@311: uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311:   char *new_s = uw_unurlify_advance(*s);
adamc@311:   uw_Basis_int r;
adamc@120: 
adamc@276:   r = atoll(*s);
adamc@120:   *s = new_s;
adamc@120:   return r;
adamc@120: }
adamc@120: 
adamc@311: uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311:   char *new_s = uw_unurlify_advance(*s);
adamc@311:   uw_Basis_float r;
adamc@120: 
adamc@120:   r = atof(*s);
adamc@120:   *s = new_s;
adamc@120:   return r;
adamc@120: }
adamc@120: 
adamc@311: static uw_Basis_string uw_unurlifyString_to(uw_context ctx, char *r, char *s) {
adamc@144:   char *s1, *s2;
adamc@144:   int n;
adamc@136: 
adamc@144:   for (s1 = r, s2 = s; *s2; ++s1, ++s2) {
adamc@136:     char c = *s2;
adamc@136: 
adamc@136:     switch (c) {
adamc@136:     case '+':
adamc@136:       *s1 = ' ';
adamc@136:       break;
adamc@136:     case '%':
adamc@169:       if (s2[1] == 0)
adamc@311:         uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169:       if (s2[2] == 0)
adamc@311:         uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169:       if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311:         uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136:       *s1 = n;
adamc@136:       s2 += 2;
adamc@136:       break;
adamc@136:     default:
adamc@136:       *s1 = c;
adamc@136:     }
adamc@136:   }
adamc@136:   *s1++ = 0;
adamc@144:   return s1;
adamc@144: }
adamc@144: 
adamc@311: uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311:   char *new_s = uw_unurlify_advance(*s);
adamc@311:   uw_Basis_bool r;
adamc@186:   
adamc@186:   if (*s[0] == 0 || !strcmp(*s, "0") || !strcmp(*s, "off"))
adamc@311:     r = uw_Basis_False;
adamc@186:   else
adamc@311:     r = uw_Basis_True;
adamc@186: 
adamc@186:   *s = new_s;
adamc@186:   return r;
adamc@186: }
adamc@186: 
adamc@311: uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311:   char *new_s = uw_unurlify_advance(*s);
adamc@144:   char *r, *s1, *s2;
adamc@144:   int len, n;
adamc@144: 
adamc@200:   len = strlen(*s);
adamc@311:   uw_check_heap(ctx, len + 1);
adamc@144: 
adamc@144:   r = ctx->heap_front;
adamc@311:   ctx->heap_front = uw_unurlifyString_to(ctx, ctx->heap_front, *s);
adamc@136:   *s = new_s;
adamc@136:   return r;
adamc@120: }
adamc@135: 
adamc@135: 
adamc@311: char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286:   int len;
adamc@286:   char *r;
adamc@286: 
adamc@311:   uw_check_heap(ctx, INTS_MAX);
adamc@286:   r = ctx->heap_front;
adamc@286:   sprintf(r, "%lld%n", n, &len);
adamc@286:   ctx->heap_front += len+1;
adamc@286:   return r;
adamc@286: }
adamc@286: 
adamc@428: uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286:   int len;
adamc@286: 
adamc@311:   uw_check(ctx, INTS_MAX);
adamc@286:   sprintf(ctx->page_front, "%lld%n", n, &len);
adamc@286:   ctx->page_front += len;
adamc@428:   
adamc@428:   return uw_unit_v;
adamc@286: }
adamc@286: 
adamc@311: char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286:   int len;
adamc@286:   char *r;
adamc@286: 
adamc@311:   uw_check_heap(ctx, FLOATS_MAX);
adamc@286:   r = ctx->heap_front;
adamc@286:   sprintf(r, "%g%n", n, &len);
adamc@286:   ctx->heap_front += len+1;
adamc@286:   return r;
adamc@286: }
adamc@286: 
adamc@428: uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286:   int len;
adamc@286: 
adamc@311:   uw_check(ctx, FLOATS_MAX);
adamc@286:   sprintf(ctx->page_front, "%g%n", n, &len);
adamc@286:   ctx->page_front += len;
adamc@428: 
adamc@428:   return uw_unit_v;
adamc@286: }
adamc@286: 
adamc@311: char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137:   char *r, *s2;
adamc@137: 
adamc@311:   uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137: 
adamc@137:   for (r = s2 = ctx->heap_front; *s; s++) {
adamc@137:     char c = *s;
adamc@137: 
adamc@137:     switch (c) {
adamc@137:     case '<':
adamc@137:       strcpy(s2, "&lt;");
adamc@137:       s2 += 4;
adamc@137:       break;
adamc@137:     case '&':
adamc@137:       strcpy(s2, "&amp;");
adamc@137:       s2 += 5;
adamc@137:       break;
adamc@137:     default:
adamc@137:       if (isprint(c))
adamc@137:         *s2++ = c;
adamc@137:       else {
adamc@137:         int len2;
adamc@137:         sprintf(s2, "&#%d;%n", c, &len2);
adamc@137:         s2 += len2;
adamc@137:       }
adamc@137:     }
adamc@137:   }
adamc@137: 
adamc@137:   *s2++ = 0;
adamc@137:   ctx->heap_front = s2;
adamc@137:   return r;
adamc@135: }
adamc@135: 
adamc@428: uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321:   uw_check(ctx, strlen(s) * 6);
adamc@135: 
adamc@135:   for (; *s; s++) {
adamc@135:     char c = *s;
adamc@135: 
adamc@135:     switch (c) {
adamc@135:     case '<':
adamc@311:       uw_write_unsafe(ctx, "&lt;");
adamc@135:       break;
adamc@135:     case '&':
adamc@311:       uw_write_unsafe(ctx, "&amp;");
adamc@135:       break;
adamc@135:     default:
adamc@135:       if (isprint(c))
adamc@311:         uw_writec_unsafe(ctx, c);
adamc@135:       else {
adamc@311:         uw_write_unsafe(ctx, "&#");
adamc@311:         uw_Basis_attrifyInt_w_unsafe(ctx, c);
adamc@311:         uw_writec_unsafe(ctx, ';');
adamc@135:       }
adamc@135:     }
adamc@135:   }
adamc@428: 
adamc@428:   return uw_unit_v;
adamc@135: }
adamc@180: 
adamc@311: uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311:   if (b == uw_Basis_False)
adamc@286:     return "False";
adamc@286:   else
adamc@286:     return "True";
adamc@286: }
adamc@286: 
adamc@428: uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311:   if (b == uw_Basis_False) {
adamc@311:     uw_check(ctx, 6);
adamc@286:     strcpy(ctx->page_front, "False");
adamc@286:     ctx->page_front += 5;
adamc@286:   } else {
adamc@311:     uw_check(ctx, 5);
adamc@286:     strcpy(ctx->page_front, "True");
adamc@286:     ctx->page_front += 4;
adamc@286:   }
adamc@428: 
adamc@428:   return uw_unit_v;
adamc@286: }
adamc@286: 
adamc@436: #define TIME_FMT "%x %X"
adamc@438: #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436: 
adamc@436: uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436:   size_t len;
adamc@436:   char *r;
adamc@436:   struct tm stm;
adamc@436: 
adamc@436:   if (localtime_r(&t, &stm)) {
adamc@436:     uw_check_heap(ctx, TIMES_MAX);
adamc@436:     r = ctx->heap_front;
adamc@436:     len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@436:     ctx->heap_front += len+1;
adamc@436:     return r;
adamc@436:   } else
adamc@436:     return "<i>Invalid time</i>";
adamc@436: }
adamc@436: 
adamc@436: uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436:   size_t len;
adamc@436:   char *r;
adamc@436:   struct tm stm;
adamc@436: 
adamc@436:   if (localtime_r(&t, &stm)) {
adamc@436:     uw_check(ctx, TIMES_MAX);
adamc@436:     r = ctx->page_front;
adamc@436:     len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@436:     ctx->page_front += len;
adamc@436:   } else {
adamc@436:     uw_check(ctx, 20);
adamc@436:     strcpy(ctx->page_front, "<i>Invalid time</i>");
adamc@436:     ctx->page_front += 19;
adamc@436:   }
adamc@436: 
adamc@436:   return uw_unit_v;
adamc@436: }
adamc@436: 
adamc@311: uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@180:   int len = strlen(s1) + strlen(s2) + 1;
adamc@180:   char *s;
adamc@180: 
adamc@311:   uw_check_heap(ctx, len);
adamc@180: 
adamc@180:   s = ctx->heap_front;
adamc@180: 
adamc@180:   strcpy(s, s1);
adamc@180:   strcat(s, s2);
adamc@180:   ctx->heap_front += len;
adamc@180: 
adamc@180:   return s;
adamc@180: }
adamc@278: 
adamc@311: uw_Basis_string uw_Basis_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@278:   int len = strlen(s1) + 1;
adamc@278:   char *s;
adamc@278: 
adamc@311:   uw_check_heap(ctx, len);
adamc@278: 
adamc@278:   s = ctx->heap_front;
adamc@278: 
adamc@278:   strcpy(s, s1);
adamc@278:   ctx->heap_front += len;
adamc@278: 
adamc@278:   return s;
adamc@278: }
adamc@280: 
adamc@280: 
adamc@311: char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281:   int len;
adamc@281:   char *r;
adamc@281: 
adamc@311:   uw_check_heap(ctx, INTS_MAX + 6);
adamc@281:   r = ctx->heap_front;
adamc@281:   sprintf(r, "%lld::int8%n", n, &len);
adamc@281:   ctx->heap_front += len+1;
adamc@281:   return r;
adamc@281: }
adamc@281: 
adamc@311: char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281:   int len;
adamc@281:   char *r;
adamc@281: 
adamc@311:   uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@281:   r = ctx->heap_front;
adamc@281:   sprintf(r, "%g::float8%n", n, &len);
adamc@281:   ctx->heap_front += len+1;
adamc@281:   return r;
adamc@281: }
adamc@281: 
adamc@281: 
adamc@311: uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280:   char *r, *s2;
adamc@280: 
adamc@311:   uw_check_heap(ctx, strlen(s) * 2 + 10);
adamc@280: 
adamc@280:   r = s2 = ctx->heap_front;
adamc@280:   *s2++ = 'E';
adamc@280:   *s2++ = '\'';
adamc@280: 
adamc@280:   for (; *s; s++) {
adamc@280:     char c = *s;
adamc@280: 
adamc@280:     switch (c) {
adamc@280:     case '\'':
adamc@280:       strcpy(s2, "\\'");
adamc@280:       s2 += 2;
adamc@280:       break;
adamc@280:     case '\\':
adamc@280:       strcpy(s2, "\\\\");
adamc@280:       s2 += 2;
adamc@280:       break;
adamc@280:     default:
adamc@280:       if (isprint(c))
adamc@280:         *s2++ = c;
adamc@280:       else {
adamc@280:         sprintf(s2, "\\%3o", c);
adamc@280:         s2 += 4;
adamc@280:       }
adamc@280:     }
adamc@280:   }
adamc@280: 
adamc@281:   strcpy(s2, "'::text");
adamc@281:   ctx->heap_front = s2 + 8;
adamc@280:   return r;
adamc@280: }
adamc@281: 
adamc@311: char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311:   if (b == uw_Basis_False)
adamc@281:     return "FALSE";
adamc@281:   else
adamc@281:     return "TRUE";
adamc@281: }
adamc@282: 
adamc@439: char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439:   size_t len;
adamc@439:   char *r;
adamc@439:   struct tm stm;
adamc@439: 
adamc@439:   if (localtime_r(&t, &stm)) {
adamc@439:     uw_check_heap(ctx, TIMES_MAX);
adamc@439:     r = ctx->heap_front;
adamc@439:     len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@439:     ctx->heap_front += len+1;
adamc@439:     return r;
adamc@439:   } else
adamc@439:     return "<Invalid time>";
adamc@439: }
adamc@439: 
adamc@311: char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311:   static uw_Basis_int true = 1;
adamc@311:   static uw_Basis_int false = 0;
adamc@282: 
adamc@311:   if (b == uw_Basis_False)
adamc@282:     return (char *)&false;
adamc@282:   else
adamc@282:     return (char *)&true;
adamc@282: }
adamc@284: 
adamc@311: uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284:   int len;
adamc@284:   char *r;
adamc@284: 
adamc@311:   uw_check_heap(ctx, INTS_MAX);
adamc@284:   r = ctx->heap_front;
adamc@284:   sprintf(r, "%lld%n", n, &len);
adamc@284:   ctx->heap_front += len+1;
adamc@284:   return r;
adamc@284: }
adamc@285: 
adamc@311: uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285:   int len;
adamc@285:   char *r;
adamc@285: 
adamc@311:   uw_check_heap(ctx, FLOATS_MAX);
adamc@285:   r = ctx->heap_front;
adamc@285:   sprintf(r, "%g%n", n, &len);
adamc@285:   ctx->heap_front += len+1;
adamc@285:   return r;
adamc@285: }
adamc@285: 
adamc@311: uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311:   if (b == uw_Basis_False)
adamc@285:     return "False";
adamc@285:   else
adamc@285:     return "True";
adamc@285: }
adamc@288: 
adamc@436: uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436:   size_t len;
adamc@436:   char *r;
adamc@436:   struct tm stm;
adamc@436: 
adamc@436:   if (localtime_r(&t, &stm)) {
adamc@436:     uw_check_heap(ctx, TIMES_MAX);
adamc@436:     r = ctx->heap_front;
adamc@436:     len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@436:     ctx->heap_front += len+1;
adamc@436:     return r;
adamc@436:   } else
adamc@436:     return "<Invalid time>";
adamc@436: }
adamc@288: 
adamc@311: uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288:   char *endptr;
adamc@311:   uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288: 
adamc@288:   if (*s != '\0' && *endptr == '\0') {
adamc@311:     uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288:     *r = n;
adamc@288:     return r;
adamc@288:   } else
adamc@288:     return NULL;
adamc@288: }
adamc@289: 
adamc@311: uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289:   char *endptr;
adamc@311:   uw_Basis_float n = strtod(s, &endptr);
adamc@289: 
adamc@289:   if (*s != '\0' && *endptr == '\0') {
adamc@311:     uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289:     *r = n;
adamc@289:     return r;
adamc@289:   } else
adamc@289:     return NULL;
adamc@289: }
adamc@289: 
adamc@311: uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311:   static uw_Basis_bool true = uw_Basis_True;
adamc@311:   static uw_Basis_bool false = uw_Basis_False;
adamc@289: 
adamc@289:   if (!strcasecmp (s, "True"))
adamc@289:     return &true;
adamc@289:   else if (!strcasecmp (s, "False"))
adamc@289:     return &false;
adamc@289:   else
adamc@289:     return NULL;
adamc@289: }
adamc@292: 
adamc@436: uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438:   char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@436:   struct tm stm;
adamc@436: 
adamc@439:   if (dot) {
adamc@439:     *dot = 0;
adamc@439:     if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439:       *dot = '.';
adamc@439:       uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439:       *r = mktime(&stm);
adamc@439:       return r;
adamc@439:     }
adamc@439:     else {
adamc@439:       *dot = '.';
adamc@439:       return NULL;
adamc@439:     }
adamc@436:   }
adamc@439:   else {
adamc@439:     if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439:       uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439:       *r = mktime(&stm);
adamc@439:       return r;
adamc@439:     }
adamc@439:     else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439:       uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439:       *r = mktime(&stm);
adamc@439:       return r;
adamc@439:     }
adamc@439:     else
adamc@439:       return NULL;
adamc@439:   }
adamc@436: }
adamc@436: 
adamc@311: uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292:   char *endptr;
adamc@311:   uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292: 
adamc@292:   if (*s != '\0' && *endptr == '\0')
adamc@292:     return n;
adamc@292:   else
adamc@311:     uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292: }
adamc@293: 
adamc@311: uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293:   char *endptr;
adamc@311:   uw_Basis_float n = strtod(s, &endptr);
adamc@293: 
adamc@293:   if (*s != '\0' && *endptr == '\0')
adamc@293:     return n;
adamc@293:   else
adamc@311:     uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293: }
adamc@293: 
adamc@311: uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296:   if (!strcasecmp(s, "T") || !strcasecmp (s, "True"))
adamc@311:     return uw_Basis_True;
adamc@296:   else if (!strcasecmp(s, "F") || !strcasecmp (s, "False"))
adamc@311:     return uw_Basis_False;
adamc@293:   else
adamc@311:     uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293: }
adamc@436: 
adamc@436: uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438:   char *dot = strchr(s, '.'), *end = strchr(s, 0);
adamc@436:   struct tm stm = {};
adamc@436: 
adamc@438:   if (dot) {
adamc@438:     *dot = 0;
adamc@438:     if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438:       *dot = '.';
adamc@438:       return mktime(&stm);
adamc@438:     }
adamc@438:     else {
adamc@438:       *dot = '.';
adamc@438:       uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438:     }
adamc@438:   }
adamc@438:   else {
adamc@439:     if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439:       return mktime(&stm);
adamc@439:     else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438:       return mktime(&stm);
adamc@438:     else
adamc@438:       uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438:   }
adamc@436: }
adamc@457: 
adamc@457: uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adamc@457:   int len = strlen(h);
adamc@457:   char *s = ctx->headers, *p;
adamc@457: 
adamc@457:   while (p = strchr(s, ':')) {
adamc@457:     if (p - s == len && !strncasecmp(s, h, len)) {
adamc@457:       s = p + 2;
adamc@457:       if (p = strchr(s, '\r')) {
adamc@457:         uw_Basis_string ret = uw_malloc(ctx, p - s + 1);
adamc@457:         memcpy(ret, s, p - s);
adamc@457:         ret[p - s] = 0;
adamc@457:         return ret;
adamc@457:       }
adamc@457:       else
adamc@457:         return NULL;
adamc@457:     } else {
adamc@457:       if (s = strchr(s, '\n'))
adamc@457:         ++s;
adamc@457:       else
adamc@457:         return NULL;
adamc@457:     }
adamc@457:   }
adamc@457:         
adamc@457: }