From 906d543b0e2cb16421702ebe8b878b21415c16a0 Mon Sep 17 00:00:00 2001 From: Brad Anderson Date: Fri, 20 Aug 2010 10:15:57 -0400 Subject: build couchjs with scons --- apps/couch/c_src/couch_js/SConscript | 53 +++ apps/couch/c_src/couch_js/http.c | 684 +++++++++++++++++++++++++++++++++++ apps/couch/c_src/couch_js/http.h | 18 + apps/couch/c_src/couch_js/main.c | 345 ++++++++++++++++++ apps/couch/c_src/couch_js/utf8.c | 293 +++++++++++++++ apps/couch/c_src/couch_js/utf8.h | 19 + 6 files changed, 1412 insertions(+) create mode 100644 apps/couch/c_src/couch_js/SConscript create mode 100644 apps/couch/c_src/couch_js/http.c create mode 100644 apps/couch/c_src/couch_js/http.h create mode 100644 apps/couch/c_src/couch_js/main.c create mode 100644 apps/couch/c_src/couch_js/utf8.c create mode 100644 apps/couch/c_src/couch_js/utf8.h (limited to 'apps/couch/c_src') diff --git a/apps/couch/c_src/couch_js/SConscript b/apps/couch/c_src/couch_js/SConscript new file mode 100644 index 00000000..b459ee94 --- /dev/null +++ b/apps/couch/c_src/couch_js/SConscript @@ -0,0 +1,53 @@ +# Copyright (c) 2010 Cloudant +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +def require_lib(name): + if not conf.CheckLib(name): + print 'Could not find required library', name + Exit(1) + +env = Environment(CCFLAGS='-g -O2 -DXP_UNIX') +if not env.GetOption('clean'): + conf = Configure(env, config_h='config.h') + + require_lib('m') + require_lib('pthread') + require_lib('curl') + + ## check for SpiderMonkey development header + if conf.CheckHeader('js/jsapi.h'): + jsapi = 'js/jsapi.h' + elif conf.CheckHeader('mozjs/jsapi.h'): + jsapi = 'mozjs/jsapi.h' + elif conf.CheckHeader('jsapi.h'): + jsapi = 'jsapi.h' + else: + print 'Could not find jsapi.h.', \ + 'Are Mozilla SpiderMonkey headers installed?' + Exit(1) + + ## check for SpiderMonkey library as libjs or libmozjs + if not conf.CheckLibWithHeader('mozjs', jsapi, 'c', autoadd=1): + if not conf.CheckLibWithHeader('js', jsapi, 'c', autoadd=1): + print 'Could not find JS library.', \ + 'Is Mozilla SpiderMonkey installed?' + Exit(1) + + ## SpiderMonkey 1.8 has this callback we use for memory management + if conf.CheckDeclaration('JS_SetOperationCallback', '#include <%s>' % jsapi): + conf.Define('USE_JS_SETOPCB') + + env = conf.Finish() + +env.Program('couchjs', ['main.c', 'http.c', 'utf8.c']) diff --git a/apps/couch/c_src/couch_js/http.c b/apps/couch/c_src/couch_js/http.c new file mode 100644 index 00000000..b781f0ef --- /dev/null +++ b/apps/couch/c_src/couch_js/http.c @@ -0,0 +1,684 @@ +// Licensed under the Apache License, Version 2.0 (the "License"); you may not +// use this file except in compliance with the License. You may obtain a copy of +// the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations under +// the License. + +#include +#include +#include + +#include "config.h" +#ifdef HAVE_JS_JSAPI_H +#include +#elif HAVE_MOZJS_JSAPI_H +#include +#else +#include +#endif + +#include + +#include "utf8.h" + +#ifdef XP_WIN +// Map some of the string function names to things which exist on Windows +#define strcasecmp _strcmpi +#define strncasecmp _strnicmp +#define snprintf _snprintf +#endif + +typedef struct curl_slist CurlHeaders; + +typedef struct { + int method; + char* url; + CurlHeaders* req_headers; + jsint last_status; +} HTTPData; + +char* METHODS[] = {"GET", "HEAD", "POST", "PUT", "DELETE", "COPY", NULL}; + +#define GET 0 +#define HEAD 1 +#define POST 2 +#define PUT 3 +#define DELETE 4 +#define COPY 5 + +static JSBool +go(JSContext* cx, JSObject* obj, HTTPData* http, char* body, size_t blen); + +static JSString* +str_from_binary(JSContext* cx, char* data, size_t length); + +static JSBool +constructor(JSContext* cx, JSObject* obj, uintN argc, jsval* argv, jsval* rval) +{ + HTTPData* http = NULL; + JSBool ret = JS_FALSE; + + http = (HTTPData*) malloc(sizeof(HTTPData)); + if(!http) + { + JS_ReportError(cx, "Failed to create CouchHTTP instance."); + goto error; + } + + http->method = -1; + http->url = NULL; + http->req_headers = NULL; + http->last_status = -1; + + if(!JS_SetPrivate(cx, obj, http)) + { + JS_ReportError(cx, "Failed to set private CouchHTTP data."); + goto error; + } + + ret = JS_TRUE; + goto success; + +error: + if(http) free(http); + +success: + return ret; +} + +static void +destructor(JSContext* cx, JSObject* obj) +{ + HTTPData* http = (HTTPData*) JS_GetPrivate(cx, obj); + if(!http) + { + fprintf(stderr, "Unable to destroy invalid CouchHTTP instance.\n"); + } + else + { + if(http->url) free(http->url); + if(http->req_headers) curl_slist_free_all(http->req_headers); + free(http); + } +} + +static JSBool +open(JSContext* cx, JSObject* obj, uintN argc, jsval* argv, jsval* rval) +{ + HTTPData* http = (HTTPData*) JS_GetPrivate(cx, obj); + char* method = NULL; + char* url = NULL; + JSBool ret = JS_FALSE; + int methid; + + if(!http) + { + JS_ReportError(cx, "Invalid CouchHTTP instance."); + goto done; + } + + if(argv[0] == JSVAL_VOID) + { + JS_ReportError(cx, "You must specify a method."); + goto done; + } + + method = enc_string(cx, argv[0], NULL); + if(!method) + { + JS_ReportError(cx, "Failed to encode method."); + goto done; + } + + for(methid = 0; METHODS[methid] != NULL; methid++) + { + if(strcasecmp(METHODS[methid], method) == 0) break; + } + + if(methid > COPY) + { + JS_ReportError(cx, "Invalid method specified."); + goto done; + } + + http->method = methid; + + if(argv[1] == JSVAL_VOID) + { + JS_ReportError(cx, "You must specify a URL."); + goto done; + } + + if(http->url) + { + free(http->url); + http->url = NULL; + } + + http->url = enc_string(cx, argv[1], NULL); + if(!http->url) + { + JS_ReportError(cx, "Failed to encode URL."); + goto done; + } + + if(argv[2] != JSVAL_VOID && argv[2] != JSVAL_FALSE) + { + JS_ReportError(cx, "Synchronous flag must be false if specified."); + goto done; + } + + if(http->req_headers) + { + curl_slist_free_all(http->req_headers); + http->req_headers = NULL; + } + + // Disable Expect: 100-continue + http->req_headers = curl_slist_append(http->req_headers, "Expect:"); + + ret = JS_TRUE; + +done: + if(method) free(method); + return ret; +} + +static JSBool +setheader(JSContext* cx, JSObject* obj, uintN argc, jsval* argv, jsval* rval) +{ + HTTPData* http = (HTTPData*) JS_GetPrivate(cx, obj); + char* keystr = NULL; + char* valstr = NULL; + char* hdrbuf = NULL; + size_t hdrlen = -1; + JSBool ret = JS_FALSE; + + if(!http) + { + JS_ReportError(cx, "Invalid CouchHTTP instance."); + goto done; + } + + if(argv[0] == JSVAL_VOID) + { + JS_ReportError(cx, "You must speciy a header name."); + goto done; + } + + keystr = enc_string(cx, argv[0], NULL); + if(!keystr) + { + JS_ReportError(cx, "Failed to encode header name."); + goto done; + } + + if(argv[1] == JSVAL_VOID) + { + JS_ReportError(cx, "You must specify a header value."); + goto done; + } + + valstr = enc_string(cx, argv[1], NULL); + if(!valstr) + { + JS_ReportError(cx, "Failed to encode header value."); + goto done; + } + + hdrlen = strlen(keystr) + strlen(valstr) + 3; + hdrbuf = (char*) malloc(hdrlen * sizeof(char)); + if(!hdrbuf) + { + JS_ReportError(cx, "Failed to allocate header buffer."); + goto done; + } + + snprintf(hdrbuf, hdrlen, "%s: %s", keystr, valstr); + http->req_headers = curl_slist_append(http->req_headers, hdrbuf); + + ret = JS_TRUE; + +done: + if(keystr) free(keystr); + if(valstr) free(valstr); + if(hdrbuf) free(hdrbuf); + + return ret; +} + +static JSBool +sendreq(JSContext* cx, JSObject* obj, uintN argc, jsval* argv, jsval* rval) +{ + HTTPData* http = (HTTPData*) JS_GetPrivate(cx, obj); + char* body = NULL; + size_t bodylen = 0; + JSBool ret = JS_FALSE; + + if(!http) + { + JS_ReportError(cx, "Invalid CouchHTTP instance."); + goto done; + } + + if(argv[0] != JSVAL_VOID && argv[0] != JS_GetEmptyStringValue(cx)) + { + body = enc_string(cx, argv[0], &bodylen); + if(!body) + { + JS_ReportError(cx, "Failed to encode body."); + goto done; + } + } + + ret = go(cx, obj, http, body, bodylen); + +done: + if(body) free(body); + return ret; +} + +static JSBool +status(JSContext* cx, JSObject* obj, jsval idval, jsval* vp) +{ + HTTPData* http = (HTTPData*) JS_GetPrivate(cx, obj); + + if(!http) + { + JS_ReportError(cx, "Invalid CouchHTTP instance."); + return JS_FALSE; + } + + if(INT_FITS_IN_JSVAL(http->last_status)) + { + *vp = INT_TO_JSVAL(http->last_status); + return JS_TRUE; + } + else + { + JS_ReportError(cx, "INTERNAL: Invalid last_status"); + return JS_FALSE; + } +} + +JSClass CouchHTTPClass = { + "CouchHTTP", + JSCLASS_HAS_PRIVATE + | JSCLASS_CONSTRUCT_PROTOTYPE + | JSCLASS_HAS_RESERVED_SLOTS(2), + JS_PropertyStub, + JS_PropertyStub, + JS_PropertyStub, + JS_PropertyStub, + JS_EnumerateStub, + JS_ResolveStub, + JS_ConvertStub, + destructor, + JSCLASS_NO_OPTIONAL_MEMBERS +}; + +JSPropertySpec CouchHTTPProperties[] = { + {"status", 0, JSPROP_READONLY, status, NULL}, + {0, 0, 0, 0, 0} +}; + +JSFunctionSpec CouchHTTPFunctions[] = { + {"_open", open, 3, 0, 0}, + {"_setRequestHeader", setheader, 2, 0, 0}, + {"_send", sendreq, 1, 0, 0}, + {0, 0, 0, 0, 0} +}; + +JSObject* +install_http(JSContext* cx, JSObject* glbl) +{ + JSObject* klass = NULL; + HTTPData* http = NULL; + + klass = JS_InitClass( + cx, + glbl, + NULL, + &CouchHTTPClass, + constructor, + 0, + CouchHTTPProperties, + CouchHTTPFunctions, + NULL, + NULL + ); + + if(!klass) + { + fprintf(stderr, "Failed to initialize CouchHTTP class.\n"); + return NULL; + } + + return klass; +} + + +// Curl Helpers + +typedef struct { + HTTPData* http; + JSContext* cx; + JSObject* resp_headers; + char* sendbuf; + size_t sendlen; + size_t sent; + char* recvbuf; + size_t recvlen; + size_t read; +} CurlState; + +/* + * I really hate doing this but this doesn't have to be + * uber awesome, it just has to work. + */ +CURL* HTTP_HANDLE = NULL; +char ERRBUF[CURL_ERROR_SIZE]; + +static size_t send_body(void *ptr, size_t size, size_t nmem, void *data); +static int seek_body(void *ptr, curl_off_t offset, int origin); +static size_t recv_body(void *ptr, size_t size, size_t nmem, void *data); +static size_t recv_header(void *ptr, size_t size, size_t nmem, void *data); + +static JSBool +go(JSContext* cx, JSObject* obj, HTTPData* http, char* body, size_t bodylen) +{ + CurlState state; + JSString* jsbody; + JSBool ret = JS_FALSE; + jsval tmp; + + state.cx = cx; + state.http = http; + + state.sendbuf = body; + state.sendlen = bodylen; + state.sent = 0; + + state.recvbuf = NULL; + state.recvlen = 0; + state.read = 0; + + if(HTTP_HANDLE == NULL) + { + HTTP_HANDLE = curl_easy_init(); + curl_easy_setopt(HTTP_HANDLE, CURLOPT_READFUNCTION, send_body); + curl_easy_setopt(HTTP_HANDLE, CURLOPT_SEEKFUNCTION, + (curl_seek_callback) seek_body); + curl_easy_setopt(HTTP_HANDLE, CURLOPT_HEADERFUNCTION, recv_header); + curl_easy_setopt(HTTP_HANDLE, CURLOPT_WRITEFUNCTION, recv_body); + curl_easy_setopt(HTTP_HANDLE, CURLOPT_NOPROGRESS, 1); + curl_easy_setopt(HTTP_HANDLE, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4); + curl_easy_setopt(HTTP_HANDLE, CURLOPT_ERRORBUFFER, ERRBUF); + curl_easy_setopt(HTTP_HANDLE, CURLOPT_COOKIEFILE, ""); + curl_easy_setopt(HTTP_HANDLE, CURLOPT_USERAGENT, + "CouchHTTP Client - Relax"); + } + + if(!HTTP_HANDLE) + { + JS_ReportError(cx, "Failed to initialize cURL handle."); + goto done; + } + + if(http->method < 0 || http->method > COPY) + { + JS_ReportError(cx, "INTERNAL: Unknown method."); + goto done; + } + + curl_easy_setopt(HTTP_HANDLE, CURLOPT_CUSTOMREQUEST, METHODS[http->method]); + curl_easy_setopt(HTTP_HANDLE, CURLOPT_NOBODY, 0); + curl_easy_setopt(HTTP_HANDLE, CURLOPT_FOLLOWLOCATION, 1); + curl_easy_setopt(HTTP_HANDLE, CURLOPT_UPLOAD, 0); + + if(http->method == HEAD) + { + curl_easy_setopt(HTTP_HANDLE, CURLOPT_NOBODY, 1); + curl_easy_setopt(HTTP_HANDLE, CURLOPT_FOLLOWLOCATION, 0); + } + else if(http->method == POST || http->method == PUT) + { + curl_easy_setopt(HTTP_HANDLE, CURLOPT_UPLOAD, 1); + curl_easy_setopt(HTTP_HANDLE, CURLOPT_FOLLOWLOCATION, 0); + } + + if(body && bodylen) + { + curl_easy_setopt(HTTP_HANDLE, CURLOPT_INFILESIZE, bodylen); + } + else + { + curl_easy_setopt(HTTP_HANDLE, CURLOPT_INFILESIZE, 0); + } + + //curl_easy_setopt(HTTP_HANDLE, CURLOPT_VERBOSE, 1); + + curl_easy_setopt(HTTP_HANDLE, CURLOPT_URL, http->url); + curl_easy_setopt(HTTP_HANDLE, CURLOPT_HTTPHEADER, http->req_headers); + curl_easy_setopt(HTTP_HANDLE, CURLOPT_READDATA, &state); + curl_easy_setopt(HTTP_HANDLE, CURLOPT_SEEKDATA, &state); + curl_easy_setopt(HTTP_HANDLE, CURLOPT_WRITEHEADER, &state); + curl_easy_setopt(HTTP_HANDLE, CURLOPT_WRITEDATA, &state); + + if(curl_easy_perform(HTTP_HANDLE) != 0) + { + JS_ReportError(cx, "Failed to execute HTTP request: %s", ERRBUF); + goto done; + } + + if(!state.resp_headers) + { + JS_ReportError(cx, "Failed to recieve HTTP headers."); + goto done; + } + + tmp = OBJECT_TO_JSVAL(state.resp_headers); + if(!JS_DefineProperty( + cx, + obj, + "_headers", + tmp, + NULL, + NULL, + JSPROP_READONLY + )) + { + JS_ReportError(cx, "INTERNAL: Failed to set response headers."); + goto done; + } + + if(state.recvbuf) // Is good enough? + { + state.recvbuf[state.read] = '\0'; + jsbody = dec_string(cx, state.recvbuf, state.read+1); + if(!jsbody) + { + // If we can't decode the body as UTF-8 we forcefully + // convert it to a string by just forcing each byte + // to a jschar. + jsbody = str_from_binary(cx, state.recvbuf, state.read); + if(!jsbody) { + if(!JS_IsExceptionPending(cx)) { + JS_ReportError(cx, "INTERNAL: Failed to decode body."); + } + goto done; + } + } + tmp = STRING_TO_JSVAL(jsbody); + } + else + { + tmp = JS_GetEmptyStringValue(cx); + } + + if(!JS_DefineProperty( + cx, + obj, + "responseText", + tmp, + NULL, + NULL, + JSPROP_READONLY + )) + { + JS_ReportError(cx, "INTERNAL: Failed to set responseText."); + goto done; + } + + ret = JS_TRUE; + +done: + if(state.recvbuf) JS_free(cx, state.recvbuf); + return ret; +} + +static size_t +send_body(void *ptr, size_t size, size_t nmem, void *data) +{ + CurlState* state = (CurlState*) data; + size_t length = size * nmem; + size_t towrite = state->sendlen - state->sent; + if(towrite == 0) + { + return 0; + } + + if(length < towrite) towrite = length; + + //fprintf(stderr, "%lu %lu %lu %lu\n", state->bodyused, state->bodyread, length, towrite); + + memcpy(ptr, state->sendbuf + state->sent, towrite); + state->sent += towrite; + + return towrite; +} + +static int +seek_body(void* ptr, curl_off_t offset, int origin) +{ + CurlState* state = (CurlState*) ptr; + if(origin != SEEK_SET) return -1; + + state->sent = (size_t) offset; + return (int) state->sent; +} + +static size_t +recv_header(void *ptr, size_t size, size_t nmem, void *data) +{ + CurlState* state = (CurlState*) data; + char code[4]; + char* header = (char*) ptr; + size_t length = size * nmem; + size_t index = 0; + JSString* hdr = NULL; + jsuint hdrlen; + jsval hdrval; + + if(length > 7 && strncasecmp(header, "HTTP/1.", 7) == 0) + { + if(length < 12) + { + return CURLE_WRITE_ERROR; + } + + memcpy(code, header+9, 3*sizeof(char)); + code[3] = '\0'; + state->http->last_status = atoi(code); + + state->resp_headers = JS_NewArrayObject(state->cx, 0, NULL); + if(!state->resp_headers) + { + return CURLE_WRITE_ERROR; + } + + return length; + } + + // We get a notice at the \r\n\r\n after headers. + if(length <= 2) + { + return length; + } + + // Append the new header to our array. + hdr = dec_string(state->cx, header, length); + if(!hdr) + { + return CURLE_WRITE_ERROR; + } + + if(!JS_GetArrayLength(state->cx, state->resp_headers, &hdrlen)) + { + return CURLE_WRITE_ERROR; + } + + hdrval = STRING_TO_JSVAL(hdr); + if(!JS_SetElement(state->cx, state->resp_headers, hdrlen, &hdrval)) + { + return CURLE_WRITE_ERROR; + } + + return length; +} + +static size_t +recv_body(void *ptr, size_t size, size_t nmem, void *data) +{ + CurlState* state = (CurlState*) data; + size_t length = size * nmem; + char* tmp = NULL; + + if(!state->recvbuf) + { + state->recvlen = 4096; + state->read = 0; + state->recvbuf = JS_malloc(state->cx, state->recvlen); + } + + if(!state->recvbuf) + { + return CURLE_WRITE_ERROR; + } + + // +1 so we can add '\0' back up in the go function. + while(length+1 > state->recvlen - state->read) state->recvlen *= 2; + tmp = JS_realloc(state->cx, state->recvbuf, state->recvlen); + if(!tmp) return CURLE_WRITE_ERROR; + state->recvbuf = tmp; + + memcpy(state->recvbuf + state->read, ptr, length); + state->read += length; + return length; +} + +JSString* +str_from_binary(JSContext* cx, char* data, size_t length) +{ + jschar* conv = (jschar*) JS_malloc(cx, length * sizeof(jschar)); + JSString* ret = NULL; + size_t i; + + if(!conv) return NULL; + + for(i = 0; i < length; i++) + { + conv[i] = (jschar) data[i]; + } + + ret = JS_NewUCString(cx, conv, length); + if(!ret) JS_free(cx, conv); + + return ret; +} diff --git a/apps/couch/c_src/couch_js/http.h b/apps/couch/c_src/couch_js/http.h new file mode 100644 index 00000000..b5f8c70f --- /dev/null +++ b/apps/couch/c_src/couch_js/http.h @@ -0,0 +1,18 @@ +// Licensed under the Apache License, Version 2.0 (the "License"); you may not +// use this file except in compliance with the License. You may obtain a copy of +// the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations under +// the License. + +#ifndef COUCH_JS_HTTP_H +#define COUCH_JS_HTTP_H + +JSObject* install_http(JSContext* cx, JSObject* global); + +#endif \ No newline at end of file diff --git a/apps/couch/c_src/couch_js/main.c b/apps/couch/c_src/couch_js/main.c new file mode 100644 index 00000000..25acaf55 --- /dev/null +++ b/apps/couch/c_src/couch_js/main.c @@ -0,0 +1,345 @@ +// Licensed under the Apache License, Version 2.0 (the "License"); you may not +// use this file except in compliance with the License. You may obtain a copy of +// the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations under +// the License. + +#include +#include +#include + +#include "config.h" +#ifdef HAVE_JS_JSAPI_H +#include +#elif HAVE_MOZJS_JSAPI_H +#include +#else +#include +#endif + +#include "utf8.h" +#include "http.h" + +int gExitCode = 0; + +#ifdef JS_THREADSAFE +#define SETUP_REQUEST(cx) \ + JS_SetContextThread(cx); \ + JS_BeginRequest(cx); +#define FINISH_REQUEST(cx) \ + JS_EndRequest(cx); \ + JS_ClearContextThread(cx); +#else +#define SETUP_REQUEST(cx) +#define FINISH_REQUEST(cx) +#endif + +static JSBool +evalcx(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) +{ + JSString *str; + JSObject *sandbox; + JSContext *subcx; + const jschar *src; + size_t srclen; + JSBool ret = JS_FALSE; + jsval v; + + sandbox = NULL; + if(!JS_ConvertArguments(cx, argc, argv, "S / o", &str, &sandbox)) + { + return JS_FALSE; + } + + subcx = JS_NewContext(JS_GetRuntime(cx), 8L * 1024L); + if(!subcx) + { + JS_ReportOutOfMemory(cx); + return JS_FALSE; + } + + SETUP_REQUEST(subcx); + + src = JS_GetStringChars(str); + srclen = JS_GetStringLength(str); + + if(!sandbox) + { + sandbox = JS_NewObject(subcx, NULL, NULL, NULL); + if(!sandbox || !JS_InitStandardClasses(subcx, sandbox)) goto done; + } + + if(srclen == 0) + { + *rval = OBJECT_TO_JSVAL(sandbox); + } + else + { + JS_EvaluateUCScript(subcx, sandbox, src, srclen, NULL, 0, rval); + } + + ret = JS_TRUE; + +done: + FINISH_REQUEST(subcx); + JS_DestroyContext(subcx); + return ret; +} + +static JSBool +gc(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) +{ + JS_GC(cx); + return JS_TRUE; +} + +static JSBool +print(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) +{ + uintN i; + char *bytes; + + for(i = 0; i < argc; i++) + { + bytes = enc_string(cx, argv[i], NULL); + if(!bytes) return JS_FALSE; + + fprintf(stdout, "%s%s", i ? " " : "", bytes); + JS_free(cx, bytes); + } + + fputc('\n', stdout); + fflush(stdout); + return JS_TRUE; +} + +static JSBool +quit(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) +{ + JS_ConvertArguments(cx, argc, argv, "/ i", &gExitCode); + return JS_FALSE; +} + +static char* +readfp(JSContext* cx, FILE* fp, size_t* buflen) +{ + char* bytes = NULL; + char* tmp = NULL; + size_t used = 0; + size_t byteslen = 256; + size_t readlen = 0; + + bytes = JS_malloc(cx, byteslen); + if(bytes == NULL) return NULL; + + while((readlen = js_fgets(bytes+used, byteslen-used, stdin)) > 0) + { + used += readlen; + + if(bytes[used-1] == '\n') + { + bytes[used-1] = '\0'; + break; + } + + // Double our buffer and read more. + byteslen *= 2; + tmp = JS_realloc(cx, bytes, byteslen); + if(!tmp) + { + JS_free(cx, bytes); + return NULL; + } + bytes = tmp; + } + + *buflen = used; + return bytes; +} + +static JSBool +readline(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) { + jschar *chars; + JSString *str; + char* bytes; + char* tmp; + size_t byteslen; + + /* GC Occasionally */ + JS_MaybeGC(cx); + + bytes = readfp(cx, stdin, &byteslen); + if(!bytes) return JS_FALSE; + + /* Treat the empty string specially */ + if(byteslen == 0) + { + *rval = JS_GetEmptyStringValue(cx); + JS_free(cx, bytes); + return JS_TRUE; + } + + /* Shrink the buffer to the real size */ + tmp = JS_realloc(cx, bytes, byteslen); + if(!tmp) + { + JS_free(cx, bytes); + return JS_FALSE; + } + bytes = tmp; + + str = dec_string(cx, bytes, byteslen); + JS_free(cx, bytes); + + if(!str) return JS_FALSE; + + *rval = STRING_TO_JSVAL(str); + + return JS_TRUE; +} + +static JSBool +seal(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval) { + JSObject *target; + JSBool deep = JS_FALSE; + + if (!JS_ConvertArguments(cx, argc, argv, "o/b", &target, &deep)) + return JS_FALSE; + if (!target) + return JS_TRUE; + return JS_SealObject(cx, target, deep); +} + +static void +execute_script(JSContext *cx, JSObject *obj, const char *filename) { + FILE *file; + JSScript *script; + jsval result; + + if(!filename || strcmp(filename, "-") == 0) + { + file = stdin; + } + else + { + file = fopen(filename, "r"); + if (!file) + { + fprintf(stderr, "could not open script file %s\n", filename); + gExitCode = 1; + return; + } + } + + script = JS_CompileFileHandle(cx, obj, filename, file); + if(script) + { + JS_ExecuteScript(cx, obj, script, &result); + JS_DestroyScript(cx, script); + } +} + +static void +printerror(JSContext *cx, const char *mesg, JSErrorReport *report) +{ + if(!report || !JSREPORT_IS_WARNING(report->flags)) + { + fprintf(stderr, "%s\n", mesg); + } +} + +static JSFunctionSpec global_functions[] = { + {"evalcx", evalcx, 0, 0, 0}, + {"gc", gc, 0, 0, 0}, + {"print", print, 0, 0, 0}, + {"quit", quit, 0, 0, 0}, + {"readline", readline, 0, 0, 0}, + {"seal", seal, 0, 0, 0}, + {0, 0, 0, 0, 0} +}; + +static JSClass global_class = { + "GlobalClass", + JSCLASS_GLOBAL_FLAGS, + JS_PropertyStub, + JS_PropertyStub, + JS_PropertyStub, + JS_PropertyStub, + JS_EnumerateStub, + JS_ResolveStub, + JS_ConvertStub, + JS_FinalizeStub, + JSCLASS_NO_OPTIONAL_MEMBERS +}; + +int +main(int argc, const char * argv[]) +{ + JSRuntime* rt = NULL; + JSContext* cx = NULL; + JSObject* global = NULL; + JSFunctionSpec* sp = NULL; + int i = 0; + + rt = JS_NewRuntime(64L * 1024L * 1024L); + if (!rt) return 1; + + cx = JS_NewContext(rt, 8L * 1024L); + if (!cx) return 1; + + JS_SetErrorReporter(cx, printerror); + JS_ToggleOptions(cx, JSOPTION_XML); + + SETUP_REQUEST(cx); + + global = JS_NewObject(cx, &global_class, NULL, NULL); + if (!global) return 1; + if (!JS_InitStandardClasses(cx, global)) return 1; + + for(sp = global_functions; sp->name != NULL; sp++) + { + if(!JS_DefineFunction(cx, global, + sp->name, sp->call, sp->nargs, sp->flags)) + { + fprintf(stderr, "Failed to create function: %s\n", sp->name); + return 1; + } + } + + if(!install_http(cx, global)) + { + return 1; + } + + JS_SetGlobalObject(cx, global); + + if(argc > 2) + { + fprintf(stderr, "incorrect number of arguments\n\n"); + fprintf(stderr, "usage: %s \n", argv[0]); + return 2; + } + + if(argc == 0) + { + execute_script(cx, global, NULL); + } + else + { + execute_script(cx, global, argv[1]); + } + + FINISH_REQUEST(cx); + + JS_DestroyContext(cx); + JS_DestroyRuntime(rt); + JS_ShutDown(); + + return gExitCode; +} diff --git a/apps/couch/c_src/couch_js/utf8.c b/apps/couch/c_src/couch_js/utf8.c new file mode 100644 index 00000000..57928ba9 --- /dev/null +++ b/apps/couch/c_src/couch_js/utf8.c @@ -0,0 +1,293 @@ +// Licensed under the Apache License, Version 2.0 (the "License"); you may not +// use this file except in compliance with the License. You may obtain a copy of +// the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations under +// the License. + +#include "config.h" +#ifdef HAVE_JS_JSAPI_H +#include +#elif HAVE_MOZJS_JSAPI_H +#include +#else +#include +#endif + +static int +enc_char(uint8 *utf8Buffer, uint32 ucs4Char) +{ + int utf8Length = 1; + + if (ucs4Char < 0x80) + { + *utf8Buffer = (uint8)ucs4Char; + } + else + { + int i; + uint32 a = ucs4Char >> 11; + utf8Length = 2; + while(a) + { + a >>= 5; + utf8Length++; + } + i = utf8Length; + while(--i) + { + utf8Buffer[i] = (uint8)((ucs4Char & 0x3F) | 0x80); + ucs4Char >>= 6; + } + *utf8Buffer = (uint8)(0x100 - (1 << (8-utf8Length)) + ucs4Char); + } + + return utf8Length; +} + +static JSBool +enc_charbuf(const jschar* src, size_t srclen, char* dst, size_t* dstlenp) +{ + size_t i; + size_t utf8Len; + size_t dstlen = *dstlenp; + size_t origDstlen = dstlen; + jschar c; + jschar c2; + uint32 v; + uint8 utf8buf[6]; + + if(!dst) + { + dstlen = origDstlen = (size_t) -1; + } + + while(srclen) + { + c = *src++; + srclen--; + + if((c >= 0xDC00) && (c <= 0xDFFF)) goto bad_surrogate; + + if(c < 0xD800 || c > 0xDBFF) + { + v = c; + } + else + { + if(srclen < 1) goto buffer_too_small; + c2 = *src++; + srclen--; + if ((c2 < 0xDC00) || (c2 > 0xDFFF)) + { + c = c2; + goto bad_surrogate; + } + v = ((c - 0xD800) << 10) + (c2 - 0xDC00) + 0x10000; + } + if(v < 0x0080) + { + /* no encoding necessary - performance hack */ + if(!dstlen) goto buffer_too_small; + if(dst) *dst++ = (char) v; + utf8Len = 1; + } + else + { + utf8Len = enc_char(utf8buf, v); + if(utf8Len > dstlen) goto buffer_too_small; + if(dst) + { + for (i = 0; i < utf8Len; i++) + { + *dst++ = (char) utf8buf[i]; + } + } + } + dstlen -= utf8Len; + } + + *dstlenp = (origDstlen - dstlen); + return JS_TRUE; + +bad_surrogate: + *dstlenp = (origDstlen - dstlen); + return JS_FALSE; + +buffer_too_small: + *dstlenp = (origDstlen - dstlen); + return JS_FALSE; +} + +char* +enc_string(JSContext* cx, jsval arg, size_t* buflen) +{ + JSString* str = NULL; + jschar* src = NULL; + char* bytes = NULL; + size_t srclen = 0; + size_t byteslen = 0; + + str = JS_ValueToString(cx, arg); + if(!str) goto error; + + src = JS_GetStringChars(str); + srclen = JS_GetStringLength(str); + + if(!enc_charbuf(src, srclen, NULL, &byteslen)) goto error; + + bytes = JS_malloc(cx, (byteslen) + 1); + bytes[byteslen] = 0; + + if(!enc_charbuf(src, srclen, bytes, &byteslen)) goto error; + + if(buflen) *buflen = byteslen; + goto success; + +error: + if(bytes != NULL) JS_free(cx, bytes); + bytes = NULL; + +success: + return bytes; +} + +static uint32 +dec_char(const uint8 *utf8Buffer, int utf8Length) +{ + uint32 ucs4Char; + uint32 minucs4Char; + + /* from Unicode 3.1, non-shortest form is illegal */ + static const uint32 minucs4Table[] = { + 0x00000080, 0x00000800, 0x0001000, 0x0020000, 0x0400000 + }; + + if (utf8Length == 1) + { + ucs4Char = *utf8Buffer; + } + else + { + ucs4Char = *utf8Buffer++ & ((1<<(7-utf8Length))-1); + minucs4Char = minucs4Table[utf8Length-2]; + while(--utf8Length) + { + ucs4Char = ucs4Char<<6 | (*utf8Buffer++ & 0x3F); + } + if(ucs4Char < minucs4Char || ucs4Char == 0xFFFE || ucs4Char == 0xFFFF) + { + ucs4Char = 0xFFFD; + } + } + + return ucs4Char; +} + +static JSBool +dec_charbuf(const char *src, size_t srclen, jschar *dst, size_t *dstlenp) +{ + uint32 v; + size_t offset = 0; + size_t j; + size_t n; + size_t dstlen = *dstlenp; + size_t origDstlen = dstlen; + + if(!dst) dstlen = origDstlen = (size_t) -1; + + while(srclen) + { + v = (uint8) *src; + n = 1; + + if(v & 0x80) + { + while(v & (0x80 >> n)) + { + n++; + } + + if(n > srclen) goto buffer_too_small; + if(n == 1 || n > 6) goto bad_character; + + for(j = 1; j < n; j++) + { + if((src[j] & 0xC0) != 0x80) goto bad_character; + } + + v = dec_char((const uint8 *) src, n); + if(v >= 0x10000) + { + v -= 0x10000; + + if(v > 0xFFFFF || dstlen < 2) + { + *dstlenp = (origDstlen - dstlen); + return JS_FALSE; + } + + if(dstlen < 2) goto buffer_too_small; + + if(dst) + { + *dst++ = (jschar)((v >> 10) + 0xD800); + v = (jschar)((v & 0x3FF) + 0xDC00); + } + dstlen--; + } + } + + if(!dstlen) goto buffer_too_small; + if(dst) *dst++ = (jschar) v; + + dstlen--; + offset += n; + src += n; + srclen -= n; + } + + *dstlenp = (origDstlen - dstlen); + return JS_TRUE; + +bad_character: + *dstlenp = (origDstlen - dstlen); + return JS_FALSE; + +buffer_too_small: + *dstlenp = (origDstlen - dstlen); + return JS_FALSE; +} + +JSString* +dec_string(JSContext* cx, const char* bytes, size_t byteslen) +{ + JSString* str = NULL; + jschar* chars = NULL; + size_t charslen; + + if(!dec_charbuf(bytes, byteslen, NULL, &charslen)) goto error; + + chars = JS_malloc(cx, (charslen + 1) * sizeof(jschar)); + if(!chars) return NULL; + chars[charslen] = 0; + + if(!dec_charbuf(bytes, byteslen, chars, &charslen)) goto error; + + str = JS_NewUCString(cx, chars, charslen - 1); + if(!str) goto error; + + goto success; + +error: + if(chars != NULL) JS_free(cx, chars); + str = NULL; + +success: + return str; +} diff --git a/apps/couch/c_src/couch_js/utf8.h b/apps/couch/c_src/couch_js/utf8.h new file mode 100644 index 00000000..00f6b736 --- /dev/null +++ b/apps/couch/c_src/couch_js/utf8.h @@ -0,0 +1,19 @@ +// Licensed under the Apache License, Version 2.0 (the "License"); you may not +// use this file except in compliance with the License. You may obtain a copy of +// the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations under +// the License. + +#ifndef COUCH_JS_UTF_8_H +#define COUCH_JS_UTF_8_H + +char* enc_string(JSContext* cx, jsval arg, size_t* buflen); +JSString* dec_string(JSContext* cx, const char* buf, size_t buflen); + +#endif \ No newline at end of file -- cgit v1.2.3